Physics, 10.06.2020 05:57 kayolaaaa53
A car that has a mass of 1,500 kg is supported by four springs that have a spring constant of 10,500N / m. The car was boarded by a family with a total mass of 180 kg. When the car crosses the bridge, decide
a. the frequency of vibration of the spring of the car
b. period of vibration of the car spring
c. the time needed to travel the five vibrations
Answers: 1
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Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
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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
A car that has a mass of 1,500 kg is supported by four springs that have a spring constant of 10,500...
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