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strojnjashka [21]
3 years ago
13

A bicycle has a momentum of 12 kgm/s. What momentum would the bicycle have if it had: a) half the mass and twice the speed

Physics
1 answer:
MatroZZZ [7]3 years ago
3 0
A bicycle has a momentum of 12 kgm/s. What momentum would the bicycle have if it had <span>three times the mass and twice the speed.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
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A box falls out of a stationary helicopter hovering 135 m above the ground. How long will it take to hit the ground?
Marrrta [24]

We have the equation of motion s = ut + \frac{1}{2} at^2, where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.

Here displacement = 135 m, Initial velocity = 0 m/s, acceleration = 9.81 m/s^2

Substituting

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A box falls out of a stationary helicopter hovering 135 m above the ground will take 5.25 seconds to reach the ground.

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3 years ago
Heat is added to an open pan of water at 100.0°c, vaporizing the water. the expanding steam that results does 43.0 kj of work, a
vampirchik [111]
Heat = change in internal energy + Work done The internal energy of a system = heat added and mechanical work done by the system, i.e. U = Q + W rearranging the formula above, will give us: Q = deltaU + W 
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