Saplingplus For Freedman's Universe (single Term Access)
11th Edition
ISBN: 9781319078973
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 1, Problem 28Q
To determine
The number of hydrogen atoms that the Sun contains, when the Sun’s mass is
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Write the following measurements in scientific notation. All answers should be written up to hundredths place. Follow the rules in rounding off numbers.
Quantity
Measurement
Scientific notation
1. diameter of the
sun
1391400 km
2. Speed of light
2997792458 m/s
3. distance of the earth from the sun
149597870700 m
4. size of bacteria
0.0005 m
5. diameter of proton
0.000 000 000 001 mm
If the mass of the sun is 2 x 10^30 kg
The distance between Saturn and the sun is approximately 8.9 × 108 mi. The speed of light is approximately 1.9 × 105 miles per second.
How long does it take light to travel from the sun to Saturn? Answer in units of sec.
Chapter 1 Solutions
Saplingplus For Freedman's Universe (single Term Access)
Ch. 1 - Prob. 1CCCh. 1 - Prob. 2CCCh. 1 - Prob. 3CCCh. 1 - Prob. 1QCh. 1 - Prob. 2QCh. 1 - Prob. 3QCh. 1 - Prob. 4QCh. 1 - Prob. 5QCh. 1 - Prob. 6QCh. 1 - Prob. 7Q
Ch. 1 - Prob. 8QCh. 1 - Prob. 9QCh. 1 - Prob. 10QCh. 1 - Prob. 11QCh. 1 - Prob. 12QCh. 1 - Prob. 13QCh. 1 - Prob. 14QCh. 1 - Prob. 15QCh. 1 - Prob. 16QCh. 1 - Prob. 17QCh. 1 - Prob. 18QCh. 1 - Prob. 19QCh. 1 - Prob. 20QCh. 1 - Prob. 21QCh. 1 - Prob. 22QCh. 1 - Prob. 23QCh. 1 - Prob. 24QCh. 1 - Prob. 25QCh. 1 - Prob. 26QCh. 1 - Prob. 27QCh. 1 - Prob. 28QCh. 1 - Prob. 29QCh. 1 - Prob. 30QCh. 1 - Prob. 31QCh. 1 - Prob. 32QCh. 1 - Prob. 33QCh. 1 - Prob. 34QCh. 1 - Prob. 35QCh. 1 - Prob. 36QCh. 1 - Prob. 37QCh. 1 - Prob. 38QCh. 1 - Prob. 39QCh. 1 - Prob. 40QCh. 1 - Prob. 41QCh. 1 - Prob. 42QCh. 1 - Prob. 43QCh. 1 - Prob. 44Q
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- Use Einstein’s equation E = mc2 to compute the amount of the Sun’s mass in kilograms which is converted into other forms of radiation each day. Given: c = 2.9979 x 108 m/s.arrow_forwardA 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_forwardIn astronomy, distances are often expressed in light-years. One light-year is the distance traveled by light in one year. The distance to Alpha Centauri, the closest star other than our own sun that can be seen by the naked eye, is 4.3 light-years. Express this distance in meters.arrow_forward
- The Sun is much closer to Earth than are the nearest stars, yet it is not possible to measure accurately the diurnal parallax of the Sun relative to the stars by measuring its position relative to background objects in the sky directly. Explain why.arrow_forwardHow many degrees does the Sun move per day relative to the fixed stars? How many days does it take for the Sun to return to its original location relative to the fixed stars?arrow_forwardThe nearest star to our sun is Proxima Centauri, at a distance of 4.3 light-years from the Sun. A light-year is the distance that light travels in one year (365 days). How far away, in kilometers, is Proxima Centauri from the Sun?Express your answer using two significant figures.arrow_forward
- The Sun’s center is at one focus of Earth’s orbit. How far from this focus is the other focus, (a) in meters and (b) in terms of the solar radius, 6.96 *10^8 m? The eccentricity is 0.0167, and the semimajor axis is 1.50 * 10^11 m.arrow_forwardA planet with mass 8.07x1023 kg orbits a star with mass 1.18x1030 kg. The orbit is circular, and the distance from the planet to the sun is 121x106 km. What is the length of a year on this planet? Give your answer in earth years (1 earth year = 31,557,600 seconds).arrow_forwardA star has an element in its atmosphere that normally emits a line of frequency fs = 7.5 x 10^14 vib/s. If astronomers measure the frequency of this line to be fo = 7.7 x 10^14 vib/s, then how fast are the Earth and this star traveling relative to each other? Remember that the correct equation for the speed v is given by v = [(fo^2 - fs^2) / (fo^2 + fs^2)] c Remember fo^2 means "fo squared."arrow_forward
- The mass of the sun is 2.0 x 1030 kg, and the mass of a hydrogen atom is 1.67 x 10-27 kg. If we assume that the sun is mostly composed of hydrogen, how many atoms are there in the sun?arrow_forwardThe radius of the Earth's orbit is 1.50 1011 m and that of Mars is 2.28 1011 m. The star that this planet orbits is identical to our Sun. What is the orbital period of this planet?arrow_forwardEvery 30 days, the area swept in space by the planet is different. Every 30 days, the distance traveled by the planet is different. Every 30 days, the speed the planet is moving is the same Which of the following statements supports the claim that a planet travels around a star in an elliptical orbit? 1. 1 only 2. 2 only 3. 2 and 3 4. 1, 2, and 3arrow_forward
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