what is the difference in results for a 1 km diameter projectile traveling at 20 km/s striking the earth versus striking the moon versus striking Mars? Why is there a difference?

Q: A car can go as fast as 20 m/s over the top of a circular hill without being launched into the air.…

A: Given: Speed of car over the top of a circular hill without being launched into the air is 20ms.

Q: Suppose a planet with a mass of  2.24 ✕ 1025 kg  is orbiting a star with a mass of  3.55 ✕ 1031…

A: Given Data:- Mass of the planet is m=2.24×1025 kg Mass of the star is M=3.55×1031 kg Mean distance…

Q: average speed of the Apollo 11 spacecraft during the

A: average speed =total distance/total time taken

Q: Two planets in circular orbits around a star have speeds of v and 7v. (a) What is the ratio of the…

A:

Q: A planet of mass ?=6.65×1024 kg orbits a star of mass ?=1.55×1029 kg in a circular path. The radius…

A:

Q: We sent a probe out to orbit the planet Kerbal at a distance of 5.5x107m from the middle of the…

A: we know the distance between planet and orbit. that is r =5.5*107 m

Q: Let G be the universal gravitational constant and mp be the mass of the planet a satellite is…

A: since it contains more than one question, the solution for the first one is provided here.  please…

Q: A star is observed to undergo circular orbit around the black hole located at the centre of the…

A: We have a star which is undergoing a circular orbit of radius R=1000 AU=1.469*1014m with a time…

Q: Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011…

A:

Q: Newton’s version of Kepler’s third law is: P2 = 4 π2 / [G (M1 + M2)] × a3. The space shuttle orbits…

A: The space shuttle orbits 271 km above the earth

Q: Use Newton's Universal Gravitation Formula to determine the gravitational force of attraction…

A:

Q: Using canonical units, What is the circular velocity of a satellite orbiting the earth at a radius…

A: In canonical units, the gravitational constant G = 1 and the mass of the Earth is equal to 1.…

Q: An object of mass m is dropped from height h above a planet of mass M and radius R. Find an…

A:

Q: In this problem you will measure the gravitational constant in a series of “observational…

A: Given that  initial velocity vi 494 m/sec  ME = 5.95×1024 kg Ri = 6.41×106 m H = 12.7 km Question…

Q: An astronaut lands on a new, recently discovered planet in a different star system. The astronaut…

A: Given, Mass of planet,M=7.5×1023kg Acceleration due to gravity,g=12 m/s2

Q: Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 10…

A: mass of milky way (m) = 8×1011 solar masses = 8×1011×2×1030kg = 16×1041 kg distance (d) = 5.6×104…

Q: What is the magnitude of the gravitational acceleration at a height of two earth radius (2RE) above…

A: The apparent gravitational acceleration due to the change in height is given by g'=gRERE+h2 We have…

Q: sun rays take about 8 minutes to reach the Earth surface travelling at constant speed v= 3,0 * 10^8…

A:

Q: You are trapped on an earth-like planet with a mass of 7.00×1024 kg and a radius of 3000 km. You…

A: Escape velocity = 2*G*MRV = 2 * 6.7 *10-11 * 7*10243000000V= 17682.4 m/s

Q: When a falling meteor is at a distance 3.58times the radius of the Earth above theEarth’s surface,…

A: Given information: Here, R is the Earth’s radius, h is the meteor’s altitude above the Earth’s…

Q: If mass 1 and mass 3 are 5.00 kg, what is the total gravitational potential energy of the three…

A: The formula for the gravitational potential energy is: