Physics, 12.12.2019 00:31 nicolehathaway1012
A6 m long, uniform ladder leans against a frictionless wall and makes an angle of 74.3 ◦ with the floor. the ladder has a mass 25.8 kg. a 67.08 kg man climbs 82% of the way to the top of the ladder when it slips and falls to the floor. what is the coefficient of static friction be- tween the ladder and the floor?
Answers: 2
Physics, 21.06.2019 18:00
Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.
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Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
Physics, 22.06.2019 15:20
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
A6 m long, uniform ladder leans against a frictionless wall and makes an angle of 74.3 ◦ with the fl...
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