A3.8 kg object to is lifted 12 meters. approximately how much work is performed during lifing? a) 45.6 j b)588 j c) 466.9j d) 372.4 j

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Which best represents the law of conservation of mass ?

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? ?