Answer:
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Explanation:
Answer:
Explanation:
Potential energy of a pair of charges
= k q₁q₂ /r₁₂
At r₁₂ = .125 m
= - 9 x 10⁹ x 2.4 x 4.3 x 10⁻¹² / .125
= - 743 x 10⁻³J
At r₁₂ = √2 x .275 m
- 9 x 10⁹ x 2.4 x 4.3 x 10⁻¹² / √2 x .275
= - 238.85 x 10⁻³J
= 239 x 10⁻³ J
Change = - 238.85 x 10⁻³ +743 x 10⁻³
= 504.15 x 10⁻³ J
B )
Work done by electric force will be same but in negative sign
= - 504.15 x 10⁻³ J
= - 504 x 10⁻³ J
Answer:
Acceleration, 
Explanation:
It is given that,
Force acting on the object across a smooth surface, F = 10 N
Mass of the object, m = 6 kg
Let a is the acceleration of the object. The forces acting on teh object is given by :
F = ma
So, the acceleration of the object is 
. Hence, this is required solution.
