We love blasting our radio in the morning to wake up. radio waves are used to transmit information on various channels. calculate the wavelength of a radio wave that has a frequency of 5.4 x 10^10 hz
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Ответ:
wavelength = 0.56 × 10⁻² m
Explanation:
Given data:
Frequency of radiation = 5.4 × 10¹⁰ Hz
Wavelength = ?
Solution:
Formula:
speed of light = wavelength × frequency
wavelength = speed of light / frequency
wavelength = 3 × 10⁸ m/s / 5.4 × 10¹⁰ Hz ( Hz= 1/s)
wavelength = 0.56 × 10⁻² m
Ответ:
cause Snow, ice, and clouds have high albedos (typically from 0.7 to 0.9) and reflect more energy than they absorb. Earth's average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed. ... Image courtesy of NASA Earth Observatory.Light-colored materials can be used in warmer climates to keep houses cool. White roofs, for instance, reflect most of the light energy that strikes them. Light-colored curtains can also be used to reflect rays of sunlight when the Sun is at its hottest.
Explanation: