How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m?
How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m? How much power must the motor supply to do this in 50 s at constant speed?
How long after the first diamond begins to fall will the two diamonds be 24 m apart?
Two diamonds begin a free fall from rest from the same height, 1.9 s apart. How long after the first diamond begins to fall will the two diamonds be 24 m apart?
What percentage of its gravitational potential energy does a squash ball lose if it falls from 3.0 m?
What percentage of its gravitational potential energy does a squash ball lose if it falls from 3.0 m and returns to a height of 0.76 m after bouncing once?
How can I earn money now so that when I have to drive myself, I can have a car?
I will be the first, and only kid in my family to get a license at 16. Yay! [I'm the youngest, everyone else is already 18+] I am getting my license at 16 because I will have to drive to school [I will have to go to a High school campus once a week and a college campus twice a week]. I will need a car as soon as I get my license. I am 13 now [almost 14]. I tutor for 50 an hour, but I only have about 3 clients that I see 1-2 times a week. With my other expenses [primarily my pets] I am not left Read more [...]
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