Your class decides to build a circuit to make a light bulb shine. when you are finished, you have a setup with wires, a light bulb and a battery. what role does the battery play in this circuit design? a) the battery works as the system's wires. b) the battery is the electrical power supply. c) the battery is the circuit's main conductor. d) the battery works as the system's electrical switch.

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Asher cycles 12 miles in 16 hours. what is his speed?