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ale4655 [162]
2 years ago
12

Please help with these questions

Physics
1 answer:
lord [1]2 years ago
8 0
When do you gotta turn it in?
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Which of the following statements is TRUE?
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I think C......................

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2 years ago
A violin string that is 50.0 cm long has a fundamental frequency of 440 Hz. What is the
amid [387]
For a standing wave on a string, the wavelength is equal to twice the length of the string:
\lambda=2 L
In our problem, L=50.0 cm=0.50 m, therefore the wavelength of the wave is
\lambda = 2 \cdot 0.50 m = 1.00 m

And the speed of the wave is given by the product between the frequency and the wavelength of the wave:
v=\lambda f = (1.00 m)(440 Hz)=440 m/s
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3 years ago
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Questions 15 out of 20
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D

Explanation:

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3 years ago
An airplane starts from rest and accelerates at a constant rate of 3.00 m/s2 for 30.0 s before leaving the ground. a. How far di
rosijanka [135]

The formula we can use in this case is:

d = v0t + 0.5 at^2

v = at + v0

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d = distance travelled

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t = time travelled

a = acceleration

v = final velocity when it took off

 

a. d = 0 + 0.5 * 3 * 30^2

d = 1350 m

 

b. v = 3 * 30 + 0

<span>v = 90 m/s</span>

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that delivers oxygen to your body and In the video your blood is compared to a picks up CO2 to be released out when you breath.
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I’m a bit confused. What’s the question?
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