At steady state, a heat pump driven by an electric motor maintains the interior of a building at th = 293 k. the rate of heat transfer, in kj/h, from the building through its walls and roof is given by 8000(th - tc), where tc is the outdoor temperature. determine the minimum electric power, in kw, required to drive the heat pump for tc = 267 k.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

b.a device that inputs heat into a cool object

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.