12. In the figure, a block of mass M hangs at rest. The rope that is fastened to the
wall is horizontal and has a tension off 52 N. The rope that is fastened to the
ceiling has a tension of 91 N, and makes an angle theta with the ceiling. What is
the angle theta?
See image.

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves