Question

when the temperature is 68°F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometers does sound travel in five seconds?

Answer 1

distance in 5 seconds = distance in 1 second x 5 right?

Answer 2

idk that's why I am asking

Answer 3

@johnweldon1993

Answer 4

hmm the eqn in my last post is the right one to solve this prob....

Answer 5

Well we need a conversion here first...

Notice what they give us...343 METERS per seconds..

Then they ask for KILOMETERS...

How many meters are in 1 Kilometer?

Answer 6

0.001

Answer 7

thanks @johnweldon1993 i missed that!

Answer 8

ops wait hold on

Answer 9

correction=1000

Answer 10

Well 1000M = 1 KM yes but you were right the first time...we need the .001 because we want to know how many KM are in 1 M

So..

\[\large \frac{343Meters}{Second} \times \frac{.001 KM}{1 Meter} = \frac{.343KM}{Second}\]

Now just multiply that by 5

Answer 11

1716.72 @johnweldon1993

Answer 12

plz read john's eqn again....carefully :)

Answer 13

@Xx_J.L.S_Xx so we have

\[\large .343KM/sec \times 5\]

Answer 14

1.715

Answer 15

Looks right to me :)

1.715km/sec

Answer 16

what next?

Answer 17

*That's the answer :)

Answer 18

omg thanks!

Answer 19

Anytime :)