Answer:
They can be seen from a distance of 4.372 kilometers.
Explanation:
Using the Reyligh creterion for diffraction through a circular aperture we have
where symbol's have their usual meaning
thus applying values we get


<span>C. It is the difference in electrical potential energy between two places in an electric field.</span>
It can't. Waves must have a medium to travel through
Answer:
its a or more probably e
Explanation:
the ball goes back and forward in kinetic energy.
The correct answer is :
B. the value of q is positive.
Hope this helps,
Davinia.