Playing catch involves the ball moving in one direction in the air when you exert force. When the ball is in air, there is a gravitational force and a little it of backward air resistance until the other person catches it.
5.6 g/ml. That is the density.
The second law states that the total entropy can never decrese over time for an isolated system
Answer:
A light beam incident on a diffraction grating consists of waves with two different wavelengths. The separation of the two first order lines is great if
the dispersion is great
Gravity is affected by mass and distance
