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Ksenya-84 [330]
3 years ago
12

Options: Power, energy, time

Physics
2 answers:
horsena [70]3 years ago
4 0

Answer:

power is the rate of time it takes to use a certain amount of energy

Explanation:

i think,, dont take my word for it tho.

sorry if its wrong :'(

photoshop1234 [79]3 years ago
3 0
Power is the rate of time it takes to use a certain amount of energy
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Question 25
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The one with equal forces on both sides, D is your answer

Explanation:

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Answer:

25 m/s in the opposite direction with the ship recoil velocity.

Explanation:

Assume the ship recoil velocity and velocity of the cannon ball aligns. By the law of momentum conservation, the momentum is conserved before and after the shooting. Before the shooting, the total momentum is 0 due to system is at rest. Therefore, the total momentum after the shooting must also be 0:

m_sv_s + m_bv_b = 0

where m_s = 2500 kg, m_b = 25 kg are masses of the ship and ball respectively. v_s = 0.25 m/s, v_b are the velocities of the ship and ball respectively, after the shooting.

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3 years ago
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