A positive rod is touched to a neutral sphere. There is a bar with positively charged particles attached to a ball with positive
and negative charged particles. Which best explains the arrow’s purpose in the diagram? It is showing the direction that protons move in, making the sphere negative. It is showing the direction that protons move in, making the sphere positive. It is showing the direction that electrons move in, making the sphere positive. It is showing the direction that electrons move in, making the sphere negative.
1 answer:
Answer: A is correct
It is showing the direction that protons move in, making the sphere negative
Explanation:
From the figure, since the charges on the rod are completely positive, it shows that the protons are transferring from the sphere to the rod leaving the rod negatively charged.
Therefore, It is showing the direction that protons move in, making the sphere negative.
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Answer:
Total angular displacement will be 19.998 radian
Explanation:
It is given that the washer starts from the rest and reach reach the speed of 2 rev/sec in 11 sec
So initial angular velocity
And final angular velocity
Time t = 11 sec
So angular acceleration
So angular displacement in this 11 sec
Now the washer slows down and stops in 9 sec
So final angular velocity = 0 rad/sec
So angular acceleration
So angular displacement
So total displacement in 20 sec =