A 50 kg crate is being pushed on a horizontal floor at constant velocity. Given that the coefficient of kinetic friction between the crate and floor is 0.1, what is the push force?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

How are positive ions different from neutral atoms

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents