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Which of the following source of energy is renewable?

Physics

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Let's solve question 12.

The problem asks for the total time interval between dropping a stone and hearing the splash. This involves two parts:

  1. The time it takes for the stone to fall to the water (t1t_1).
  2. The time it takes for the sound of the splash to travel back up to the top of the tower (t2t_2).

The total time interval TT will be the sum of these two times: T=t1+t2T = t_1 + t_2.

Given:

  • Height of the tower, h=400h = 400 m
  • Acceleration due to gravity, g=10g = 10 m/
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