the driver of a car slams on the brakes when he sees a tree blocking the road, the car slows uniformly with an acceleration of 6m\s^2 for 4s, making straight skid marks65m long all the way to the tree, with what speed does the car then strike the tree?

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures

magnets not strong enough

explanation: