Answer:

Explanation:
It says “Momentum before the collision is equal to momentum after the collision.” Elastic Collision formula is applied to calculate the mass or velocity of the elastic bodies.












No waves because Q19 waves would going at the surface at regions
C.half the energy is carried by the electric field and half is carried by the magnetic field.
An Active solar energy system because it uses the sun to heat up the green house an I’m return the plants grow an produce food