Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99x10³0 kg
Mass of the Earth = 5.98x10²4kg
The average distance between the Earth
and the Sun = 1.5x10¹¹ m.

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

How many atoms of nitrogen are in the chemical formula ni(w on

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is