How old was Charles Manson when he set fire to his school?

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

The heliocentric and the geocentric models of the solar system included these central principles

An object in mechanical equilibrium is an object