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disa [49]
3 years ago
8

When ____________________ equals the force of gravity on a falling object, the object reaches terminal velocity.

Physics
1 answer:
Lilit [14]3 years ago
5 0

The correct answer to the question is : Air resistance.

EXPLANATION:

Before coming into any conclusion, first we have to understand the terminal velocity.

An object is said to be moving with terminal velocity if the net force acting on the object is zero i.e the body is non accelerating.

As per the question, the object is falling under gravity. The force of gravity acts in vertical downward direction.

Except gravity, the object is also under air resistance. It is the force which opposes the motion of the object, and acts in vertical upward direction.

If the air resistance becomes equal to force of gravity, then the net force acting on the object is zero . It is so because two forces act in opposite direction.

In case of liquids, the resistance force is called as viscosity.

Hence, the correct answer to the question is air resistance.



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Radiation emitted from human skin reaches its peak at λ = 960 µm. what is the frequency of this radiation? planck's constant is
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1) The wavelength of the radiation emitted by the human skin is
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f= \frac{3 \cdot 10^8 m/s}{960 \cdot 10^{-6}m}=3.13 \cdot 10^{11} Hz

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Which of the following statements is true?
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2. The hydrogen atom has quantized energy levels.

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That latest value for the Angle is in Grads, not in Kilograms.

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Apply law of conservation of momentum along the horizontal direction

m_1u_1=m_1v_1cos\theta_1+m_2v_2cos\theta_2

u_1=v_1(cos\theta_1+1.376cos\theta_2)

u_1=v_1(cos(54)+1.376cos(36))

u_1=(1.7) v_1

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The second ball velocity is v_2 = (1.376)(1.84)=2.531m/s

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m(v_1+v_2)=(1.37)(2.531+1.84)=5.98kgm/s

The magnitude of final energy is

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