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10 trillion A distant star is traveling toward Earth with a speed of 36,500 km/s. If...
An astronomer observed electromagnetic waves emitted by oxygen atoms in a distant galaxy moving toward Earth...
An astronomer observed electromagnetic waves emitted by oxygen atoms in a distant galaxy moving toward Earth at a speed of 2.467 times 10^7 m/s. In the laboratory on Earth, oxygen atoms emit waves that have a frequency of 5.841 times 10^14 Hz. At what frequency does the astronomer observe the light emitted by oxygen atoms from the distant galaxy? A certain metal has a work function for photoelectric emission of phi delta = 3.50 eV. What is the threshold frequency...
1. Doppler shifts have been used to determine the rate of expansion of the universe. a) Given that a distant star is receding at a speed approximately 8% of the speed of light, determine the shif...
1. Doppler shifts have been used to determine the rate of expansion of the universe. a) Given that a distant star is receding at a speed approximately 8% of the speed of light, determine the shift in the observed wavelength for a particular spectral line of 3 ps* that normally has a wavelength of 326 nm b) The FWHM of the spectral line mentioned in the previous problem is 53.8 pm. What is the surface temperature of the star?
1....
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50...
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50 x 1011 m. How long does it take for light to cover this distance? 2) Suppose a particular galaxy emits orange light with a frequency of 5.000 x 1024 Hz. If the galaxy is moving away from Earth with a speed of 3325 km/s, what is the frequency of the light when it is observed on Earth?
(a) An asteroid is in an elliptical orbit around a distant star. At its closest approach,...
(a) An asteroid is in an elliptical orbit around a distant star. At its closest approach, the asteroid is 0.700 AU from the star and has a speed of 54.0 km/s. When the asteroid is at its farthest distance from the star of 36.0 AU, what is its speed (in km/s)? (1 AU is the average distance from the Earth to the Sun and is equal to 1.496 x 101 m. You may assume that other planets and smaller objects...
An exoplanet is in an elliptical orbit around a distant star. At its closest approach, the...
An exoplanet is in an elliptical orbit around a distant star. At its closest approach, the exoplanet is 0.530 AU from the star and has a speed of 54.0 km/s. When the exoplanet is at its farthest distance from the star of 33.0 AU, what is its speed (in km/s)? (1 AU is the average distance from the Earth to the Sun and is equal to 1.496 ✕ 1011 m. You may assume that other planets and smaller objects in...
Questions [1] One difference between mechanical waves and EM waves is: only one needs a source,...
Questions [1] One difference between mechanical waves and EM waves is: only one needs a source, only one needs a medium to disturb. (2) If a color of visible light had a frequency of 621 THz, then the color is: red, orange, yellow, green, blue, violet. [3] Different types of EM waves are categorized by their: amplitude, energy, frequency, wave speed in a vacuum. [4] The prefix infra- means: lower than , higher than, about the same. [5] Any piece...
Figure 2 shows observations of the spectrum of another star, like the Sun but more distant,...
Figure 2 shows observations of the spectrum of another star, like the Sun but more distant, as seen from the Earth over the course of a year. The wavelength range shown is the same tiny portion of the spectrum shown in the bottom panel of the earlier figure, and the same two prominent iron lines are seen. From laboratory measurements of such atoms, it is known that the wavelengths of these two lines are hemit - 633.53 for the shorter...
E (t) = Eo cos (kz-wt) Where k is the wave-number and w is the angular...
E (t) = Eo cos (kz-wt) Where k is the wave-number and w is the angular frequency of the wave. Now some scientist tells you that a distant star has been observed to be green in color, with an observed frequency of fobserved 550 THz (terahertz, 1012). She also says that from other factors, it is known that the star should be emitting light with wavelength factual-1800 THz somewhere in the UV spectrum. They ask you to find two things...
ON THIS PAGE. SHOW WORK ON THE OPPOSITE PAGE VERS ON 20) Riding The Waves lculate the missing quantity. Hint: 1 H...
ON THIS PAGE. SHOW WORK ON THE OPPOSITE PAGE VERS ON 20) Riding The Waves lculate the missing quantity. Hint: 1 Hz= 1 per second (= 1 sec ) = 3,600 /hour) Earthquake!! : An earthquake in Calexico, CA was felt in San Diego (210km distant) 28 seconds. The quake swayed houses @ twice per second = 2Hz. (1) The wave velocity was (2) The earthquake WAVELENGTH in km was: v= km/sec. 2= B) Thunder: After a lightning flash, you...
s. What is the wavelength of a neutron traveling at a speed of 4.15 km/s? 9....
s. What is the wavelength of a neutron traveling at a speed of 4.15 km/s? 9. Explain why the following sets of quantum numbers never occur: 10. The energy of a photon is 3.34 X 10-19J. What is the wavelength of the light? What color is this? 11. A microwave oven heats by radiating food with microwave radiation, which is absorbed by the food and converted to heat. If the radiation wavelength is 12.5 cm, how many photons of this...
An astronomer observed electromagnetic waves emitted by oxygen atoms in a distant galaxy moving toward Earth at a speed of 2.467 times 10^7 m/s. In the laboratory on Earth, oxygen atoms emit waves that have a frequency of 5.841 times 10^14 Hz. At what frequency does the astronomer observe the light emitted by oxygen atoms from the distant galaxy? A certain metal has a work function for photoelectric emission of phi delta = 3.50 eV. What is the threshold frequency...
1. Doppler shifts have been used to determine the rate of expansion of the universe. a) Given that a distant star is receding at a speed approximately 8% of the speed of light, determine the shift in the observed wavelength for a particular spectral line of 3 ps* that normally has a wavelength of 326 nm b) The FWHM of the spectral line mentioned in the previous problem is 53.8 pm. What is the surface temperature of the star?
1....
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50 x 1011 m. How long does it take for light to cover this distance? 2) Suppose a particular galaxy emits orange light with a frequency of 5.000 x 1024 Hz. If the galaxy is moving away from Earth with a speed of 3325 km/s, what is the frequency of the light when it is observed on Earth?
(a) An asteroid is in an elliptical orbit around a distant star. At its closest approach, the asteroid is 0.700 AU from the star and has a speed of 54.0 km/s. When the asteroid is at its farthest distance from the star of 36.0 AU, what is its speed (in km/s)? (1 AU is the average distance from the Earth to the Sun and is equal to 1.496 x 101 m. You may assume that other planets and smaller objects...
Questions [1] One difference between mechanical waves and EM waves is: only one needs a source, only one needs a medium to disturb. (2) If a color of visible light had a frequency of 621 THz, then the color is: red, orange, yellow, green, blue, violet. [3] Different types of EM waves are categorized by their: amplitude, energy, frequency, wave speed in a vacuum. [4] The prefix infra- means: lower than , higher than, about the same. [5] Any piece...
Figure 2 shows observations of the spectrum of another star, like the Sun but more distant, as seen from the Earth over the course of a year. The wavelength range shown is the same tiny portion of the spectrum shown in the bottom panel of the earlier figure, and the same two prominent iron lines are seen. From laboratory measurements of such atoms, it is known that the wavelengths of these two lines are hemit - 633.53 for the shorter...
E (t) = Eo cos (kz-wt) Where k is the wave-number and w is the angular frequency of the wave. Now some scientist tells you that a distant star has been observed to be green in color, with an observed frequency of fobserved 550 THz (terahertz, 1012). She also says that from other factors, it is known that the star should be emitting light with wavelength factual-1800 THz somewhere in the UV spectrum. They ask you to find two things...
ON THIS PAGE. SHOW WORK ON THE OPPOSITE PAGE VERS ON 20) Riding The Waves lculate the missing quantity. Hint: 1 Hz= 1 per second (= 1 sec ) = 3,600 /hour) Earthquake!! : An earthquake in Calexico, CA was felt in San Diego (210km distant) 28 seconds. The quake swayed houses @ twice per second = 2Hz. (1) The wave velocity was (2) The earthquake WAVELENGTH in km was: v= km/sec. 2= B) Thunder: After a lightning flash, you...
s. What is the wavelength of a neutron traveling at a speed of 4.15 km/s? 9. Explain why the following sets of quantum numbers never occur: 10. The energy of a photon is 3.34 X 10-19J. What is the wavelength of the light? What color is this? 11. A microwave oven heats by radiating food with microwave radiation, which is absorbed by the food and converted to heat. If the radiation wavelength is 12.5 cm, how many photons of this...
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