Answer: I can't help you with the first part but maybe this will help on the second part-
Light behaves as a wave - it undergoes reflection, refraction, and diffraction just like any wave would. Yet there is still more reason to believe in the wavelike nature of light. Continue with Lesson 1 to learn about more behaviors that could never be explained by a strictly particle-view of light.
Sorry couldn't do better
Explanation:
Answer:
Un automóvil en movimiento en una carretera.
Una piedra rodando por una colina.
Un hierro que se empuja a través del materia
Answer:
0.1667Hz
Explanation:
by explanation frequency is given by 1/time
after carrying out the calculation of time we can easily get frequency.
time=speed/distance
=18/3
=6s
but frequency=1/time
hence=1/6
=0.1667hertz
I got false. But worthier answer is right.