How does a centripetal force cause circular motion?
it acts at a right angle to the ob...
How does a centripetal force cause circular motion?
it acts at a right angle to the object’s motion and causes the object to constantly change direction.
it acts at a right angle to the object’s motion and causes the object to constantly change speed.
it acts in the direction of the object’s motion and causes the object to constantly change direction.
it acts in the direction of the object’s motion and causes the object to constantly change speed.
Answers: 2
Physics, 21.06.2019 22:00, Brandon4188
If the speed of a particle triples ,by what factor does its kinetic energy increase?
Answers: 2
Physics, 22.06.2019 06:40, alicemareus
Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm
Answers: 1
Physics, 22.06.2019 07:30, anonymous1813
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.
Answers: 3
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