Two 1.0 kg masses are 4.0 m apart on a frictionless table. Each has 1.0μC of charge. Part A What is the magnitude of the electri c force on one of the masses? What is the initial acceleration of each mass if they are released and allowed to move?
2 answers:
Force between two charges is given by
Now in order to find the acceleration of each mass
we can use
F = ma
The force between two charged particles can be determined using the formula F = k Q1 Q2 / d² Using the given values F = 9 x 10^9 (1.0 x 10^-9)(1.0 x 10^-9) / 4² F = 5.625 x 10^-10 N The acceleration is ma = F 1 (a) = 5.625 x 10^-10 a = 5.625 x 10^-10 m/s²
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Answer:
this is a simple application of Newton's 2nd Law: F = ma.
F = 0.023(25)
So,
F =0.575 N.
Therefore
The answer is A.
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Explanation:
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Answer:
9.8kW
Explanation:
Given data
Mass= 60kg
Hieght= 4m
Time= 4.2seconds
We know that the energy possessed is given as
PE=mgh
PE=60*9.81*4
PE= 2354.4 Joulse
Also, the expression for power is
Power=Energy*Time
Power= 2354.4*4.2
Power=9888.48 watt
Power= 9.8kW