shape of a thermometer is made prismatic why?

The axial line refers to an imaginary line or axis that runs through the center of an object and is used to describe its geometry and rotational motion.

In the context of a short dipole, the axial line represents the line passing through the dipole's positive and negative charges.

When considering the force on a short dipole along the axial line, we can use the formula F = p(2a) / r³, where F represents the force, p is the dipole moment, a is the length of the dipole, and r is the distance between the dipole and the point where the force is measured.

In this specific case, since the length of the dipole (a) is given as zero, the formula simplifies to F = p / r³. By substituting the provided values, such as the dipole moment of 0.2 × 10^-20 cm and the distance of 10 cm, we can calculate the force:

F = 0.2 × 10^-20 / (0.1)^3

F = 5.75 × 10^-27 N

Therefore, the force experienced by the particle placed along the axial line, at a distance of 10 cm from the center of the short dipole with a moment of 0.2 × 10^-20 cm, is determined to be 5.75 × 10^-27 N. Thus, the correct option is 1) 5.75 × 10^-27 N.

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The concrete will seem much warmer because of how it holds and radiates heat when the female has one foot in the grass and one foot on it. The reason for this is difference in specific heat.

The concrete will seem much warmer because of how it holds and radiates heat when the female has one foot in the grass and one foot on it. Concrete absorbs heat more rapidly and easily than grass because it is porous and a good conductor of heat. Grass will stay cooler because it has a higher insulation value, which traps heat and prevents it from transferring as quickly. The dense, paved surfaces like concrete and asphalt absorb more heat from the sun than natural surfaces like grass or dirt, leading to the phenomenon known as the urban heat island effect. As a result, on a hot summer day, the concrete will seem much warmer than the grass.

Also known as specific heat, this is the quantity of energy required to increase a substance's temperature by one degree Celsius in one gram. The units of specific heat are typically calories or joules per gram per degree Celsius. As an illustration, the specific heat of water is 1 calorie (4.186 joules) per gram per degree Celsius. Joseph Black, a Scottish scientist, discovered that equivalent masses of various substances required different amounts of heat to elevate them over the same temperature range, which led him to establish the concept of specific heat.

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On sunny day, sand on beach is hot, but water is still cool even though the same energy has been applied to both. Property of water this demonstrate is : high specific heat.

Water has highest specific heat capacity. Water also feels cool because water has a higher specific heat than sand. Despite the water receiving same amount of energy in the same amount of time as the sand, water needs more energy to change one gram of the water to one degree Celsius.

Amount of heat energy required to increase temperature of a unit of given substance by 1°C is called Specific heat capacity.

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Answer:

1 : 2 (30 : 60)

Explanation:

The rate of increase of the Earth's gravity field at latitudes 30° and 60° are in the ratio 1 : 2 because 30 : 60 simplified is 1 : 2.

If the answer does not ask for the ratio to be simplified leave its as 30 : 60.

The wavelength of the sound with speed 330m/s and vibrates 660 times a second is 0.5 m.

v = velocity or speed of the sound = 330m/s

Wavelength of the sound can be calculated using this formula,

Wavelength (λ) = speed (v) / frequency (f)

Frequency is the measurement for how many wave vibrates in a second. The questions tell us the sound can be vibrates 660 times a second in Cuthbert ear, so this mean the frequency of the sound is 660 Hz.

So,

λ = v / f

λ = 330 / 660

λ = 0.5 m

Thus, the wavelength of the sound is 0.5 m.

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(A) For the system consisting of the two blocks, the change in the kinetic energy of the system is equal to work done by gravity on the system.

(D) For the system consisting of the two blocks, the pulley and the Earth, the change in the total mechanical energy of the system is zero.

The total initial mechanical energy of the two block system is calculated as follows;

\(m_1gh_1 + \frac{1}{2} m_1v_1_i^2 = m_2gh_2 + \frac{1}{2} m_2v_2_i^2\\\\m_1gh_1 + 0 = m_2gh_2 + 0\\\\m_1gh_1 = m_2gh_2\\\\m_1gh_1 - m_2gh_2 = 0\)

When the block m2 reaches the ground the block m1 attains maximum height and the total mechanical energy at this point is given as;

\(m_1g(h_1 + h_2) + K.E_1 = \frac{1}{2}m_2v_{max}^2 + P.E_2\\\\m_1g(h_1 + h_2 ) -PE_2 = \frac{1}{2}m_2v_{max}^2 - K.E_1\\\\m_1g(h_1 + h_2 ) - 0= \frac{1}{2}m_2v_{max}^2 - 0\\\\m_1g(h_1 + h_2 ) = \frac{1}{2}m_2v_{max}^2\\\\W = \frac{1}{2}m_2v_{max}^2\)

Thus, we can conclude the following before the block m2 reaches the ground;

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Answer:

Explanation:

What???

Answer:

True

Explanation:

because if your body image is negative your holistic health is will affect

Answer:

Explanation:

Work = Force times displacement. Therefore,

W = 3150(75.5) so

W = 238000 N*m

The time taken for the athlete to finish the race is 20 s (Option A)

Power is simply defined as the rate at which work is done. It can be expressed mathematically as

Power (P) = work (W) / time (t)

But

Work = weight × distance

Therefore,

Power = (weight × distance ) / time

Power = (weight × distance ) / time

5400 = (539 × 200) / t

5400 = 107800 / t

Cross multiply

5400 × t = 107800

Divide both side by 5400

t = 107800 / 5400

t = 20 s

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Answer:

Darren Bornstop (real name is Darren Campbell)

The three essential diagnostic features of anorexia nervosa, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are:

It is important to note that these diagnostic features must be present and significantly impair the individual's functioning in order to meet the criteria for anorexia nervosa. Additionally, there may be other associated features and behaviors,

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Answer:

(a) - P = 29870.4 Pa

(b) - w = 78498 N

Explanation:

(a) - To find the pressure on the bottom of a cylindrical water tank, we can use the formula for hydrostatic pressure:

P = ρgh

Where...

Substitute our values into the formula:

=> P = (1000)(9.8)(3.048)

∴ P = 29870.4 Pa

(b) - To determine the total weight of water contained when the tank is full, we can compute the volume of the tank and then multiply it by the density of water.

Volume of a cylinder is: V = πr²h

Where...

=> V = π(3)²(10)

=> V = 90π ≈ 282.7 ft³

Since one cubic foot equals approximately 0.0283 m³, we have:

V = 8.01 m³

Finding the mass:

mass = volume * density

=> mass = (8.01)(1000)

∴ mass = 8010 kg

Lastly, finding the weight:

weight = mass * gravity

=> weight = (8010)(9.8)

∴ weight = 78498 N

Answer:

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Ideally, the device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.”

Explanation:

a person can pull approximately 60% of their own weight horizontally along the ground in good conditions. So if we need a 500 lb pull to get something done and we have a single groundman who weighs 200 lb and can therefore generate around 120 lb of pull, how can we accomplish this 500 lb pull? The simple answer is that the groundman can go find 4 or 5 good friends who are willing to drop everything and come and help him pull on the rope.

Answer:

80.08 km/h

Explanation:

Given that Black Panther ran 567.6 km to the east in 23 hours

Velocity = distance covered/time

Substitute the distance covered and time into the formula

Velocity = 567.6/23

Velocity = 24.68 km/h

then turned around and ran 221.8 km to the west in 1.2 hours.

Velocity = 221.8/1.2

Velocity = 184.83 km/h

What was his average velocity during the trip in km/h ?

Average velocity = (V + U)/2

Since the two velocity are opposite to each other, the average velocity will be:

Average velocity = (-24.68 + 184.83)/2

Average velocity = 160.15/2

Average velocity = 80.08 km/h

Therefore, his average velocity during the trip is 80.08 km/h

To calculate the distance Mom will travel, we can use the formula: Distance = Speed × Time. In this case, Mom drives at an average speed of 55 mph for 25 hours.

First, we need to convert the speed to the consistent unit of miles per hour. Since the speed is already given in mph, no conversion is necessary.

Next, we multiply the speed (55 mph) by the time (25 hours) to find the distance traveled.

Distance = 55 mph × 25 hours = 1375 miles.

Therefore, Mom will travel a distance of 1375 miles. This means that if she maintains an average speed of 55 mph for a continuous 25-hour period, she will cover a distance of 1375 miles. It's important to note that this calculation assumes a constant speed throughout the entire journey.

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Answer:

3,510 po yung sagot pa brainliest po

Explanation:

By adding the distances for cycling, running, and swimming, the total race distance can be determined. The distance covered by him is 13.5 km.

Converting all the distances to the same unit before combining them because the triathlete swims 500 meters, runs 3000 meters, and cycles 10.0 kilometers.

Divide 500 meters by 1000 to get kilometers: 500 meters divided by 1000 equals 0.5 kilometers.

Divide 3000 meters by 1000 to get 3 kilometers: 3000 meters divided by 1000.

The triathlete completes a 0.5-kilometer swim, a 3-kilometer run, and a 10.0-kilometer bike ride.

Now that the distances have been added, the total is 13.5 kilometers: 0.5 kilometers for swimming, 3 kilometers for running, and 10.0 kilometers for cycling.

Consequently, the race's overall length is 13.5 kilometers.

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Answer:

Explanation:

Work done on the lever ( input energy ) = force applied x input distance

= 24 N x 2m = 48 J

Work done by the lever ( output energy ) = load x output distance

= 72 N x 0.5m = 36 J

efficiency = output energy / input energy

= 36 J  / 48 J

= 3 / 4 = .75

In percentage terms efficiency = 75 % .

Answer:

1. The idea of discrete, indivisible particles within atoms.

2. Millikan's findings contributed to the development of the modern atomic theory.

3. The experiment measured the charge of an electron

Explanation:

Robert Millikan's well-known oil-drop experiment, carried out in 1909, had a fundamental impact on our knowledge of the atom. The first concrete experimental proof of an electron's existence was provided by this experiment, which measured the charge of an electron. By carefully measuring the motion of charged oil droplets, Millikan was able to determine the charge of the electrons by calculating their charge-to-mass ratio.

This ground-breaking effort contributed to the advancement of contemporary atomic theory and helped create the fundamental unit of electric charge. Critical understandings of the composition and characteristics of matter were gained through Millikan's discoveries, which supported the notion that atoms contained separate, indivisible components.

Answer:

Explanation:

The direction of the applied force has to be parallel to the distance an object moved in order to say that work has been done.

The momentum in a collision is conserved. From this,  the final velocity of the coupled mass is 2.5 m/s. The final velocity of the 8 kg mass will be 3.1 m/s in the elastic collision.

In elastic collision, the total kinetic energy of the system is conserved. Hence, the initial kinetic energy of the colliding system is equal to the sum of their final kinetic energy.

Given  m1 = 3 kg

u1 = 4 m/s

m2 = 8 kg

u2 = 2 m/s

v be the final velocity of the coupled mass.

then, m1 u1 + m2 u2 = (m1  + m2) v

(3 kg × 4 m/s) + (8kg × 2 m/s) = (8 kg + 3 kg)v

v = 2.5 m/s

If the blocks are moving in opposite direction after collision, then the velocity of 8 kg mass is calculated as follows:

(3 kg × 4 m/s) + (8kg × 2 m/s) = (3kg × 1 m/s) + (8 kg × v2)

28 kg m/s - 3 kg m/s = 8 v2

v2 = 3.1 m/s.

The change in kinetic energy for the in elastic collision is given as:

ΔKe = m1(u1)² + m2(u2)² -  (m1 + m2)v²

       = (3 kg ×16 m²/s²) + (8 kg× 4 m²/s²) - (8 kg + 3 kg)6.25  m²/s²

       = 11.25 J.

Therefore, the kinetic energy lost in the inelastic collision is 11.25 J.

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The average speed of the boomerang during the time interval from 2 seconds to 3 seconds after it was thrown is 1.80 ft/s.

To find the average speed of the boomerang during the time interval from 2 seconds to 3 seconds, we need to calculate the total distance traveled by the boomerang during that time and divide it by the time taken.

The distance traveled by the boomerang can be found by integrating the absolute value of the velocity function over the given time interval.

The velocity function can be obtained by taking the derivative of the height function:

\(\[v(t) = \frac{dh}{dt} = \frac{d}{dt}(-0.63t^2 + 3.9t + 5)\\\\= -1.26t + 3.9\]\)

Next, we need to calculate the definite integral of the absolute value of the velocity function over the interval [2, 3]:

\(\[d = \int_{2}^{3} |v(t)| dt\]\\\\\d = \int_{2}^{3} |-1.26t + 3.9| dt\]\)

To evaluate this integral, we need to split it into two cases based on the sign of (-1.26t + 3.9):

Case 1: When -1.26t + 3.9 ≥ 0

In this case, the absolute value can be removed:

\(\[d_1 = \int_{2}^{3} (-1.26t + 3.9) dt\]\\\\\d_1 = \left[-\frac{1.26}{2}t^2 + 3.9t\right]_{2}^{3}\]\\\\\d_1 = \left[-0.63t^2 + 3.9t\right]_{2}^{3}\]\\\\\d_1 = -0.63(3^2) + 3.9(3) - (-0.63(2^2) + 3.9(2))\]\\\\\d_1 = -0.63(9) + 3.9(3) - (-0.63(4) + 3.9(2))\]\\\\\d_1 = -5.67 + 11.7 - (-2.52 + 7.8)\]\\\\\d_1 = -5.67 + 11.7 + 2.52 - 7.8\]\\\\\d_1 = 1.05\]\)

Case 2: When -1.26t + 3.9 < 0

In this case, we need to negate the integrand before integrating:

\(\[d_2 = \int_{2}^{3} -( -1.26t + 3.9) dt\]\\\\\d_2 = \left[\frac{1.26}{2}t^2 - 3.9t\right]_{2}^{3}\]\\\\\d_2 = \left[0.63t^2 - 3.9t\right]_{2}^{3}\]\\\\\d_2 = 0.63(3^2) - 3.9(3) - (0.63(2^2) - 3.9(2))\]\\\\\d_2 = 0.63(9) - 3.9(3) - (0.63(4) - 3.9(2))\]\\\\\d_2 = 5.67 - 11.7 - (2.52 - 7.8)\]\\\\\d_2 = 5.67 - 11.7 - 2.52 + 7.8\]\\\\\d_2 = -0.75\]\)

Since the boomerang moves in both positive and negative directions, we take the absolute value of the sum of the distances:

\(\[d = |d_1| + |d_2| = 1.05 + 0.75 = 1.80\]\)

Finally, we calculate the average speed:

\(\[\text{Average Speed} = \frac{\text{Total Distance}}{\text{Time Taken}} \\\\= \frac{1.80}{3-2} \\\\= 1.80 \, \text{ft/s}\]\)

Therefore, the average speed of the boomerang during the time interval from 2 seconds to 3 seconds after it was thrown is 1.80 ft/s.

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Answer:

We observe a volcano erupting lava. We can feel the ground tremble during the eruptions. We conclude that deep under the surface of the earth there are forces that produce considerable movement resulting heat and pressure we see.

Explanation:

Got it right on the quiz

Answer: Longitudinal waves

Explanation: For a sound wave traveling through air, the vibrations of the particles are best described as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport

Scientists learn about the age of the solar system and its planetary bodies through radiometric dating and the analysis of lunar and meteorite samples.

Radiometric dating is a reliable method used by scientists to determine the age of rocks and minerals. It involves measuring the decay of radioactive isotopes within these materials to calculate their age. By analyzing the isotopic ratios and composition of lunar and meteorite samples, scientists can gain insights into the age of these materials and, by extension, the solar system. Lunar samples collected from the Moon's surface during space missions and meteorites that have fallen to Earth provide valuable information about the formation and evolution of the solar system. By combining radiometric dating with the analysis of these samples, scientists can piece together the timeline of events that shaped our solar system.

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Answer:

Weight of girl is 216 N on mars and mass of girl remains same because mass is independent of gravity

Explanation:

Mass of girl = 60 kg

Accelaration or gravity = 3.6 m/s^2

So the formula for weight is

    W=mg  

       W=60 . 3.6

         W = 216  Kgm/s^2   or  216 N

Whenever the net force on an object is zero, its acceleration is also zero.

When a body is at rest, force, which might take the form of pushes or pulls, tries to or really does induce motion.

Newton's second law of motion, expressed in driven form, says that

F=m.a.

Where F is force,

m is mass, and

a is acceleration.

When F is Zero, then m.a = zero

If there is no acceleration, the body will continue to move at its previous speed.

This speed could be zero or any other value.

The body is at rest at zero speed. That being said, it does not imply that the item should be at rest.

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If a particle moves along a straight line, if the velocity of the particle v = 2t², then the acceleration versus time graph will be a straight line, therefore the correct answer is option C,

The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².

As we know the rate of change of velocity is known as acceleration

acceleration =change in velocity/change in time

As given in the problem If a particle moves along a straight line, if the velocity of the particle v = 2t²,

acceleration = dv/dt

                     =d ( 2t²)/dt

                     =4t

Thus, the acceleration versus time graph would be a straight line.

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The measurement of electrical pressure is voltage, and the symbol for voltage in Ohm's Law is "V."

Ohm's Law states that the voltage (V) across a conductor is equal to the product of the current (I) flowing through the conductor and the resistance (R) of the conductor:

V = I * R

In this equation, "V" represents the voltage in volts, "I" represents the current in amperes, and "R" represents the resistance in ohms.

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