College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Chapter 27, Problem 17CQ
To determine
The reason due to which humans on Earth are not affected by the X-ray emitted by the Sun and other celestial objects.
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Chapter 27 Solutions
College Physics
Ch. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Prob. 3RQCh. 27 - Prob. 4RQCh. 27 - Prob. 5RQCh. 27 - Prob. 6RQCh. 27 - Prob. 1MCQCh. 27 - Prob. 2MCQCh. 27 - Prob. 3MCQCh. 27 - Prob. 4MCQ
Ch. 27 - Prob. 5MCQCh. 27 - Prob. 6MCQCh. 27 - Prob. 7MCQCh. 27 - Prob. 8MCQCh. 27 - Prob. 9MCQCh. 27 - Multiple Choice Questions In which of the...Ch. 27 - Prob. 11MCQCh. 27 - Prob. 12MCQCh. 27 - Prob. 13CQCh. 27 - Prob. 14CQCh. 27 - Prob. 15CQCh. 27 - Prob. 16CQCh. 27 - Prob. 17CQCh. 27 - Prob. 18CQCh. 27 - Prob. 19CQCh. 27 - Prob. 20CQCh. 27 - Prob. 1PCh. 27 - Prob. 2PCh. 27 - Prob. 3PCh. 27 - Prob. 4PCh. 27 - 27.1 Black Body Radiation * EST Estimate the...Ch. 27 - Prob. 6PCh. 27 - Prob. 7PCh. 27 - Prob. 8PCh. 27 - Prob. 9PCh. 27 - Prob. 10PCh. 27 - Prob. 11PCh. 27 - Prob. 12PCh. 27 - Prob. 13PCh. 27 - Prob. 14PCh. 27 - Prob. 15PCh. 27 - Prob. 16PCh. 27 - Prob. 17PCh. 27 - Prob. 18PCh. 27 - Prob. 19PCh. 27 - Prob. 20PCh. 27 - Prob. 21PCh. 27 - Prob. 22PCh. 27 - Prob. 23PCh. 27 - Prob. 24PCh. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - Prob. 28PCh. 27 - Prob. 29PCh. 27 - Prob. 30PCh. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Prob. 34PCh. 27 - Prob. 35PCh. 27 - Prob. 36PCh. 27 - Prob. 37PCh. 27 - Prob. 38PCh. 27 - Prob. 39PCh. 27 - Prob. 40PCh. 27 - Prob. 41PCh. 27 - 42. * EST Estimate the temperature of the Sun's...Ch. 27 - Prob. 44GPCh. 27 - Prob. 46GPCh. 27 - Prob. 47GPCh. 27 - Prob. 48GPCh. 27 - Prob. 49GPCh. 27 - Prob. 50GPCh. 27 - Prob. 51GPCh. 27 - Prob. 52GPCh. 27 - Prob. 53GPCh. 27 - Prob. 54GPCh. 27 - Prob. 55RPPCh. 27 - Prob. 56RPPCh. 27 - Prob. 57RPPCh. 27 - Prob. 58RPPCh. 27 - Prob. 59RPPCh. 27 - Prob. 60RPPCh. 27 - Prob. 61RPPCh. 27 - Prob. 62RPPCh. 27 - Prob. 63RPPCh. 27 - Prob. 64RPP
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- Ultraviolet (UV) radiation is a part of the electromagnetic spectrum that reaches the Earth from the Sun. It has wave-lengths shorter than those of visible light, making it invisible to the naked eye. These wavelengths are classified as UVA, UVB, or UVC, with UVA the longest of the three at 320 nm to 400 nm. Both the U.S. Department of Health and Human Services and the World Health Organization have identified UV as a proven human carcinogen. Many experts believe that, especially for fair-skinned people, UV radiation frequently plays a key role in melanoma, the deadliest form of skin cancer, which kills more than 8000 Americans each year. UVB has a wave-length between 280 nm and 320 nm. Determine the frequency ranges of UVA and UVB.arrow_forwardShow that the energy E in eV of a photon is given by E=1.241106 m/A. where A is its wavelength in meters.arrow_forwardOne could feel heat transfer in the form of infrared radiation from a large nuclear bomb detonated in the atmosphere 75 km from you. However, none of the profusely emitted x rays or γ rays reaches you. Explain.arrow_forward
- What is the frequency in Hertz of an X-ray with wavelength (9.00x10^-2) nm? (Give your answer to 3 sf). Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answerarrow_forwardFor years, exposure to ultra-violet radiation from prolonged time in the sun has been the major identified cause of skin cancer. New research is showing that ultra-violet is not the only type of radiation from the sun that can increase the risk of skin cancer. Rates of skin cancer among pilots are twice that of non-pilots, but the glass used in planes blocks most the ultra-violet radiation. Pilots are also exposed to x-rays from the sun during flight. The x-rays that pilots are exposed to in one day of work are equivalent to a chest x-ray. Although getting an x-ray for medical reasons is believed to be safe, researchers believe that the frequent exposer that pilots experience increases their risk for skin cancer. The Electromagnetic Spectrum IMHE IGHE Fregiency r 10 10 10 1e 10 10" 10 10 10" Camme wened Wwwdengih in 10 10 10 1 10 10 10 10 o* 10* 10 10 10 19" 1e 10 1o Ikm Imm Tum Inm Ipm Use your knowledge of the electromagnetic spectrum to support the claim that pilots are at a greater…arrow_forwardAn X-Ray machine operates at a wavelength of 0.1nm. (1eV = 1.60 x 10-19 J) (a) (5) What is the frequency? (b) (5) What is the energy of an x-ray photon emitted from this machine?arrow_forward
- Photons of a certain ultraviolet light have an energy of 6.70 ✕ 10−19 J. (a) What is the frequency of this UV light? Hz(b) Use ? = c/f to calculate its wavelength in nanometers (nm). nmarrow_forwardAn x- ray photon has a wavelength of 6.00x10–10 m (e) What is its energy in benzene (n = 1.501) in joules?arrow_forwardSuppose that the microwave radiation has a wavelength of 11.6 cm. How many photons are required to heat 265 mL of coffee from 25.0 degrees Celcius to 62.0 degrees Celcius? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g.K), as water over this temperature range.arrow_forward
- Photons of a certain infrared light have an energy of 1.70x10 J. (a) What is the frequency of this IR light? Hz (b) Use A = c/f to calculate its wavelength in nanomneters. nmarrow_forwardSome insects, like bees, can see light of shorter wavelengths than humans can see. What kind of radiation do you think a bee sees?arrow_forwardSunburn produces cell damage in the skin. Why is ultraviolet radiation capable of producing this damage, while visible radiation, even if more intense, is not?arrow_forward
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