Satellites Definition and 175 Threads

Quoted from http://hyperphysics.phy-astr.gsu.edu/hbase/gps.html#c1" How do they know which of the points is the correct one? (see sentence in blod) Thank you!:approve:

If you had a pair of celestial rotating in a circle, both of equal mass size. Would it be possible for the planets to have a shared satellite? Thank you for reading, Alex

Hello I need osme help with these two problems. I was told the ansers but do not undersatnd how the answers were gotten. 1. The power dissipated in lifting a 2.0 kg ball vertically at 3.0m/s equals what? The answer is 59 W. ALl I know is that power equals Work/ delta T but there is no...

hi everyone. I am having a little bit of trouble on this and was wondering if someone can help. i don't understand how to answer parts c and f this is the picture: a)Consider a 1000 kg communication satellite that needs to be boosted from an orbit 300 km above the Earth to a geosynchronous...

i solved it. thanks to all who responded

Hi, I just recently posted this on the astrophysics forum but thought it would probably not quite fit so i decided to move it here. Hi, this is my first post. I have been trying to find an answer out of my own interest but is unable to do so. while searching I found this wonderful website. I...

Hi, this is my first post. I have been trying to find an answer out of my own interest but is unable to do so. while searching I found this wonderful website. I hope you guys can help. I came across a series of questions today and one of the question asks "What keeps satellites in orbit?"...

I’ve been wondering for a while now whether there were any projects on the drawing board for Solar Power Satellites, (SPS) and today I came across a Japanese experiment set to launch on January 18, called the Furoshiki experiment. Furoshiki is a Japanese word for a cloth used to wrap up small...

NASA'S HUBBLE REVEALS POSSIBLE NEW MOONS AROUND PLUTO Using NASA's Hubble Space Telescope to view the ninth planet in our solar system, astronomers discovered Pluto may have not one, but three moons. If confirmed, the discovery of the two new moons could offer insights into the nature and...

I really don't understand the universal gravitation chapters and the satellites one. It is sooo confusing. So can anyone help me with these questions. 1. Determine the magnitude of the apparent of a 56 kg student standing in an elevator when the elevator is experiencing an acceleration of (a)...

How do scientists counteract the radiation pressure of sunlight falling on artifical satellites for e.g. on solar panels? Do they use rockets or is the orbit self-correcting?

How do scientists ensure that a satellite passes the same point on Earth's surface over and over again in each successive revolution? Isn't there any variation in the latitude over which the satellite passes?

Here's my problem: A 23.0-kg satellite has a circular orbit with a period of 2.35 h and a radius of 8.90×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 8.90 m/s2, what is the radius of the planet? I got to say, I...

I hear that saturn satellites collapsed because of an incident or s.th like this and then because of their gravity they reconstructed again. what do you think or know about it?!

another problem bout satellites... to exit the solar system, the Pioneer spacecraft used a gravitational assist from jupiter, which increased its kinetic energy at the expense of Jupiter's kinetic energy. If the spacecraft did not have assist, how far out in the solar system would it...

here is another problem... a 650kg satellite is to be placed into synchronus orbit around Earth. What amount of work must be done onthe satellite to raise it into synchronous orbit? i did.. W=GMm(1/r of Earth - 1/r of synchronous satellite) = 6.673x10^-11N m^2/kg^2...

this is the problem... What is the change in gravitational potential energy of a 6200kg satellite that lifts off from Earth's surface into a circular orbit of altitude2500km? i did this... r = rE +h =6.38 x10^6m + 2.5 x10^6m r=8.88 x10^6m Eg= -GMm r...

i was hoping somebody could give me a hand with a homework problem i have . first here's the question . -> Planet X has two satellites . A and B . Both orbits are circular . Satellite A's orbital radius is 4 times B's orbital radius . calculate the following ratios . a) A's orbital...

The Explorer VIII satellite, placed into orbit November 3, 1960, to investigate the ionosphere, had the following orbit parameters: perigee, 459 km; apogee, 2289 km (both distances above the Earth's surface); period, 112.7 min. Find the ratio vp/va of the speed at perigee to that at apogee.

The Explorer VIII satellite, placed into orbit November 3, 1960, to investigate the ionosphere, had the following orbit parameters: perigee, 459 km; apogee, 2289 km (both distances above the Earth's surface); period, 112.7 min. Find the ratio vp/va of the speed at perigee to that at apogee.

A satellite orbits a planet at a distance of 3.70*10^8 m. Assume that this distance is between the centers of the planet and the satellite and that the mass of the planet is 3.93*10^24 kg. Find the period for the moon's motion around the earth. Express the answers in Earth days. I tried...

Here is a question that I am having a hard time understanding. 75) the period of a hypothetical Earth satellite orbiting at sea level would be 80 minutes. In terms of the Earth's radius Re, the radius of a synchronous satellite orbit ( period 24 hours) is mostly: (A) 3 Re (B) 7 Re (C) 18...

Maybe I'm not able to question about it in english. Hmmm... let's go. Why are the satellites and their external structures like panels, covered with a golden coloured paper when they are assembled?. Don't laugh at me!. I really never knew the reason. Also, I have seen the research staff of...

How accurate does the orbiting velocity of a geostationary satellite have to be so that it keeps in synch with the same geographical part of the Earth over a period of ten years.

<first post> Would it be possible to program an autonomous satilite? (collecting its own Fuel and power from the sun?) It is possible to collect hydrogen from solar winds It is possible to charge hydrogen ions like a battery (static charge, using a van-dagraph generator) Salilites have solar...