17. The capacitance of a spherical capacitor with inner radius a and outer radius b is proportional to A. alb
B. ba
c. ba
D. abl(b-a)
E. ab/(b- 1)
The capacitance of a spherical capacitor with inner a and outer radius b is proportional to

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?