Physics, 30.10.2019 00:31, ijinaeiaujah8165
Arailroad car of mass 3.45 β 104 kg moving at 2.60 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) what is the speed of the three coupled cars after the collision? 1.27 incorrect: your answer is incorrect. m/s (b) how much kinetic energy is lost in the collision?
Answers: 3
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
Physics, 23.06.2019 00:00, isabella4141
Which is an advantage of subdividing science into different areas?
Answers: 3
Arailroad car of mass 3.45 β 104 kg moving at 2.60 m/s collides and couples with two coupled railroa...
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