Answer:
The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency.
Answer:
The magnitude of minimum potential difference is 1800 V
Explanation:
Given:
Electric field 
Gap between electrodes
m
For finding the minimum potential difference,


V
Therefore, the magnitude of minimum potential difference is 1800 V
Force = mass*acceleration so
3.6*2.5 =9 Newtons
Answer:
0.02 m
Explanation:
R₁ = initial distance jumped by jumper = 7.4 m
R₂ = final distance jumped by jumper = ?
θ₁ = initial angle of jump = 45°
θ₂ = final angle of jump = 42.9°
= speed at which jumper jumps at all time
initial distance jumped is given as

final distance jumped is given as

Dividing final distance by initial distance



distance lost is given as
d = 
d = 7.4 - 7.38
d = 0.02 m
I would say a. Good luck!