Which student is doing work? Amy exerts a 55 N force to hold up a bowling ball as she walks toward the bowling lane. Jim exerts a 65 N force to hold a ball while spinning in a circle. Sara exerts a 20 N force forward on a bowling ball that rolls forward 1.0 m. Jane exerts a 45 N force upward while holding a ball above the groun

What are the dimensions of the cross section that passes through the points a, f, g, and d?

A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?

Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.