Is the refraction different entering medium that has a higher index of refraction compared to entering amedium that has a lower
1 answer:
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The work done by the electric field is equal to the loss of electric potential energy of the proton in moving from its initial location to its final location:
where
is the proton charge, 
and 
are the voltages in the final and initial locations. Substituting, we get
where
Answer:
Graph A
Explanation:
The impulse of a force F is defined as the integral of the force F over the time, t:
where t1 and t2 represent the time interval during which the force F is applied.
If we compare this to the graph, we see that the impulse J basically corresponds to the area under the graph of the force, F, against the time, t. So, in this case, it corresponds to choice A, which represents exactly this graph (force against time).