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Direct variation helps to calculate exponential proportions and is an easy way to figure out relations. If Godzilla were chasing you, which car wou...
In this video, we meet Slash McFender, a rock 'n' roller with a habit of forgetting his guitar at home. Slash has the brilliant idea to use his ch...
Inverse Variation 1456 Views
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Description:
In this video, we meet Slash McFender, a rock 'n' roller with a habit of forgetting his guitar at home. Slash has the brilliant idea to use his chest hairs for strings (gross, we know, but he had a show in fifteen minutes, okay?). Learn how to use inverse variation and the constant of proportionality to compare the vibration frequency of his chest hairs to the length of his chest hairs. If Slash’s new musical method catches on, we might be rocking out in our garages using our armpit hair in the near future. Shudder.
Transcript
- 00:00
Thank you We sneak Inverse variation Allah shmoop Slash mk
- 00:09
vendor lead guitarist for the band fiber death is on
- 00:13
his way to headline a concert Only one tiny problem
- 00:17
He forgot his guitar at home Thankfully he has a
- 00:19
thick jungle of chest hair Which you can pluck to
Full Transcript
- 00:24
place him too Suppose that the frequency of vibration of
- 00:31
slashes chest hair is inversely proportional to the hair's length
- 00:39
If one of slashes hairs zero point seven inches long
- 00:43
and vibrates at five What frequency in hurts with zero
- 00:47
point five inch long chest hair Have we start by
- 00:52
calling a frequency and the length of the chest Hair
- 00:56
elf problem tells us that the formula for the frequency
- 00:59
of f is one over health So f equals k
- 01:04
over l where kate is the constant of proportionality Find
- 01:12
kay Weaken fug in what we know Frequency is people
- 01:16
five and this is and our length is zero point
- 01:19
seven by multiplying both sides by zero point seven Way
- 01:35
See that k equals three point five Plugging this new
- 01:39
value into our formula way Get f people three point
- 01:42
five divided by zero point five giving us the frequency
- 01:46
f a zero point five inch long chest hair so
- 01:50
the answer is seven hertz The bad news is that
- 01:54
slash love fiber desk new sounds so much that he
- 01:57
has asked him Fan waits to start going shirtless is
- 01:59
well and throw away their gillette's adds a new spin
- 02:03
on air guitar he's really redefining the term here baby 00:02:17.854 --> [endTime] All right
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