3 years ago

CHECK MY ANSWER???

1 answer:

6 0

I’m 100% sure it’s d

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AnnyKZ [126]

Wavelengths and frequecy

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3 years ago

olga nikolaevna [1]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Wavelength, Wavespeed and frequency depends on each other in the following way :

$\qquad \sf \dashrightarrow \: frequency = \dfrac{wave \: \: velocity}{wavelength}$

$\qquad \sf \dashrightarrow \: f = \dfrac{389}{8}$

$\qquad \sf \dashrightarrow \: f \approx 48.62 \: \: hertz$

And we know the Reciprocal relationship between frequency and period ~

So, let's find it's period •

$\sf{\qquad \sf \dashrightarrow \: t = \dfrac{8}{389}}$

$\sf{\qquad \sf \dashrightarrow \: t \approx 0.02 sec }$

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2 years ago

lina2011 [118]

Answer:

9.8m/s^2 down (option C)

Explanation:

The only acceleration acting on this motion case in the acceleration due to gravity: 9.8 m/s^2 in the downwards direction.

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2 years ago

Olin [163]

Question? U need a drawing

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2 years ago

zaharov [31]

9,100 is the answer if you do the work so i failed for yall you welcome

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2 years ago