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ArbitrLikvidat [17]
3 years ago
5

The resistance of a wire depends on

Physics
1 answer:
Orlov [11]3 years ago
6 0

Answer:

b

Explanation:

because all are factors that determine the resistivity of a material

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A 1.3-kg ball is attached to the end of a 0.8-m string to form a pendulum. This pendulum is released from rest with the string h
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Answer:

2.9 m/s

Explanation:

Momentum will be conserved

Speed of the ball just before collision is

v = √2gh = √(2(9.8)(0.8)) = 3.96 m/s

The initial momentum is 1.3(3.96) = 5.15 kg•m/s

The block takes away momentum of 0.6(2.2) = 1.32 kg•m/s

Leaving the ball with momentum of 5.15 - 1.32 = 3.83 kg•m/s

vf(ball) = 3.83 / 1.3 = 2.946... ≈ 2.9 m/s

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How does a seat belt stop your body from moving in a forward motion in a car?
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D, when a moving car suddenly stops, your body is still moving forward until the seatbelt stops you.

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What do you meant by varnier constant?
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the ratio of the smallest division of main scale to the number of divisions of the vernier scale.

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Brandy has built a computer model of a weather system. She has included information about bodies of water, the Sun, and the atmo
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