The speed of sound at 0°c is 331.5 m/s. calculate the speed of sound in the room at 20.0°c.

v = 343.5 m/s

Explanation:

As we know that speed of sound at a given temperature "t" is given by the formula

now we know that

if t = 0 degree Celsius

then the speed of sound will be

v = 331.5 m/s

now at t = 20 degree Celsius

so the speed will be 343.5 m/s

a displacement distance is size of displ

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west