The position of an element on the periodic table help scientists predict the number of electrons an atom will gain or lose durin
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Answer:
Explanation:
Given data
Electric potential at point a is Ua=5.4×10⁻⁸J
q₂ moves to point b where a negative work done on it
Required
Electric potential energy Ub
Solution
When a particle moves from a point where the potential is Ua to a point where it is Ub the change in potential energy is equal to work done where the force exerted on the charge is conservative and work done is given by:
Now substitute the given values
So
Answer:
The value is
Explanation:
From the question we are told that
The mass of the car is
The acceleration is
Generally the net force applied on the rope is mathematically represented as
Here W is the weight of the car which is evaluated as
=>
=>
Generally the net force can also be mathematically represented as
So
=>
=>