A charge q is placed at the centre of the shell what is the

A spherical conducting shell of inner radius r1 and outer radius r2 has a charge Q.

(a) A charge q is placed at the centre of the shell. What is the surface charge density on the inner and outer surfaces of the shell?

(b) Is the electric field inside a cavity (with no charge) zero, even if the shell is not spherical, but has any irregular shape? Explain.

How much fuel would it take to provide this much energy if : a spaceship of mass 2.05 x 106 kg is to be accelerated to a speed of 0.720c.a what minimum amount of energy does this

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A fair coin is tossed three times let x be the number of : a fair coin is tossed three times. let x be the number of heads that turn up on the first two tosses and y be the

A charge q is placed at the centre of the shell what is the : a spherical conducting shell of inner radius r1 and outer radius r2 has a charge q.a a charge q is placed at the centre

Determine the torque on the shaft when it rotates at 15 rpm : fluid mechanics problem a triangular shaped cylinder is enclosed in a container of oil and rotates at an angular

Trevor price bought 10-year bonds issued by harvest foods : trevor price bought 10-year bonds issued by harvest foods five years ago for 952.66. the bonds make semiannual coupon

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A 600 pf capacitor is charged by a 200 v supply it is then : a 600 pf capacitor is charged by a 200 v supply. it is then disconnected from the supply and is connected to another