Answer: The radio should be tuned to 100. 0 Mhz.
Explanation:
As radio waves are electromagnetic waves, like x-rays, UV rays, and all the wavelengths of visible light, they propagate in the free space at the speed of light: 3. 10⁸ m/s.
At any wave, there is a fixed relationship between the distance travelled by the wave along one cycle (which is called wavelength ) and the speed at which the wave oscillates (which is called the frequency of the wave), with the speed at which the wave propagates, as follows:
λ (wavelength) = v (speed) / f (frequency)
Replacing by the values, and solving for frequency, we have:
f = 3. 10⁸ m/seg / 3 m = 10⁸ 1/sec = 10⁸ Hz = 100. 0 Mhz
This is the radio channel to which must be tuned in order to listen the station with a wavelength of 3 m, in the FM band.
Technology affects people's lives differently.
Some are bad and some are good.
But for me, technology gives us a chance to collaborate and connect even if we are miles away.
People are opening their mind to new kind of knowledge that can help us improve and grow.
Answer:
Explanation:
Excel has a built-in function that allows you to type in a word, letter, or number and it will automatically find every one of that entry and replace it with whatever you want. To do this you simply click on Home > Find & Select > Replace and fill out the information. Once the info is completed click Replace All. This shows exactly why it is way better to do these result sheets on the computer as opposed to on a piece of paper, it allows you to automate everything and fix multiple mistakes with a simple button click.
