Asinusoidal electromagnetic wave has a peak electric field of 8.00 kv/m. what is the intensity of the wave? (c = 3.0 × 108 m/s, μ0=4π × 10-7 t • m/a, ε0 = 8.85 × 10-12 c2/n • m2)

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

What are the applications of electromagnetic waves