Tim has just jumped out of an airplane. The force of gravity pulls him downward, while air resistance pushes him upward. air resistance
625 N
gravity
705 N
What is the net force acting on Tim?
OA
625 newtons upward
OB .
705 newtons downward
OC.
0 newtons
OD
80 newtons downward

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell