An object moves 450km in 9 mintes what is its speed

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

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than