How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill?
options:
a) it is lost.
b) it increases.
c) it remains the same.
d) it is stored in the bicycle rider.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Can anybody me with this? ? (picture included.)