The light year (ly) is a unit of distance commonly used in astronomy. It is defined as the distance traveled by light in a vacuum in one year. Express 1 ly in km.
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A: The speed of light is given as c=2.99792458×108 m/s
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A: Given:- t= 864 yr 1 year= 365.25 days
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Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…
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Q: How long (in seconds) will it take a radio signal to travel 3.08 x1010 m through space?
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Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…
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Q: How far does light travel in one year? [This distance is known as a light-year (ly) and is used in…
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- The speed of light in free space has been measured to be 2.99792458 x 108-m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.the sun is about 93000000miles from earth and sunlight travels at 1.079*109 km/h. how many minutes are requried for sunlight to travel from the sun to earth?The speed of light in free space has been measured to be 2.99792458 × 108 m/s. (A) 3 Significant Figures (B) 5 Significant Figures (C) 7 Significant Figures
- In astronomy, distances are often expressed in light- years. One light-year is the distance traveled by light in one year. If the distance to a star is 4.9 light-years, what is this distance in meters? (There are 365.25 days in one year.) Number i UnitsThe speed of light in free space has been measured to be 2.99792458 x 108-m/s.Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.Current Attempt in Progress In astronomy, distances are often expressed in light-years. One light-year is the distance traveled by light in one year. If the distance to a star is 4.2 light-years, what is this distance in meters? (There are 365.25 days in one year.) Number i Units
- On Dec 5, 2022, scientific history was made at the Lawrence Livermore National Laboratory (LLNL) in Livermore, California when nuclear fusion was achieved when the 192 lasers deposited about 2 Megajoules (MJ) of energy into a frozen pea sized deuterium-tritium pellet and ignited the pellet through nuclear fusion to release 3 MJ of energy. The metric prefix mega means million (10^6). a) How much mass (kg) would be required to release 1 MJ of energy?How many meters are there in 3.2 light year (s), if the speed of light is 3 x 108 m/s. This number may be very large so do not round or truncate your number. Answer:A solar flare occurs in the surface of the sun on Monday morning at 11:45 AM. The sun is 1.496 x 108 kilometers away and light travels at 300 000 km per second. A. How long thereafter will the light beam reach the earth? B. What time of the day will the beam of light reach occurred at 11:45? C. If the solar flare re occurred at 1:30 pm when will the light from the flare reach earth?
- The speed of light to five significant figures is 2.9979 * 108m>s.What is the speed of light to three significant figures?light in a vacuum travels at a speed of 3.00x10^8 m per s. Pluto's average distance from the sun is 3.6 billion miles. How many minutes does it take sunlight to reach Pluto?A person on earth communicating via radio transmission with an astronaut on the moon asks a question. At the time of transmission, the moon is 3.843.84 × 10105 km from the earth, and the speed of radio waves is 3.003.00 × 10108 m/s. How long must the person on earth wait for a response if the astronaut answers 5.005.00 s after the message is received?