Satellite Definition and 687 Threads

[SOLVED] Period of a satellite 1. Given: G = 6.67 x 10^-11 N m^2/ kg^2 The acceleration of gravity on the surface of a planet of radius R = 4910 km is 11.8 m/s^2. What is the period T of a satellite in circular h = 8445.2 km above the surface? Answer in units of s. 2. F = GMm/r^2 F...

Homework Statement -------------------------------------------------------------------------------- hey i was just wondering if i was on the right track here, the question is calculate the total energy(E) of a geosynchronous satelite (that orbits around a fixed spot) with a mass of 1500kg...

A small package is fired off Earth's surface with a speed V at a 45o angle. It reaches maximum height of h above surface at h=6370km, a value equal to Earth's radius itself. What is the speed when it reaches this height? Ignore any effects that might come from Earth's rotation. Energy...

A 220 kg satellite is in an approximatel circular orbit 640 km above the Earths surface. a) Speed of satellite and the period of its orbit? Vt^2 = GM/R = (6.67 x 10^-11)(6 x 10^24) / (6.37 x 10^6 + 640000) (That's radius of Earth plus height of satellite) = 7555.8 m/s T^2 = (4pi^2 / GM) x...

Homework Statement A geosynchronous satellite is stationary over a point on the equator (zero degrees latitude) at the same longitude as Seattle, Washington. Seattle's latitude is 47.6°. If you want to communicate with the satellite, at what angle above the horizon must you point your...

[b]1. An Earth satellite moves in a circular orbit 735 km above the Earth's surface. The period of the motion is 99.3 min. (a) What is the speed of the satellite?(b) What is the magnitude of the centripetal acceleration of the satellite? [b]2. a = v^2/r T=2(pi)r/v [b]3. i needed...

Homework Statement A geosynchronous satellite is used for communication and stays at the same place above the equator all the time. Calculate the a)Height of the satellite b)Speed at which it travels. Homework Equations v=2πr\t a=v2/r F=Gm1m2\r2 The Attempt at a Solution I'm...

Homework Statement A communications satellite with a mass of 240 kg is in a circular orbit about the Earth. The radius of the orbit is 41200 km as measured from the center of the Earth. (a) Calculate the weight of the satellite on the surface of the Earth. The final answer is in kN Homework...

[SOLVED] Gravitational Forces Homework Statement A 1000 kg weather satellite is orbiting the Earth at a constant speed. It is 500 km above the Earth's surface. The Earth has a mass of 5.976 x 10^24 kg and a radius of 6370 km. (a) How much gravitational force exists between the Earth and the...

1. Consider a transponder with a 56 MHz bandwidth and an available single carrier C/No value of 97.5 dB Hz. Using a single channel per carrier – voice activated system (assume ∝ = 0.35) how many channels of QPSK modulated PCM can be sustained? Allow 3 dB loss for intermodulation and 10% for...

Hello, Im new to this forum and i hope u guys can help me with this question. I need to explain how electric, gravitational and magnetic fields are present in the building and launching of a satellite. I know that gravitational will be present at launching since gravity will be acting on...

Homework Statement A 347 kg satellite orbits mercury and makes 6.6 orbits in 1 day. Mercury ---- Radius 2.44*10^6 meters ----- Mass 3.27*10^23 kg 1.Find the Period of Revolution 2.Calculate the Tangential Velocity 3.Calculate the height above the surface of the planet that the...

Homework Statement Describe TWO difficulties associated with effective or reliable communications between satellites and Earth. Homework Equations The Attempt at a Solution my class work Many google searches but still no clear answer

[SOLVED] radius of synchronous satellite from a planet Homework Statement A "synchronous" satellite, which always remains above the same point on a planet's equator, is put in orbit about a planet similar to Jupiter. This planet rotates once every 7.8h, has a mass of 1.8e27kg and a radius of...

Homework Statement One scheduled activities during a shuttle misison was the launching of a communications satellite. This 1220kg satellite Geo II is a uniform cylinder of diameter d= 1.18m and length L= 1.72m. It is identical in mass, density, and shape to Geo I, which is already in...

If a space station is traveling in space at a speed of 5230 m/s, and launches a satellite, would the initial speed of the satellite be 0 m/s or 5230 m/s?

(a) At what height above the Earth is the acceleration due to gravity 10% of its value at the surface? (b) What is the speed of a satellite orbiting at that height? Note: _e means earth g = { g_e / [1+(h/R_e)^2] } At height 0, g = 9.83m/s^2 R = 6400km I know that we need to...

Homework Statement msatellite = 6000 kg ; Mearth = 5:98 £ 1024 kg ; Rearth = 6:37 £ 106 m; and G = 6:67259 £ 10¡11 Nm2=kg2 : The radius of the satellite around the center of the Earth is r =13/2R. Hint: You may Find it useful to take into account that the gravitational force is a...

Homework Statement I'm looking for the period of an orbiting object a certain height from the Earth's surface, I am given this height. So I have the total radius of 6,5OO,OOO m, g = 9.81 m/s^2 and the mass of Earth = 5.98*10^24 kg Please note that for this problem G is another constant...

Homework Statement A space station shaped like a giant wheel has a radius of 90 m and a moment of inertia of 4.50 108 kg·m2. A crew of 150 are living on the rim, and the station's rotation causes the crew to experience an acceleration of 1g (Fig. P10.47). When 100 people move to the center of...

Homework Statement A satellite orbits Earth 4.0 x 10^{7} m away. The force of gravity between the satellite and Earth is 228 N. What is the mass of the satellite? Homework Equations Fg = (Gm1m2)/(r^{2}) The Attempt at a Solution...

Problem: I have these exercises that I need help with. They look easy and I have an idea on what to do, but the answer I get is not right. I know I'm doing something wrong and I need any help I can get. Homework Statement 1.) An Earth satellite moves in a circular orbit 640 Km above...

Anybody has an idea about that? Thanks

Homework Statement The weather pictures you see every day on TV come from a spacecraft in a stationary position relative to the surface of Earth, 35,700 km above Earths equator. Explain how it can stay exactly in position day after day. What would happen if it were closer? Farther out...

Hi, I would like to know if that there is any known ray or system that could be sent from a satellite down to Earth to read the Earth's magnetic fields to see high concentrations of precious metals in the ground? In other words I would like to discuss the possibilities of sending a satellite...

Homework Statement A satellite is in a circular orbit about the Earth (M = 5.98 x 1024 kg). The period of the satellite is 7.12 x 104 s. What is the speed at which the satellite travels? 2. The attempt at a solution I used the equation: http://img171.imageshack.us/img171/7176/math062gg0.gif...

Homework Statement A satellite is in a circular orbit around the earth. The period of the satellite is 22.0 hr. Calculate the radius of the orbit of the satellite. Data: Mass of the Earth = 5.98·1024 kg. Homework Equations I thought I could use... T^2 = (4pi^2/GM) * r^3 but I am not...

Homework Statement A remote sensing satellite is deployed in a circular sun-synchronous orbit with inclination 96.85 degrees. A. Calculate orbit altitude. I did this and got 349km. B. The spacecraft coefficient is 200 kg/m^2. Solar conditions during the spacecraft launch are...

You will need to use the Momentum Principle to do the first part of this problem, and the Energy Principle to do the second part. A satellite of mass 6500 kg orbits the Earth in a circular orbit of radius of 8.4 106 m (this is above the Earth's atmosphere).The mass of the Earth is 6.0 1024...

Is it possible to launch the satellite into orbit with inclination less than of latitude of the launch site? Can you please explain to me using some formulas.

Homework Statement A satellite is in a circular orbit about the Earth (M = 5.98 x 1024 kg). The period of the satellite is 9.93 x 104 s. What is the speed at which the satellite travels? Homework Equations v=(2*pi*r)/T v=sqrt((GMe)/r) The Attempt at a Solution...

What type of orbit would be used for a scientific satellite which needs to take regular readings to measure changes in the concentration of ozone gas in the stratosphere over Antarctica?

Tonight, I saw something unlike anything else I have ever seen before. It was like a meteorite, but much slower. Instead of a streak, it was a fast moving light, much too fast to be a jet airplane. At the end of it's flight, it burned up to nothing. It was very close to 12 o'clock ahead of me...

Hi guys. Let's say we put a satellite on a geosynchronous orbit over the earth. The signal transmitted by the satellite does not reach the exact half of the Earth as much as you can intuitively try but is a portion formed by the two tangents from the point the satellite is on. The problem is to...

Homework Statement Determine how long it would take for the satellite to make 1 complete revolution around earth A 500 kg satellite is orbiting earth, radius of Earth is 6.38 x 10^3 km, and acceleration of gravity as the orbital altitude of 160km is the same as Earth basically 9.8.Homework...

Homework Statement When a satellite is at the desired altitude over the equator or Jupiter its velocity has the correst direction but the speed is (a) slightly faster that the correct speed for a circular orbit of the radius and (b) is slighly slower than the correct speed for a circular orbit...

Hello I am in Grade 12 Physics and I would like some help on this problem as soon as possible. Thanks. A satellite travels directly above the equator, in the same direction as the Earth's spin, and completes two orbits of the Earth in one day. Determine the distance above the Earth's surface...

Forgive my rusty English. But I really need urgent and Professional help, teachers and professors, please: A satellite has been put on Earth's orbit at a high speed, (forget atmosphere friction, forget moon attraction, forget sun gravity), theoretically, without any further thrust, will it...

Homework Statement An astronaut of mass 74 kg pushes off a satellite of mass 420 kg, exerting a force of 120 N for the 0.82 s they are in contact. Homework Equations What is the speed of the astronaut after they have separated? What is the speed of the satellite after they have...

You are asked to design a spring that will give a 1200 kg satellite a speed of 3.80 m/s relative to an orbiting space shuttle. Your spring is to give the satellite a maximum acceleration of 5.00g. The spring's mass, the recoil kinetic energy of the shuttle, and changes in gravitational potential...

Homework Statement Planet X rotates in the same manner as the earth, around an axis through its north and south poles, and is perfectly spherical. An astronaut who weighs w on the Earth weighs w_1 at the north pole of Planet X and only w_2 at its equator. The distance from the north pole to...

Homework Statement Find the energy required to launch a satellite from Earth into circular orbit at radius 5Re in units of joules. Msat = 1000 kg Me = 5.98e24 kg Re = 6.37e6 G = 6.67259e-11 Homework Equations F = GMm/(r^2) The Attempt at a Solution I'm thinking somehow...

A satellite is designed to orbit Earth at an altitude above its surface that will place it in a gravitational field with a strength of 4.5 N/kg a) Calculate the distance above the surface of Earth at which the satellite must orbit b) Assuming the orbit is circular calculate the...

How much work is required to lift a 1000-kg satelitte to an altitude of 2*10^6 m above the surface of the earth? The gravitational force is F = GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The radius of the Earth is 6.4*10^6m, its...

A 575 kg satellite is in a circular orbit at an altitude of 550 km above the Earth's surface. Because of air friction, the satellite eventually falls to the Earth's surface, where it hits the ground with a speed of 2.10 km/s. How much energy was transformed to internal energy by means of...

Can't really figure out where to start. Any help would be appreciated. Homework Statement A 575 kg satellite is in a circular orbit at an altitude of 550 km above the Earth's surface. Because of air friction, the satellite eventually falls to the Earth's surface, where it hits the ground with...

Homework Statement A well-known paradox is that the air friction due to the outer layer of the Earth's atmosphere will reduce the total energy of the satellite and therefore the satellite will move slower. But it is observed that the satellite actually moves faster. Try to explain this...

Calculate the total energy of a geosynchronous satellite (one that orbits over a fixed spot) with a mass of 1500kg, orbiting Earth at a height of 325km with an orbital speed of 5000m/s This question is starting to drive me a little mad. First of all, the satellite can't be in a...

Homework Statement It is proposed to place a communications satellite in a circular orbit rounf the equator at a height og 3.59 x 10^7m above the Earth's surface. Find the period of revolution of the satellite in hours and comment on result. Values given: Radius of Earth: 6.37 x 10^6m...

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