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2 years ago

12

A wave is traveling at 36 m/s. If its wavelength is 12 m, how many times does a wavelength move across a set point every second?

2 answers:

Lynna [10]2 years ago

8 0

Basically, what is asked here is the frequency in per second. This could be calculated by dimensional analysis, such that the remaining unit is 1/s.

$36 m/s\ / \ 12 m = 3\ s^{-1}$

Thus, the answer is three times. Letter B.

I hope I was able to give a good explanation. Thank you.

Sunny_sXe [5.5K]2 years ago

6 0

Answer:

The answer is B. 3 times

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The perimeter of a rectangular park is 2.6 miles. the length of the park is 0.8 miles. what is the width of the park

mr_godi [17]

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2 years ago

Beinggreat78 answer fast please :')

Dovator [93]

Answer:

17662.5 sq. feet

Step-by-step explanation:

We know that the formula for Area of a Circle is $A = \pi (r)^2$ .

r = radius; d = diameter, which is r*2

And so, in the question, it gives you that the diameter is 150, first we divide it by 2 to get the radius.

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The question said to keep $\pi$ =3.14, so then we plug in the equation-

$A = 3.14 * 75^2$

Then we use PEMDAS [Parenthesis; Exponents; Multiply & Divide; Add & Subtract] which would get us-

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So our answer is-

17662.5 sq. feet

I hope this helps!
Please give brainliest!

Have a great day

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