The athlete on the left is doing pushups on the floor. Describe the force reacting to the red arrow showing the arms applying a force facing down.(state the direction and what is exerting the reaction force)

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Describe uniform velocity and variable velocity in short

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?