What is the purpose of radio waves?

2 answers:

8 0

The prime purpose of radio is to convey information from one place to another through the intervening media (i.e., air, space, nonconducting materials) without wires. Besides being used for transmitting sound and television signals, radio is used for the transmission of data in coded form.

Readme [11.4K]2 years ago

3 0

Answer:

Explanation:

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Crests of an ocean wave pass a pier every 10.0 s. if the waves are moving at 5.6 m/s, what is the wavelength of the ocean waves?

ExtremeBDS [4]

Every 10.0 seconds, a crest of the wave passes the pier. This means that the period of the wave is exactly 10.0 s:
$T=10.0 s$
which means that the frequency of the wave is
$f= \frac{1}{T}= \frac{1}{10.0 s}=0.1 Hz$

The wavelength of a wave is related to its frequency by the relationship
$\lambda= \frac{v}{f}$
where v is the speed of the wave.
In this problem, v=5.6 m/s; if we use the previous formula, we find the wavelength of the wave:
$\lambda= \frac{5.6 m/s}{0.1 Hz}=56 m$

4 0

3 years ago

The fastest speed ever measured for a tennis ball served by a player was 263 km/h. The distance of the tennis court from one end

Paha777 [63]

Answer:

0.3257 seconds

39.67 m/s

Explanation:

Speed = 263 km/h

Converting to m/s

$1\ km/h=\frac{1}{3.6}\ m/s$