46. Larry is 8 years old; his brother Murphy is 4 years old. Their Aunt Erica is taking a super-interesting developmental psychology class which is being taught by a great
professor. Aunt Erica will get extra credit if she administers Piaget's conservation of
liquid task to her nephews. Describe how Aunt Erica would do this, and compare Larry
and Murphy's likely responses. (10 points)

Explain what makes a passenger in a turning car slide toward the door. critical thinking

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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.)