Which one of the following is NOT acceleration A.
a change in mass
B.
a change in direction
C.
an increase in velocity
D.
a decrease in velocity

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

a sonic boom is a loud boom that breaks the sound barrier

explanation:

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.