21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
6th Edition
ISBN: 9780393874921
Author: PALEN
Publisher: Norton, W. W. & Company, Inc.
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Chapter 12, Problem 42QP
To determine
The density of the comet Halley and compare it to that of water.
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To model a moon in the solar system, consider a sphere with radius R
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on the surface of the sphere. Calculate gm for these values of R and p:
R = 2.0×106 m; p= 2.7x103 kg/m^3;
(in m/s^2)
OA:
OB:
1.509 2.007
OC:
2.669
OD:
3.549
OE:
OF:
4.721 6.279
OG:
8.351
OH:
1.111x101
Jupiter is approximately a sphere of radius 6.99 x 107 m.(a) What is its circumference in kilometers?(b) What is its surface area in square kilometers?(c) What is its volume in cubic kilometers?
Needs Complete typed solution with 100 % accuracy.
The Tunguska asteroid is estimated to have had a diameter of 50 m, and to have produced an explosion equivalent to 10 megatons of TNT (1 megaton = 4.2 x 1015 joules). Assume that the asteroid was a sphere with density 2 g/cm3. Using the kinetic energy formula K = ½ mv2, where m is the mass and v is the speed, to estimate the speed of the asteroid. Assume that all kinetic energy is converted into the energy of the explosion.
Give your answer in km/s with one significant figure.
Chapter 12 Solutions
21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
Ch. 12.1 - Prob. 12.1CYUCh. 12.2 - Prob. 12.2CYUCh. 12.3 - Prob. 12.3ACYUCh. 12.3 - Prob. 12.3BCYUCh. 12.4 - Prob. 12.4CYUCh. 12.5 - Prob. 12.5CYUCh. 12 - Prob. 1QPCh. 12 - Prob. 2QPCh. 12 - Prob. 3QPCh. 12 - Prob. 4QP
Ch. 12 - Prob. 5QPCh. 12 - Prob. 6QPCh. 12 - Prob. 7QPCh. 12 - Prob. 8QPCh. 12 - Prob. 9QPCh. 12 - Prob. 10QPCh. 12 - Prob. 11QPCh. 12 - Prob. 12QPCh. 12 - Prob. 13QPCh. 12 - Prob. 14QPCh. 12 - Prob. 15QPCh. 12 - Prob. 16QPCh. 12 - Prob. 17QPCh. 12 - Prob. 18QPCh. 12 - Prob. 19QPCh. 12 - Prob. 20QPCh. 12 - Prob. 22QPCh. 12 - Prob. 23QPCh. 12 - Prob. 24QPCh. 12 - Prob. 25QPCh. 12 - Prob. 26QPCh. 12 - Prob. 27QPCh. 12 - Prob. 28QPCh. 12 - Prob. 29QPCh. 12 - Prob. 30QPCh. 12 - Prob. 31QPCh. 12 - Prob. 32QPCh. 12 - Prob. 33QPCh. 12 - Prob. 34QPCh. 12 - Prob. 35QPCh. 12 - Prob. 36QPCh. 12 - Prob. 37QPCh. 12 - Prob. 38QPCh. 12 - Prob. 39QPCh. 12 - Prob. 40QPCh. 12 - Prob. 41QPCh. 12 - Prob. 42QPCh. 12 - Prob. 43QPCh. 12 - Prob. 44QP
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- Give me the solution for the problem. The correct answers are: A: -1.4 x 10-6 km/h. The comet's speed has been decreased by this amount. Hence, the effect is negligble. B: -6.7 x 10-8 km/h. The Earth's speed has been decreased by this amount. Also, the effect is negligble.arrow_forwardA typical comet contains 10¹3 kg of water ice. How many comets would be needed to account for the 2 x 10²¹ kg of water presently found on our planet?arrow_forwardThe eccentricity of an asteroid's orbit is 0.0331, and the semimajor axis is 1.61 x 1011 m. The Sun's center is at one focus of the asteroid's orbit. (a) How far from this focus is the other focus in meters? (b) What is the ratio of this distance to the solar radius, 6.96 x 108 m? (a) Number Units (b) Number Unitsarrow_forward
- Consider a spherical asteroid with radius 28.2 km and mass of 5.69 x 1018 kg. The acceleration due to gravity at the surface of the asteroid is ? Possibly useful: Fg=Gm1m2/r2 G=6.67 x 10-11 Nm2/kg2arrow_forwardYou may enter answers in scientific notation as shown: 1.23 x 105 = 1.23e5 Fill out each quantity for the interaction between the sun and the asteroid: F = N m³/kg s² kg G = M = m = r 11 kg > What is the force between the asteroid and the sun? N earth data mass: 5.97 x 1024kg radius: 6.37 x 106m 1.50 x 1011m sun data mass: 1.99 x 103⁰kg radius: 6.96 x 108m 8.54 x 101m asteroid data mass: 6.03 x 1020 kg radius: 2.9 x 10³marrow_forwardCalculate the density of the moon by assuming it to be a sphere of diameter 3475 km and having a mass of 7.35 × 1022 kg. Express your answer in g/cm3.arrow_forward
- Titan has a radius of 2400.0 km and a mean density of 2.2 g/cm3. Earth's Moon has a radius of 1737.0 km and a mean density of 3.4 g/cm3. What is the ratio of gravitational acceleration on Titan compared to that on the Moon? The gravitational constant is G = 6.67 × 10-11 m3 kg-1 s-2arrow_forwardWhat is the escape velocity from an asteroid with a diameter of 100 km and an average relative density of 2.5? (The solution is 59 m/s)arrow_forwardWhat is the density of Jupiter’s moon Europa (see Appendix G for data on moons)?arrow_forward
- Suppose the average mass of each of 20,000 asteroids in the solar system is 1017 kg. Compare the total mass of these asteroids to the mass of Earth. Assuming a spherical shape and a density of 3000 kg/m3, estimate the diameter of an asteroid having this average mass.arrow_forwardWhat is the escape speed from an asteroid of diameter 315 kmkm with a density of 2540 kg/m3kg/m3? Express your answer in meters per second. vv = nothing m/sm/sarrow_forwardA)At what altitude would a geostationary sattelite need to be above the surface of Mars? Assume the mass of Mars is 6.39 x 1023 kg, the length of a martian solar day is 24 hours 39minutes 35seconds, the length of the sidereal day is 24hours 37minutes 22seconds, and the equatorial radius is 3396 km. The answer can be calculated using Newton's verison of Kepler's third law.arrow_forward
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