a motor with an efficiency of 75 percent must supply 240J of useful work. what amount of work must be supplied to the motor

e=75%=0.75 work output = usful work=240j

Explanation:

multiply 2kg by latent heat of vap

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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joke:

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