Let V(t) = t – 6t + 8 represent the velocity after t seconds of an object in meters per second. (a) What is the object's initial velocity? The object's initial velocity is i meters per second.

The resistance of a copper wire carrying an electrical current is directly proportional to its length and inversely proportional to its cross-sectional area. A copper wire with a diameter of 0.0126inch has a resistance of 64.9ohms per thousand feet. What length of 0.0201-inch-diameter copper wire will produce a resistance of 33.5ohms?