Radar bounced off of the Moon returns to Earth in 2.53 seconds. The velocity of the radio waves that comprise the radar beam is 3.00 x 108 m/sec. How far
is the one-way distance from Earth to the Moon? Think carefully about how far
the beam had to travel to go to the Moon and back again.

568.98

explanation:

its math

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

false br

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray