Ahorizontal platform in the form of a disk is supported only at its center a man of mass m, originally at rest at a distance d from the center, begins to walk with uniform velocity v in the circumferential direction, stopping after an interval of time t. plot the torque exerted on the support as a function of time

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly