Physics, 15.10.2019 04:20 lolfunny124
Arock is being twirled in a circle on the end of a string. the string provides the centripetal force needed to keep the ball moving in a circle. does the force of tension exerted by the string on the rock do work on the ball in this situation? explain.
Answers: 2
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Arock is being twirled in a circle on the end of a string. the string provides the centripetal force...
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