Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134450278
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 1, Problem 1P
To determine
The distance travelled by light in one second, and to determine the location where it would reach in one second if its starting point is Houston.
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The speed of light is 2.998*10^8 m/s. How far does light travel in 7.0 μs ? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.
The speed of light is 2.998*10^8 m/s. How far does light travel in 6.0 μs? Set the math up. But don't do any of it. Just leave your answer as a math expression. be sure your answer includes all the correct unit symbols.
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Chapter 1 Solutions
Astronomy Today (9th Edition)
Ch. 1 - Prob. 1DCh. 1 - Prob. 2DCh. 1 - Prob. 3DCh. 1 - Prob. 4DCh. 1 - Prob. 5DCh. 1 - Prob. 6DCh. 1 - Prob. 7DCh. 1 - Prob. 8DCh. 1 - Prob. 9DCh. 1 - Prob. 10D
Ch. 1 - Prob. 11DCh. 1 - Prob. 12DCh. 1 - Prob. 13DCh. 1 - Prob. 14DCh. 1 - Prob. 15DCh. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - Prob. 9MCCh. 1 - Prob. 10MCCh. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 9P
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- One way to express the speed of light is to say that light travels at about 1 foot per nanosecond. Suppose you are using a laser rangefinder to measure the length of a 100-yard football field. How long does it take the laser light to leave your range finder, bounce off an object at the opposite end of the field, and return to the range finder? 150 nanoseconds 300 nanoseconds 600 nanoseconds 1200 nanosecondsarrow_forwardLight travels at 2.9979 x 10^10 cm/s. How far would light travel in a year? (USE SYMBOL ^ FOR EXPONENT. ROUND OFF ANSWER TO FOUR DECIMAL PLACES)arrow_forwardI'm having trouble completing the problem I've attached a picture of below. I was able to find the the Earth's average speed in m/s relative to the sun by doing (2pi*(1.49x10^11))/31536000. But I am struggling to find the average velocity for the same thing over a period of one year in m/s. I was wondering how to calculate that? I've tried doing the (final velocity-initial velocity)/2 but the program doesn't accept my answer when using that approach.arrow_forward
- The speed of light in space is 3.00 x 108 m/s. The time for light from the Sun to reach Earth is 8 minutes 20 seconds. Therefore, the distance from the Sun to Earth is 2.40 x 109 m. 8.64 x 1012 m. 1.50 x 1011 m. 2.25 x 109 m.arrow_forwardThe intensity of light from a central source varies inversely as the square of the distance. If you lived on a planet only half as far from the Sun as our Earth, how would Sun’s light intensity compare with that on Earth? How about a planet 10 times farther away than Earth?arrow_forwardHow long does it take light to travel from the Earth to the Moon? The speed of light is 2.998×105 km/s and the Moon is 3.844×105 km away from Earth, on average.arrow_forward
- How much time does it take light to travel from the moon to the earth, a distance of 384,000 km? (a) Light from the star Sirius takes 8.61 years to reach the earth. What is the distance from earth to Sirius in kilometers?arrow_forwardLight travels 3 x 10^8 meters every seconds (after rounding). That number in words is: 30 3,105 310 300,000,000 None of the Abovearrow_forward17. The distance from earth to the nearest star is about 4 x 1016 meters. How long would it take a radio signal traveling at the speed of light, 3.0 x 108 m/s, to make a one-way trip to this star? 300 years 1 x 108 years 4 x 104 years 4 years 2 x 103 yearsarrow_forward
- How far does light travel in one second? If this light were leaving Houston, what location (on Earth or beyond) would it reach in one second?arrow_forwardApproximately how long would it take a telephone signal to Travel 480 km ( 1km= 1000m) from earth to the international space station? ( telephone signals travel at the speed of light).arrow_forwardA light-year is the distance that light can travel in one year. Similarly, we can define a light-second, light-day, etc. as the distance that light can travel in other time intervals. Calculate the distance represented by each of the following: (Assume that the speed of light is 3 x 10^8m/s) 5 light-minutes 6 light-days 6 light-days, but this time answer in miles (enter just the number with no units)arrow_forward
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