Question

Multiple choice question:
A crane is used to lift loads vertically. The output power of the crane to lift a car is P. The crane then lifts a lorry, which is 3.0 times the car, through 0.25 of the distance in 0.50 of the time. What is the output power of the crane?
a) 3P/8 b) 3P/2 c) 8P/3 d) 6P

Answer 1

Answer:

Which of the following sources are renewable sources of energy? i. Solar energy ii. Wind energy iii. Geothermal energy iii.All of these