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Astronomy (algebra-based physics)

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astronomy
why is it necessary for ultrviolet telescopes to be placed on a space-based platform? thanks

astronomy
Why could the mass of Venus not be deduced from Earth-based observations in the same manner as the masses of most other planets?

Astronomy
How can I tell a north circumpolar star from a south circumpolar one based on its declination and my location?

astronomy
what good has astronomy produced?

astronomy
Two stars in a binary system are determined from their position on the H-R diagram and the mass-luminiosity relation to have a combined mass of 8 M. Their orbital period, P, is 1 year. What is their orbital seperation, a? http://en.wikibooks.org/wiki/Astronomy/Mass

Astronomy
Few question about astronomy: 1.how many centimetres is equivalent to a light-nanosecond 2. How long is an astronomical unit (AU) in light-minutes (1min, i.e., the distance that light travels in a vacuum in one minute)? Please show the calculation if there is any Thanks

business
I need help understandinddifferent ethics duty-based, consequence-based, rights-based, human nature, relativistic and entitlement-based

astronomy
what are the contributions of astronomy?

astronomy
what is the meaning of astronomy?

algebra based physics
Two protons in a nucleus are separated by 8.0×10−15m . What's the potential energy of the pair?

Social Studies
Which of the following is a example of how the government of the roman republic contribute to the democratic? It was based on a Dictatorship It was based on a tripartite system It was based on a triumvirate system It was based on a written set of laws I think it is the second one

astronomy/physics
determine the mass of the earth from the known period (365.25 days) and the distance of the moon (3.84X10^3 km)

Deciding on a H.S. Science Course
I'm currently a sophomore, and I need to plan a science course for next year. Do you know if colleges require physics? Would a college prefer to see physics on my transcript in oppose to Environmental Sciences or Astronomy? Thanks!!

Maths algebra
Larry has an oil painting that he bought for $700 and now wants to sell.How much more profit could he gain by fixing a 30% profit based on the selling price rather than a 30 % profit based on the cost?

Physics
An airplane is circling an airport by traveling a horizontal circular path at a speed of 400 km/h. The bank angle of the wings is 20 degrees. What is the radius of the circular path the plane is flying? I honestly do not know where to start this. And it is an algebra-based ...

SENTENCE
which is correct? Dallas-based (or)Dallas-based-company The case against the Dallas based companywas setteled in Seattle. You don't need a hyphen between based and company.

Physics/Astronomy
What would a person's weight be on Mars compared to one's weight on Earth?

astronomy/physics
Mercury has a semi-major axis of 0.367AU and an eccentricity of e=0.206. Calculate its distance to the Sun at perihelion. Remember to use units of AU in your answer.

astronomy/physics
Use Newton’s Law of Gravity to calculate the force of gravity between a 39 kg person and Earth.

Physics
A dock worker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0 m in the first 6.00 s. What is the mass of the block of ice? *I notice two very common ...

Astronomy/Physics
I cannot calculate the gravitational force between these two objects. I am confused. Jupiter (R=800 million km, M = 2 x 10 to the 27th power kg and a 100 kg person on earth. Please help!

Astronomy
Need some help with Astronomy. I need to figure out the acceleration of gravity on the surface of certain planets. For example, I need to find the acceleration of gravity on Mars when the mass is .11 times the mass of Earth and the radius is .53 times the radius of Earth. ...

Physics(astronomy)
Radio waves and x-rays are similar in what: a) comparable wavelengths b) cannot compare c)have same photon energies On the test, it said those and I picked a. Is that correct? I am nervous T_T

Computer
If you want to create images that can be easily resized, or one that looks like it was created with a pencil or pen, you should choose a __________ graphics package. (Points: 5) bitmap-based colorized raster-based vector-based Is it D

Astronomy
The average distance between the Earth and the Sun is called the astronomical unit (AU), which is about 150 million km (1.5 x 108 km). Jupiter is 780 million km from the sun. a) How far is Jupiter from the sun in astronomical units (AU)? b) Based on your calculation in part a...

Physics/Astronomy
Predict the size of the image of Jupiter if photographed at opposition with a lens having a focal length of 9600 mm ( Assume Jupiter is a disk of 1.43 x 10^5 km and is 6.29 x 10^8 km from the earth).

astronomy
Even though I do not believe the Big Bang is what created the universe(although what people clam the bing bang was would have been similar to what happened when God said "Let there be light" I still have astronomy hw. haha. I am having trouble with this question. The big bang ...

algebra based physics
Three point charges of 2.0 μ C, 4.0 μ C, and 6.0 μ C form an equilateral triangle with each side 2.0cm. Find the electric potential energy of this distribution.

algebra based physics
A proton is held at a fixed position. An electron is placed 0.85m away and released. Find the electron's speed when it's 9.0mm from the proton.

Marketing
Discuss the relative advantages of price-based versus non-price-based competition. Why should most marketers be leery of using a price-based competitive strategy?

science
I have to find out some facts about the dwarf planet vulcan. I have tried wikipedia but it was no help. Can any one please give me some facts or websites that can. This may be what you need. http://www.space.com/scienceastronomy/astronomy/epsilon_vulcan_000804.html

Physics
Summarize two observations that are contrary to the predictions based on Newton’s laws but that confirm Einstein’s explanation of gravity. Indicate how the predictions based on Newton’s theory differ from Einstein’s.

Physics (Astronomy)
Hi, what keeps objects in orbit, for example, preventing the moon from crashing into the earth under the force of gravity? I have read that it speeds up as it gets closer to earth but I don't understand why. Can someone help me? Thanks.

URGENT! PLEASE HELP QUICK PHYSICS
Summarize two observations that are contrary to the predictions based on Newton’s laws but that confirm Einstein’s explanation of gravity. Indicate how the predictions based on Newton’s theory differ from Einstein’s.

Another astronomy (algebra-based physics) question
I’d prefer thorough solutions, but if you can only provide formulas that would solve each part of the problem, that’d be helpful too :-) Thanks! Spinning too fast The rate of rotation of astrophysical objects that are held together by gravity (e.g., stars or planets) ...

Math-please check
The supershots scored over 75 points in each of ten straight games. The newspaper predicts that they will score more than 75 points tonight. Which form of reasoning is this conclusion based on? A. Deductive reasoning, because the conclusion is based on logic B. Deductive ...

English
Posted by rfvv on Wednesday, September 8, 2010 at 1:42am. 1. Based on the sketches he drew outside, Degas painted in his studio. 2. As/While he was based on the sketches he drew outside, Degas painted in his studio. 3. When he was based on the sketches he drew outside, Degas ...

Physics- Algebra based
A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9.10 m/s and her body makes an angle of 80.0° with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude and ...

astronomy
Why is the sky blue?

Astronomy
What is the radius of the sun?

Astronomy
The saros cycle

Physics/astronomy
How many different photons (photons of different frequencies) can be emitted as a hydrogen atom in the fifth excited state falls back directly or indirectly to the ground state?

Criminal Justice/Report Writing
When an investigator writes a conclusion in an investigative report based on his or her opinion, he or she is: A. properly writing conclusions based on personal experiences. B. allowing a conclusion to be inappropriately arrived at in lieu of a conclusion based on fact. C. ...

Astronomy
What is the phenomenon of differentiation and how does it occurs

Astronomy
Why are there different types of galaxies?

astronomy
How long is the precession cycle?

Astronomy
What type of spectrum is sunlight?

Algebra
Why are polynomials important based on the history of factoring and applications of them?

marketing
Budgeting Concepts Paper (10 points). Prepare a 1,050-1,750-word paper in which you compare and contrast two types of operating budgeting concepts. For example, activity-based costing, zero based, line item, management by objectives, performance based, etc.

finanace
Budgeting Concepts Paper (10 points). Prepare a 1,050-1,750-word paper in which you compare and contrast two types of operating budgeting concepts. For example, activity-based costing, zero based, line item, management by objectives, performance based, etc.

Algebra
The Hubble Space Telescope can see stars and galaxies where brightness is 1/50 of the faintest objects now observable using ground-based telescopes. Use the fact that the brightness of a point source, such as a star, varies inversely as the square of its distance from an ...

College Physics 1 (Algebra-based)
Calculate the force required of the "deltoid" muscle, Fm, to hold up the outstretched arm shown in the figure below. The total mass of the arm is 3.31kg. Assume that alpha = 15.2°, d = 12.0 cm and D = 24.0 cm. Figure: tinyurl com/hszqaqw Any help (at least how to set up the ...

Astronomy
The precession of the Earth its causes, and its ramifications

astronomy
What does supernova produce, helium or carbon?

astronomy
What does supernova produce, helium or carbon?

Astronomy
What is the Lorentz factor for a spaceship traveling at 0.5c?

Astronomy
what are the largest stars in the HR diagram called?

astronomy
big bang theory define

Astronomy
How to find the orbital radius of a planet?

astronomy
which of the statment about CMB are true?

Astronomy HELP
when does a full moon rise and set?

Astronomy
F = GM1M2/R2 = (6.67x10-11 x 1.9891x1030 x 25) / (3000)2 =

College Algebra
Deer Valley determined that the cost of these apples was 64 cents per pound. 1. What would be the selling price per pound for the prepackaged apples using a 30% markup based on cost? A 40% markup? A 50% markup? 2. Based on the national average for apples sold on a retail basis...

physics
How to make a project based on physics laws

Algebra
4x-3y=-6 finding the x and y intercept line based on a equation in standard form

Quick math question
Can anyone give me a link to a free online algebra test for 9th graders. I have a test on Monday based on algebra to see if I can move on to Geometery and I need a test to see if I'm ready. Thanks

Physics / Astronomy
Here is my question: Consider the bending of light by the gravitation of the Sun as described by Newtonian physics. Light of frequency f passes at a distance d from the center of the Sun, which has a mass M. Show that the bending angle of the light is proportional to M/d. I'm ...

astronomy
why does Venus have such a high Albedo

astronomy
on which planets would you weih more than on the earth?

Astronomy
Venus orbits 0.72 AU from the sun. What is that distance in kilometers?

Astronomy
Venus orbits 0.72 AU from the sun. What is that distance in kilometers?

Astronomy
Explain what occurs during tidal friction?

Astronomy
How many degrees of longitude does the Sun move in each hour?

ASTRONOMY
Compare Einstein and Newton's pictures of gravity.

AStrONomY
What contributions of Uranus were made by the Voyager 2 program?

Astronomy
The frequency of a radio transmitter is 90 megahertz. What is its wavelength?

Astronomy
Why is it possible to see Mercury at 6:45 pm on February 5, 2014?

Astronomy
How far will Venus be from Earth on February 19, 2014?

astronomy
If the planet is in an edge-on orbit, what would its mass be (in kg)?

astronomy
Mars currently has a liquid convecting core.

Physics (algebra-based)
A child holds a candy bar 13.4 cm in front of the convex side-view mirror of an automobile. The image height is reduced by one fifth. What is the radius of curvature of the mirror? Answer in units of cm. I did 1/5=-image distance (i)/13.4-->i=-2.68 1/f=1/-2.68+1/13.4---->...

math
What is equivalent markup based on cost of a water fountain that is marked up 80% based on the selling price?

math
what is the equivalent markup based on cost of a water fountain that is marked up 69% based on the selling price?

physics /astronomy
If a system has multiple planets all in the exact same orbital plane, does the transit of one planet imply that all planets in the system must transit as well?

Astronomy
Describe in one sentence the rotations and revolutions of the planets.

Astronomy
If the elipse were a planet's orbit where would the sun be on the page?

astronomy
on which planets would you weigh nearly the same as on earth?

Astronomy
what is the size of Venus? What is this asking? Volume, Mass, or diameter? please help.

Astronomy
what is the size of Venus? What is this asking? Volume, Mass, or diameter? please help.

astronomy
How are cepheid and rr lyrae variables used in determining distances?

astronomy
Explain the cause of the Earths' season. I need a diagram for my explanation

U of M astronomy
if a planet has a period of 1 century, what is its average distance from the Sun in AU?

astronomy
What is the electromagnetic flux coming from the surface of a 5000K blackbody?

astronomy
Why the Universe ,as we know it,made of matter,with no antimatter,and what is the role of neutrino? Thanks

Astronomy
Why is it possible to see the planet Mercury at 6:45 pm on February 5, 2014.

Astronomy
What five object were found in the sky on February 5, 2014 at 9 pm.

Astronomy
Why is the portion of Venus opposite the direction of the Sun not apparent.

Astronomy
Why is the portion of the Moon opposite the direction of the Sun not apparent?

Astronomy
How do astronomers know whether they are seeing planets or stars when they are distant?

astronomy
Astronomers can use the color of an object in space to determine its

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