21ST CENT.AST.W/WKBK+SMARTWORK >BI<
6th Edition
ISBN: 9780393415216
Author: Kay
Publisher: NORTON
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Chapter 4, Problem 7QP
To determine
Which factor the stars or planet is measured by astronomers by using the connection between gravity and orbits.
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Check out a sample textbook solutionStudents have asked these similar questions
The rotation of the planets around the sun is governed by:
A. The gravitational field of the sun.
B. The gravity of the stars.
C. The heat energy of the sun.
D. The gravity of the other planets of the solar system.
Kelper's second law relates between them:
O A. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the
sun.
OB. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the
earth.
C. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the
moon.
OD. The time period of rotation of the orbiting planet around the earth and the average distance of the planet to
the sun.
19.
According to Isaac Newton, the value of the constant, k, in Kepler's Third Law (P2 = ka3) is dependent on which one of the following quantities for objects within the Solar System?
a.
The distance between the Sun and its planet.
b.
The mass of the planet.
c.
The electric charge of the Sun.
d.
The mass of the Sun.
2. An unknown planet was accidentally discovered by NASA. It has a mean distance of
2.15 E11 meters from the sun. Assuming it has a mass of 6.02 E24 kg, how long (in
Earth Years) will it take for the said planet to revolve around the sun?
Chapter 4 Solutions
21ST CENT.AST.W/WKBK+SMARTWORK >BI<
Ch. 4.1 - Prob. 4.1ACYUCh. 4.1 - Prob. 4.1BCYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4.4 - Prob. 4.4CYUCh. 4 - Prob. 1QPCh. 4 - Prob. 2QPCh. 4 - Prob. 3QPCh. 4 - Prob. 4QPCh. 4 - Prob. 5QP
Ch. 4 - Prob. 6QPCh. 4 - Prob. 7QPCh. 4 - Prob. 8QPCh. 4 - Prob. 9QPCh. 4 - Prob. 10QPCh. 4 - Prob. 11QPCh. 4 - Prob. 12QPCh. 4 - Prob. 13QPCh. 4 - Prob. 14QPCh. 4 - Prob. 15QPCh. 4 - Prob. 16QPCh. 4 - Prob. 17QPCh. 4 - Prob. 18QPCh. 4 - Prob. 19QPCh. 4 - Prob. 20QPCh. 4 - Prob. 21QPCh. 4 - Prob. 22QPCh. 4 - Prob. 23QPCh. 4 - Prob. 24QPCh. 4 - Prob. 25QPCh. 4 - Prob. 26QPCh. 4 - Prob. 27QPCh. 4 - Prob. 28QPCh. 4 - Prob. 29QPCh. 4 - Prob. 30QPCh. 4 - Prob. 31QPCh. 4 - Prob. 32QPCh. 4 - Prob. 33QPCh. 4 - Prob. 34QPCh. 4 - Prob. 35QPCh. 4 - Prob. 36QPCh. 4 - Prob. 37QPCh. 4 - Prob. 38QPCh. 4 - Prob. 39QPCh. 4 - Prob. 40QPCh. 4 - Prob. 41QPCh. 4 - Prob. 42QPCh. 4 - Prob. 43QPCh. 4 - Prob. 44QPCh. 4 - Prob. 45QP
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- When Sedna was discovered in 2003, it was the most distant object known to orbit the Sun. Currently, it is moving toward the inner solar system. Its period is 10,500 years. Its perihelion distance is 75 AU. a. What is its semimajor axis in astronomical units? b. What is its aphelion distance?arrow_forwardThe diameter of the Moon across its equator is 3476 kilometers. If a kilometer equals 0.6214 miles, what is the Moon’s diameter in miles?arrow_forwardThe apparent change of the position of a star due to the Earths orbiting the Sun is called ___. (18.1)arrow_forward
- What evidence can you cite that planets orbit other stars?arrow_forwardSince 1995, hundreds of extrasolar planets have been discovered. There is the exciting possibility that there is life on one or more of these planets. To support life similar to that on the Earth, the planet must have liquid water. For an Earth-like planet orbiting a star like the Sun, this requirement means that the planet must be within a habitable zone of 0.9 AU to 1.4 AU from the star. The semimajor axis of an extrasolar planet is inferred from its period. What range in periods corresponds to the habitable zone for an Earth-like Planet orbiting a Sun-like star?arrow_forwardWhy is it difficult to detect planets orbiting other stars?arrow_forward
- How Do We Know? Why is it important that a hypothesis make testable predictions?arrow_forwardAccording to the solar nebula theory, why is the Earth’s orbit nearly in the plane of the Sun’s equator?arrow_forwardThe first planets found in a pulsar system were found to have a mass of about a. 1 Earth mass. b. 3–4 Earth masses. c. 20 Earth masses. d. 100 Earth masses. e. zero, because planets have not been found around pulsars.arrow_forward
- 1. The average orbital distance of Mars is 1.52 times the average orbital distance of the Earth. Knowing that the Earth orbits the sun in approximately 365 days, use Kepler's law of harmonies to predict the time for Mars to orbit the sun.arrow_forward2. The planet Jupiter has an orbital period of 4332.8 days, and its greatest distance (aphelion distance) from the Sun is 5.455 AU {where 1 AU = 1 Astronomical Unit = 1.496x10'' m}. The mass of the planet Jupiter is 1.898x1027 kg and the mass of the Sun is 1.988x1030 kg. {G = 6.67x10'" Nm/kg?) (a) Calculate the perihelion distance (closest distance) in Astronomical Units (AU) of the planet Jupiter from the Sun. (b) Calculate the eccentricity of planet Jupiter's orbit around the Sun. (c) Calculate the smallest speed of planet Jupiter around the Sun in km/s. At what point in Jupiter's orbit does Jupiter have its smallest speed?arrow_forwardDirection: Complete the table below. Calculate the problem using the Laws of Planetary Motion based on the given basic planetary data below. F Earth Mars Saturn Uranus Neptune Jupiter 1. 3. Mean Distance(r) Period of 1.496 x 108 44.97x108 2.28 x 108 14.27x108 2. 4. Revolution (T) 365.2 days 1.88 yrs. 11.86 yrs. 84 yrs. Using the Earth as reference, determine the mean distance(r) or the Period of revolution (T) of each planet. Here is the formula in the Law of Period. (T₁)² (r₁)² (T₂)² (r₂)² = 1. Find the Mean distance of Jupiter. 2. Find the Period of Saturn 3. Find the mean distance of Uranus. 4. Find the Period of Neptune.arrow_forward
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