Physics, 25.03.2021 05:40, rleiphart1
A boy with mass 25 kg climbs into a small tree. He sits on a branch that is 2.0 m above the ground. What is his gravitational potential energy with respect to the ground?
Answers: 3
Physics, 22.06.2019 05:40, laurelbrasi
The difference between a red shift and a blue shift has to do with wavelength frequency. t or f
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Physics, 22.06.2019 06:10, crystalryan3797
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70βc. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 14:40, allenpaietonp9v8sv
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4Γ106m.
Answers: 2
Physics, 22.06.2019 15:30, tiffuuu
At 20βc, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12Γ10β6 kβ1 and23Γ10β6 kβ1 respectively.
Answers: 1
A boy with mass 25 kg climbs into a small tree. He sits on a branch that is 2.0 m above the ground....
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