The answer would be "velocity will stay in the same direction." Since the ball is going in the same the ball is still going straight but just right. Many people get confused over velocity and speed, speed it the average amount on how fast a object is going and velocity is the amount of force a object has when it has speed. So, in this case since how the ball is going straight but just right it would stay in the same direction.
Hope this helps!
Answer:
The difference in the amount of energy transferred by the two bulbs is 1200 J.
Explanation:
The energy transferred by the two lightbulbs can be calculated with the given equation:
![E = P*t](https://tex.z-dn.net/?f=%20E%20%3D%20P%2At%20)
Where P is the power and t is the time
For the 60 W lightbulb:
![E_{60} = P*t = 60 W*30 s = 1800 J](https://tex.z-dn.net/?f=%20E_%7B60%7D%20%3D%20P%2At%20%3D%2060%20W%2A30%20s%20%3D%201800%20J%20)
For the 100 W lightbulb:
![E_{100} = P*t = 100 W*30 s = 3000 J](https://tex.z-dn.net/?f=%20E_%7B100%7D%20%3D%20P%2At%20%3D%20100%20W%2A30%20s%20%3D%203000%20J%20)
Hence, the difference in the amount of energy transferred is:
![E_{t} = E_{100} - E_{60} = 3000 J - 1800 J = 1200 J](https://tex.z-dn.net/?f=%20E_%7Bt%7D%20%3D%20E_%7B100%7D%20-%20E_%7B60%7D%20%3D%203000%20J%20-%201800%20J%20%3D%201200%20J%20)
Therefore, the difference in the amount of energy transferred by the two bulbs is 1200 J.
I hope it helps you!
Heat flows from one object to another by conduction, convection or radiation, depending on the physical state of the medium through which it must flow. Heat always flows from a region of high temperature to a region of lower temperature. Without a temperature difference, there can be no heat flow.