Answer:
work done is -150 kJ
Explanation:
given data
volume v1 = 2 m³
pressure p1 = 100 kPa
pressure p2 = 200 kPa
internal energy = 10 kJ
heat is transferred = 150 kJ
solution
we know from 1st law of thermodynamic is
Q = du +W ............1
put here value and we get
-140 = 10 + W
W = -150 kJ
as here work done is -ve so we can say work is being done on system
Mechanical energy is the sum of kinetic energy and potential energy
It would be 1. B 2. A 3. A
initial momentum of 2 kg blob is given as
here we have
initial momentum of 3 kg blob is given as
here we have
So initially 2 kg Blob has most momentum before they collide
<span>Using Coulomb's law: k*(-0.3)*(-0.3)/(d^2)=19.2
D is the distance between the two negative charges</span>
