Orbital Definition and 790 Threads

When I was trying to learn the reason for the Orbital angular momentum quantum number taking only whole number values, I stumbled across the wiki site on the same, which says that, Angular momentum in quantum mechanics In quantum mechanics, angular momentum is quantized – that is, it...

When a moon orbits around a planet, its centripetal force is balanced against the gravity of the planet, keeping it in a stable orbit. If all motion is relative, then the moon in perfect orbit could be said to be standing still while the planet rotates under it. The major difference I see is...

Homework Statement What is the magnitude of the gravitational force on object #1 as a result of object #2? Distance A = 0.383 m and distance B = 0.271 m. the diagram for the problem is here: http://students.physicsygoodness.com/user/1/graphics/image001.gif Homework Equations Fg=...

Homework Statement A space shuttle S and a satellite A are in the circular orbits shown. In order for the shuttle to recover the satellite, the shuttle is first placed in an elliptical path BC by increasing it's speed by deltaVb=280 ft/s as it passes through B. As the shuttle approaches C, it's...

Homework Statement I have to find the orbital height of a satellite with a specific g force (ie. the acceleration due to gravity). g=5.7(ms)2 Homework Equations So far I have been using the equation g=Gm/(r+h)2 to find the acceleration due to gravity, where G= gravitational...

Io, a satellite of Jupiter, has an orbital period of 1.43 days and an orbital radius of 4.35X10^5 km. From this data, determine the mass of Jupiter. So step one: I cried. then I tried to use the equation: T^2=4(pi)^2/(GXMj) X R^3 thus (123552)^2= (39.478)/(6.672X10^-11)(Mj) X...

From Carroll and Ostlie “An Introduction to Modern Astrophysics” prob 2.6 b After determining angular momentum of sun-jupiter orbit system in part a, the question then asks you “What contribution does the sun make toward the total orbital angular momentum. It says assume Jupiter is in a...

We know that the orbital period of binary stars decay due to the emission of gravity waves that carry away energy from the system. What is the form of the energy loss of the system: kinetic energy or potential energy?

We know that the orbital period of binary stars decay due to the emission of gravity waves that carry away energy from the system. What is the form of the energy loss of the system: kinetic energy or potential energy?

Homework Statement The title presents my problem. I know in principle how to find eigenvalues and eigenfunctions of the Hamiltonian if it depends only on orbital operators or in spin operators. On the other hand I have no clue how to solve it if there are both types of operators. The...

Homework Statement The title presents my problem. I know in principle how to find eigenvalues and eigenfunctions of the Hamiltonian if it depends only on orbital operators or in spin operators. On the other hand I have no clue how to solve it if there are both types of operators. The...

Just can't get my head around this one. If at 100Km high above Earth the orbital speed to maintain altitude is X, then what would the speed be for the same object around the moon? Since gravity of the moon is smaller then earth's? I assume the orbital speed would need to be less?

The perihelion of Mercury precesses by 5600 arc-seconds per century, which is 43 arc-seconds per century more than Newtonian physics alone would predict Albert Einstein proposed a second-order correction to Mercury's orbit, based on his general theory of relativity. Which equation had...

Could someone explain the rudimentary parts of this model? Also, I don't understand how the Electron Configurations work for this. They seem to follow a particular pattern for certain elements and another pattern for other elements. Or is it the same for all elements? Here's what I think I...

Please tell me how to find the orbital energy of ellipse and hyperbolic trajectory. Thank you.

Please tell me that node of p-orbital is at nucleus or no. please give me right concept about orbital.

As the title suggests, i am having difficulty understanding orbital hybridization, as well as pi and sigma bonds. Can someone help me out and/or point me in the right direction? Thanks Tom

Homework Statement Using a strict interpretation of the n+l rule, how many protons would an atom need to create a ground state electron configuration with one electron in a 5g orbital? Give electron configuration. Homework Equations The Attempt at a Solution g is an l value of 4...

Homework Statement Is it possible to figure out the orbital period of an object with only the orbital radius given? --- It seems to be with the equations given too little information Homework Equations The Attempt at a Solution

Homework Statement Find the speed of an Earth satellite whose orbit is 400km above the Earth's surface. What is the period of the orbit. Homework Equations The first part was pretty easy. I used v=[(Gm)/r]^(1/2) to get the answer. The Attempt at a Solution For the first part, I...

Orbital Speed of a Star - Please Help! Homework Statement Calculate \Omega(r) and v(r) for the following density models: (a) all the mass M is at the center of the galaxy; (b) a constant density adding up to a mass M(R0) at the Sun’s orbit and no mass beyond. Homework Equations...

Homework Statement Two moons orbit a planet in nearly circular orbits. Moon A has orbital radius r, and moon B has orbital radius 5r. Moon A takes 50 days to complete one orbit. How long does it take moon B to complete and orbit? Homework Equations Kepler's Third Law The...

Homework Statement A Hydrogen atom is subjected to a magnetic field strong enough to overwhelm the spin-orbit coupling. Into how many levels would the 2p level split? What would the spacing be in the terms of Bext, e, me, and \hbar Homework Equations I know that I have to use the gLande...

Hi, I am trying to work out, for a given eccentricity,a known planet mass and a known value for the semi major axis is there a formula to work out the orbital speed of a planet around a central star? I have looked around online with not much success and was wondering if anyone could point me...

Why only electrons having opposite spin should be in a orbital ? What character does spin quantum number give to electron and some more interesting things on Spin quantum number please ..

First post here, I'm a student in a BS in Space Studies program and I'm having a little trouble. I have R vectors = rI rJ rK V vectors= vI vJ vK ( I'm not putting in numbers to avoid someone doing my homework for me) I am having a hard time wraping my brain around getting...

Hi guys i came across molecular orbital theory and i don't understand why sometimes there is orbital mixing. For example B,C,N have no orbital mixing while O,F have orbital mixing. May i know how to know when there is orbital mixing?

Hey all the prof derive the orbit equation for bodies in inverse square fields as: r=\frac{a(1-\epsilon^2)}{1+\epsilon\cos(\theta)} Now, I understand how this gives an ellipse for epsilon between 0 and 1, but when epsilon is one, how does this give a parabola? Isn't the equation...

I have some data about the elliptical orbits of the planets. I have a,e,i,ML,LP,N @ for a specific Julian Century, J2000. I need an equation check: w = LP - N EA = MA + e * sin(MA) * (1 + e * cos(MA)) x = a * (cos(EA) - e) y = a * sin(EA) * (1 - e^2)^0.5 r = (x^2 + y^2)^0.5 v =...

I know that I have learned this at some point in my past and that I am probably just blanking on the explanation, but I have been having some trouble remembering just how orbital energy is transferred via gravitational encounters (for example, between stars in a binary system). Physically, how...

Homework Statement Consider a particle that moves in three dimensions with wave function \varphi . Use operator methods to show that if \varphi has total angular momentm quantum number l=0 , then \varphi satifies L\varphi=0 for all three components L_\alpha of the total angular momentum L...

Homework Statement The space shuttle is in a 310 mile high orbit. What are the shuttle's orbital period, in minutes, and its speed? Homework Equations Period = 2(pi)r/v The Attempt at a Solution I can't figure out how to find the period without already having the velocity.

Please help asap! Orbital speed Homework Statement A satellite is placed in orbit 5.19x105m above the surface of Jupiter. Jupiter has a mass of 1.90x1027kg and a radius of 7.14x107m. Find the orbital speed of the satellite. Answer = m/s Homework Equations v = sqrt [GM/r]...

Homework Statement the problem asks to find the distance from the sun to a planet. the only information the question gives the the orbital period of 27 years and asks for the answer in km. Homework Equations c= (2)(pi)(r) The Attempt at a Solution assuming the planet revolves...

If a planet had a large massive satellite, on a long elliptical orbit, would the planet's rotation slow and speed up depending on the distance of the moon from the planet? I'm thinking of how a skater, the classical example of angular momentum, speeds up when bringing in her arms, and slows...

Homework Statement Two planets of masses m_1 and m_2 with radii r_1 and r_2 respectively are orbiting their common center of mass at some initial distance x_0 from each other with angular velocity \omega_0. Find the amount of time it takes for these planets to collide. Homework Equations...

Homework Statement Use Kepler's Third Law and a Taylor expansion to derive the following approximation for the orbital period of a satellite in low Earth orbit with a constant height h above the surface of the Earth. h << R_earth : P \approx P_{0}(1+3h/2R_{e}) Homework Equations Kepler's...

Hello everyone this is my first time posting on this website. I wanted to know if our solar system takes a path through the milky way on a linear plane or if it garbages up and down on an unstable x and y path? Just so you all know I'm not an expert in theories or have any type of degree in...

I am having trouble identifying the difference between VB theory and molecular orbital theory. To me, they seem to be one and the same. In VB theory, two atomic orbitals overlap and share electrons forming a bond... Wouldn't this combination of two Atomic orbitals make a molecular orbital?

According to Newton's law, the attraction exerted by the Sun on the Moon is greater than twice the attraction exerted by the Earth on its satellite, whatever the Moon's position during its motion. Nevertheless, the Moon's orbital plane around the Earth forms a 5.13 degree angle with the...

Ah, please, someone help me. I've been working on this problem for half an hour, it's the last question on my review before my test, which i want to write right now (correspondence). Homework Statement If a satellite requires 2.5 h to orbit a planet with an orbital radius of 2.6 x 10^5 m...

Homework Statement A projectile in uniform gravitational field g=-g*j\hat{} with initial location x(t=0)=_{}xo, y(0)=_{}yo show explicitly that the minimum value of radius of curvature \partial of the resulting parabolic trajectory occurs at the apex and equal to (^{}vox)^2/g Homework...

Homework Statement In lectures and textbooks the lunar orbital angular momentum is given as: A = m/(1 + m/M)xR2x\omegaL But if the distance r of the moon from the centre of mass of the Earth-moon system is given by: mxr = Mx(R-r); so r = MR/(M +m) = R/(1 + m/M) and so the moon's angular...

I've recently been pondering the following thought experiment: Assume that the Earth was to gain a large amount of mass in a very short time, which effectively increase the mass of the Earth by approx. 1.5 * 1021 kg, and this in course of say five years. What I've been trying to figure out...

How does the orbital angular momentum of two electrons in the same shell and same energy state cancel each others orbital angular momentum, provided both electrons have opposite spin?

1-is electron orbit about the nucleus ? 2-is there is different between rotation and orbit? thanks in advance

The on on the left w/ the red arrow pointing to it: http://img198.imageshack.us/img198/5062/92513846.jpg

I've always been confused about how many electrons are in an orbital ... is it one, or two? Because orbital diagrams would lead me to believe there were two, since there are two arrows on each line, but illustrations make me think otherwise. Thanks ahead of time o:)

Hello everyone, During the last few days I've been working to solve a "small" problem I hope someone here might be better at than I am. I'm writing a function that returns the state vectors of an orbiting body of neglible mass based on the orbital elements semimajor axis, semiminor axis...

Homework Statement On each of the apollo missions the command module was placed in a very low aprox circular orbit above the moon. Assum the avrg hieght was 60km above surface of moon and moons radius is 7738km. (Mass of moon=7.34x10^22kg) What was the command modules orbital period...