Engine I takes in 100 J of heat from a hot reservoir and does 20 J of work. Engine 2 takes in the same amount of
heat from the hot reservoir and does 25 J of work. Is the
efficiency of engine 1 greater than, less than or equal to
the efficiency of engine 2? Explain.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

What property of a wave determines the pitch? what property of a wave determines the volume? describe your reasoning and include the ways the simulation and tone generator influenced your thinking.will mark brainiest if your answer does make sense to the question asked.

Aboat travels at 15 m/s in a direction 45° east of north. the boat then turns and travels at 18 m/s in a direction 5° north of east. what is the magnitude of the boat's resultant velocity? round your answer to the nearest whole number. /s what is the direction of the boat's resultant velocity? round your answer to the nearest whole degree. ° north of east