Question

hey guys I need some help and I am not sure if I post it here or in science but I will give it a try

I am doing this lab and in the lab I measured how long it would take for a sound wave to get to five meters well I timed it several times and I got 190 in seconds my teacher wants to use this v=d/t but I don't know how to could someone explain it to me

Answer 1

this means velocity = distance/time

Answer 2

any questions?

Answer 3

yes sorry my computer was having problems

would I divide 190/5=38 right?

Answer 4

yup

Answer 5

sorry, thats upside down. 5/190

Answer 6

okay so 5/190= 0.0263157895

Answer 7

yeah
and remember your units. if its a velocity its probably m/s

Answer 8

okay thank you your amazing do you think you could help me with another thing I am tying to find but I cant

Answer 9

im not sure if you did that right though because the speed of sound at sea level is 340.29 m / s

Answer 10

yeah, i can help with another question

Answer 11

i got it at http://phet.colorado.edu/en/simulation/sound

okay i think there is a different way to calculate this but i don't know how

Answer 12

do you know or is there just one way

Answer 13

i got .0182 seconds when i did it

Answer 14

never mind i found another way frequency=velocity/wavelength

did you play around with this lab or did you find the calculations for what i gave to you

Answer 15

played around with it for a bit

Answer 16

oh see my teacher played with it to he said some people would get a different answer he got 0.130 when he did it

Answer 17

well either way its definitely smaller than 190

Answer 18

okay i will do it again

Answer 19

oh wait did you stop it when it got to five and not when it got to the end of the stick

Answer 20

yeah

Answer 21

oh now i feel stupid you were right sorry about that

Answer 22

okay see now i got 0.172

Answer 23

great, that makes alot more sense. now plug that in instead

Answer 24

5/0.172=29.0697674m/s

Answer 25

is that right