When hockey players push the puck along the ice it slides causing heat which melts the ice causing the friction against the ice to be less.
The answer is going to be B
Answer:
1) Lightning, you see the lightning first and then hear the thunder.
2)When a person far away from you hits a ball with a bat, you can see them striking the ball first and then you will hear the sound of ball striking against the bat.
Because upward buoyant force is slightly higher than gravitation force for this particular object
4896
0.85 x 45 x 128 = 4896
Change in energy = specific heat capacity x mass x change in temperature
