A person is standing on the beach counting the waves that come in. The person counts 10.0 waves in 68.0 s. What is the frequency of the ocean waves? HOW DO I FIND THE UNIT FOR THIS QUESTION?

0.14 Hz

Explanation:

We are told the person counts 10 waves in 68 s, from this information we can calculate the frequency , which is defined as the number of oscilations or waves per unit of time. Then:

This is the frequency of the ocean waves. Now, according to the International System of Units (SI), frequency is measured in Hertz (), which is equivalent to .

So, according to this, the frequency of the ocean waves is

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)