Physics, 08.09.2019 08:10, claudialopez093

Acar travels a distance of 100 km in 2 hours. what is the average speed of the car (km/h)?

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Physics, 21.06.2019 19:30, lily3934

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Physics, 22.06.2019 05:30, cdraytonn

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

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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

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Physics, 22.06.2019 18:30, ayoismeisalex

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction