I would say friction because it requires to surfaces in order for the force to take place
correct me if I'm wrong.
Answer:
Three, the liquid in the man's cup, the stove is solid, and the air around them is a gas
Explanation:
Answer:
117.72kW
Explanation:
Given data
Mass m= 50kg
height x = 2m
time taken = 2 minutes= 129 seconds
let us find the work done
WD= force * distance
WD= mgx
WD= 50*9.81*2
WD= 981 Joules
Let us find the power
Power= work * time
Power= 981*120
Power= 117720
Power= 117.72 kW
Hence the power spent is 117.72kW
B.
technically it would depend if the resistors were in series or parallel but B is the answer.