👤

find out the speed of sound in air (a)°C and (b)90°C​

Sagot :

Answer:

385 m/s

Explanation:

The speed of sound in dry air, which is at 0 0C, is around 331 m/s. This

speed, however, gets faster when the temperature is increased with the presence of

water vapor. In warmer air, or air with moisture, molecules move faster and bump

into each other more often, so sound can travel faster. The speed of sound

increases by 0.60 m/s with every increase of 1C0.

FORMULA:

V= 331 m/s + (0.6 m/s °C ). T

V means" speed"

T means "temperature "

Wanna know how to solve its simple :

Given: T= 90°C

Sol: V= 331 m/s + (0.6 m/s °C). T

=331 m/s + (0.6 m/s °C ). 90°C ( multiply 90 in 0.6)

= 331 m/s +( 54 m/s ) ( then add 54 to 331)

V= 385 m/s