21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 4, Problem 34QP
To determine
The escape velocity at the surface of a very small asteroid.
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Chapter 4 Solutions
21st Century Astronomy
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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- A 0.872 km diameter asteroid will make a crater about 10 km in diameter. Let the asteroid have a density of 3000 kg/m3 and impact the surface at 22 km/sec. Assuming a spherical asteroid, what is the kinetic energy (in joule) of the asteroid? Convert the answer to megatons of TNT, where 1 megaton is about 4 × 1015 joule. For comparison, the most energetic weapon in the human arsenal is about 100 megatons.arrow_forwardWhat is the escape velocity of Jupiter if its mass is 1.898 x 10^27 kg, and its diameter is 1.42 x10^5 kmarrow_forwardTitan has a radius of 2500.0 km and a mass of 1.1 × 1023 kg. What is the escape velocity in km/s from Titan's exosphere, which begins at about 1400 km above the surface? The gravitational constant is G = 6.67 × 10-11 m3 kg-1 s-2.arrow_forward
- What is the escape velocity in km/s from Jupiter's exosphere, which begins about 995 km above the surface? Assume the Gravitational constant is G = 6.67 × 10-11 m3 kg-1 s-2 , and that Jupiter has a mass of 2.2e+27 kg and a radius of 71.0 × 103 km.arrow_forwardThe Double Asteroid Redirection Test (DART) is a NASA mission that aims to redirect an asteroid by colliding with it. The target of DART is Dimorphos: a small asteroid that orbits Didymos, a larger asteroid, every 11.9 hours in a circular orbit. This binary system orbits the sun every 770 days in an elliptical orbit which crosses the orbits of both Earth and Mars. It is estimated that the impact of DART will change the velocity of Dimorphos by 0.4 mm s-1. A. How far would an object with a velocity of 0.4 mm s-1 travel in one year? You should take a year to be 365.25 days. B. The estimate of the change of velocity assumes that DART simply sticks to the surface of Dimorphos. Instead, suppose that the impact also causes a large amount of material to be thrown back out into space. How would this effect the estimate of the change of velocity?arrow_forwardAn asteroid is in a highly eccentric elliptical orbit around the Sun. The period of the asteroid’s orbit is 90 days. Which of the following statements is true about the possibility of a collision between this asteroid and the Earth? (a) There is no possible danger of a collision. (b) There is a possibility of a collision. (c) There is not enough information to determine whether there is danger of a collision.arrow_forward
- college.com/course.html?courseld3D16876585&OpenVellumHMAC3eca93c2c656be349bee6a952b986809b#10001 E Reading A NASA satellite has just observed an asteroid that is on a collision course with the Earth. The asteroid has an estimated mass, based on its size, of 5 x 10°kg. It is approaching the Earth on a head- on course with a velocity of 810 m/s relative to the Earth and is now 4.0x106 km away. Constants Periodic Table Part A With what speed will it hit the Earth's surface, neglecting friction with the atmosphere? Express your answer using two significant figures. ? m/s Submit Request Answer Next > Provide Feedback P Pearson 12:32 AM Copyright © 2021 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy Permissions Contact Us | 12/4/2021 16°E Clear ☆国arrow_forwardEarth’s escape velocity is 11 km/s at its surface. An unknown planet has a mass that is 100 times Earth’s mass and a radius that is 4 times Earth’s radius. Calculate the escape velocity at the surface of an unknown planet.arrow_forwardThe escape velocity from the surface of planet A is 5700 m/s. Planet B has the same mass but the radius is 1/3 that of planet What is the escape velocity from the surface of planet B in m/s?arrow_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_forwardIf mars has a mass of 6.4 x 1023 kg and a radius of 3.39 x 106m. What is the escape speed needed from the surface of mars?arrow_forwardthe escape speed from the surface of the earth is 11.2 km/s. What is the escape speed from a planet that has twice the density of Earth and twice the radiusarrow_forward
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