PLEASEE HELP A 30 kg wagon is accelerated across a level surface at 0.5 m/s2. What net force
caused this acceleration?

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:

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.