We know, Power = Energy / time
Here, P = 750 Watt
t = 60 sec
Substitute their values,
750 = E / 60
E = 750 * 60
E = 45,000 J
In short, Your Answer would be 45,000 Joules
Hope this helps!
Well, first off, mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Light energy is the only form of energy that we can actually see directly. It is formed through chemical, radiation, and mechanical means. Striking a match stick (mechanical energy) creates fire, which has a ton of heat energy, and produces light too, so the answer, is A. I hope i could help!
Answer:
v'=5.97 m/s
Explanation:
If the friction and fluid friction are ignored, then by law of conservation of mechanical energy, potential energy at the top of the slide must be equal to the kinetic energy at the bottom of the slide. Thus, the height of slide and final speed at the bottom of the slide are related as:

let the final speed be v' when h' = 2 h

Answer: option d. gives the percentage of water molecules in the air.
Explanation: