How do you represent a force in a free-body diagram?

Arescue plane flying horizontally at spots a survivor in the ocean directly below and releases an emergency kit with a parachute. because of the shape of the parachute, it experiences insignificant horizontal air resistance. if the kit descends with a constant vertical acceleration of, how far away from the survivor will it hit the waves?

Which notation is used to represent an alpha particle? a. b. c. d.

The necleus of an atom is made up of what subatomic particles?