The tidal acceleration due to the moon at the surface of the earth is approximately 2.44×10^−5 ms−2 If the moon was closer to the earth by a factor of 0.9. What then would the tidal acceleration be.

Four uniform spheres, with masses ma 65 kg, MB = 10 kg, mc 190 kg, and mp notation, what is the net gravitational force on sphere B due to the other spheres? - = 45 kg, have (x, y) coordinates of (0, 50 cm), (0, 0), (−80 cm, 0), and (40 cm, 0), respectively. In unit-vector

An exotic planet Vogsphere is known to have a mass that is 1/81 that of the Earth and a radius 0.25 that of the Earth. Astrophysicist Trillian built a rocket and decided to leave the planet and never to return. Given that the escape speed from the Earth is 11.2 km/s, with what speed must Trillian achieve his goal?

Current Attempt in Progress One model for a certain planet has a core of radius R and mass M surrounded by an outer shell of inner radius R, outer radius 2R, and mass 4M. If M-2.97 x 1024 kg and R-8.31 x 10 m, what is the gravitational acceleration of a particle at points (a) R and (b) 3R from the center of the planet? (a) Number (b) Number Units Units

hi. can you solve it with an explanation? thanks

Assuming that the Earth has a uniform density, ρ=5540.0⁢ kg/m3, what is the value of the gravitational acceleration gd at a distance d=4900.0 km from the Earth's center?

A planet requires 340 (Earth) days to complete its circular orbit around its sun, which has a mass of 7.5 x 1030 kg. What are the planet's (a) orbital radius and (b) orbital speed?

You are an astronaut in the space shuttle pursuing a satellite in need of repair. You are in a circular orbit of the same radius as the satellite (400 km above the Earth), but 25 km behind it. (a) How long will it take to overtake the satellite if you reduce your orbital radius by 1.0 km? (b) By how much must you reduce your orbital radius to catch up in 7.0 hours? Mass of Earth: 5.98×1024 kg, radius of Earth: 6.38×10 m, Universal Gravitation Constant: 6.67x10-l'N•m?/kg?

Needs Complete solution with 100 % accuracy.

The International Space Station has a mass of 4.19 ✕ 105 kg and orbits at a radius of 6.79 ✕ 106 m from the center of Earth. Find the gravitational force exerted by Earth on the space station, the space station's gravitational potential energy, and the weight of an 88.3 kg astronaut living inside the station. Just need the answer to option B   (a) the gravitational force (in N) exerted by Earth on the space station (Enter the magnitude.)   3622431.86 N (b) the space station's gravitational potential energy (in J)   _____________J (c) the weight (in N) of an 88.3 kg astronaut living inside the station  763.39 N