Which of the following is a non renewable resource? a. gold b. carbon c. river d. tree

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

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.