A1000 kg car pushes a 2000 kg car that has a dead battery. when the driver steps on the accelerator, the drive wheels of the car push backward against the ground with a force of 4500 n.

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?