A satellite of mass 390 kg is in a circular orbit around the Earth at an altitude equal to the Earth's mean radius. Calculate the gravitational force acting on it.

A 300kg satellite moves in a circular orbit around the Mars (radius of the planet Mars is 3.37 ✕ 106 m and its mass is 6.42 ✕ 1023  kg) at a speed of 2300 m/s. (a) Determine the satellite's altitude above the surface of the Mars. (b) Determine the period of the satellite's orbit. (c) Find the gravitational force acting on it from the Mars.

A satellite of Mars, called Phobos, has an orbital radius of 9.4 ✕ 106 m and a period of 2.8 ✕ 104 s. Assuming the orbit is circular, determine the mass of Mars. (ans kg)

Two objects of equal mass are located at 1.0m and 2.0m above the surface of the Earth. Explain why we can treat the gravitational force on these objects as being equal, even though they are different distances from the center of the Earth.

A 561-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. (a) Find the satellite's orbital speed.  ?m/s (b) Find the period of its revolution.  ?h (c) Find the gravitational force acting on it. ? N

One of your summer lunar space camp activities is to launch a 1210-kg rocket from the surface of the Moon. You are a serious space camper and you launch a serious rocket: it reaches an altitude of 229 km. What gain in gravitational potential energy does the launch accomplish? The mass and radius of the Moon are 7.36 × 1022 kg and 1740 km, respectively.

A satellite is in a circular orbit around the Earth at an altitude of 2.63 x 10° m. (a) Find the period of the orbit. (b) Find the speed of the satellite. (c) Find the acceleration of the satellite. Step 1 (a) satelli has an Ititu of h = 2.63 x 10° m face of Earth, the adius orbit r, where R- is the Earth's radius, is given by x 106 m) = x 106 m. RE + h = 6.38 x 106 r = +

Earth’s gravitational field strength at the surface is 9.80 N/kg. Determine the distance, as a multiple of Earth’sradius, rE, above Earth’s surface at which the magnitude of the acceleration due to gravity is 3.20 N/kg.

The planet Mars has a satellite, Phobos, which travels in an orbit of radius 9.4 xm with a period of 7 hr 39 min. Calculate the mass of Mars from this information.

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