The velocity of sound in air is given by the equation v = 20 √273 + where v is the velocity in meters per second and t is the temperature in degrees celsius. find the temperature when the velocity of sound in air is 369 meters per second. round to the nearest degree.

67 degree

Step-by-step explanation:

The velocity of sound in air is given by the equation

where v is the velocity in meters per second and t is the temperature in degrees Celsius.

Given the velocity of sound in air is 369 that is our 'v'

We need to find out 't'

Divide by 20 on both sides

Take square on both sides

340.4025= 273+t

Subtract 273 on both sides

67.4025 = t

Now round to nearest degree

t= 67 degrees

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.