Orbital Definition and 790 Threads

Homework Statement Friend's fiancee gave this problem on a final she was administering and isn't sure how the answer key is right: Boyle's law describes the inverse variation between the volume of a gas and the pressure, y, exerted on it. A balloon with a volume of 2.25 liters is sealed in...

Decribe the hybrid orbital on the chlorine atom for ClO3+ ion. The book says sp2 hybrid with double bonds on each O. But it seems like: 1) Cl should donate 2 electrons to 2 O's 2) lose 1 electron for + charge on ion. 3) form two singles and one double bond with the O's From this I...

How are the orbital frequencies of single atomic electrons, and covalent electrons determined?

I am toying with the idea of creating a general orbital simulator. Possibly lacking the proper terminology, here is a basic description of my goal, make that wild dream. Step 1. Working in 2 dimensions, user enters the mass of 1 to N object, their initial position, their initial velocity...

Hi, Is it possible for a man made object to remain in a circular solar orbit at speeds approaching light speed without a coriolis force destroying the object or disrupting the orbit. If so, what distance from the sun would be required and what would the orbital period be?KodeK reel8.co.uk

Hey just need help regarding a few questions. 1. Which is more stable, C 2s or C 2p? Why? Choose the best answers from below: (a)higher shielding (b) lower shielding (c) lower n value (d) lower l value 2. Which is more stable, Ar 5p or Ar+ 5p? Why? Choose the best answers from below: (a)higher...

I have read some information, from various sources, pertaining to the orbital speed of stars about the center of galaxies, and some of it appears to be conflicting. Some sources claim that the stars closer to the galactic center orbit faster, while those father out, orbit slower. This of...

I had thought that for an object in a simple circular orbit, the escape velocity would be root 2 times it's orbital speed. And that this should approximately apply for the Moon too. However Wikipedia here http://en.wikipedia.org/wiki/Moon gives the moon's escape velocity as 2.38 km/sec...

orbital speed of mars! help!? Mars is 230 million km from the sun. It completes one orbit in a period of approximately 687 days. Calculate the orbital speed of Mars in mph. OK so gave me the formula which 2*pi*r/ Period r= distance from the planet to the sun. and cirmumference = 2*pi* r...

this is the question from our project/ assignment: The experimentally observed H-O-H bond angle of water is 104.5 degrees in water. Determine a hybridized orbital scheme that could account for the observed bong angle of 104.5 degrees. Redraw a fully labeled orbital overlap diagram using the...

How can the earth’s orbital speed be determined from observations of the spectrum of a star? Thanks

Orbital speed of Earth! help! The Earth is 150 million km from the sun. IT completes one orbit in a period of approximately 365.25 days. Calculate the orbital speed of Earth in mph? OK guys so they give me the formula which is 2*pI*r /Period r= distance from the planet to the sun. and...

[b]1. A positron is an elementary particle identical to an electron except that its charge is + e. An electron and a positron can rotate about their center of mass as if they were a dumbbell connected by a massless rod. What is the orbital frequency for an electron and a positron 1.70 nm...

[SOLVED] molecular orbital wavefunctions http://img255.imageshack.us/img255/7012/37626561fb6.jpg starting with Sz(total) = Sz1 + Sz2 Sz(alpha) = +(1/2)hbar(alpha) Sz(beta) = -(1/2)hbar(beta) I first found the determinant and then simplified psi =...

Given: Planet is orbiting a star G = 6.67259 x 10^-11 Nm^2/kg^2 Mstar = 1.99 x 10^30 kg mplanet = 5.98 x 10^24 kg distance from perihelion to star = 1.69 x 10^11 m distance from aphelion to star = 1.745 x 10^11 m potential energy at perihelion = -4.698 x 10^33 J Need: Kinetic...

can mankind do like the ISS and launch many sections of a orbital space-dock into the orbit and use these as a platform to build large ships required to transport people to other solar systems?

Im trying to solve (approximately) the following problem: Suppose that i have 2 planets with mass m1 and m2 orbiting around the sun and i take into account the following interactions: a) Interaction between planet 1 and the sun b) Interaction between planet 2 and the sun c) Interaction...

Why can't an electron in a coulomb field have an orbital angular momentum quantum number higher than it's principal quantum number (ie there is no 1p state etc.) I think is probably something I learned at one point, but I've forgotten and can't seem to find anything about it anywhere. I know...

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...

Jupiter is 5.2 times farther than Earth from the sun. Find Jupiter's orbital period in Earth years. Equation to use is: T^2 = Kr^3 Radius of Earth is 6378100 m and radius of Jupiter is 71492000 m. I rearrange the equation to K = T^2/r^3 and set k of Earth equal to k of Jupiter. I enter...

An unmanned spacecraft moves in a circular orbit with speed v around the moon,observing the lunar surface at an orbital radius of R=1790 km.The period of the orbit is T.Unfortunately, an electrical fault causes an on board thruster to fire, reducing the speed of the spacecraft by \Deltav=5...

Hi I was wondering if anyone can tell me how to find the bond order from a molecular orbital diagram. For example i found one on this website attached... "Comparison of the above energy level diagram wit hthat for nitrogen - you can see that the 2sg level lies lower than pu. Here...

What is orbital period?

Homework Statement http://avogadro.chem.iastate.edu/CHEM332/332Fall06Exam5Key.pdf Please go to page 5. Homework Equations No equations, just concepts. The Attempt at a Solution I tried the first problem (A), and got the solution wrong. I thought I'd check the concepts before attempting any...

[SOLVED] molecular orbital model I have a few quick questions: consider the structure of glycine a) indicate the hybridizations at each N and C atom in the molecule? I got sp3, sp3, and sp2 I don't have a problem with that question b) what is the total number of bonds in the...

Homework Statement Determine the most probable radius for a 2s orbital (Hydrogen atom) Homework Equations Wavefunction for a 2s orbital: 1/(4√2pi*a^(3⁄2) ) (2-r⁄a) e^((-r)⁄(2a)) where, a=bohr radius The Attempt at a Solution First step: find the probability density by...

Homework Statement I have to show that the p orbital wavefunctions are orthonormal to eath other in l=1 subspace. Homework Equations The Attempt at a Solution looking at my notes, I thought the expressions for p orb wavefunctions were: Psi_px=sqrt(3/4pi) cos(phi) sin(theta)...

Homework Statement Say you have a binary star sytem. Both stars have mass M and semimajor axis a. The orbits are extremely eccentric (e is approximately 1). How would you describe the energy of the system? Homework Equations SEE BELOW The Attempt at a Solution Basically I'm very...

Homework Statement What is the ratio of the Earth's orbital period about the sun to the Earth's period of rotation about its own axis Homework Equations none, theory The Attempt at a Solution Its theory Two 335 kg masses (744 lb) are separated by a distance of 5 m. Using...

I understand that light can be in an unstable orbit at Schwarzschild radial coordinate r=3M (geometric units) around a Schwarzschild black hole. I also understand that the local* circular orbital speed of a massive particle around the hole is v_o = r\frac{d\phi}{dt} =...

A star has a mass approximately 100 times that of our sun. If a planet with the same mass as the Earth is oribiting at a radius similar to that of the Earth's radius around the sun, how long would it take the planet to revolve around the star once? Ok, the period of the Earth's rotation is...

iI was asked to find the mass of a star given the orbital distance and the period. my mass came out to be 2.31^30 kg. Its then asking me to express it in terms of our sun's mass. Really don't understand what it means by that

Homework Statement There is a planet of mass m_1 orbiting a star of mass m_2. One question is "What is the semimajor axis of the planet's orbit in the coordinate system centered at the star's center", and another is "What is the semimajor axis of the planet's orbit centered at the center of...

Homework Statement The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 4.2 Earth years. What are the asteroid's orbital radius and speed? Homework Equations T = 2pi sqrt(r/g) The Attempt at a Solution I tried manipulating the...

See attached image for problem description and diagram. I am confused as to how to solve this problem (part A) because of the following. I know the altitude, and hence, radius of the circular orbit that both satellites are initially in. Since we know the radius, we can calculate the period of...

So it was basic to figure out the masses and such, but I'm not exactly sure what the "orbital separation" really is? Can someone enlighten me? Here is the question for reference: A moon with a mass one quarter that of its parent planet orbits that planet with a period of 12 days. The mass of...

Of an asteroid whose Mass is 2.0*10^-2 times that of Earth's and whose distance from the sun is twice the Earth's distance from the sun. Find the period in years. I am supposed to use the concept of gravitational F=centripital force=m\frac{v^2}{r} and the fact that v=\frac{2\pi r}{T} so this...

In some places I saw that the module of the kinetic orbital momentum of an electron in an atom is a) L^2=l(l+1)h^/(4pi^2) ==> L =h/(2pi)sqrt(l*(l+1)) l=0,1,2,...n-1 b) L=n*h/(2pi) n beeing the energy level of an electron . Now , my opinion is that the first is true . But I saw...

This is not a homework problem. I want to learn how to perform this kind of “approach” calculation on my own. So I’m not interested in someone solving this particular problem, with these specific values, for me. What I want to know is what equations to use, and how to apply them, so that in the...

Help needed! Could someone please answer the folloing questions. Plese do give the explanations too 2- What is the energy of the lowest orbital and why? 3- If an electron makes a transition from 2nd to the first orbital than in which of the following particles will the...

Consider a two body system for simplicity: M1 << M2. M1 is in a circular orbit about M2. The tangential speed of M1 is inversely proportional to its distance from the center of M2. However, in order to move to a lower orbit, or to de-orbit completely, M1 must lose tangential speed (in the...

Hi, so I found a difference in what my professor wrote on the board and what I found on wikipedia... my prof said that E=-Rhc/n^2 but wikipedia says E=-mq^4/8(h^2)(epsilon)^2(n^2) So if I write out the expression for R in the professor's equation, it seems that the wikipedia...

Hi. I was wondering how GR and/or SR is taken into account when the people over at NASA launch probes to comets, or any of the planets? I know GPS uses GR and SR and I've read a bit about that. But do they need to take into account GR/SR when planning missions or is the Newtonian limit good...

Thank you.

I read in several places (including thenineplanets.org) that Pluto's poles are "almost perpendicular to its orbit". But the actual number I see is 122 degrees. So its polar axis is actually 32 degrees below its plane, right? (meaning that Earth sees the North pole of Pluto in its Southern limb)...

While studying the structure of 1,3 butadiene and considering frontier orbital theory, I came across a graph of the HOMO to LUMO orbitals. Basically put, when I draw out all the res structures for 1,3 butadiene, i can make 4 of them (i know that 2 of them are very unstable and 1 of them...

Homework Statement Consider the states for which l=4 and s=1/2.For the state wit hteh largest j, and the largest mj, calculate a) the nagle between L and S the angle between \mu_{l} and \mu_{s} c) the angle between J and the +z axisHomework Equations j=l+/-s The Attempt at a Solution the...

I have a question about orbital speed. Imagine a shuttle moving in an orbit near the Earth surface, its total energy is "-GMm/2r", so its total energy is directly proportional to -1/r In order to spiral into another orbit of smaller radius which mean it would have a larger angular speed...

Awesome forum here! I'm stuck on a homework problem and need some guidance. A H-atom exists in a 3px state. What would be the result of measuring the total orbital angular momentum of this state (e.g. 100 measurements)? I assume when they say 100 measurements that they mean the...

Homework Statement Finally, develop models for only the four innermost planets and the four Galilean moons by reducing all the orbital radii by a factor that makes the orbital radius of the first planet or moon equal to one. Give possible reasons for the similarities and/or differences in two...