You testify as an expert witness in a case involving an accident in which car a slid into the rear of car b, which was stopped at a red light along a road headed down a hill (fig. 6-25). you find that the slope of the hill is u " 12.03, that the cars were separated by distance d " 24.0 m when the driver of car a put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car a at the onset of braking was v0 " 18.0 m/s. with what speed did car a hit car b if the coefficient of kinetic friction was (a) 0.60 (dry road surface) and (b) 0.10 (road surface covered with wet leaves)

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 .

explanation:

newton's third law, for every action there is an equal and opposite reaction.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: