I NEED HELP WITH MY PHYSIC HW S HELP PLEASE ASAP
1. A 1206 kg car accelerates at a rate of 1.7 m/s/s over a distance of 62 meters. How much work was done by the engine of the car?
2. How much work is required to lift a 2.3-Newtonâs weigh from 8.6 meters to 36.3 meters above the surface of earth?
3. A 7.3 kg mass falls from rest and increase its speed to 3.2 m/s. How much work was done on the mass by gravity?
PLEASE HELP Thank you!
Answers: 3
Physics, 22.06.2019 05:20
A3.9 g aluminum foil ball with a charge of +4.1Ă10â9 c is suspended on a string in a uniform horizontal eâ field. the string deviates to the right and makes an angle of 30â with the vertical. part a part complete what information about the eâ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of eâ only the direction of eâ both the magnitude and the direction of eâ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
Answers: 3
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 springâmass 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 (âdark absorption linesâ)? explain briefly.
Answers: 3
Physics, 22.06.2019 13:20
Arrange the images in order to show how lake-effect snow occurs.
Answers: 2
Physics, 22.06.2019 18:00
Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?
Answers: 1
I NEED HELP WITH MY PHYSIC HW S HELP PLEASE ASAP
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