11213
In a uniform circular motion map, what is always true? Check all that apply
The dots are different distances apart
Acceleration vectors point in the direction of motion.
Velocity vectors are always perpendicular to the circle.
Acceleration vectors point toward the center of the circle.
Velocity vectors are the same length.
Save and Exit
Next
Sub

Why is there friction between objects

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

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.)