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nirvana33 [79]
3 years ago
5

A boulder with a mass of 50 kg, sits on a cliff that is 50 m high. The boulder is pushed off of the cliff. How much kinetic ener

gy does the boulder have just before it hits the ground?
Physics
1 answer:
rosijanka [135]3 years ago
8 0
50 +50 =100 Since it’s sitting on a 50m cliff that’s high with a mass of 50 kg it would be adding because once it goes down it’s adding speed
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Answer:

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Nageen's motor power: W_N = F x S / T = F x 0.35 / 1.8 = 0.194F

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5 0
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3. A pendulum with a 1.0-kg weight is set in motion from a position 0.04 m above the lowest point on the path of the weight.
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Answer: K.E = 0.4 J

Explanation:

Given that:

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h = 0.04 m

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K.E = 1 × 9.81 × 0.04

K.E = 0.3924 Joule

The kinetic energy of the pendulum at the lowest point is 0.39 Joule

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3 0
3 years ago
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. A book is moved once around the perimeter of a table of dimensions 2.00 m by 3.00 m. If the book ends up at its initial positi
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Answer:

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A metallic wire has a diameter of 4.12mm. When the current in the wire is 8.00A, the drift velocity is 5.40×10−5m/s.What is the
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Answer:

6.9\times 10^{28}m^{-3}

Explanation:

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We know that

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Using the formula

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By using Area of wire=\pi r^2

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