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scoray [572]
3 years ago
10

Friction is a force that always acts

Physics
1 answer:
insens350 [35]3 years ago
7 0
I’m pretty sure it does most of the time ig
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A 0.40 kg bead slides on a straight frictionless wire with a velocity of 3.50 cm/s to the right. The
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Answer:

Total momentum before collision

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Total momentum after collision

P2 = .6 * V - .4 * .7 = .6 V - .28

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A ball rolls 50 meters in
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The speed of the ball is B. 5 meters per second

Explanation:

For an object in uniform motion (= at constant velocity), the speed can be calculated using the equation

v=\frac{d}{t}

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For the ball in this problem:

d = 50 m is the distance covered

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v=\frac{50}{10}=5 m/s

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3 years ago
Degrees of loudness and softness in music are called.
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In comparing the Ptolemaic system to the Copernican system, neither is entirely correct since Ptolemy said the earth was at the
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3 years ago
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