A 3.0 nC charge is at x = 0 cm and a = â1.0 nC charge is at x = 4 cm. At what point between the two charges on the x-axis is the electric potential zero?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

If forces acting on an object are unbalanced. true or false