The answer is A study of different surfaces to compare ability to repel water. Hope this helps!
Frequency = 1/time period = 1/0.05 = 20s^-1.
A, something to remember is that if the numbers are even the answer too will be even. Every time hope this helps :>
Answer:
Hi Emily, I know you from school.
Explanation:
You're in my class. 2024 am i right
sorry, it's B, not a made a mistake in the approximation