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Yes that is an average IQ for a high schooler who is going to college and expects to do well
An answers is impossible because there are no cubic units within a circle but only square units.
Old English hlǣdder; related to Old High German leitara, meaning steps.
Technically, once you know the weight of the box and the height of the platform, you can state the amount of"work" or "energy" needed to raise the box onto the platform. But there's no such thing as the power "needed"to do the job.Power is just the rate of doing work. You can calculate the amount of work needed, but it doesn't matter whetherthe work is done slowly or fast ... with low or high power.
It is rarely, if ever reasonable. If a high level of accuracy is required then a micrometre is better.