For the Rectifier Filtering experiment in the Laboratory Procedure 2(b), consider the advantages of a very large filter capacitor. Calculate the ripple voltage as Vr=Vpeak-Vvalley in all cases. What would Vr become if C were doubled? Estimate the fraction of a cycle for which the diode conducts in each case.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

Name two kinds of practical electric pumps.