Answer:
The frequency of radio waves with a wavelength of 20m is
1.5 e+7 Hertz (Hz) or 15 million Hertz.
This was obtained from the formula speed (c) is equal to the product of frequency (f) and wavelength (λ)
c = fλ
Since we are looking for the frequency, we will divide both sides of the formula above by the lamda symbol for wavelength, which gives us:
f = c / λ
The value of wavelength is already given which is 20 meters. The speed of radio waves is the same with the speed of light when travelling in a vacuum – also with the other electromagnetic waves. Hence the speed (c) is 3 e+8 m/s
f = 3 e+8 m/s / 20m
f = 1.5 e+7 H
Explanation:
this is the correct answer you want.
Answer:
7 rows of trees
If x equals the amount of rows...
8x = 56
Explanation:
8x = 56
(1/8) 8x = 56 (1/8)
x = 7
Answer:
10.78 s
Explanation:
The force on the charge is computed by using the equation:
F = ma
∴
At time t(sec; the partiCle velocity becomes
The velocity of the charge after the time t(sec) is expressed by using the formula:
It is Jupiter.
Jupiter is the biggest planet in the solar system. No wonder ancient astronomers named it after Jupiter, King of the Roman gods. More than 1,000 planets the size of Earth could fit inside Jupiter. A tunnel through Jupiter would be eleven times longer than a tunnel through Earth. A trip around Jupiter's equator would take aix times longer than a trip around the Earth's equatior.
The great red spot is the most thrilling sight on the surface of Jupiter. The "spot" is twice as wide as the planrt Earth! Most astronomers think that the great red spot is as huge storm that has been raging for at least 300 years. (Thats as long as people have been obseving the planet.)