25. A 3 kg mass has an initial velocity vo= 6.325 m/s in the positive x-direction. Find the total work done on the object if its velocity changes to 8.944 m/s. a. -60J b. 60J c. 600J d. -600J

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