Can you check this? Samantha swam upstream for some distance in one hour. She then swam downstream the same river for the same d
istance in only 12 minutes. If the river flows at 4 mph, how fast can Samantha swim in still water?
2 answers:
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Explanation:
Given that,
Charge 1,
Charge 2,
The distance between charges, r = 1.99 m
To find,
The electrostatic force and its nature
Solution,
(a) The electric force between two charges is given by :
(b) As the magnitude of both charges is positive, then the force between charges will be repulsive.
Therefore, this is the required solution.
Answer:
Explanation:
Let mass of bullet = m1 = 28g= 0.028 kg
mass of pendulum = m2 = 3.1 kg
