Physics, 06.12.2021 02:40, yashddsy7823

010 10.0 points What has the greatest amount of potential
energy?
1. a 0.5 kg book at the top of a 100 m hill
a
2. a 2 kg boulder at the top of a 10 m hill
3. a 5 kg rock raised 5 m off the floor
4. a 2 g penny in an airplane at 1000 m
above the earth

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 05:00, masie03

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Answers: 1

continue

Physics, 22.06.2019 10:10, Fionaauggies

How will the system respond to a temperature increase?

Answers: 1

continue

Physics, 22.06.2019 12:30, tigistamare03

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

Answers: 2

continue

Physics, 22.06.2019 14:20, jeny89

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

Answers: 3

continue

Do you know the correct answer?

010 10.0 points What has the greatest amount of potential
energy?
1. a 0.5 kg book at...