The word atom means "uncuttable" because we used to think that atoms were the smallest unit of matter. We now know this is not the case. Atoms can be broken down into three pieces called sub atomic particles. What are these 3 particles?

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

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

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane