Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 5, Problem 11QAP
To determine
The basic requirements for the nuclear reactions.
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What is critical density? What is its estimated value?
The gravitational collapse time for the Sun is a constraint on the timescale for the formation of the Solar System: Using the mass of the Sun and a 6.67 X10-11 in S.I. units (m, kg, sec) as the value for G, calculate the gravitational collapse time in millions of years for the mass of the Sun in a nebula with radius 4 light years. Recall that:
tgravity=R3GM−−−√tgravity=R3GM
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The radius of Jupiter is about 69.0 × 103 km. The radius of the Sun is about 70.0 × 104 km. How many Jupiter volumes would fit inside the Sun's volume?
Chapter 5 Solutions
Understanding Our Universe
Ch. 5.1 - Prob. 5.1CYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5.6 - Prob. 5.6CYUCh. 5 - Prob. 1QAPCh. 5 - Prob. 2QAPCh. 5 - Prob. 3QAPCh. 5 - Prob. 4QAP
Ch. 5 - Prob. 5QAPCh. 5 - Prob. 6QAPCh. 5 - Prob. 7QAPCh. 5 - Prob. 8QAPCh. 5 - Prob. 9QAPCh. 5 - Prob. 10QAPCh. 5 - Prob. 11QAPCh. 5 - Prob. 12QAPCh. 5 - Prob. 13QAPCh. 5 - Prob. 14QAPCh. 5 - Prob. 15QAPCh. 5 - Prob. 16QAPCh. 5 - Prob. 17QAPCh. 5 - Prob. 18QAPCh. 5 - Prob. 19QAPCh. 5 - Prob. 20QAPCh. 5 - Prob. 21QAPCh. 5 - Prob. 22QAPCh. 5 - Prob. 23QAPCh. 5 - Prob. 24QAPCh. 5 - Prob. 25QAPCh. 5 - Prob. 27QAPCh. 5 - Prob. 28QAPCh. 5 - Prob. 29QAPCh. 5 - Prob. 30QAPCh. 5 - Prob. 31QAPCh. 5 - Prob. 32QAPCh. 5 - Prob. 34QAPCh. 5 - Prob. 35QAPCh. 5 - Prob. 36QAPCh. 5 - Prob. 37QAPCh. 5 - Prob. 38QAPCh. 5 - Prob. 39QAPCh. 5 - Prob. 40QAPCh. 5 - Prob. 41QAPCh. 5 - Prob. 42QAPCh. 5 - Prob. 43QAPCh. 5 - Prob. 44QAPCh. 5 - Prob. 45QAP
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- The dust in the dust clouds in intersteller space consists of? a. atomic gas b. molecular gas c. tiny solid grains d. pieces of ice ranging from several meters to a kilometer in diameterarrow_forwardIf the Orion Nebula is 8 pc in diameter and has a density of about 6.0 108 hydrogen atoms/m3, what is its total mass? (Notes: The volume of a sphere is 43r3; 1 pc = 3.1 1016 m; the mass of a hydrogen atom is 1.7 1027 kg.)arrow_forwardDuring free-fall collapse, what keeps the collapsing clouds internal temperature from increasing?arrow_forward
- A spacecraft has launched into low earth orbit and must transit to Geostationary Orbit. Calculate the best-case delta-V required for this. LEO holding orbit: Altitude: 250 km (circular orbit) Inclination: 28.5 degreesarrow_forwardJupiters moon, lo, loses about 870.0 kg/s of sulfur dioxide to Jupiters magnetosphere. Sulfur dioxide currently makes up 0.83% of lo's mass. How long in years until lo runs out of sulfur dioxide at the current loss rate? Lo has a mass of 1 x 1023kg and there are 3.15x107 seconds in a year.arrow_forwardThe gravitational collapse time for the Sun is a constraint on the timescale for the formation of the Solar System: Using the mass of the Sun and a 6.67 X10-11 in S.I. units (m, kg, sec) as the value for G, calculate the gravitational collapse time in millions of years for the mass of the Sun in a nebula with radius 4 light years. Recall that: tgravity = square root (R^3/ GM)arrow_forward
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