The equation e = mc2 relates energy and
a. force
b. work
c. gravity
d. mass

the answer would be c. motion and direction

i hope this : )

heats surface water up

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

80cm/s.

24cm/s.

53.3cm/s.