THE DOPPLER EFFECT. Anyways, it would have a higher whistle as it approaches you, when it gets to you it only gets quieter because it leaves after. Think of a motorcycle going by, its loud coming to you then as it passes it gets quieter.
I believe c is correct......
Answer:
The work done by the electric force is = 
The potential of the starting point with respect to the end point is 
The magnitude of E 
Explanation:
Looking at this we can see that the work done by the electric force is equal to the kinetic energy this is because on the electric field is uniform and that the work done resulted in motion.
Mathematically

Where
is the potential difference
q is the charge whose value i given as = 
W is the workdone whose value is obtained as = 
Substituting



Mathematically

Where E is the electric field strength
d is the distanced moved and it is given as 6.00 cm = 0.06 m
Making E the subject of the formula

