Answer:
Explanation:
Mass of Earth,
Mass of Moon,
The distance between Earth and the Moon is,
We need to find the force of gravitational attraction between the Earth and the moon. The force of gravity is given by :
So, the required force is .
Alike - both part of the light spectrum, cannot be seen with the naked eye
Different - IR is less energetic than UV, UV has a shorter wavelength than IR
IR - infrared
UV - ultraviolet
They can either cancel each other or add up to a resultant force with a certain direction and modulus.
Newton's second law states that F=m*a, where F is the resultant force, ie ΣF.
The water creates less friction between your foot and the ground
It is by gaining! I just learned this in school. Hope this helps:)