In a similar rolling race (no slipping), the two objects are a bowling ball and a circular hoop of unknown masses and radii. Which reaches the bottom first? Select one:
a. The circular hoop reaches the bottom first
b. The bowling ball reaches the bottom first
c. They reach the bottom at the same time
d. We don’t have enough information

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)