Physics, 26.03.2020 18:42 alanihuling
While skiing in Jackson, Wyoming, your friend Ben (of mass 62.3 kg) started his descent down the bunny run, 17.3 m above the bottom of the run. If he started at rest and converted all of his gravitational potential energy into kinetic energy, what is Ben’s kinetic energy at the bottom of the bunny run? Use g = 9.8 m/s 2 Answer in units of J.
Answers: 3
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Physics, 22.06.2019 09:30
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Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
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While skiing in Jackson, Wyoming, your friend Ben (of mass 62.3 kg) started his descent down the bun...
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