Answers: 2
Physics, 21.06.2019 23:30
In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door
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Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32ร10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^โ1 mol^โ1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022ร10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
Physics, 22.06.2019 18:20
Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?
Answers: 1
A car goes around a circular track at 30 m/s. If the radius of the curve is 90 m, what is the period...
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