The spring constant for a given spring is known as 100 ± 1.3 newtons per meter. When this spring is compressed by a force, the compression in the spring is measured as 0.25 ± 0.02 meter. If you calculate the potential energy stored in the compressed spring in joules, what will be the uncertainty of your answer?

Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.