Satellite Definition and 671 Threads

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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Homework Statement Calculate at what height above the Earth's surface a satellite must be placed if it is to remain over the same geographical point on the equator of the earth. What is the velocity of such a satellite? Homework Equations v = sqrt(G*m / r) The Attempt at a Solution At...

Homework Statement A satellite in an orbit around Earth has velocities between Vmin=V-V0 and Vmax=V+V0. Find the eccentricity of the orbit. Homework Equations rmin=l^2/(Gm1m2*mu*(1+e)) E=(Gm1m2)^2*mu*(e^2-1)/2l^2 where mu = reduced mass = m1m2/m1+m2 The Attempt at a Solution I know...

Homework Statement Calculate the work required to move a planet's satellite of mass 2230 kg from a circular orbit of radius 2R to one of radius 3R, where 5.32 X 10^6 m is the radius of the planet. The mass of the planet is 3.36 X 10^24 kg. Answer in units of J. Homework Equations U(r) =...

I am building a small satellite for my project in which I have to release a mechanism to eject the landing gear at a certain altitude before landing vertically. The landing gear will consist of spring-loaded rods, initially at 90 degree angle with respect to the circular base of diameter 2 inch...

A satellite has a orbital period of 5760s around earth. What is the orbital radius? I'm not sure how I can do this without the velocity or acceleration. Thanks,

1. A newspaper article discussing the space program noted that it is easier to launch a satellite into an eastward orbit tan into a westward orbit. Is this true? a.No, this is not true because it is the upward component of velocity that is important in reaching an orbit, not the horizontal...

A satellite, mass of satellite=5850 kg, is in circular orbit of 4.1x10^5m above the surface of a planet, which has a radius of 4.15x10^6m. The period for the orbit is 2 hours. A) calculate the tangential velocity of the satellite. B) find the mass of the planet. C) how much would the...

Hi, I'm having trouble with this question: Mars rotates on its axis once every 24.8 hours.What is the speed of a geosynchronous satellite orbiting Mars? I thought I could use the equation: v= the square root of Gm/r however I've realized that the hight of the satellie's orbit has not...

We just started the chapter on circular motion. I am trying to find the velocity of a satellite 3600 km above earth. I came up with v= square root of (g)(M[SIZE="1"]earth/R). Is this correct? I tried V= 2(pie)R/T, but that didn't give me the correct answer.

I'v been trying to work out this question for ages, but nothings quite working for me, here goes.. q. a) calculate the orbital radius of a synchronous satellite (one period of 24hr, so appears stationary above anyone point). Approximately how many radii of Earth is this orbital radius? Why...

If a geo-synchoronise satelite(which has the same time period as that of the earth) comes in a straight line with the Sun. Does it catch the shadow on the earth? If not why?

To find the radius of a geo-stationary satellite in terms of R_e, we see--- M_s*w^2*R_s=G*M_eM_s/R_s^2 from where using GM_e=g R_e^2, We get R_s^3=gR_e^2/w^2. w can be evaluated. The problem is because of the fact that Kleppner provides the soln. R_s=6.6R_e.How, one can get rid of...

A spy satellite is in circular orbit around Earth. It makes one revolution in 6.04 hours. (a) How high above Earth's surface is the satellite? (b) What is the satellite's acceleration? I really have no idea what to do on this. All of the equations that I have, I cannot solve because I...

I'm highly skeptical. This guy claims to have just luckily caught this pic of a satellite through his scope with a handheld digital camera. Is this plausible at all? http://img237.imageshack.us/img237/4535/dscn0210mq7.jpg"