subject
Physics, 26.07.2019 02:30 erinleyanne

If you want to lift a 5-kg box to a height of 2 meters, how much wok must be done

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 05:30
Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?
Answers: 1
question
Physics, 22.06.2019 06:30
The mini-refrigerator fire was most likely caused by what type of wiring?
Answers: 2
question
Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
question
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 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
You know the right answer?
If you want to lift a 5-kg box to a height of 2 meters, how much wok must be done...
Questions
question
Arts, 20.11.2020 01:30
question
Mathematics, 20.11.2020 01:30
question
Health, 20.11.2020 01:30
question
Chemistry, 20.11.2020 01:30
question
Mathematics, 20.11.2020 01:30
question
Mathematics, 20.11.2020 01:30
question
Mathematics, 20.11.2020 01:30