No force is necessary to keep a moving object moving (in a straight line at a constant speed).
Yes. On a circular path, the direction of motion is constantly changing. Change of direction is acceleration, even at constant speed.
<span>When two waves of same frequency travel in a medium simultaneously in the same direction then, due to their superposition, the resultant intensity at any point of the medium is different from the sum of intensities of the two waves. At certain points the intensity of the resultant wave has a large value while at some points it has a very small or zero. This is called wave interference.</span>
Hi there
Definition of heat
the quality of being hot; high temperature.
Answer:
waving
Explanation:
it waves go to a beach and see water doesn't rest it waves