The resistance of a wire is 8 Ω. What would the resistance be if the length of the wire was increased by a factor of four?2 Ω2 Ω 2 Ω
4 Ω

16 Ω

32 Ω

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.