A submarine of mass 200 kg is sent into a newly discovered "liquid" planet , i.e. the planet is a spherical mass of liquid with a mass M = 8.00 x1024 kg and a radius of %3D R=1.17 x10 m. Assume that the liquid has uniform density throughout the planet. What is the gravitational force on the submarine when its distance from the center of the planet is r=0.4R (in Newtons)? G = 6.67 x 10-11 N. m2/kg2

The mass of a planet is one third that of the earth and the diameter of the planet is six times that of the earth. What is the acceleration due to gravity on the surface of the planet? Given g on earth is 9.8 ms-2.

Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 4.70 m/s2, and atmospheric pressure is 8.60 ✕ 104 Pa. The atmospheric temperature and pressure on this planet causes the density of the liquid methane ocean to be 415 kg/m3.   (a) What force (in N) is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of the ocean?  N (b) What is the weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m? (Enter your answer in N.)  N (c) What is the pressure (in Pa) at a depth of 10.0 m in the methane ocean?  Pa

In the figure, three 9.74 kg spheres are located at distances d₁ = 0.953 m, and d₂ = 0.215 m. What are the (a) magnitude and (b) direction (relative to the positive direction of the x axis) of the net gravitational force on sphere B due to spheres A and C? (a) Number i (b) Number i dr B Units Units î ✪