What amount of energy in joules is equivalent to 1 kilo watt hour? b. Define 1 joule work done. c. State the law of conservation of energy. d. An object of mass 25 kg is moving with a uniform velocity of 8 m/s. what is the kinetic energy possessed by the object?
Answers
Answered by
1
Answer:
1. 1 Wh = 1 X 3600 J = 3600 J
1 kWh = 1000 Wh = 3600 X 1000 = 3600000 J = 3.6X 10⁶ J
2. One Joule Work is defined as the amount of work done when a force of 1 N displaces a body by 1 m.
3. The law of conservation of energy states that energy can neither be created nor be destroyed. It can be converted from one form to another.
4.
Mass = 25 kg
Velocity = 8m/s
KE = 0.5 X 25 X 8 X 8 J = 800 J
Similar questions