Physics, 02.12.2019 23:31 malissa0325
Cart a, with a mass of 0.4 kg, travels on a horizontal air track at 6 m/s and hits cart b, which has a mass of 0.8 kg and is initially at rest. after the collision the carts stick together, and the center of mass of the two cart system has a kinetic energy of
a. 3.5 j b. 7.2 j c. 2.4 j d 1.2 je. 4.8 j
Answers: 1
Physics, 22.06.2019 05:50
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
Answers: 2
Physics, 22.06.2019 22:00
Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
Answers: 1
Physics, 23.06.2019 05:30
Which if these is an etiquette rule? (american football) question 10 options: a. debating with the ref over a call b. not communicating with your team c. post-game handshake d. taunting
Answers: 1
Physics, 23.06.2019 07:30
5. why should the electrons be placed separate from each other (why not together)?
Answers: 2
Cart a, with a mass of 0.4 kg, travels on a horizontal air track at 6 m/s and hits cart b, which has...
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