Ben and tom lifted plates up and down to practice for work. it is true or false that work has been. Accomplished

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th