Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 1, Problem 64P
(a)
To determine
To write: The number of kilometers in a mile.
(b)
To determine
To write: The weight of water in pounds.
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The speed of light is 2.998 × 108 m/s. One light-year is the distance that light travels in one year. One Astronomical Unit (AU) is 1.50 × 108 km.
(a) How many meters are in 1.0 light-year?
(b) How many meters are in 1.000 light-year?
(c) How many AU are in 1.00 light-year?
(d) What is the speed of light in AU/h?
The speed of light in a vacuum is 2.9983108 m/s. What is its speed in (a) km/h; (b) mi/min?
An astronomical unit (AU) is equal to the average distance from Earth to the Sun, about 92.9 × 106 mi. A parsec (pc) is the distance at which a length of 1 AU would subtend an angle of exactly 1 second of arc (the figure). A light-year (ly) is the distance that light, traveling through a vacuum with a speed of 186000 mi/s, would cover in 1.0 year. Express the Earth–Sun distance in (a) parsecs and (b) light-years.
Chapter 1 Solutions
Physics for Scientists and Engineers
Ch. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 8PCh. 1 - Prob. 9PCh. 1 - Prob. 10P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- One student uses a meterstick to measure the thickness of a textbook and obtains 4.3 cm 0.1 cm. Other students measure the thickness with vernier calipers and obtain four different measurements: (a) 4.32 cm 0.01 cm. (b) 4.31 cm 0.01 cm, (c) 4.24 cm 0.01 cm, and (d) 4.43 cm 0.01 cm. Which of these four measurements, if any, agree with that obtained by the first student?arrow_forwardIf the DNA strand in a molecule could be stretched out, it would have a length on the order of 2.0 m. What would this be in feet and inches?arrow_forwardRoughly how many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of a human?arrow_forward
- A light-year is a unit of distance corresponding to the distance light can travel in a vacuum in 1 year. If the speed of light is 3.0 x 108 m/s, what is the length of a light-year in: (a) km? (b) Em?arrow_forwardThe speed of light is now defined to be 2.997 924 58 × 108 m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.arrow_forwardA light-year is the distance light travels in one year at speed =2.998*10^8m/s a) How many inches are there in 1.00 light-year? (b) The parsec is an astronomical unit of length approximately equal to 3.08×1016 m. How many light-years are there in 1.00 parsec?arrow_forward
- A light-year (ly) is the distance light travels in one year (at speed of 2.998 ×× 108 m/sm/s ). An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 ×× 108 km. 1 year = 3.156 ×× 107 s. How many meters are there in 1.70 ly? Express your answer using three significant figures. Express in scientific notation! 1.70 ly = _________________m How many AU are there in 1.70 ly light-year? Express your answer using three significant figures. Express in scientific notation! 1.70 ly = _________________AUarrow_forwardA light-year is a measure of the astronomical distance that light traverses in a vacuum in 1 year. (a) How many kilometers does light traverse in 1 ly? km (b) What is the speed of light c in terms of ly per year. ly/y (c) Express your answer from (b) in terms of feet per nanosecond. ft/nsarrow_forwardThe speed of light is now defined to be 2.997 924 58 x108 m/s.Express the speed of light to (a) three significant figures,(b) five significant figures, and (c) seven significant figures.arrow_forward
- The speed of light is 3.00 x10^8 meters per second. Express this constant in miles per day.arrow_forwardA light-year is the distance light travels in one year (at speed 2.998 x 10^8 m/s). (a) How many meters are there in 1.00 light-year? (b) An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 X 10^8 km. How many AU are there in 1.00 light-year?arrow_forwardA light-vear is the distance that light travels in one year. The speed of light is 3.00 x 108 m/s. How many miles are there in one light-year? (1 mi = 1609 m, 1 y =365 d) 5.88 x 1015 mi O 9.46 x 1012 mi 5.88 x 1012 mi O 9,46 x 1015 miarrow_forward
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