An unloaded spring of length 10cm stretches to a length of 12cm when loaded with a 2N weight. Calculate the length of the spring for a load of 8N.

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

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