Abox slides across a frozen pond toward the left shore as two children standing on opposite shores pull on the box with ropes. the child on the left shore pulls with a force of 3.0 n, and the child on the right shore pulls with a force of 2.0 n. at a certain instant, the speed of the box is 3.0 m> s.
(a) at that instant, what is the power resulting from each force?
(b) what is the power resulting from both forces?
(c) do your answers to parts a and b change as the box slides? ⦁⦁

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed

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.)

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.