The speed of radio waves is 3*10^8m/s, the same as the speed of light. If a spacecraft transmits a radio signal with frequency 3*10^9Hz, what is the wavelength of those waves?

Divide the speed of "light", in m/s, by the frequency in Hz. That will give you the wavelength in meters.

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To find the wavelength of the radio waves transmitted by the spacecraft, we can use the formula:

Wavelength = Speed of Light / Frequency

Given that the speed of radio waves is 3 × 10^8 m/s (which is the same as the speed of light) and the frequency of the radio waves is 3 × 10^9 Hz, we can substitute these values into the formula to calculate the wavelength:

Wavelength = (3 × 10^8 m/s) / (3 × 10^9 Hz)

Now let's simplify the expression:

Wavelength = (1/10) × (10^8 m/s) / (10^9 Hz)

Wavelength = (1/10) × (10^(8-9)) m

Wavelength = (1/10) × 10^(-1) m

Since 1/10 is equal to 0.1, we can write it as:

Wavelength = 0.1 × 10^(-1) m

Simplifying further:

Wavelength = 1 × 10^(-2) m

Therefore, the wavelength of the radio waves transmitted by the spacecraft is 0.01 meters or 1 centimeter.