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yKpoI14uk [10]
3 years ago
13

The force that gravity exerts on an object is called _____. weight volume density mass

Physics
2 answers:
uysha [10]3 years ago
8 0

Answer:

Weight

Explanation:

tensa zangetsu [6.8K]3 years ago
3 0

Answer: The correct answer is "weight".

Explanation:

The expression for the weight is as follows;

w= mg

Here, m is the mass of the object, g is the acceleration due to gravity and w is the weight.

Weight: It is the force which is exerted by the gravity on an object. It varies place to place.

The weight of the object depends on mass and acceleration due to gravity.

The weight of the object on the moon is one sixth of the weight of the object on the earth whereas the mass of the object remains constant.

Density is defined as the mass per unit volume.

Therefore, the force that gravity exerts on an object is called weight.

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Temperature can change the state from solid to liquid causing it to melting, liquid to gas causing vaporization or a solid to a gas causing sublimation. Pressure alone cannot change the state of matter.
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What happens to the temperature of a substance while it is changing state?
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It stays constant, because it's using that energy to change state
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Acceleration is always act in the direction of​
hjlf

Answer:

Acceleration acts always in the direction. Of the displacement. Of the initial velocity.

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3 years ago
A 123-turn circular coil of radius 2.41 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coi
klasskru [66]

Answer:

67.44 V

Explanation:

Number of turns N =123

Radius = 2.41 cm =0.0241 m

The magnetic field strength increases from 50.9 T to 96.3 T so change in magnetic field dB = 96.3-50.9=45.4 T

Time interval dt = 0.151 sec

We know that the induced emf e=-NA\frac{dB}{dt}

Area A=\pi r^2=3.14\times 0.0241^2=1.8237\times 10^{-3}m^2

Putting all these values in emf equation e=-123\times 1.8237\times 10^{-3}\times \frac{45.4}{0.151}=-67.44\ V here negative sign indicates that it opposes the cause due to which it is produced

8 0
4 years ago
Four objects are situated along the y axis as follows: a 1.93-kg object is at +2.91 m, a 2.95-kg object is at +2.43 m, a 2.41-kg
Anna [14]

Answer:

0.958 m

Explanation:

So the total mass of the system is

M = 1.93 + 2.95 + 2.41 + 3.99 = 11.28  kg

let y be the distance from the center of mass to the origin. With the reference to the origin then we have the following equation

My = m_1y_1 + m_2y_2 +m_3y_3 + m_4y_4

11.28y = 1.93*2.91 + 2.95*2.43 + 2.41*0 + 3.99*(-0.496) = 10.806

y = \frac{10.806}{11.28} = 0.958 m

So the center of mass is 0.958 m from the origin

3 0
3 years ago
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