A skier starts down a frictionless 28 â slope. After a vertical drop of 20 m , the slope temporarily levels out and then drops at 15 â an additional 44 m vertically before leveling out again.

What is the skier's speed on the upper level stretch?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell