Acertain mountain road is inclined 3.1° with respect to the horizon. what is the change in altitude of the car as a result of its traveling 2.90 km along the road?

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system