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42. The Mars Reconnaissance Orbiter (MRO) flies at an average altitude of 280 km above the martian surface. If its cameras have an angular resolution of 0.2 arcsec, what is the size of the smallest objects that the MRO can detect on the martian surface?

42. The Mars Reconnaissance Orbiter (MRO) flies at an average altitude of 280 km above the martian surface. If its cameras have an angular resolution of 0.2 arcsec, what is the size of the smallest objects that the MRO can detect on the martian surface?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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tial object with a given telesce would be saved by substituting a CCD for the photographic plate? 20. The VLBA uses an array of radio telescopes ranging across 8,000 km of Earth's surface from the Virgin Islands to Hawaii. a. Calculate the angular resolution of the array when radio astronomers are observing interstellar water molecules at a microwave wavelength of 1.35 cm. b. How does that resolution compare with the angular resolution of two large optical telescopes separated by 100 meters and operating as an interferometer at a visible wavelength of 550 nm? 41. When operational, the Space VLBI may have a baseline of 100,000 km. What will be the angular resolution when study- ing interstellar molecules emitting at a wavelength of 17 mm from a distant galaxy? 42. The Mars Reconnaissance Orbiter (MRO) flies at an average altitude of 280 km above the martian surface. If its cameras have an angular resolution of 0.2 arcsec, what is the size of the smallest objects that the MRO can detect on the martian surface? 43. At this writing, Voyagerlis about 140 astronomical units (AU) from Earth, continuing to record its environment as it departed the boundary of our Solar System. a. How far away is Voyager 1, in kilometers? b. How long do observational data take to come back to us from Voyager 1? c. How does Voyager l's distance from Earth compare with that of the nearest star (other than the Sun)?
Transcribed Image Text:tial object with a given telesce would be saved by substituting a CCD for the photographic plate? 20. The VLBA uses an array of radio telescopes ranging across 8,000 km of Earth's surface from the Virgin Islands to Hawaii. a. Calculate the angular resolution of the array when radio astronomers are observing interstellar water molecules at a microwave wavelength of 1.35 cm. b. How does that resolution compare with the angular resolution of two large optical telescopes separated by 100 meters and operating as an interferometer at a visible wavelength of 550 nm? 41. When operational, the Space VLBI may have a baseline of 100,000 km. What will be the angular resolution when study- ing interstellar molecules emitting at a wavelength of 17 mm from a distant galaxy? 42. The Mars Reconnaissance Orbiter (MRO) flies at an average altitude of 280 km above the martian surface. If its cameras have an angular resolution of 0.2 arcsec, what is the size of the smallest objects that the MRO can detect on the martian surface? 43. At this writing, Voyagerlis about 140 astronomical units (AU) from Earth, continuing to record its environment as it departed the boundary of our Solar System. a. How far away is Voyager 1, in kilometers? b. How long do observational data take to come back to us from Voyager 1? c. How does Voyager l's distance from Earth compare with that of the nearest star (other than the Sun)?
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