Question

Chloe is playing the flute some distance away from a crowd. If the atmospheric temperature is 15°C, what is the speed of the sound traveling from the flute?

Answer 1

Do you know of a formula for solving this?

Answer 2

Just a moment

Answer 3

Do you know how to convert from Celsius to Kelvin?

Answer 4

no

Answer 5

I can give you the formula

Answer 6

\[T _{k} = T _{c} + 273.15\]

Where tc = the temperature in celsius and tk = the temperature in kelvin

Answer 7

So what would you do?

Answer 8

plug in 15c into Tk?

Answer 9

No, 15 is the temperature in Celsius, so we would plug it into Tc

Answer 10

Then solve for Tk

Answer 11

thats what i meant

Answer 12

What do you get for Tk?

Answer 13

I add 15 to 273.15

Answer 14

288.15 right?

Answer 15

correct

Answer 16

So the reason we converted from Celsius, to Kelvin, is because the formula for calculating the speed of sound only works with Kelvins

Answer 17

\[V _{sound} = 645.855 \times (\frac{ T _{k} }{ 273.15 })^{0.5}\]

Where V sound = the speed of sound, and Tk as we know, is the temperature in Kelvins

Answer 18

You can also look at the formula this way:

\[v _{sound} = 645.855 \times \sqrt (\frac{ T _{k} }{ 273.15 })\]

Answer 19

Let me know if you need help

Answer 20

i need hep

Answer 21

What part are you confused with?

Answer 22

I am just confused on how they turned it into the hertz equation

Answer 23

What do you mean/

Answer 24

?

Answer 25

because the answer choices are like 5.52 x 10 hertz

Answer 26

Interesting

Answer 27

Can you provide me with all of the answer choices? Perhaps a screenshot?

Answer 28

IM on my laptop

Answer 29

There is a screenshot tool by the name of LightShot. It's very easy and simple, works for Mac/Windows.

Answer 30

Let me know if you can get it. If not we can figure it out somehow.

Answer 31

i don't know im sorry

Answer 32

This is the LightShot tool in action.

http://prntscr.com/iysupu

If you followed the equation, you would have gotten 340.2 m/s

Answer 33

I looked up examples of this being solved and the speed of sound was always given in m/s.

Answer 34

hertz sounds like frequency, which is a bit different