A ball is thrown upward. What can be said about the system? A. PE never = 0 because the ball was thrown.
B. Conservation of energy does not apply because the ball was
thrown.
C. KE will be at a maximum when the ball is at its highest point.
D. The ball can be considered an isolated system.

A33.1 g copper object is launched from a 1.5 m 30° steel incline positioned on the floor by being pulled up a string attached to a 50.0 g mass suspended vertically over a pulley. the object is projected towards a glass table where it lands when it is at the point along its trajectory with the lowest speed. it comes to a halt when it clears the opposite edge of the table. it then falls and lands on 9 physics texts each 5 cm thick that are stacked on the floor on the opposite side of the table. assume that the table does not have a ledge and the rectangular object experiences 0.05 n of air resistance as it falls towards the books. how far and how long did the object travel and how fast does it hit the books. assume that at the moment the copper object leaves the incline, the massless string and ideal pulley break off

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

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