Charge above a conducting plane a positive point charge q ia fixed at the point (0,0,z0) above a grounded conducting plane at z = 0. (a) what is the total charge induced on the plane? (b) determine the radius of the circle centered at the origin in the xy plane which enclose half of the total charge induced on the plane. (c) determine the force on the charge. (d) determine the energy in the electric field. how does this compare with the energy of two charges +q and −q at a separation of 2z0.

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

How are positive ions different from neutral atoms

As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?