Metals are good conductors of electricity because . a) they are easily reduced and oxidised. b) they are easily ionised c) their valence electrons are not localised d) they are ductile. e) they can be drawn into wires.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big