2. which of the following contains the most atoms? a. k2mno7 b. al2(so4)3 c. c4h4f4cl2 d. hg2(no3)2

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

The strong nuclear force acts over a small distance than the electrostatic force. true or false