The formula is P = E/t, where P means power in watts, E means energy j , and t means time in seconds. This formula states that power is the consumption of energy per unit of time.
P = 15 M / 10*60
M = mega = 10⁶
15 *10⁶ / 600
= 25000 watt
So picture below to see answer and explanation.
Before a star is born, the matter that will become the star exists as a interstelar gas and dust. The stars are formed as a result of the forces:the force of gravity compresses atoms in the interstellar gas. Then the fusion reaction begins. During this fusion reaction the temperature gets extremely high and all the material evolves into a hot bright star.
Answer:
The height of the hill is 29.3 cm.
Explanation:
Given that,
The combined mass of a child and sled, m = 57 kg
Initial speed of the sled, u = 0
Speed at the bottom of the sled, v = 2.4 m/s
We need to find the height of the hill. The energy at the bottom and the top will remains the same due to the law of conservation of energy. So,

So, the height of the hill is 29.3 cm. Hence, this is the required solution.