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masha68 [24]
3 years ago
11

15. A boy on board a cruise ship drops a 30.0 gram marble into the ocean. If the resistive force proportionality

Physics
1 answer:
NISA [10]3 years ago
7 0
Answer
I could be wrong but I’m pretty sure it’s C
Explanation
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The cell would die if it stopped using energy
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Suppose the B string on a guitar is 24" long and vibrates with a frequency of about 247 Hz. You place your finger on the 5th fre
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To solve this problem it is necessary to apply the related concepts to string vibration. This concept shows the fundamental frequency of a string due to speed and length, that is,

f = \frac{v}{2L}

Where

v = Velocity

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Directly if the speed is maintained the frequency is inversely proportional to the Length:

f \propto \frac{1}{L}

Therefore the relationship between two frequencies can be described as

\frac{f_2}{f_1}=\frac{l_1}{l_2}

f_2 = \frac{l_1}{l_2}(f_1)

Our values are given as,

l_1 = 24"\\f_1 = 247Hz\\l_2 = 18"

Therefore the second frequency is

f_2 = \frac{l_1}{l_2}(f_1)\\f_2 = \frac{24}{18}(247)\\f_2 = 329.33Hz

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a light sensor is based on a photodiode that requires a minimum photon energy of 1.30 ev to create mobile electrons.
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Using a thermometer, one can gauge temperature. It is calibrated using different temperature scales, each of which historically defined itself using a different set of reference points and thermometric materials.

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