Answer:


Explanation:


if t=3.6s and initial velocity, v0, is -5m/s


if t=3.6s and the initial displacement, s0, is -8m:

According to the Law of Conservation of Charge, the net
charge remains constant. If both things have different charges, upon contact,
they would share the charge equally. In this case, the total charge is -16μC.
The final charge for each ball would be -8 μC.
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Answer: 
Explanation:
Given
Mass of particle is 
Charge of particle is 
Electrostatic force must balance the weight of the particle

Direction of the electric field is in upward direction such that it opposes the gravity force.
These are the characterstics of metal.
hope it helps u........