50-500 USD or so
Mr- Belvedere - 1985 The Cadet 3-17 was released on: USA: 20 February 1987
.05 seconds
20 past seven means the same as 20 minutes after 7 or 7:20
Loss = 120 + 40*log(d) - 20*log(h1) - 20*log(h2) d=distance between antenna in kilometersh1 and h2 are heights of antenna in meters.
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20
10 feet
New Wave Blues was created on -20-08-07.
wave velocity = frequency in Hz x wavelength in meterSo frequency = 5 Hz and wavelength = distance between successive peaks = 20 cm = 20/100 mHence wave velocity = 5 * 20/100 = 1 m/s
Frequency = (speed)/(wavelength) = 20/2 = 10 Hz
A measure of the strength of a wave is its amplitude which is the vertical distance between the heights of the wave's peaks and the heights of its troughs. An ocean wave might be said to be 20 metres high, for instance, meaning that an observer can see that the bottom of the wave is 20 metres below the top of the wave. The amplitude of that wave would be 20 metres. If you wanted to compare two waves you could use their amplitude ratio, simply the ratio of their two amplitudes.