2) Selina drives her car that weighs -1000N of force. As she drives friction exerts 10 N of force. The ground exerts a
force that is 1000 N. The car's engine is putting forth 580 N
of force and air resistance is 12 N.

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

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?