A 64.0-kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.850 m around the pole. (a) Determine the magnitude of the force exerted by the horizontal rope on her arms. 1.13 kN (b) Compare this force with her weight. Frope W
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Physics, 22.06.2019 01:20
Your target variable is Ī“f, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for Ī“f in terms of the relevant frequencies using the subscript notation introduced above.
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Physics, 22.06.2019 07:30
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 springāmass 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 (ādark absorption linesā)? explain briefly.
Answers: 3
Physics, 22.06.2019 11:00
If angle "a" is 25Ā°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c
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A 64.0-kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end...
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