# Science

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## Similar Questions

1. ### Science

A wagon was used to move a 90 lb rock 120yds. It took 40 sec and 70 lbs of force to do this. Find horsepower and efficiency
2. ### Physics

A wagon was used to move a 90 lb rock 120 yds. It took 40 sec and 70 lbs of force. Can someone help me solve for efficiency and horsepower?

with the following problem: A wagon was used to move a 90 lb rock 120 yds. It took 40 seconds and 70 lbs of force. Find Horsepower and Efficiency % THANKS.
4. ### Science

Could the horsepower devloped by a slower moving student ever be greater than the horsepower developed by a faster moving student?
5. ### Math/Science

Can someone please give an example of how i can use this formula in a word problem... Percent efficiency= Work out (J) _____________ x100 Work in (J)
6. ### science

do you think all horses output exactly 1 horsepower and why ...please...help...me:(
7. ### science

do you think all horses output exactly 1 horsepower and why ...please...help...me:( :(
8. ### science

A 750w motor might also be rated as a 0.5horsepower motor 1 horsepower motor 2 horsepower motor 10 horsepower motor
9. ### Maths please someone help me out!!!

3. The efficiency of an industrial pump decreases by a fixed percentage each year. The percentage decrease each year is with respect to the efficiency of the pump at the start of each year. Over each four year period, the efficiency …
10. ### electrical energy and power

determine the overall efficiency of a motor that deliveries 2 horsepower to a load if it draws 7.5 amperes when connected to a 240 volt supply.

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