D. (a) How fast and in what direction must galaxy A be moving if an absorption...
D. (a) How fast and in what direction must galaxy A be moving if an absorption line found at 500 nm wavelength for a stationary galaxy is shifted to 450 nm for galaxy A? (b) How fast and in what direction is galaxy B moving if it shows the same line shifted to 650 nm?
The H α transition in hydrogen has a rest wavelength of 656.3 nm, coming from electrons moving between the n=2 and n=3 orbitals. You observe a star in which this transition shows a wavelength of 650 nm. How fast is the star moving? Is it moving toward you or away from you. Calculate the same for a galaxy where the wavelength of H α is 1100 nm.
If a galaxy is 570 Mly away from us, how fast do we expect it to be moving and in what direction?
If a galaxy is 165 Mly away from us, how fast do we expect it to be moving and in what direction? Answer in km/s
Astronomy Ranking Task: Doppler Shift Exercise #4 Description: An important line in the absorption spectrum of stars occurs at a wavelength of 656nm for stars at rest. Imagine that you study five stars (A-E) from Earth and discover that this absorption line is observed at the wavelength shown in the table below for each of the five stars. STAR Observed Wavelength of Absorption line A 650 nm B 663 nm C 656 nm D 657 nm E 646 nm...
1.2 1.0 0.8 0.6 0.4+ 0.2 0+ 300 350 400 450 500 550 600 650 700 Wavelength (nm) The absorption spectrum of a certain red dye is shown above. If a student analyzing the same concentration of this dye neglected to wipe fingerprints off the cuvette before placing it in the spectrophotometer, how would the absorption curve be affected? Absorbance
5(15%) Shown below are the absorption and fluorescence spectra for an antibody in pH 72 buffer: 350 400 450 500 550 600 650 700 750 Wavelength (nm) a. Which is the fluorescence spectrum, the red one or the blue one? Explain. b. What is the best wavelength at which to excite this sample in order to study its fluorescence? Explain. c. What is the best wavelength at which to monitor the fluorescence of this sample for quantitative purposes? Explain. d....
(a) At what wavelength will we observe a spectral line emitted at 500 nm by a star (b) At what wavelength will we observe the Ca II line (with rest wavelength 397.0 (c) A cloud of neutral hydrogen (HI) emits the so-called "21-cm line" (actually moving toward us at 100 km/s? nm) emitted by a galaxy receding at 60,000 km/s? 21.11 cm, at rest frequency 1420.2 MHz) while moving away at 200 km/s. At what frequency will we observe this...
The galaxy Palioxis is receding from the Milky Way at a speed of 0.35c. Another galaxy, Euthenia, is receding from the Milky Way in exactly the opposite direction, but at a speed of 0.45c. (a) For an observer in Palioxis, how fast is the Milky Way receding from them? Explain from them? Explain (b) For an observer in Palioxis, how fast is Euthenia receding f Imagine two muons, symbol μ-, moving towards each other with equal and opposite speeds. If...
The electronic absorption spectrum UI (Cr(NH3)6]3+ (aq) is shown in Figure 11.5. One of the observed peaks is centered at about 303 nm. 1.a. What is the approximate value of the wavelength for the two other peaks? Which one of these three peaks falls in the visible region of the electromagnetic spectrum? The wavelength at this peak is (Amax), and this transition accounts for the color of the complex ion in solution. The energy of the transition occurring at...