A 1.50 x 103 kg car traveling at 100 km/h South collides with a 1.20 x 103 kg car traveling North at 100 km/h. The heavier car continues to move South after
the collision, but slows to 25.0 km/h. How fast is the lighter car moving after the
collision?

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Which radioisotope is used in dating geological formations?

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.