a block is on a frictionless table, on earth. the block accelerates at 5.3 m/s2 when a horizontal force is applied to it. the block and table are set up on the moon where the acceleration due to gravity is 1.62 m/s2. a horizontal force of 5 n is now applied to the block when it is on the moon. the acceleration imparted to the block by this force is closest to
Answers
The block now experiences a 5 n horizontal force while it is on the moon. This force accelerates the block at a rate that is most closely related to 2.65m/s2.
Describe friction.An outside force known as friction works against the relative motion of two contact points. At the place where the two bodies come into contact, friction develops. Any time one thing moves relative to another, it is relative motion.
What does gravitational acceleration entail?The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity. M/s is its SI unit. Its vector nature—which includes both magnitude and direction—makes it a quantity.
Briefing:
Mass, m = F/a = 10/5.3 = 1.89
To calculate acceleration, F = ma
a = F/m = 5/1.89 = 2.65 m/s²
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Related Questions
Can anyone pls help me out in dis i am struggling in dis!
Answers
Answer:
Last option - E
Answer:
The obvious answer would be letter E
Explanation:
mention the cause of wasting
Answers
Answer:
Causes. Wasting can be caused by an extremely low energy intake (e.g., caused by famine), nutrient losses due to infection, or a combination of low intake and high loss. Infections and conditions associated with wasting include tuberculosis, chronic diarrhea, AIDS, and superior mesenteric artery syndrome
Mathematically, how does kinetic energy depend on speed? HINT: If speed doubles (from 11 m/s to 22 m/s), what happens to the kinetic energy?
Answers
Taking into account the definition of kinetic energy, the kinetic energy depends on the speed following the following expression Ec = 1/2×m×v² and if the speed is doubled, the kinetic energy is quadrupled.
Definition of kinetic energyKinetic energy is the energy possessed by a body or system due to its movement.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a certain mass and in a position of rest, until it reaches a certain speed. Once the final speed is reached, the amount of kinetic energy accumulated will remain constant, that is, it will not vary, unless another force acts on the body again.
Kinetic energy is represented by the following expression:
Ec = 1/2×m×v²
Where:
Ec is kinetic energy, which is measured in Joules (J).m is mass measured in kilograms (kg).v is velocity measured in meters over seconds (m/s).Kinetic energy if speed doublesIn this case, if speed doubles, you know:
speed at start: v₁doubled speed: v₂= 2×v₁Replacing in the definition of kinetic energy:
When considering the speed at the start:Ec = 1/2×m×v₁²
When doubled speed is considered:Ec = 1/2×m×v₂²
Ec = 1/2×m×(2×v₁)²
Ec = 1/2×m×2²×v₁²
Ec = 1/2×m×4×v₁² or Ec = 4×1/2×m×v₁²
Finally, if the speed is doubled, the kinetic energy is quadrupled.
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The distance between the sun and the earth is 1.5 * 10^11. Use this information to calculate the mass of the sun.
I understand you're supposed to set the force of gravity equal to your centripetal force but why can't I use g=G(M/r^2) and solve for M, plugging in 9.81 as g, 6.67*10^-11 as G, and 1.5 * 10^11 as r?
Answers
Answer:
47288483 miles
Explanation:
It was revealed to me in a dream
reselasie3. An object of mass 900 kg is hanging from a ceilingby means of two strings. The first string (7₁) makes anangle of 40 degree with the horizontal-right. The second string(T₂) makes an angle of 20 degree with the horizontal-left.Calculate the tension in the first string (7₁) (2 point)A. O12034.001 NB. O14675.062 NC. 5790.32 ND. 09570.261 NE. 13316.872 N
Answers
First, find the weight of the object.
W = m g = 900 x 9.8 = 8,820 N
T2x = -t2 cos 20
t1 x = t1cos 40
mgx= 0
T2y= t2 sin 20
t1y= t1 sin 40
mgy= - mg
X and y components of resultant (R)
Rx = t1x -t2x + mgx
Rx= -t2 cos 20 + t1cos 40 (3)
Ry = t2 sin 20 + t1 sin 40 - mg(2)
Rx, and Ry = 0
0 = -t2 cos 20 + t1cos 40 (3)
0= t2 sin 20 + t1 sin 40 - mg (4)
Solve (3)
0 = -t2 cos 20 + t1cos 40
t2 cos 20 = t1 cos 40
t2 = t1 cos40/cos20
t2 = 0.815 t1
Substitute t2 in 4
0 = t2 sin 20 + t1 sin 40 - mg
0 = (0.815 t1) sin 20 + t1 sin 40 - 8,820
0= t1 ( 0.815 sin 20 + sin 40 ) -8820
0 = 0.921 t1 -8820
8820 = .921 t1
t1 = 8820/0.921
t1= 9570.261N (option D)
derive the first equation of motion by graphical representation
Answers
the first equation of motion, is determined as v = u + at.
What is the first equation of motion?The derivation of the first equation of motion by graphical representation is determined as follows;
Consider the diagram in the image attached;
Let, OE = time (t)
From the graph:
BE = AB + AE
v = DC + OD (QAB = DC and AE = OD)
v = DC + v [QOD = u]
v = DC + v -------(1)
Now, Acceleration, a= Change in Velocity/ Time taken
a = (v – u)/ t
a = (OC – OD)/ t = DC/ t
at = DC --------(2)
By substituting the value of DC from (2) in (1):
We get:
v = at + u
v = u + at
Thus, the first equation of motion, is the relationship between the final velocity, initial velocity, acceleration and time of motion.
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koppen's climate classification system is based mainly on which two factors
Answers
put the order of the light bulbs in these circuits from brightest to dimmest
Answers
the third one is the brightest, the second one is the second brightest, the first one is the second dimmest, and last but not least, the last one is the dimmest.
Explanation:
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The ecosystem with the greatest biodiversity is the one that has the greatest–
Group of answer choices
variety of living things.
average annual rainfall.
coverage of land area.
elevation above sea level.
Answers
Answer:
A) Variety of Living Things
Explanation:
Biodiversity is defined as the variety of life in the world or in a particular habitat or ecosystem.
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3. The disk in a computer starts to spin and spins up to 5400 rpm in 1. 5 seconds
Answers
The average angular acceleration of the hard disk is approximately 628.32 rad/s^2.
We can use the formula for average angular acceleration:
average angular acceleration = (final angular velocity - initial angular velocity) / time
where final angular velocity is the angular velocity at the end of the time interval, initial angular velocity is the angular velocity at the beginning of the time interval, and time is the duration of the time interval.
In this case, the final angular velocity is 5400 rpm, the initial angular velocity is 0 rpm (since the disk starts from rest), and the time is 1.5 seconds.
We need to convert the units of angular velocity from rpm (revolutions per minute) to rad/s (radians per second), since angular acceleration is usually expressed in radians per second squared. We can do this using the conversion factor:
1 revolution = 2π radians
So, 5400 rpm is equivalent to:
5400 rpm × (2π radians/1 revolution) = 56700 π/60 rad/s ≈ 942.48 rad/s
Similarly, the initial angular velocity is 0 rad/s.
Now we can substitute these values into the formula:
average angular acceleration = (final angular velocity - initial angular velocity) / time
= (942.48 rad/s - 0 rad/s) / 1.5 s
≈ 628.32 rad/s^2
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The given question is incomplete, the complete question is:
The disk in a computer starts to spin and spins up to 5400 rpm in 1. 5 seconds. what is the average angular acceleration of the hard disk?
Calculate the wavelength, in meters, of electromagnetic radiation needed to remove an electron from the valence shell of an atom of the element.
Answers
The wavelength of the electromagnetic radiation needed to remove an electron from the valence shell of an atom of the element is 2.7522m.
The electromagnetic (EM) field's waves, which travel across space carrying momentum and electromagnetic radiant energy, make up electromagnetic radiation (EMR). It consists of X-rays, gamma rays, microwaves, infrared, visible light, ultraviolet, and radio waves. These waves are all components of the electromagnetic spectrum.
We are given that,
Speed of light = c = 299 792 458 m
The frequency of electron = f = 1.09 × 10⁸ s⁻¹
The following equation can be used to determine the wavelength of a radio wave
Wavelength = λ = c/f
λ = c/f
λ = 299 792 458 m/s/ 1.09 × 10⁸ s⁻¹
λ = 2.7522m
Therefore the wavelength of the electromagnetic radiation would be 2.7522m.
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What is the difference between distance and displacement
Answers
Answer:
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Explanation:
Answer:
Distance is like school is 5 minutes from my house or the store is 2 miles for somewhere. Displacement is when you miss place or loss something, such as you lay your phone down and cant find it.
Explanation:
hope this helps, have a great day!
A satellite weighing 5,400 kg is launched into orbit 30,000 km above sea level. The mass of Earth is 6.0 × 1024 kg and its radius is 6,400 km. The gravitational constant is 6.673 × 10–11 N•m2/kg2. What is the gravitational force of Earth on the satellite in scientific notation with two decimals.
A satellite weighing 5,400 kg is launched into orbit 30,000 km above sea level. The mass of Earth is 6.0 × 1024 kg and its radius is 6,400 km. The gravitational constant is 6.673 × 10–11 N•m2/kg2 . What is the gravitational force of Earth on the satellite in scientific notation with two decimals.
–1.6 × 103 N
–1.63 × 103 N
–2.4 × 103 N
–5.27 × 104 N
Answers
The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N
How do I determine the gravitational force?The gravitaional force between two objects can be obtained by using the following formula:
F = GM₁M₂ / r²
Where
F is the gravitaional force G is the gravitational constant M₁ and M₂ are the masses of the objects r is the distance apartThe following data were obtained from he question:
Mass of satellite (M₁) = 5400 = 5.4×10³ KgHeight (h) = 30000 km = 30000 × 1000 = 30000000 mMass of Earth (M₂) = 6.0×10²⁴ KgRadius of Earth (R) = 6400 km = 6400 × 1000 = 6400000 mDistance apart (r) = R + h = 6400000 + 30000000 = 36400000 mGravitational constant (G) = 6.673×10¯¹¹ Nm²/Kg²Gravitational force (F) =?The gravitaional force can be obtained as shown below:
F = GM₁M₂ / r²
F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²
F = 1.63×10³ N
Thus, the gravitational force is 1.63×10³ N
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Which skill component can be improved by rowing?
Agility
Power
Coordination
Reaction time
Answers
Coordination can be improved by rowing. The capacity to synchronize several bodily components to carry out a movement or task with effectiveness and efficiency is known as coordination.
Why is coordination crucial in sports and other physical activities?Coordination is the ability to synchronize many body functions in order to perform an action or task effectively and efficiently. Because it enables people to carry out motions with accuracy, control, and balance, it is crucial in sports and physical activities because it can improve performance, lower the chance of injury, and save energy.
Can rowing enhance abilities other than coordination?Indeed, rowing can enhance your cardiovascular health and power. Rowing puts a lot of strain on the muscles in the legs, back, and arms, which can boost their strength and power. It can be a powerful form of aerobic exercise but calls for a high level of cardiovascular endurance. Yet, because rowing is a somewhat repetitive movement that does not ask for quick changes in direction or a quick response to external stimuli, it is not often linked to increases in agility or reaction speed.
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Does the polarity of rocks in the Aragorn Sea suggest that the Sea is currently expanding? If so, explain? (ngl I am so confused by this question),
-and no links please, thank you
Answers
Answer:
55.7
Explanation:
Michael’s family is building a new house. They would like to use electricity generated by renewable resources. Which of these power supplies would help the family accomplish its goal?
answer choices
gasoline engine
solar roof panels
coal power plant
nuclear power plant
Answers
Answer
solar
Explanation:
a lorry has a mass of 32000 kilograms. each tyre has an area of 400 cm squared in contact with the ground. calculate the pressure exerted on the ground if the lorry has 6 tyres
Answers
Answer:
Your answer is 1306666.6667 Pascal
if a sounds power level increases from 20 decibels to 50 decibels, by what factor does the power increase?
Answers
Answer:
the answer is source of sound
The power increases by a factor of \(10^3,\)or 1000. In other words, the final power level is 1000 times greater than the initial power level.
What is a decibel scale?The decibel (dB) scale is a logarithmic scale used to express the ratio of two power levels. The formula to calculate the ratio of two power levels in decibels is:
Ratio in dB = \(10 * log10 (P2/P1)\)
where P1 and P2 are the two power levels being compared.
To find the factor by which the power increases, we can rearrange this formula to solve for the ratio of the two power levels:
P2/P1 = 10^(dB/10)
In this case, the power level increases from 20 dB to 50 dB, so the ratio in dB is:
Ratio in dB = 50 dB - 20 dB = 30 dB
Substituting this value into the formula, we get:
\(P2/P1 = 10^(30/10) = 10^3\)
Therefore, the power increases by a factor of \(10^3,\) or 1000. In other words, the final power level is 1000 times greater than the initial power level.
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If a rock on a cliff starts with 3,000 J of GPE and 0 J of KE and ends with 0 J of GPE and 5,000 J of KE, what law of physics would this violate?
Answers
The law of physics that this scenario would violate is the law of conservation of energy.
What is the law of conservation of energy?The law of conservation of energy states that energy possessed by an object or physical body can neither be created nor destroyed but can only be transformed from one form to another.
This ultimately implies that, the energy possessed by the rock at the beginning must be equal to the energy possessed by the rock at the end in accordance with the law of conservation of energy.
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Resistance for conductor of uniform cross-sectional area can be found using the equation:
Answers
The resistance formula is an equation that allows us to calculate the resistance of a conductor given its dimensions and the properties of its material. The formula is: R = (ρ \(\times\)L) / A.
The resistance of a conductor is a measure of how difficult it is for an electric current to flow through it. The resistance is determined by several factors, including the material of the conductor, its length, and its cross-sectional area. The resistance formula is an equation that allows us to calculate the resistance of a conductor given its dimensions and the properties of its material.
The formula is:
R = (ρ \(\times\) L) / A
where R is the resistance, ρ is the resistivity of the material, L is the length of the conductor, and A is its cross-sectional area.
The resistivity (ρ) of a material is a measure of how well it conducts electricity. Materials with high resistivity, such as rubber or glass, are poor conductors of electricity, while materials with low resistivity, such as copper or aluminum, are good conductors of electricity. Resistivity is measured in ohm-meters (Ω⋅m).
The length (L) of a conductor is the distance between its two ends, measured in meters (m). The longer the conductor, the greater its resistance, since the electrons have to travel a longer distance through the material, encountering more atoms and experiencing more collisions.
The cross-sectional area (A) of a conductor is the area of the cross-section of the conductor perpendicular to the direction of the current flow, measured in square meters (m²). The larger the cross-sectional area, the lower the resistance, since the electrons have more room to move through the material and encounter fewer collisions.
By combining these three factors in the resistance formula, we can calculate the resistance of a conductor.
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A 0.675 kg mass is attached to a
spring of spring constant 72.4 N/m,
pulled, and released. What is the
period of the resulting oscillation?
(Unit = s)
Answers
Answer:
T= 0.6 secExplanation:
This problem bothers on the simple harmonic motion of a loaded spring
Given data
mass attached, m= 0-.675 kg
spring constant, k= 72.4 N/m
the period of oscillation can be solved for using the formula bellow
\(T= 2\pi \sqrt{\frac{m}{k} }\)
Substituting the given data into the expression above we have
\(T= 2*3.142\sqrt{\frac{0.675}{72.4} }\\T= 6.284*\sqrt{0.0093 }\\T= 0.6\)
T= 0.6 sec
Answer:
0.607
Explanation:
Trust me
t a coal-burning power plant a steam turbine is operated with a power output of 518 MW. The thermal efficiency of the power plant is 40 % . You may want to review (Pages 633 - 637) Part A At what rate is heat discarded to the environment by this power plant? Express your answer using two significant figures. | ΑΣΦ ? Δ.Ο. At MW Submit Request Answer Part B At what rate must heat be supplied to the power plant by burning coal? Express your answer using two significant figures.
Answers
Part A: To determine the rate at which heat is discarded to the environment by the power plant, we need to calculate the heat input to the power plant and then subtract the useful work output.
Given:
Power output of the steam turbine = 518 MW
Thermal efficiency of the power plant = 40% or 0.40
The thermal efficiency is defined as the ratio of the useful work output to the heat input:
Thermal efficiency = (Useful work output) / (Heat input)
Rearranging the equation, we can solve for the heat input:
Heat input = (Useful work output) / (Thermal efficiency)
Calculations:
Heat input = (518 MW) / (0.40) = 1295 MW
Since the thermal efficiency represents the fraction of the heat input that is converted into useful work, the remaining fraction is the heat discarded to the environment:
Heat discarded = Heat input - Useful work output
Heat discarded = 1295 MW - 518 MW = 777 MW
Therefore, the rate at which heat is discarded to the environment by this power plant is approximately 777 MW.
Part B: To determine the rate at which heat must be supplied to the power plant by burning coal, we use the thermal efficiency and the heat input calculated in Part A.
Heat input = 1295 MW
Therefore, the rate at which heat must be supplied to the power plant by burning coal is approximately 1295 MW.
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Describe how you would find absolute pressure in a car tire if you had a barometer and a tire pump with an air
pressure gauge
Answers
The absolute pressure in a car tire can found by following method:
Pressure is the force per unit area applied toward a course perpendicular to the outer layer of an item. To keep it precise, it is an amount of force following up on a unit area. The SI unit for pressure is measured in Pascals (Pa). Other non-SI units are bar and PSI. There are two types of references to quantify pressure,
Gauge Pressure
Absolute Pressure
The most well-known pressure reference is Gauge Pressure which is connoted by a ‘g’ after the pressure unit, for example, 33 psi g. It is the pressure relative to barometric or atmospheric pressure; it is positive for pressures above atmospheric pressure and negative for pressures that are below atmospheric pressure. An Absolute pressure estimation is one that is alluded to as a perfect or an ideal vacuum. The best illustration of an absolute referenced pressure is the calculation of Barometric pressure. To deliver an absolute pressure sensor, one strategy is for a maker to seal a high vacuum behind the detecting diaphragm.Formula of Absolute pressure is given by:
p(a) = p(g) + p(atm)
Where ,
p(a) is absolute pressure,
p(g) is gauge pressure and
P(atm) is atmospheric pressure
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10 points
You will need to refer to your periodic table to answer this
question.Which of these groups (columns) in the periodic table is made
up primarily of elements that are gases at room temperature?"
Group 1
Group 2
O Group 17
O Group 18
Answers
Answer:Hhvhvhvgvhvh
Explanation:
What does an electromagnet do?
Name five (5) things.
Answers
Answer:
it is used on hard disk drives, speakers, motors, mri machines, and generators
Explanation:
there ya go
Can work output exceed work input?
Yes
No
Answers
an airplane maintains a heading (W20N)at an airspeed of 900 km/h. It is flying through a hurricane with winds of 300 km/h, from the northeast.
a) In which direction is the plane moving relative to the ground?
(B) -what is the ground speed
(C)how long would it take the plane to fly from one city to another 500 km away along the path in (b)
Show working!!
Answers
Answer:
tan x = 60/700
x = 4.9 degree east north
v = √(60^2 + 700^2)
v = 702.6 kph
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How are Neptune and Uranus allke?
Answers
Answer:
The methane gives Neptune the same blue color as Uranus.
Explanation:
Answer:
Uranus and Neptune are the two most distant planets in our solar system
Both are different from the larger gas giants Jupiter and Saturn, and from smaller rocky worlds like Earth
Uranus and Neptune have similar masses and internal compositions
Explanation:
which of the following best describes the image produced by a flat mirror?
Answers
The best description of the image produced by a flat mirror is:"The image formed by a flat mirror is virtual, upright, and laterally inverted."
When an object is placed in front of a flat mirror, the mirror reflects the light rays from the object. The reflected rays appear to originate from behind the mirror, creating a virtual image. The image appears upright, meaning it has the same orientation as the object. However, the image is laterally inverted or reversed from left to right compared to the actual object.
The virtual image formed by a flat mirror has the same size as the object, as there is no magnification involved. The image appears to be located the same distance behind the mirror as the object is in front of it.
It is important to note that the image produced by a flat mirror is not formed by the convergence or divergence of light rays but by their reflection.
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Which describes the image distance I for the image produced by a flat plane mirror?
When does the air parcel stop losing energy?
Answers
Answer:
If there is no cloud (liquid water) in the parcel
Explanation:
Answer:
fjriykckangjcksktkykcjwjtjcsj