If a star is 300 light years from Earth, how long does it take light from that star to reach earth?

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

Write a polynomial function with the given zeros x= -1,0,2show your work

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?