A man pushes a lawn mower on a level lawn with a force of186 N. If 48% of this f

Question

A man pushes a lawn mower on a level lawn with a force of186 N. If 48% of this force is directed downward, how muchwork is done by the man in pushing the mower 5.3 m?
J
If a quantity of gas in a piston cylinder has a volume of0.510 m3 and is initiallyat room temperature (20°C) and is heated in an isobaric(constant-pressure) process, what will be the temperature of thegas in degrees Celsius when it has expanded to a volume of0.693 m3?
°C
A man pushes a lawn mower on a level lawn with a force of186 N. If 48% of this force is directed downward, how muchwork is done by the man in pushing the mower 5.3 m?
J
If a quantity of gas in a piston cylinder has a volume of0.510 m3 and is initiallyat room temperature (20°C) and is heated in an isobaric(constant-pressure) process, what will be the temperature of thegas in degrees Celsius when it has expanded to a volume of0.693 m3?
°C

Explanation / Answer

so 52% of the force is in the direction of motion * work done is .52 * 186 * 5.3 Joules * * * the volume is directly related to the ABSOLUTE (Kelvin)temperature * t / .693 = 293ºK / .510 * ºC = ºK - 273

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