Question

The speed of sound is measured to be 342 m/s on a certain day. What is this in km/h?

a) 1231.2 km/h
b) 1234.3 km/h
c) 1234.8 km/h
d) 1248.0 km/h

Answer 1

To convert the speed of sound from meters per second (m/s) to kilometers per hour (km/h), we multiply the given speed in m/s by the appropriate conversion factors: 1 km = 1000 m and 1 hour = 3600 seconds. The correct answer is a) 1231.2 km/h.

Step-by-step explanation:

To convert the speed of sound from meters per second (m/s) to kilometers per hour (km/h), we multiply the given speed in m/s by the appropriate conversion factors: 1 km = 1000 m and 1 hour = 3600 seconds. The correct answer is a) 1231.2 km/h.

To convert the speed of sound from meters per second (m/s) to kilometers per hour (km/h), we can use the following conversion factors:

1 km = 1000 m

1 hour = 3600 seconds

Therefore, we can calculate the speed of sound in km/h by multiplying the given speed in m/s by the conversion factor:

342 m/s × (1 km / 1000 m) × (3600 s / 1 hour) = 1231.2 km/h

So, the correct answer is a) 1231.2 km/h.