The distance from earth to the moon is approximately 3.84x10^5 km. how long would it take a radio wave with the frequency 7.25x10^5 hz to travel from earth to the moon

Given:

Distance from earth to moon (D)= 3.84*10⁵ km

Frequency of radio wave = 7.25*10⁵ Hz

To determine:

Time taken (T) for the radio wave to travel from earth to moon

Explanation:

The speed at which the radio wave travels = speed of light c = 3.0 *10⁸ m/s

Speed = Distance traveled/time take

Time taken = Distance/Speed = 3.84*10⁸ m/3.0*10⁸ ms-1

Time = 1.28 sec

Ans:  The time taken will be 1.28 sec and is independent of the frequency

the answer is d.) potassium

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;