Physics, 01.02.2021 21:20, serenityarts123
A student must determine the effect of friction on the mechanical energy of a small block as it slides up a ramp. The block is launched with an initial speed vo from point A along a horizontal surface of negligible friction. It then slides up a ramp, where fnction is not negligible, that is inclined at angle 0 with respect to the horizontal, as shown in the figure. The student measures the maximum vertical height h attained by the block while on the ramp, labeled as point B in the figure. At point B, the block comes to rest. The student performs three trials with the ramp at different angles, launching the block at the same initial speed vo for each trial. The results from the trials are displayed in the table, How should the student use the data collected and the known quantities from the experiment 19 determine the initial total mechanical energy of the block-ramp-Earth system for all trials in the experiment?
Answers: 1
Physics, 22.06.2019 11:30, lifeofabe214
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
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
Physics, 22.06.2019 19:30, starswarsfan
In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.
Answers: 1
A student must determine the effect of friction on the mechanical energy of a small block as it slid...
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