You are determining the mass of an object using a triple beam balance. when the pointer is lined up with the zero mark, the riders show values of 300 grams, 20 grams, and 8.10 grams. what is the mass of the object?
a. 272.10 grams
b. 328.10 grams
c. 439.10 grams
d. 48000 grams

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

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents