13. Momentum is an object's mass times velocity. Which has more momentum? A paper airplane with a mass of 10g flying at a velocity of 4m/s, or a real airplane that is parked on a runway with a mass of 1000kg and a velocity of 0m/s

Which of the following statements describes an electric generator? A. A magnet is rotated through a coil of wire to produce an electric current. B. Electric potential in a rotating coil of wire creates a permanent magnet. C.

An unknown material has a mass of 0.447 kg, and its temperature increases by 2.87°C when 943 J of heat are added. What is the specific heat of the material? (Unit=J (kg*C))

Two technicians are discussing what could be the cause of slow cranking and excessive current draw. Technician A says that an engine mechanical fault could be the cause. Technician B says that the starter motor could be binding or defective.

11. Which of the following forces is a contact force? * A. Gravity B. Friction C. Magnetism D. Electricity

A neutral metal object is attracted to a nearby charged object, even though the metal object carries no net charge. (A) True (B) False

Two plates with area A are held a distance d apart and have a net charge + Q, and - Q, respectively. Assume that all the charge is uniformly distributed on the inner surfaces of the plates.

A circuit contains two 2,000 resistors connected in parallel. What is the total resistance of the circuit?

5. Consider two glasses, one filled with water and the other half-full, with the water in the two glasses being at the same temperature.

Jason has been spending a great deal of work time talking to his co-workers about how dissatisfied he iswith the job. He also has spent quite a bit of time discussing unionization. In the last week, Jason has arrived atwork intoxicated twice.

X applies a force of 500 N to push Y 100 m across a road how much work does X do?