Physics, 06.03.2021 19:30, panpanriser76

If a person’s mass is 85kg. What is his weight?

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Physics, 21.06.2019 22:50, toddbecca9

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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.

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Physics, 22.06.2019 12:30, mikurrjurdan

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.