Acar moves due east with a constant velocity of 25m/s. a second car move due west with a velocity of 18m/s. if they start 2.0 km apart, where will they meet relative to car 1 ?

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Phase changes are chemical changes. true or false

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