Led the people’s liberation army to victory during the chinese civil war and then became the chairman of the people’s republic of china.
a. mahatma gandhi
b. aung san suu kyi
c. mao zedong
d. ferdinand marcos

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.)

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.