A 110-V household circuit that contains an 1800-W microwave, a 1000-W toaster, and an 800-W
coffeemaker is connected to a 20-A fuse. Determine the current. Will the fuse melt if the microwave and
coffeemaker are both on?

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory