Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 15, Problem 9P
To determine
The time required for solar wind to reach from Sun to Earth.
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The velocity of the solar wind is roughly 400 km/s. How long does it
take to travel from the sun to Earth?
Gusts of the solar wind travel as fast as 1000 km/s. How many days would the solar wind take to reach Earth at this speed? (Note: The average distance to the Sun is 1.496 ✕ 108 km.)
What is the sun's mass?
Chapter 15 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 15 - What produced the helium now present in the Sun’s...Ch. 15 - What produced the iron and heavier elements like...Ch. 15 - What evidence can you cite that disks of gas and...Ch. 15 - According to the solar nebula theory, why is the...Ch. 15 - Why does the solar nebula theory predict that...Ch. 15 - Prob. 6RQCh. 15 - If you visited another planetary system, would you...Ch. 15 - Why is almost every solid surface in our Solar...Ch. 15 - What is the difference between condensation and...Ch. 15 - Why don’t Terrestrial planets have rings like the...
Ch. 15 - How does the solar nebula theory help you...Ch. 15 - How does the solar nebula theory explain the...Ch. 15 - What does the term differentiated mean when...Ch. 15 - What processes cleared the nebula away and ended...Ch. 15 - Why would astronomically short lifetime of gas and...Ch. 15 - Prob. 16RQCh. 15 - What evidence can you cite that planets orbit...Ch. 15 - Why is the existence of “hot Jupiters” puzzling?...Ch. 15 - How Do We know? The evidence is overwhelming in...Ch. 15 - How Do We know? How can scientists know anything...Ch. 15 - If you could visit another planetary system while...Ch. 15 - Prob. 2DQCh. 15 - If the solar nebula hypothesis is correct, do you...Ch. 15 - If you observed the Solar System from the nearest...Ch. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Suppose that Earth grew to its present size in 1...Ch. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 1LTLCh. 15 - Why do astronomers conclude that the surface of...Ch. 15 - Prob. 3LTL
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- The incoming solar energy for the planet is 245 W/m2. What is the outgoing energy from the surface (arrow c)?arrow_forwardAssuming it were possible, how long would it take a car traveling at 60 miles per hour to leave the solar system?arrow_forwardStep-by-step, explain how energy flows from the center of the Sun to Earth.arrow_forward
- Even if the Earth's orbit were circular, we would still have seasons. The reason is that the seasons are actually caused by the tidal influence of the Moon the Sun would still be off-center and our distance from it would still vary the Sun would still have an annual cycle of storms and sunspots the seasons are actually determined by the tilt of the Earth's axisarrow_forwardPlease give the answer on units of solar masses, thank youarrow_forwardThe distance from the Earth to the sun is 1.496x1011 m. A solar flare occurs on the sun’s surface on Wednesday morning at 10:24 AM. At what time and on what day will electromagnetic radiation from the flare reach the Earth.arrow_forward
- If you get a slope of 15 degrees per day for sunspot motion from Earth, what are the synodic and sidereal periods of rotation?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_forwardThe Sun has a radius of 6.955×105 km and a mass of 1.989×1030 kg. What is the density of the Sun? Answer: ____ kg/m3 How does this compare to the density of Earth (5500 kg/m3)? Answer: ____ times the density of Eartharrow_forward
- For a satellite launched to an altitude of 800 km, is there any significant difference to the lifetime depending on the phase of the solar cycle at launch? Explain your answer.arrow_forwardWhich of the following incidents will cause the solar constant of a planet to decrease? Select all that apply: a. the planet moves farther from the sun b. the planet’s albedo increases c. the planet’s atmosphere thins d. the sun’s total energy output decreasesarrow_forwardExplain the tidal hypothesis.arrow_forward
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