(15 points) a 4000-w electric resistance heater is heating water in an insulated, constant diameter tube. if the water enters the heater steadily at 315 k and leaves at 360 k, determine the mass flow rate of water in kg/s.

Answers

Answer 1

The mass flow rate of water is 0.08757 kg/s

Calculation

mCp (T2 - T1) = Q =w

m x 1.015 (360-315) = 4000

m = 4000/ 1.015 x 10^3 x (360-315)

m = 0.08757 kg/s

The density of water at 68°F / 20°C has a flow rate in our example of about 998 kg/m3. However, as the density of water varies with temperature, salinity, and pressure, use our water density calculator if you want to be extremely accurate. 30.58 lbs/s of mass flow were shown by the gadget.

How is water mass flow calculated?

By dividing the volume flow rate by the fluid’s mass density, one can determine the mass flow rate. The cross-sectional vector area, A, is multiplied by the flow velocity of the mass elements, v, to determine the volume flow rate.

What is the mass flow rate in units?

The mass of a substance that moves per unit of time is known as the mass flow rate in physics and engineering.

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Related Questions

Harrison kicks a soccer ball which rolls across a field with a velocity of 5 m/s. What is the ball's translational kinetic energy? You may assume that the ball is a hollow sphere of mass 0.43 kg and radius What is the ball's rotational kinetic energy? What is the total kinetic energy? In a different experiment the same soccer ball starts from rest and rolls down the hill as shown. Find the speed of the ball's center of mass at the bottom of the incline. L-23 m 0 35

Answers

The ball's translational kinetic energy is  11.25 J.

The rotational kinetic energy of a sphere is calculated by the equation KE = ½Iω.

The total kinetic energy is 11.25 J.

The speed of the ball's center of mass at the bottom of the incline can be calculated using the equation v² = v0² + 2ax.

What is rotational kinetic energy?

The rotational kinetic energy of a sphere is calculated by the equation KE = ½Iω², where I is the moment of inertia and ω is the angular velocity.

The translational kinetic energy of a soccer ball is calculated by the equation KE = ½ mv², where m is mass and v is velocity. In this case, the mass of the soccer ball is 0.43 kg and the velocity is 5 m/s. Therefore, the translational kinetic energy is 11.25 J.

The rotational kinetic energy of a sphere is calculated by the equation KE = ½Iω², where I is the moment of inertia and ω is the angular velocity. The moment of inertia of a hollow sphere is given by I = 2/5 mr², where m is the mass and r is the radius.

The radius of the soccer ball is not given, so we cannot calculate the rotational kinetic energy.

The total kinetic energy of the soccer ball is the sum of its translational and rotational kinetic energies. Since we do not know the rotational kinetic energy, the total kinetic energy is 11.25 J.

In the different experiment, the soccer ball starts from rest, so its initial velocity is 0 m/s. Since the ball is rolling down an incline, it is being accelerated by gravity.

The speed of the ball's center of mass at the bottom of the incline can be calculated using the equation v² = v0² + 2ax, where v0 is the initial velocity, a is the acceleration due to gravity and x is the distance traveled.

Since we do not know the distance traveled, we cannot calculate the speed of the ball's center of mass.

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Four landing sites are proposed for a lander. Data about the sites are listed in the table.

A 3 column table with 4 rows. The first column is labeled landing site with entries W, X, Y, Z. The second column is labeled height above surface in meters with entries 32, 16, 35, 12. The last column is labeled acceleration due to gravity in meters per second squared with entries 1.6, 3.7, 1.6, 3.7.
At which landing site would the lander have the greatest amount of gravitational potential energy?

W
X
Y
Z

Answers

The greatest amount of gravitational potential energy at landing site X

What is the greatest  gravitational potential energy?

To calculate the gravitational potential energy at each landing site, we can use the formula:

Gravitational Potential Energy (PE) = mass × acceleration due to gravity × height above surface

If the mass is assumed to be constant, we can ignore it and focus on the acceleration due to gravity and height above the surface.

From the table, we can see that the lander would have the greatest amount of gravitational potential energy at landing site X, with a value of 592.8 Joules.

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Four landing sites are proposed for a lander. Data about the sites are listed in the table.A 3 column

what is the terminal voltage (in v) of a large 1.05 v carbon-zinc dry cell used in a physics lab to supply 1.50 a to a circuit, if the cell's internal resistance is 0.150 ω?

Answers

The terminal voltage of the large 1.05 V carbon-zinc dry cell is 0.825 V when supplying 1.50 A to a circuit with an internal resistance of 0.150 Ω.

To calculate the terminal voltage of the carbon-zinc dry cell, we can use Ohm's Law which states that V = I*R, where V is the voltage, I is the current, and R is the resistance.

In this case, the current is given as 1.50 A and the internal resistance is 0.150 Ω. So,

V = I*R
V = 1.50 A * 0.150 Ω
V = 0.225 V

However, this is the voltage drop across the internal resistance of the cell. To find the terminal voltage, we need to subtract this voltage drop from the initial voltage of the cell, which is 1.05 V.

Terminal voltage = Initial voltage - Voltage drop
Terminal voltage = 1.05 V - 0.225 V
Terminal voltage = 0.825 V

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A wave with period 12,222 s and wavelength 15,000m has a wave speed of ? (round your answer to the nearest hundreth. add a zero to the begining of the number if necessary.)

Answers

The speed of wave is found as 1.23 m/s for the given wavelength of 15,000 m.

Define the term wavelength of wave?The interval between two successive troughs or crests of a wave is known as its wavelength. It is determined in the wave's direction.The wavelength of a wave, specifically the points about an electromagnetic wave, is the separation between successive crests. Two points or particles that are in the same sequence., points that have accomplished identical portions of their periodic motion—are referred to as "corresponding points."

For the stated question-

Time period T = 12,222 s.

Frequency f = 1/T = 1/12,222 Hz.

Wavelength λ = 15,000 m

By the relation of Frequency and Wavelength.

Speed of wave = Wavelength x frequency

Speed of wave = 15,000 x 1/12,222

Speed of wave = 1.23 m/s

Thus, the speed of the wave is found as 1.23 m/s for the given wavelength of 15,000 m.

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If a central angle with its vertex at the center of the earth has a measure of 1', then the arc on the surface of the earth that is cut off by this angle (known as the great circle distance) has a measure of 1 nautical mile (see the figure below).
Find the number of regular (statute) miles in 1 nautical mile to the nearest hundredth of a mile. (Use 4,000 miles for the radius of the earth.)

Answers

To find the number of regular (statute) miles in 1 nautical mile, we need to determine the length of the arc on the surface of the earth that corresponds to 1 nautical mile.

We are given that the central angle formed at the center of the earth has a measure of 1'. We know that the circumference of a circle is given by 2πr, where r is the radius of the circle. In this case, the radius of the earth is given as 4,000 miles.To find the length of the arc corresponding to 1', we can use the formula for the circumference of a circle and convert the angle measure from minutes to radians:C = 2πr
Arc Length = C * (θ/360) (where θ is the angle measure in degrees)In this case, the angle measure is given as 1', which is equal to 1/60 degrees or (1/60) * (π/180) radians.
Arc Length = 2π * 4,000 miles * [(1/60) * (π/180)]
Simplifying the expression:Arc Length = (2 * π * 4,000 * 1 * π) / (60 * 180) miles
Arc Length = (8 * π² * 4,000) / (60 * 180) miles
Arc Length ≈ 110.6 miles
Therefore, the length of the arc on the surface of the earth that corresponds to 1 nautical mile is approximately 110.6 miles.To find the number of regular (statute) miles in 1 nautical mile, we can divide 1 nautical mile by the length of the arc:Number of regular miles in 1 nautical mile = 1 nautical mile / 110.6 miles
Number of regular miles in 1 nautical mile ≈ 0.00904 miles
Rounded to the nearest hundredth of a mile, the number of regular miles in 1 nautical mile is approximately 0.01 miles.

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A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and perpendicular to the plate. (See the figure below (Figure 1) .)

Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are F1 = 17.0 N, F2 = 27.0 N, and F3 = 13.0 N. The plate and all forces are in the plane of the page. (N.m)

the answer 1.73 is incorrect

Answers

The net torque to that axis due to three forces is 2.554 Nm.

How to calculate the net torque?

\(F_1\) = forces 1 = 17 N

\(F_2\) = forces 2 = 27 N

\(F_3\) = forces 3 = 13 N

α = side of metal plate = 0.18 m

Net torque can be calculated by multiple the forces by distance. For the question, the  \(F_1\) will be negative because the forces of \(F_3\) will move the square metal plate to that side.

Net torque = \(-F_1\frac{a}{2} + F_2\frac{a}{2} + F_3 sin(45)\frac{a}{2} + F_3 cos(45)\frac{a}{2}\)

= \(-17\frac{0.18}{2} + 27\frac{0.18}{2} + 13sin(45)\frac{0.18}{2} + 13 cos(45)\frac{0.18}{2}\)

= -1.53 + 2.43 + 0.827 + 0.827

= 2.554 Nm.

Thus, the net torque for that three forces shown in the figure is 2.554 Nm.

You question is incomplete, but most probably your full question was

(image attached)

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A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and


how does cognitive distraction differ between various secondary in-vehicle activities

Answers

Cognitive distraction refers to the mental engagement required for a task while driving. The level of cognitive distraction can vary depending on the secondary in-vehicle activity being performed.

Here are a few examples of how cognitive distraction can differ between various secondary in-vehicle activities:

1. Talking on the phone: Engaging in a phone conversation requires a moderate level of cognitive distraction. It can divert your attention from the road and impact your ability to react quickly to potential hazards.

2. Texting: Texting requires a high level of cognitive distraction. It involves visual, manual, and cognitive tasks simultaneously, greatly increasing the risk of accidents.

3. Listening to music: Listening to music can be a low level of cognitive distraction, depending on the complexity of the task. For example, changing the radio station or searching for a specific song can increase the level of distraction.

4. Using navigation systems: Following navigation instructions can be a moderate level of cognitive distraction. While it is important for navigating unfamiliar routes, it can divert attention away from the road.

It's important to note that any secondary in-vehicle activity has the potential to distract drivers and should be minimized while driving to ensure safety.

In summary, cognitive distraction can vary between different secondary in-vehicle activities, ranging from low to high levels of distraction. Being aware of these differences can help drivers make safer choices while on the road.

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how many protons are in this atom if it has a balanced charge

Answers

It would be 20 protons left because 1-19= 20

Which term best describes the motion of the rope particles in relation to the motion of the rope wave shown in the photograph?
A. Perpendicular
B. Longitudinal
C. Parallel
D. Circularn​

Which term best describes the motion of the rope particles in relation to the motion of the rope wave

Answers

Answer:

A. Perpendicular

Explanation:

Clarification:

The inquiry is inadequate as it does not have the picture of the rope wave movement.

From all that, we can say that;

The rope's are moving at the same time in a similar example without contacting one another.

This is hence a mechanical wave being made with the movement having motions that are opposite to the course of energy move of the ropes.

This is a meaning of cross over waves in light of the fact that the rope molecule movement is opposite to the wave movement.

Perpendicular describes the motion of the rope particles in relation to the motion of the rope wave shown in the photograph. Hence option A is Correct.

What is wave ?

Wave is is a disturbance in a medium that carries energy as well as momentum . wave is characterized by amplitude, wavelength and phase.

Amplitude is the greatest distance that the particles are vibrating. especially a sound or radio wave, moves up and down. Amplitude is a measure of loudness of a sound wave. More amplitude means more loud is the sound wave.

Wavelength is the distance between two points on the wave which are in same phase.

Phase is the position of a wave at a point at time t on a waveform.

There are two types of the wave longitudinal wave and transverse wave.

Longitudinal wave : in which, vibration of the medium (particle) is parallel to propagation of the wave.  Sound wave is a longitudinal wave.

Transverse wave : in which, vibration of the medium (particle) is perpendicular to propagation of the wave. Light wave is a longitudinal wave.

In the picture we can see that wave is traveling in the direction out of the paper and rope particle is vibrating along Y axis perpendicular to the propagation of the wave.

Hence Perpendicular option is correct.

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Two people are pulling the same 12 kg box along a flat, frictionless surface. One
pulls up and to the right with a 30 N force at 20°, the second pulls up and to the left
with a 45 N force at 50°. What is the acceleration of the box?
3.00 m/s^2
09.80 m/s^2
O 1.474 m/s^2
0.474 m/s^2

Answers

Answer:

The acceleration is 0.062 m/s^2.

Explanation:

mass = 12 kg

F = 30 N at 20° right

F' = 45 N at 50° left

Let the acceleration is a.

The net force is

F'' = F' cos 50° - F cos 20°

F'' = 45 x 0.643 - 30 x 0.94 = 28.94 - 28.2 = 0.74 N

According to the Newton's second law

0.74  = 12 x a

a = 0.062 m/s^2

true of false? venus does not go through phases - only the moon does. explain your answer. true of false? jupiter does not go through phases - only the moon does. explain your answer. true of false? the full phase of venus cannot be seen from earth. explain your answer. true of false? the new phase of venus cannot be seen from earth. explain your answer.

Answers

True, Venus is at its greatest distance from Earth during its full phase, it cannot be seen since it is hidden by the Sun.

Explain about the Planet?

A planet is a celestial body that meets the following criteria: (a) it orbits the Sun; (b) it has enough mass for its self-gravity to outweigh rigid body forces, assuming a hydrostatic equilibrium shape that is roughly circular; and (c) it has cleared the area in and around its orbit.

These planets resemble stars to the unaided eye. The planets did, however, shift in relation to the stars. They were given the name "wandering stars" as a result. The Greek word planets, which means "wanderer," is where our term "planet" originates.

The planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, listed in order of their distance from the Sun.

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Which of the following is an example of a contractile source of motion restriction?

Answers

An example of a contractile source of motion restriction is the contraction of muscles in the human body.

Muscles in the human body play a crucial role in generating movement and controlling motion. Through the process of contraction, muscles have the ability to restrict or limit motion at specific joints, acting as a contractile source of motion restriction.

When muscles contract, they exert a pulling force on the bones they are connected to, resulting in movement at the joints. This contraction is achieved through the interaction of actin and myosin filaments within the muscle fibers. When a signal from the nervous system triggers muscle activation, calcium ions are released, allowing the actin and myosin filaments to slide past each other. This sliding motion generates force, causing the muscle fibers to shorten and contract.

By selectively contracting specific muscles, it is possible to restrict or limit motion at certain joints. For example, when you contract your bicep muscle, it restricts the motion at the elbow joint, causing the arm to bend. Similarly, when you contract your quadriceps muscles, they restrict the motion at the knee joint, allowing you to extend or straighten your leg.

In summary, the contraction of muscles serves as a contractile source of motion restriction. Through their ability to generate force and control joint movement, muscles play a crucial role in enabling and regulating various motions in the human body.

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A projectile is launched from a height y0 = 0. for a given launch angle, if the launch speed is doubled, what will happen to the range r and t?

Answers

When the launch speed is doubled, both the range and time of flight of the projectile will increase. This is because the increased speed allows the projectile to cover a greater horizontal distance before hitting the ground.

When the launch speed of a projectile is doubled, both the range (r) and the time of flight (t) will increase.

To understand this, let's consider the physics of projectile motion. The range of a projectile is the horizontal distance it travels before hitting the ground. The time of flight is the total time the projectile is in the air.

When the launch speed is doubled, the projectile will cover a greater horizontal distance before hitting the ground. This means that the range will also increase. This can be seen by considering that the horizontal distance is directly proportional to the initial velocity.

Additionally, the time of flight will also increase. This is because the projectile will take longer to cover the increased distance. The time of flight is directly proportional to the range.

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consider a strontium ion. there are four shells in this ion. how many electrons does it have in...

Answers

A strontium ion has four shells in this ion, so the number of electrons it have in is  36 electrons 29.

The chemical element strontium is a soft, silver-white, yellowish metallic element that is an alkaline earth metal and has a strong reactivity to chemicals. The most prevalent type of strontium found in dietary supplements is strontium chloride. Several distinct forms of strontium are employed in medicine.

Subatomic particles known as electrons have an intrinsic charge of magnitude -1. The size of an electron's charge is comparable to that of a proton, but its symbol is the opposite. The amount of electrons and protons in electrically neutral atoms and molecules should therefore be equivalent.

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1. A toy car is marked to go at 0.5m/s, which of the following sets of
experimental numbers stay precise? *
a. 1.5m/s, 0.9m/s, 0.8m/s, 1.1m/s
O b. 0.6m/s, 0.7m/s, 0.61m/s, 0.62m/s
c. 2.1 m/s, 2.0m/s, 2.03m/s, 2.4m/s
d. 3.1m/s, 3.0m/s, 2.9m/s, 3.0m/s

Answers

Answer:

b. 0.6m/s, 0.7m/s, 0.61m/s, 0.62m/s

Explanation:

Precision of a measurement is the closeness of the experimental values to one another. Hence, experimental measurements are said to be precise if they are close to each other irrespective of how close they are to the accepted value. Precision can be determined by finding the range of each experimental value. The measurement with the LOWEST RANGE represents the MOST PRECISE.

Note: Range is the highest value - lowest value

Set A: 1.5 - 0.8 = 0.7

Set B: 0.7 - 0.6 = 0.1

Set C: 2.4 - 2.0 = 0.4

Set D: 3.1 - 2.9 = 0.2

Set B has the lowest range (0.1), hence, represent the most precise value.

The absolute brightness of a star depends on its _____.
a. size and temperature
b. distance an temperature
c. color and temperature
d. distance and color

Answers

Option A. The absolute brightness of a star depends on its size and temperature

What is the  absolute brightness of a star

The absolute brightness of a star is the amount of light it emits at a standard distance from Earth, regardless of how far away it actually is.

The size and temperature of a star are the primary factors that determine its absolute brightness. The size of the star affects the amount of light it emits, with larger stars emitting more light. The temperature of a star affects the color of the light it emits, with hotter stars emitting bluer light and cooler stars emitting redder light. Both of these factors play a significant role in determining a star's absolute brightness.

Distance and color can also affect a star's brightness, but in different ways. The distance of a star affects its apparent brightness as seen from Earth, but not its absolute brightness. The color of a star can provide information about its temperature and composition, but does not directly determine its absolute brightness.

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An airplane with an airspeed of 120.0 km/h has a heading of 30.0° east of north in a wind that is blowing toward the west at 30.0 km/h. What is the approximate speed of the plane relative to the ground?

Answers

The airplane's airspeed is 120.0 km/h, with a heading of 30.0° east of north. We can break this down into northward and eastward components. The northward component is 120.0 km/h * cos(30.0°) ≈ 103.9 km/h, and the eastward component is 120.0 km/h * sin(30.0°) ≈ 60.0 km/h.

The wind is blowing towards the west at 30.0 km/h, so it has a westward component of 30.0 km/h.

To find the airplane's ground speed, we need to combine these components. The northward component remains unchanged at 103.9 km/h, while the eastward component gets reduced due to the westward wind, giving us 60.0 km/h - 30.0 km/h = 30.0 km/h.

Now, we can find the resultant ground speed using the Pythagorean theorem: √((103.9 km/h)^2 + (30.0 km/h)^2) ≈ 107.9 km/h.

So, the approximate speed of the plane relative to the ground is 107.9 km/h.

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what kind of planets will exhibit a significant number of impact craters after five billion years, with relatively few features due to other geological processes?

Answers

Planets that are geologically inactive, such as small rocky planets like Mercury and the Moon or large icy bodies like Pluto, will exhibit a significant number of impact craters after five billion years, with relatively few features due to other geological processes.

Planets that have a significant number of impact craters and few other geological features after five billion years are typically characterized by limited or negligible geological activity. This means that the processes that can erase or modify impact craters, such as tectonic activity, volcanic activity, or erosion, are not prominent on these planets.

Small rocky planets like Mercury and the Moon, as well as large icy bodies like Pluto, fall into this category. These worlds lack active plate tectonics or volcanic activity, and their surfaces have remained relatively unchanged over long periods. Consequently, impact craters accumulate over time without being extensively erased or altered by geological processes.

The accumulation of impact craters provides valuable information about the history and age of a planet's surface. By studying the number, distribution, and characteristics of impact craters, scientists can gain insights into the geological and evolutionary processes that have shaped these worlds throughout their history.

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what was a p-26a donald duk

Answers

The P-26A was a fighter aircraft used by the United States Army Air Corps in the 1930s, while "Donald Duk" is a novel by Frank Chin about a young Chinese American boy growing up in San Francisco's Chinatown.

The P-26A is a fighter aircraft that was used by the United States Army Air Corps in the 1930s. It was also known as the "Peashooter" due to its small caliber machine guns. The P-26A was designed by Boeing and was the first all-metal monoplane fighter used by the US Army Air Corps.

On the other hand, "Donald Duk" is a novel by Frank Chin about a Chinese American boy growing up in San Francisco's Chinatown. The novel primarily deals with themes of cultural identity, heritage, and belonging, and there is no apparent connection to the P-26A fighter aircraft.

To the best of my knowledge, there is no such thing as a "P-26A Donald Duk," and it is possible that there may be some confusion or misunderstanding about what is being referred to.

There is no apparent connection between the two, and the term "P-26A Donald Duk" does not seem to refer to anything specific.

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What is a p-26a in donald duk?

Can someone help me solve number 3 for chemical equations?

Can someone help me solve number 3 for chemical equations?

Answers

Answer:

I'm pretty sure it should be 4KClO3-->3KClO4+1KCl

Explanation:

guys pls thi is my last pointa just answer this!!!!(WILL GIVE BRAINLY) A student takes apart a wooden box. What can they build with the materials from the box?
A) They cannot make anything with the materials.
B) They can make something new with the materials.
C) They can only make a wooden box from the materials.​​

Answers

Answer:

i guess u could pick "B" :)

Explanation:


A penny is dropped from a building that is 95 m tall. How long does it take the penny to hit the ground below?

Answers

Answer:

The penny would take 10 seconds to fall.

Explanation:

Hope this helps!!

If a penny is dropped from a building that is 95 m tall then it would 3.111 seconds take the penny to hit the ground below

What are the three equations of motion?

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

Keep in mind that these calculations only apply to uniform acceleration.

As given in the problem, A penny is dropped from a building that is 95 m tall,the initial velocity of the penny is zero, the acceleration acting is due to the acceleration due to gravity

height of the building (S) = 95 meters

initial velocity(u) = 0 m/s

acceleration(a) = 9.81 m/s²

By using the second equation of motion given by newton

S = ut + 1/2at²

S = 95 m ,u= 0 m/s , a= 9.81 m/s² and t =? seconds

95 = 0 + 9.81t²

t² = 95/9.81

t = 3.111 seconds

Thus, if a penny is dropped from a building that is 95 m tall then it would   take 3.111 seconds for the penny to hit the ground below

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What is
meant by (a) Material Properties ( b) Mass Fabric and (c) Mass
Properties in Price's verbal Equation?

Answers

In Price's verbal equation, material properties refer to the characteristics and behaviors of a material, mass fabric relates to the distribution and arrangement of mass within a structure, and mass properties involve the quantitative measures of mass distribution and its effects on the structural performance.

(a) Material properties in Price's verbal equation pertain to the specific attributes and qualities of a material that influence its mechanical behavior, such as strength, stiffness, density, thermal conductivity, and elasticity. These properties determine how a material will respond to external forces and environmental conditions, and they play a crucial role in the design and analysis of structures.

(b) Mass fabric refers to the spatial arrangement and distribution of mass within a structure. It considers the organization, orientation, and connectivity of the structural elements that contribute to the overall mass distribution. Mass fabric affects the structural behavior, load transfer paths, and structural efficiency of a system. By understanding the mass fabric, engineers can optimize the arrangement of components to achieve desired structural performance.

(c) Mass properties involve the quantitative measures of mass distribution within a structure and its impact on its mechanical behavior. Mass properties include parameters such as mass, center of mass, moments of inertia, and radii of gyration. These properties provide important information for analyzing the dynamic response, stability, and vibrational characteristics of structures. They also influence the structural design, material selection, and optimization processes.

In Price's verbal equation, these concepts collectively contribute to understanding the behavior and performance of structures, enabling engineers to make informed decisions in design, analysis, and optimization. By considering material properties, mass fabric, and mass properties, a comprehensive understanding of the structural system can be achieved.

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what is the relationship between harmonics and resonance frequency in a piano

Answers

Fundamental and Harmonics
Most vibrating objects have more than one resonant frequency and those used in musical instruments typically vibrate at harmonics of the fundamental. A harmonic is defined as an integer (whole number) multiple of the fundamental frequency.

There is direct relationship between harmonics and resonance frequency.

A harmonic is a wave with a frequency that is a positive integer multiple of the frequency of the original wave whereas, resonance frequency is the frequency at which the oscillation reaches to its maximum point. The lowest resonant frequency is known as the fundamental, while on the other hand, the higher resonant frequencies are called overtones. All resonant frequencies are multiples of the fundamental, and are called harmonics. So we can conclude that there is a direct relationship between harmonics and resonance frequency.

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Is it Sheer or shear force?

Answers

Shear force a type of force that acts parallel to a surface and causes deformation or failure of a material when applied perpendicular to its surface

Shear force, also known as shear, is a type of force that acts parallel to a surface, often causing one part of the surface to move in one direction while the other part moves in the opposite direction. It is a force that causes the deformation or failure of a material when it is applied perpendicular to the surface of the material. Shear force is commonly encountered in engineering and physics, where it plays an important role in the behavior of materials and structures subjected to external forces.

In mechanics, when a force is applied to a solid object, it may cause the object to deform or break. The shear force is the force that causes the layers of the object to slide past each other, leading to the deformation or failure of the object. In civil engineering, shear forces can be a significant factor in the design of structures such as bridges and buildings.

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Element x has two isotopes. If 72. 0% of the element has an isotopic mass of 84. 9 amu and 28. 0% has an isotopic mass of 87. 0 amu, the average atomic mass of element x is numerically equal to.

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The average atomic mass of element X is numerically equal to 85.48 amu.

Isotopes can be defined as the variants of chemical elements that possess the same number of protons and electrons, but a different number of neutrons. In other words, isotopes are variants of elements that differ in their nucleon ( The total number of protons and neutrons) numbers due to a difference in the total number of neutrons in their respective nuclei. i.e. same atomic number but different masses.

Given , Percentage of isotope 1 = 72%

            Percentage of isotope 2 = 28%

            Mass of isotope 1 = 84.9 amu

            Mass of isotope 2 = 87 amu

i.e.

Average atomic mass = (0.72 * 84.9) + (0.28 * 87) = 85.48 amu

So the average atomic mass of element X is numerically equal to 85.48 amu.

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What is the difference between heat capacity, specific heat, and latent heat? Select all statements that are true.• Latent heat describes the amount of heat energy required to change the temperature of an object.• Specific heat and heat capacity describe the amount of heat energy required to change the temperature of an object.• Heat capacity depends on the mass of the object while specific heat only depends on the material the object is made of• Specific heat and heat capacity describe the amount of heat energy exchanged to change the phase of an object.• Specific heat depends on the mass of the object while heat capacity only depends on the material the object is made of• Latent heat describes the amount of heat energy exchanged to change the phase of an object.

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The difference between  specific heat, heat capacity, and latent heat can be defined as

B: Specific heat and heat capacity describe the amount of heat energy required to change the temperature of an object.E: Heat capacity depends on the mass of the object while specific heat only depends on the material the object is made of.F: Latent heat describes the amount of heat energy exchanged to change the phase of an object.

Latent heat is the amount of heat energy required to change the phase of an object, such as from a solid to a liquid or a liquid to a gas, without changing its temperature. Specific heat and heat capacity describe the amount of heat energy required to change the temperature of an object, and the relationship between them is defined as heat capacity = mass * specific heat. The specific heat of a material is a property that depends only on the material, while heat capacity depends on both the material and the mass of the object.

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John walks four kilometers east, two kilometers north as shown in the diagram below. What is John’s displacement

4 km

11 km

2 km north

7 km east

John walks four kilometers east, two kilometers north as shown in the diagram below. What is Johns displacement

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not 100% positive, but i believe 7 km east?
I think its 7 km east

The ________ smooths out the pressure pulses in the exhaust system, allowing them to be released at an even and constant rate.

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The muffler smooths out the pressure pulses in the exhaust system, allowing them to be released at an even and constant rate.

An exhaust system is a system used by an engine to channel out gasses created when the fuel and air are burned in the combustion chamber.

Some components of an exhaust system include:

clampsoxygen sensor andMufflers

The muffler of the exhaust system helps it to achieve its functions which include it:

control noise, carry away gases, improve engine performance and improve fuel consumption

The muffler are used mainly to dissipate the loud sounds created by the engine's pistons and valves.

Therefore, muffler smooths out the pressure pulses in the exhaust system, allowing them to be released at an even and constant rate.

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A car is driven off an over-pass that is 10m above ground. The vehicle was travelling horizontally at 60km/hr.

a) Determine the vehicle's initial vertical speed in m/s.

b) Determine the vehicle’s initial horizontal speed in m/s.

c) Using your answer from part a), determine the time it takes for vehicle to hit the ground 10cm below.

d) Based on your results in b) and c), determine the “Range” of the trajectory

e) Determine the vertical component of the impact speed.

f) Determine the horizontal component of the impact speed.

g) Determine the actual diagonal impact speed.

h) Determine the angle of the impact speed as measured from the horizontal ground.

Answers

The vehicle's initial vertical speed was 14.0 m/s.The vehicle's initial horizontal speed was  16.7 m/s. it takes 1.49 seconds for the vehicle to hit the ground 10 cm below. The angle of the impact speed is 42 degrees.

a) To determine the initial vertical speed of the car, we can use the formula:

v^2 = u^2 + 2as

where

v = final velocity (when the car hits the ground), which is 0 m/s

u = initial velocity (what we need to find)

a = acceleration due to gravity, which is 9.81 m/s^2 (assuming no air resistance)

s = distance fallen, which is 10 m

Plugging in the values, we get:

0^2 = u^2 + 2(9.81)(10)

u^2 = 196.2

u ≈ 14.0 m/s

Therefore, the vehicle's initial vertical speed was approximately 14.0 m/s.

b) The vehicle's initial horizontal speed is given as 60 km/hr. We need to convert this to m/s:

60 km/hr = 60/3.6 m/s ≈ 16.7 m/s

Therefore, the vehicle's initial horizontal speed was approximately 16.7 m/s.

c) We can use the same formula as in part a) to determine the time it takes for the vehicle to fall 10 cm (0.1 m):

v^2 = u^2 + 2as

0^2 = (14.0)^2 + 2(-9.81)(0.1)

t = (14.0 - sqrt(196.2))/(-9.81)

t ≈ 1.49 s

Therefore, it takes approximately 1.49 seconds for the vehicle to hit the ground 10 cm below.

d) The range of the trajectory is the horizontal distance travelled by the car before hitting the ground. We can use the formula:

range = horizontal speed x time

where

horizontal speed = 16.7 m/s (from part b)

time = 1.49 s (from part c)

Plugging in the values, we get:

range = 16.7 x 1.49 ≈ 24.9 m

Therefore, the range of the trajectory is approximately 24.9 m.

e) The vertical component of the impact speed can be calculated using the formula:

v = u + at

where

u = 14.0 m/s (from part a)

a = 9.81 m/s^2 (acceleration due to gravity)

t = 1.49 s (from part c)

Plugging in the values, we get:

v = 14.0 + (9.81)(1.49)

v ≈ 28.5 m/s

Therefore, the vertical component of the impact speed is approximately 28.5 m/s.

f) The horizontal component of the impact speed remains constant at 16.7 m/s (from part b).

Therefore, the horizontal component of the impact speed is approximately 16.7 m/s.

g) We can use the Pythagorean theorem to find the diagonal impact speed:

diagonal impact speed = sqrt(vertical impact speed^2 + horizontal impact speed^2)

= sqrt(51.84^2 + 60^2)

= 78.48 m/s

h) We can use the inverse tangent function to find the angle of the impact speed as measured from the horizontal ground:

angle = tan^-1(vertical impact speed / horizontal impact speed)

= tan^-1(51.84 / 60)

= 41.99 degrees

Therefore, the angle of the impact speed is approximately 42 degrees.

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