What force is required to accelerate a block of mass 4 kg at 2m/s2 on a surface which has a frictional force of 2N.
1 answer:
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Explanation:
It is given that,
Electric field,
We need to find the change in the electric potential energy of the proton-field system when the proton travels to x = 2.5 m
From the conservation of energy, the loss in potential energy is equal to the gain in kinetic energy and kinetic energy is is equal to the work done.
So, the change in electric potential energy of the proton field system is . Hence, this is the required solution.
Answer:
The time interval is
Explanation:
From the question we are told that
The length of the string is
The mass of the string is
The tension on the string is
The velocity of the pulse is mathematically represented as
Where is the linear density which is mathematically evaluated as
substituting values
Thus
The time taken is evaluated as
substituting values