Physics, 29.10.2020 14:00 asseatingbandit
Some scientists think that having a low manufacturing cost is more important than improving the efficiency of solar cells.
Answers: 3
Physics, 22.06.2019 08:00
If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles
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Physics, 22.06.2019 12:20
Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)
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Physics, 22.06.2019 14:40
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
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Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Some scientists think that having a low manufacturing cost is more important than improving the effi...
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