Please help
1. Who was Ptolemy and Copernicus?
2. Describe their ideas about the planets and...
Physics, 03.12.2020 18:40 TPfishing16
Please help
1. Who was Ptolemy and Copernicus?
2. Describe their ideas about the planets and the sun
Answers: 2
Physics, 22.06.2019 04:50, badpotterchris
Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
Answers: 2
Physics, 22.06.2019 22:30, shadowz8813
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
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