How long will it take for a radio wave to travel 900 km?
the speed of radio waves is 3x10^8 m/s

time is distance/ speed

Step-by-step explanation:

time= (900×1000)/(3×10^8)

0.003 seconds

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

step-by-step explanation:

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