Water waves in a small tank are taking 14.45 seconds to pass a given point. What is the frequency of the wave?

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

the part of the wave he is travelling on is the crest

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this