Physics, 15.10.2019 04:00, theebtful1
A86.6-kg man is standing on a frictionless ice surface when he throws a 2.40-kg book horizontally at a speed of 10.9 m/s. with what speed does the man move across the ice as a result? give your answer in m/s, and be sure to use three significant figures in your answer.
Answers: 2
Physics, 22.06.2019 12:30, lmolder1329
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.
Answers: 1
Physics, 22.06.2019 14:50, lilyrockstarmag
Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two
Answers: 1
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