Physics, 08.01.2020 03:31 ecoagro1934
The soles of a popular make of running shoe have a force constant of 2.0×105 n/m . treat the soles as ideal springs for the following questions.
part a: if a 62 kg person stands in a pair of these shoes, with her weight distributed equally on both feet, how much does she compress the soles?
part b: how much energy is stored in the soles of her shoes when she's standing?
Answers: 2
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The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass
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Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 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^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) 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?
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Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?
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Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.
Answers: 2
The soles of a popular make of running shoe have a force constant of 2.0×105 n/m . treat the soles a...
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