Physics
7th Edition
ISBN: 9780321929013
Author: Douglas C. Giancoli
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 22P
(a) How many seconds are there in 1.00 year? (b) How many nanoseconds are there in 1.00 year? (c) How many years are there in 1.00 second?
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How many years older will you be 1.00 gigasecond from now? (Assume a 365-day year.)
The micrometer (1 um) is often called the micron. (a) How many microns make up 3.8 km? (b) How many centimeters equal 3.8 um? (c)
How many microns are in 3.8 yd?
(a) Number
3.8x10^9
Units
microns or um
(b) Number
3.8x10^-4
Units
cm
(c) Number
3474720
Units
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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?
Chapter 1 Solutions
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