Oil costs $1.24 per gallon and is rated at 130,000 btu per gallon. the boiler efficiency is assumed to be 75 percent. the steam required is 20 pounds per hour per ton of refrigeration produced, and the heat required to evaporate water is 950 btu per pound. assume the electrical requirements to be 0.03 kw per ton and the cost to be $0.06 per kwh. what is the operating cost in dollars per ton per hour due to electricity usage?

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.

the answer you are looking for is d. there are no holes for blood to enter or leave the system. your welcome