Answer:
electric potential energy=

so the electric potential energy and distance(r) are inversely proportional.
then, the greatest energy occur in the smallest distance b/n the two balloon.
A step-down transformer has more loops in : A. Primary coil
Primary coil refers to the coil to which alternating voltage is supplied. It's usually connected to the AC supply
hope this helps
The answer is 4.
The speed of light is faster in the air than in the glass, because a wavelength can be refracted in glass. Because the speed increases when the light wave passes from glass into air, the wavelength will also increase.
Answer: 15.87 m
From the equation of motion:

where,
is the distance traveled,
is the initial velocity,
is the acceleration and
is the time.
The rock free falls under gravity. Initial velocity,
, 
It took
for rock to hit the water.
Substitute the values in the given equation:

Hence, the water is 15.87 m below the top level of the well.
C. 70 inches is the answer