Gravitation - Potential Energy6. A 4500kg comet is moving at 25m/s when it is 5.5x1018m away from the sun. How fastwill the comet be moving when it is 3.3x10¹7m away from the sun? Circular Motion & Gravitation - Orbitsnativebus noitalfination4. Determine the orbital period of a mass that orbits 4.55x10m above the surface of theEarth.bloode

Question 4 Circular Motion Given Information :h=4.55x106 mMass of the earth =5.972x1024Radius of the…

Answered: Gravitation - Potential Energy 6. A…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 13.5CYU: Check Your Understanding Assume you are in a spacecraft in orbit about the Sun at Earth’s orbit, but...

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Assuming a circular orbit for the Sun about the center of the Milky Way galaxy, calculate its orbital Speed using the following information: The mass of the galaxy is equivalent to a single mass times that at the Sun (or located 30,000 ly away.
Check Your Understanding Assume you are in a spacecraft in orbit about the Sun at Earth’s orbit, but far away from Earth (so that it can be ignored). How could you redirect your tangential velocity to the radial direction such that you could then pass by Mars’s orbit? What would be required to change just the direction of the velocity?
Suppose an alien civilization has a space station in circular orbit around its home planet. The stations orbital radius is twice the planets radius, (a) If an alien astronaut has weight w just before launch from the surface, will she be weightless when she reaches the station and floats inside of it? (b) If not, what will be the ratio of her weight in orbit to her weight on the planets surface?
Unreasonable Results (a) Based on Kepler's laws and information on the orbital characteristics of the Moon, calculate the orbital radius for an Earth satellite having a period of 1.00 h. (b) What is unreasonable about this result? (c) What is unreasonable or inconsistent about the premise of a 1.00 h orbit?
Suppose astronomers find an earthlike planet that is twice the size of Earth (that is, its radius is twice that of Earth’s). What must be the mass of this planet such that the gravitational force (Fgravity) at the surface would be identical to Earth’s?
What is the gravitational acceleration close to the surface of a planet with a mass of 2ME and radius of 2RE where ME, and RE are the mass and radius of Earth, respectively? Answer as a multiple of g, the magnitude of the gravitational acceleration near Earths surface. (See Section 7.5.)
An object of mass m is located on the surface of a spherical planet of mass M and radius R. The escape speed from the planet does not depend on which of the following? (a) M (b) m (c) the density of the planet (d) R (e) the acceleration due to gravity on that planet
Mars has a Known radius of 3390 Km. Somebody threw a baseball at 990 Km/hr and it orbited the planer succesfuly. a) determine the period of orbit in secords b) Determine the gravitational field strength on Mars in N/Kg (how can I do that if I don´t have the mass of Mars)
A 2400-kg satellite is ina arcuar motion around a A planet.The satellite travels witha constant speed ofa Lele70 m/s. Radio us or tne circlar orbit is 8.92 x 10*M, w Determine Hthe magnitude of the gravitational force exerted on the satellite by the planet.
Two planets P, and P, orbit around a star S in circular orbits with speeds v, = 46.4 km/s, and v, = 57.4 km/s respectivel (a) If the period of the first planet P, is 710 years what is the mass, in kg, of the star it orbits around? kg (b) Determine the orbital period, in years, of P2. yr
Question- A plamet with four times the mass of the Earth has the Same surface pravitational acceleration what is the radius of this Planét, R,in ters of the foeios of the Earth, RE ? Options A.R= RE/4 B. R=4 RE C.R-2RE D. RンRE2 Quesfion-the soring constant Sor a spring- mass system urdergoing simple havmonic motion is doubled. If the total eneray remains unchanged, wht will happen to the Maxi mum amplilvde of the oscillation? Options A It will le multipi.ed by B. It will temain unchanged C. It will be multelyed by 2 D. It will be multiplged by 2 Question Two llanets or bit a Star. Planet 2 has an Or bital radius that is fout times the orbital radius ot Planet 1. Aow does the orbital peried of Planet 2 Compare with that of Plenet 1? A I= Ti B. T23 4T C, Tz= 8T; DTっ-2T.
What are the speed and altitude of a geosynchronous satellite orbitingMars? Mars rotates on its axis once every 24.8 [hours].Mass of Mars is 6.42 × 1023 [kg]. Radius of Mars is 3.37 × 103[km].

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