An 2 Galileo dropped an egg from the top of a random tower. If it fell for 5.2 s seconds, how far did it fall?
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What is the coefficient of kinetic friction μk between the block and the tabletop?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?