Thomas and John are carrying a 43kg cylinder head on a 510cm X 510mm board. The cylinder head with dimensions of 43cm X 250mm lies across the board 210cm from John. Who is carry the heaviest load?​

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.