Vectors and scalars PLEASEE, SOMEONE HELP ASAP.
I'll give 20 points to the first one thank you

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

In a system, when potential energy decreases, then entropy also decreases. true false