Which three statements describe mechanical waves?
A.
The waves need matter to transfer energy...
Physics, 26.01.2021 05:20 justinchou814
Which three statements describe mechanical waves?
A.
The waves need matter to transfer energy.
B.
The waves transfer energy by causing particles of matter to move.
C.
The waves can travel through empty space.
D.
The waves can transfer energy through solids, liquids, and gases.
Answers: 3
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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
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