## zigzagoon2000 Group Title The velocity of sound in air is given by the equation v = 20√273+t where v is the velocity in meters per second and t is the temperature in degrees Celsius. Find the velocity when the temperature is 117ºC. Round to the nearest meter/sec. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/Question19.jpg A. 20 meters per second B. 330 meters per second C. 395 meters per second D. 216 meters per second A, B, C, or D? Please explain (: 2 years ago 2 years ago

1. ganeshie8

$$v = 20\sqrt{273+ t}$$ since, u want to find the velocity when t = 117, simply replace t with 117 $$v = 20\sqrt{273+ 117}$$ = ?

2. zigzagoon2000

C. Thank you

3. ganeshie8

good work ! yw :)

4. mayankdevnani

any confusion? @zigzagoon2000

5. mayankdevnani

Plug the temperature of 117 into the equation for T and solve.

6. mayankdevnani

and then over @ganeshie8