If one object has a positive charge and another has a negative charge, the object will be...

A. Cancel

B. Attract

C. Mix

D. Repel

The image below shows numerous volcanic mountains in the pacific northwest. what is the most likely cause of the volcanic and earthquake activity in this region?

Blank liquids and gases exert a buoyant force on objects placed in them

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.