Answer:
The answer you have selected is correct.
Explanation:
Increase radius, force of gravity decreases
Electricity. Ruler. 69. N.
Answer:
v = 19.6 m/s.
Explanation:
Given that,
The radius of the circle, r = 5 m
The time period of the ball, T = 1.6s
We need to find the ball's tangential velocity.
The formula for the tangential velocity is given by :

Putting all the values in the above formula

So, the tangential velocity of the ball is 19.6 m/s. Hence, the correct option is (c).
Answer:
Two point charges are separated by 6.4 cm . The attractive force between them is 10 N .
units.
Explanation: