Physics, 02.08.2019 14:10, Benitez0212

How old is the planet? how old is the earliest evidence of life on earth?

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Physics, 22.06.2019 04:30, angie249

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Physics, 22.06.2019 06:00, jjgurl60

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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Physics, 22.06.2019 09:30, looloo273

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Physics, 22.06.2019 15:20, mjwaple57

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