By definition, the gain in PE (potential energy) is
ΔPE = m*g*h
Given:
mg = 40 N (Note that m*g = weight)
h = 5 m
ΔPE = (40 N)*(5 m) =200 J
Answer: 200 J
Answer:
- 1.5m2
Explanation:
P=F/A. So here the force is given and the pressure is also given so you make the area the subject since that is what u are looking for
Answer:
(a) Initial volume will be 7.62 L
(b) Final temperature will be 303.85 K
Explanation:
We have given one mole of ideal gas done 3000 J
So work done W = 3000 J
Let initial volume is
and initial pressure
( As pressure is constant )
Final volume
= 0.025 
Number of moles n = 1
(B) From ideal gas of equation we know that 
So 
T = 303.85 Kelvin
(B) For isothermal process work done is equal to





So initial volume will be 7.62 L
EM stands for ElectroMagnetic.