Calculate the speed of a radio wave with a wavelength of 3000 m and a frequency of 100 kHz.

The speed of the radio wave with the given wavelength and frequency is 3 × 10⁷ ms⁻¹.

Given the data in the question;

Speed;

To determine the speed of the radio wave, we use the expression for the relations between wavelength, frequency and speed of wave.

Where is wavelength, f is frequency and v is speed of wave.

We substitute our values into the equation and find "v"

Therefore, the speed of the radio wave with the given wavelength and frequency is 3 × 10⁷ ms⁻¹.

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Explanation:

Speed = Wavelength * Frequency

= 3km * 100kHz

= 3 * 10⁸ m/s.

massxgravity x heght=weightxheight= pe

4900=490xh

h=10