The fundamental frequency of a stringed instrument corresponds to a wavelength equal to one-half the length of the string
Indicate whether the statement is true or false
FALSE
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Why do astronomers need different telescope designs to observe across the electromagnetic spectrum?
A) New telescopes incorporate new technology to increase their efficiency. B) Telescopes have to adapt to the greater distortion of the atmosphere at shorter wavelengths. C) Photons of different energy have different wavelengths, some of which are not accessible from Earth's surface and require different collection strategies. D) Light pollution is worse at radio wavelengths than visible wavelengths. E) Astronomers and engineers enjoy the challenge of making new telescope designs.
According to Newton's Law of Universal Gravitation, if the Moon were three times further from Earth, the force by Earth on the Moon would:
A) increase by a factor of 3. B) decrease by a factor of 3. C) increase by a factor of 9. D) decrease by a factor of 9. E) stay the same.
When the distance between two charges is halved, the electric force between the charges
A) quadruples. B) doubles. C) is half. D) is reduced by one-quarter. E) none of the above
Excimer laser radiation from KrF 248 nanometer (nm) broad beam can produce ozone from air.(76) Discuss whether the lofting of low-level satellites containing excimer lasers could be used to restore the ozone layer
What will be an ideal response?