What is the buoyant force on a balloon filled with 1.0 m3
helium at
sea level. (b) What...
Physics, 17.10.2021 01:00 Kinglilray998
What is the buoyant force on a balloon filled with 1.0 m3
helium at
sea level. (b) What is the gravitational force on the same balloon?
Answers: 1
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A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
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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 70∘c. calculate the work (in kj) done during this process.
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Answers: 1
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