Marc and Rick are pushing on opposite ends of the box shown above. Marc is pushing on the box with a force of 5 N. Rick is also pushing on the box with a force of 5 N. In which direction will the box move? A. The box will move towards Marc because he is pushing with more force. B. The box will move up because the forces will be combined. C. The box will move towards Rick because he is pushing with more force. D. The box will not move because the forces are balanced.

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

Both independent and dependent clauses