Homework Help: Science: Outer Space

Recent Homework Questions About Outer Space

math-moneyfractions
i have some math questions that i really ,really,need help with asap if any body can explain some of these questions that will be great help.Ok here are 3 of the questions i am about to type now ok the first one says,whole 16 nickels a.circle 3/a of the nickels b.how much ...
Wednesday, February 18, 2009 at 9:18pm

please proofread this essay
A secluded island with warm sandy beaches, a sunset over high cropped mountains, or the beauty and serenity of silence in a magnificent forest. A special place could as extravagant as those or as simple as your favorite cozy chair. They reach out with much more than ...
Wednesday, February 18, 2009 at 7:52pm

Algebra
Swimming space. The length of a rectangular swimming pool is 2x -1 meters, and the width is x + 2 meters. Write a polynomial a(x) that represents the area. Find A (5).
Tuesday, February 17, 2009 at 1:05am

Child Care
The basis of a good child-guidance system is the caregiver's A. arrangement of space in the facility. B. knowledge of child development C. choice of equipment D. schedule of activities. I chose B.
Monday, February 16, 2009 at 7:09am

physics
need HELP!! which of the following exhibits parabolic motion a. stone thrown into a lake b. space shuttle orbiting Earth c. leaf falling from a tree d. train moving along a flat track which of the following does NOT exhibits parabolic motion a. frog jumpping from land into ...
Thursday, February 12, 2009 at 5:16pm

RE
i have to write a poem about 'your expression of the vastness of space/universe as a poem. i have all the ideas in my head about the universe being incredibly vast. but im rubbish at writing poems. Can anyone help or find a useful website that has a poem about this task??
Tuesday, February 10, 2009 at 1:20pm

english
Excerpts from Walt Whitman’s Song of Myself Number 33 Space and Time! now I see it is true, what I guess'd at, What I guess'd when I loaf'd on the grass, What I guess'd while I lay alone in my bed, And again as I walk'd the beach under the paling stars...
Monday, February 9, 2009 at 11:18am

space
how were stars made? by claire
Sunday, February 8, 2009 at 10:36pm

To Happy --
Please repost your math question -- and remove Ms. Sue's and my screen names from YOUR NAME'S space. Thanks. =)
Sunday, February 8, 2009 at 7:40pm

History
I'm designing my energy transformation for my rube goldberg project, and i can't seem to figure out how to design some of them. How could i represent the american boycott of the moscow olympics, the soviet boycott of the Los Angeles Olympics, the signing of the INF ...
Friday, February 6, 2009 at 5:06pm

Physics
Which of the following exhibits parabolic motion? a. a stone thrown into a lake b. a space shuttle orbiting Earth c. a leaf falling from a tree d. a train moving along a flat track what is parabolic motion? which would be a good choice? thanks alot for ur help
Thursday, February 5, 2009 at 10:16am

Marine Science
Organisms on a rocky shore compete for all of the following except? 1) Affection 2) Nutrients 3) Space 4) Light I think the answer might be light but im not sure.
Wednesday, February 4, 2009 at 4:56pm

chemistry
How do you calculate the % empty sapce in 100mL of air. Using Avogadro's number(6.02x10^23) and the average volume of O2 and N2(3.8x10^-24 cm3/molecule). I think you can use the ideal gas law but am not really sure how to do it. I also have a similar question to fund the...
Wednesday, February 4, 2009 at 9:18am

college chem. please help!!
Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen and 66pm for oxygen.
Tuesday, February 3, 2009 at 9:54pm

8th Grade Space and Earth Science
I have two questions about my study guide for my science test tomorrow. Thank you for any answers that I can get! How does the atmosphere give evidence for divine design? How can a satellite telephone user communicate if radio waves reflect off the ionosphere? Perspiration ...
Tuesday, February 3, 2009 at 9:44pm

college chemistry
Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen and 66pm for oxygen.
Tuesday, February 3, 2009 at 9:23pm

english (gurublue or anyone)
I'm stumped on what seems to be a fairly easy question that has been asked of me after reading about "Mike Rose". I will summarize the story and provide the question that has given me the mental block. Simple story... Mike Rose as a kid didn't do well in ...
Sunday, February 1, 2009 at 5:12pm

Algebra
1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a) What ...
Sunday, February 1, 2009 at 1:26pm

Humanities
The style that fills the picture space with figures and uses bright colors and lots of gold is called? a. Romanesque b. Renaissance c. three-dimensional d. gothic e. none of the above
Friday, January 30, 2009 at 12:42am

American Government
Hey guys could you please check this thanks. The directions are either the following statements are true or false. 1. ------ Article I of the constitution refers to the Legislative Branch. Answer: True 2. ----- Congress is made up of two chambers, the senate and the president...
Thursday, January 29, 2009 at 4:47pm

College Prep
Scenerio: Two days ago your manager phoned and said he would like to plan a field contact in order to evaluate your promotional deals and marketing skills. He will meet you at Kroger's, your top account, at 2:00 p.m. You immediatly got antsy because you know how important ...
Wednesday, January 28, 2009 at 10:08pm

space
Keplers second law notes that a planet should move fastes at aphelion. true or false
Tuesday, January 27, 2009 at 11:38pm

st.louse
My task is to research the application of centrifuges for medical, forensic, and industrial purposes, and for testing and training humans. As an extension, im supposed to research and compare the use of centrifuges in space with Earth-bound centrifuges." I'm supposed ...
Sunday, January 25, 2009 at 11:48pm

Physics-Update
An asteroid heads for Earth at 12 km/s. In addition, a NASA space team is able to attach a rocket booster to the asteroid. The rocket booster fires for 10 min after which the asteroid is moving at 28 degrees to its original path to a speed of 20km/s. What is its average ...
Wednesday, January 21, 2009 at 10:29pm

Physics
An asteroid heads for Earth at 12 km/s. In addition, a NASA space team is able to attach a rocket booster to the asteroid, which then allows the asteroid to move at 28 degrees to its original path to a speed of 20km/s. What is its average accleration for acceleartion at (x) ...
Wednesday, January 21, 2009 at 9:49pm

college
Suppose that it takes about 3 days for a space vehicle to travel from Earth to the moon. About how long would it take the same space vehicle traveling at the same speed to reach Pluto?
Monday, January 19, 2009 at 7:05pm

math for teachers
John is building bookcase 73 3/8 inches tall, he wants 5 shelves equally spaced. Where does he drill holes (space between shelf)? Shelf is 3/8 inch thick. Do I add 3/8 for top and bottom? or is shelf 5 bottom? I do not have a clue.
Sunday, January 18, 2009 at 9:15pm

Algebra
We are learning using the log button in algebra. I have a TI-83 calculator. My book says that log10 85 (there is no space between thet 10 and the 85, that's just to show the different numbers) is equal to 1.93 approximately. But I got 85. How do you properly type this in? ...
Saturday, January 17, 2009 at 11:28am

space
what are connstellations? thanks. xx.
Saturday, January 17, 2009 at 11:25am

math
Let S be the set of all measurable functions on [0,1]. Then the set O of all functions in S equal to 0 a.e on [0,1] makes an additive subgroup of a commutative group S. Show that S/O with the distance p(f,g)=indefinite integral(0,1)((|f(x)-g(x)|)/(1+|f(x)-g(x)))dx is a ...
Thursday, January 15, 2009 at 5:33pm

Science-Weather
which statement best explain wy the greenhouse effect incrases earth's average temperature? a. CO2 has a high latent heat b. less infrared raditon escapes to outer space. c. More incoming solar radation is aborbed by the atmosphere. d. less incoming solar radiation is ...
Monday, January 12, 2009 at 5:18pm

Science (weather & climate) -
I just wanted to post this question once more. I have to go offline soon. Please go over my answers. Thanks True or false: 7.Eruptions fom volcanoes decrease global temperatures. I answered false because volcanes spew out CO2 into the atmophere. The 16._________-sphere affects...
Sunday, January 11, 2009 at 7:42pm

Span linear
hello everyone!i'm breaking my head and desperate how to do it... If i have a vector in linear space V:r v1,v2.....vk,a,b having A={v1,v2.....vk,a} B={v1,v2....vk,b} C={v1,v2...vk} and its known that V=sp(A) and b∉sp(C)........ needed to prove 1) a ∈ sp(B) 2) V...
Sunday, January 11, 2009 at 6:04am

Linear Algebra
Hello ! i try to solve Linear algebra 2 questions(but need them be written properly as mathmatical proofs) Having A matrice nXn: 1)proove that if A^2=0 the columns of matrice A are vectors in solution space of the system Ax=0 (x and 0 are vectors of course),and show that p(A)&...
Sunday, January 11, 2009 at 6:01am

sci
Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week’s aXcess page. o After viewing the animation...
Friday, January 9, 2009 at 6:42pm

Child Care Facility
A child care program that operates only in the morning will still reqiure A. a full kitchen with appliances B. napping space C. a quite, semi private space for children D. A refrigerator. I pick the letter B. Can you tell me if I am right.
Tuesday, January 6, 2009 at 7:35pm

math
Can anyone help, my calculator does not have enough space for simplifying this, sqrt[(16*10^113)/250*10^-28]
Monday, January 5, 2009 at 9:54pm

math 6th grade
Using Multiplication to solve equations: 9y-5 had to iron space suits for the astronuts. When he finished he turned in the suits to his commander. The commander counted the suits and realized that 54 of them were missing. 9Y-5 blushed and explained that he had burned 1/4 of ...
Sunday, January 4, 2009 at 9:49pm

7th grade
what science project can i do in the category of space?
Sunday, January 4, 2009 at 6:03am

MAT 116 Algebra 1A
Buying a Home For most people, buying a house is a great investment that can offer security in an uncertain world, but buying a house is also a commitment. Application Practice Answer the following questions. Use Equation Editor to write mathematical expressions and equations...
Thursday, January 1, 2009 at 12:13pm

physics
1) Obtain the binding energies of 4He and 18O in the Hartree-Fock aproximmation. Use as variational space three oscillator shells for every occupied orbit. Don't use the spin-orbit coupling term. 2) Calculate (using oscillator wave functions with the appropiate frecuency...
Tuesday, December 30, 2008 at 2:36pm

science
what science project can i create in the category of space?
Tuesday, December 30, 2008 at 7:32am

Physics
Why is the momentum in a spaceship traveling in space not conserved? Can someone please expain? thanks
Tuesday, December 16, 2008 at 9:42pm

physics
Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes an orbit once every 530 days. a.) ...
Tuesday, December 16, 2008 at 7:16pm

physics
Assuming Earth behaves as a perfect sphere with a radius of 6380 km, the standard gravitational acceleration,g, at sea level has a value of 9.80 m/s^2. a.) As Earth rotates on its axis, objects at the equator experience a slightly different value of g due to additional ...
Tuesday, December 16, 2008 at 7:12pm

space
choose five elements of the universe and tell why they are amazing and wonderous
Tuesday, December 16, 2008 at 5:42pm

Algebra Word Problem
I REALLY NEED YOUR HELP !!!!!!! Suppose it takes 3 days for a space vehicle to travel from Earth to the moon. About how long would it take the same vehichle traveling at the same speed to reach Venus? Closest Distance From Earth to: Moon 240,000mi Venus 26,000,000mi the space ...
Saturday, December 13, 2008 at 5:30pm

geometry
The Hubble Space Telescope is orbiting Earth 600 km above Earth's surface. Earth's radius is about 6370 km. Use the Pythagorean Theorem to find he distance a from the telescope to Earth's horizon. Round your answer to the nearest ten kilometers.
Tuesday, December 9, 2008 at 10:28pm

physics please help
A rod with a diameter of 1.8 cm is used to make the letter A in an 18 by 12 cm space. If the number were to spin about the left side of the space calculate the moment of inertia. The rod has a linear mass density of 4.6 kg/m
Monday, December 8, 2008 at 2:19am

physics
A rod with a diameter of 1.8 cm is used to make the letter A in an 18 by 12 cm space. If the number were to spin about one the left side of the space calculate the moment of inertia. The rod has a linear mass density of 4.6 kg/m.
Sunday, December 7, 2008 at 11:34pm

College Writing
Society sets its own predetermined laws for everyone to follow but sometimes certain people disobey the common norms to hide something deeper within. Whether this society is enclosed within boundaries, or outside in real life circumstances, these people always find a way to ...
Saturday, December 6, 2008 at 9:37pm

Art
Compare and contrast the representation of weight and space in the painting of The Good Shepherd in the Catacomb of Saints Pietro and Marcellino and the mosaic of Justinian and Attendants in Ravenna’s Church of San Vitale.
Friday, December 5, 2008 at 5:00am

5th grade Geomentry
I am a location in space. it takes only one letter to name me.
Tuesday, December 2, 2008 at 10:23pm

English
What are some words that have been added to our language since people began to travel into space???
Tuesday, December 2, 2008 at 3:40pm

Computers (Java)
Hello -- Looking for help with an extra credit assignment to give my grade a needed boost. The program is to display a star pattern with java loops. From prof: Write a program using loops to display the star pattern that follows the written description. You need to ask the ...
Monday, December 1, 2008 at 10:25pm

Computers (Java)
Hello -- Looking for help with an extra credit assignment to give my grade a needed boost. The program is to display a star pattern with java loops. From prof: 7. Write a program using loops to display the star pattern that follows the written description. You need to ask the ...
Monday, December 1, 2008 at 10:08pm

space
Imagine that all gravity in the Universe was magically turned off (except the gravity of the Earth),and everything stopped moving.Earth's gravity will now begin to pull everything in the Universe slowly toward it. True or False?
Monday, December 1, 2008 at 5:33pm

Chemistry
Physical properties are those that you can detect with your senses: sight, hearing, touch, taste, smell. With just a glass of water, you can explore physical properties of water. Activity: Investigating Water glass of drinking water,paper cup,pen,freezer,cooking pot,stove ...
Saturday, November 29, 2008 at 11:38pm

Algebra
I am supposed to write the standard equation of the parabola with the directrix x=1, and the vertex 6,2. I got y-6=1/4p(x-2)^2. Is this correct? I am supposed to graph y+3=-1/12(x-1)^2. I tried to find p, and I got 36. I don't think this could be correct, because the graph...
Saturday, November 29, 2008 at 11:06am

science
what is the amount of light energy reflected back into space called?
Monday, November 24, 2008 at 1:17pm

English
Playing the dice game, have a conversation about what you must do and what you must not do at each place. After that write down the rules as in the example. You should work in pairs. One should roll the dice and according to the number on the dice, he should move the marker. ...
Monday, November 24, 2008 at 5:11am

space
What is space exploration?
Thursday, November 20, 2008 at 7:48pm

space
What is the importance of Space exploration?
Thursday, November 20, 2008 at 7:48pm

physiology
You are a physiologist on a space flight to a distant planet. You discover aliens inhabiting the planet and they are willing to submit to your tests. You discover that the aliens kidney handles the sugar alcohol mannitol just like our kidneys handle inulin(not the same as ...
Wednesday, November 19, 2008 at 9:26am

space
How many planets have rings around them?
Monday, November 17, 2008 at 4:52pm

homework
Multiple Choice 1. If a state law conflicts with a federal law, which provision will likely be at issue? a. Article I b. The Supremacy Clause c. 14th Amendment’s Due Process Clause d. 5th Amendment’s Due Process Clause 2. Concerning Congress’ ability to create ...
Sunday, November 16, 2008 at 12:56am

physics
with earths mass 6 x 10^24 kg and radius6.38 x 10^6, how does the inverse-square law show that in space shuttle territory, 200 km above earths surface, the force of gravity is about 94% that at Earths surface
Friday, November 14, 2008 at 3:54pm

Algebra II
An office building containing 96,000 square ft of spaceis to be made into apartments.There at most 15 one bedroom units,each with 800 square ft of space. The remaining units each with 1200 square ft of space,will have two bedrooms. Rent for each one bedroom is $650 and the two...
Monday, November 10, 2008 at 5:02pm

Physics
A 1300-kg space vehicle falls vertically from a height of 2500 km above the earth's surface. Determine how much work is done by the force of gravity in bringing the vehicle to the earth's surface.
Sunday, November 9, 2008 at 4:48pm

Math Word Problem
At 6am a few bacteria fall into a can of syrup in a broken garbage bag. The conditions of warmth, moisture, and food are perfect for growth and the population doubles every 20 minutes. By 6pm the bacteria are overcrowded and dry and their food is gone.At what time does the ...
Sunday, November 9, 2008 at 1:57pm

chemistry
SOMEONE CAN PLZ EXPLAIN IN DETAIL HOW TO SOLVE THIS PROBLEM..THNKS Molar Volume of Sodium If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Question Estimate the volume, V , of a sodium atom ( Na ) using...
Sunday, November 9, 2008 at 1:05pm

AP Environmental Science
I have a word problem about exponential growth. The problem is... "At 6am a few bacteria fall into a can of syrup in a broken garbage bag. The conditions of warmth, moisture, and food are perfect for growth and the population doubles every 20 minutes. By 6pm the bacteria ...
Sunday, November 9, 2008 at 12:06pm

chemistry
Molar Volume of Sodium If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Question Estimate the volume, V , of a sodium atom ( Na ) using its metallic radius of 186
Sunday, November 9, 2008 at 12:46am

science
Somewhere between Earth and the Moon, gravity from these two bodies on a space pod would canel. Is it closer to the Earth or the Moon? why?
Friday, November 7, 2008 at 7:53pm

science
Please help me!!! I need to create an expieriment but I need to find a way to measure the amount of co2 in an enclosed small space....is it possible? is there a way?
Friday, November 7, 2008 at 8:20am

English
1. Write down the name of the building with a question mark. 2.Write down the name of the building marked with a question mark. 3. Write down the name of the building having a question mark. 4. Write down the name of the building which has a question mark. (Situatation:There ...
Thursday, November 6, 2008 at 9:12pm

Science riddle
You may enter, but you may not come in. You may look through my windows and see nothing outside. I have space, but no room. I have keys, but open no lock.What am I?
Thursday, November 6, 2008 at 8:18pm

math
The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are limited and is a ...
Thursday, November 6, 2008 at 7:30am

Algebra
Once again, I have some confusing problems for math. If you know any answers, even if you only know one, please tell me the answer and walk me through it so I can actually understand how you get to it. Thanks! #1: A space craft travels at a speed of 8/10 of a mile per second. ...
Wednesday, November 5, 2008 at 4:41pm

English
I'm writing a paper in microsoft word, but I am having problem with the spacing of my paragraphs. I want the paper to be double space, but the paragraphs seems to be more than double space. Is there a way to change this?
Monday, November 3, 2008 at 10:20am

Physics (been trying all day)
A 62.6 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 13.3 m/s, propelling the astronaut back to the shuttle. Assuming that the astronaut ...
Sunday, November 2, 2008 at 3:48pm

Physics
A 5.0 104 kg space probe is traveling at a speed of 11000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 4.5 105 N over a distance of 2600 km. What is the final speed of the probe? m/s
Sunday, November 2, 2008 at 1:43am

PHYSICS
Junes Verne in 1865 suggested sending people to the Moon by firing a space capsule from a 255 m long cannon with a launch speed of 11.42 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during launch? Compare your answer with...
Saturday, November 1, 2008 at 7:42pm

physics
Junes Verne in 1865 suggested sending people to the Moon by firing a space capsule from a 255 m long cannon with a launch speed of 11.42 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during launch?
Saturday, November 1, 2008 at 7:08pm

Math
Edward H. White, the first astronaut to spend 20 minutes free-floating in space, had to wear a special suit to protect him from heat, radiation, and particles. the number of layers in his suit is the number that is the only palindrome between 12 and 30. how many layers did his...
Monday, October 27, 2008 at 8:19pm

Algebra
Swimming space. The length of a rectangular swimming pool is 2x - 1 meters, and the width is x + 2 meters. Write a polynomial A(x) that represents the area. Find A(5). I have the polynomial being: A(x)=2x^2+3x If I find A(5): 2*5^2+3*5 2*25+15 65 meters. Is this right?
Monday, October 27, 2008 at 9:18am

Physics Number 3 (Online w/ no teacher)
Many people mistakenly believe that the astronauts that orbit the Earth are “above gravity.” Calculate g for space-shuttle territory, 200 kilometers above the Earth’s surface. Earths’ mass is 6 X 10 to the 24th and its radius is 6.38 X 10 to the 6th (6380 ...
Monday, October 27, 2008 at 8:52am

physics
You are hired to check the technical validity of a futuristic space mystery production. The scene takes place during the rst manned trip to Pluto's moon, Charon. Sally Skywalker is outside the spaceship repairing some hardware, when her safety line to the spaceship ...
Monday, October 27, 2008 at 5:25am

adult education
How do a write this sentence so it is parallel. Every town and city needs more parking space and places where people can recreate, and to have more money from taxes to pay for these things.
Monday, October 27, 2008 at 1:05am

math
a man is building a studio that has a circular base. the interior of studio has a diameter of 40 feet. what is the area of the floor space?
Sunday, October 26, 2008 at 3:29pm

math
the minimum size dance floor that the prom committee is considering 30 by 30 . they assume that this size will allow 100 couples to be on the dance floor at once. how many square feet of dance space per couple does this size allow?
Saturday, October 25, 2008 at 1:13pm

space
what is the lighter colored region around the dark center of a sunspot called
Thursday, October 23, 2008 at 7:19pm

space
from 1700 to 1800 the greatest number of sunspots was just over what
Thursday, October 23, 2008 at 7:17pm

space
in this century what has been the solar cycle number
Thursday, October 23, 2008 at 7:15pm

space
how many years marks the reversal of the suns magnetic field
Thursday, October 23, 2008 at 7:14pm

space
how old is our solar system
Thursday, October 23, 2008 at 7:12pm

space
Describe the stages in the life of a star that has a mass 20 times that of the sun.
Wednesday, October 22, 2008 at 5:22pm

science
Hey I have another question, what is the impact of the space pen to the society?? Thanks sooooooooo much if you can help
Wednesday, October 22, 2008 at 4:02am

Science
Hey I need the answer by tommorrow so can you plzzzzzzz help? Well my question is... Is the space pen still around in the markets?? Thank you soooooooooooooooooooo much if you can help. :)
Wednesday, October 22, 2008 at 2:36am

math
the minimum size dance floor that the prom committee is considering is 30 by 30. they assume that this size will allow 100 couples to be on the dance floor at once. how many square feet of dance space per couple does this size allow.
Tuesday, October 21, 2008 at 8:14pm

Microsoft Word file glitch
I must have hit the wrong key. As I was writing a Microsoft Word document, the whole screen changed and now everytime I hit the "Enter" bar, a black Paragraph symbol prints. Each letter has a dot between it as though I am seeing the visual representation for what the...
Sunday, October 19, 2008 at 8:59am

Physics
determine the distance from earths centre where the force of gravity acting on a space probe is only 11% of the force acting on the same probe at earths surface. Express your answer in terms of earths radius, rE
Tuesday, October 14, 2008 at 7:37pm

Statistics
A box contains five red, three blue, and two white poker chips. Two are selected without replacement. For example, BR is a possible outcome representing the first is blue and the second is a red. BR and RB are different outcomes. a. list the sample space. b. find the ...
Tuesday, October 14, 2008 at 6:38pm

Physics
What is the gravitational field strength at a place 220km above Earth's surface, the altitude of many piloted space flights?
Tuesday, October 14, 2008 at 4:22pm

world history
who was the first woman in space?
Friday, October 10, 2008 at 12:08am

Physics
If a space station must "provide one sixth the magnitude of the acceleration due to gravity on Earth" Can I use 9.81ms^-2/6 or is that too simple? Thanks.
Thursday, October 9, 2008 at 5:09pm

physics
In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 207.9 m long cannon. The final speed of the capsule must reach 11.31 km/s. What acceleration would the passengers experience?
Wednesday, October 8, 2008 at 9:31am

physics
i need help figuring out what formaula to use for finding the final velocity of a rocket. Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12...
Tuesday, October 7, 2008 at 10:40pm

physics
Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration of its burn is 1.90 s. (a) What is the ...
Tuesday, October 7, 2008 at 10:08pm

Ap chemistry
I'm taking ap chemistry also! I was just wondering about how much space they give you on an ap chemistry test the Multiple choice section, is it enough space for work? Do they give you scrap?
Sunday, October 5, 2008 at 8:07pm

space
what are the things controls oxygen?
Tuesday, September 30, 2008 at 5:55pm

accounting
prepare journal entry and adjusting journal entry on these transactions: end of fiscal year is Nov 30,2004 Transactions: A theatre rents out their space from time to time to community groups to earn extra revenue. A local rock band pays $400 per month to use the theatre for ...
Tuesday, September 30, 2008 at 10:13am

Science-8th Grade
5. Volume is an object is how much ________ it takes up. 6. When we measure the temperature of an object in the metric system, we use _______ 7. Scientist say that measuring mass of an object means measuring how much matter something has. What is matter? 8. You are a space ...
Monday, September 29, 2008 at 11:16pm

chemistry/math
If aluminum has a density of 2.78 g/ml, how much space would 32 grams occupy?
Monday, September 29, 2008 at 10:05pm

British Literature, "Paradise Lost"?
Question Twenty-Nine: There are several details that can be seen in the text of “Paradise Lost” that could provide the information to support the claim that Satan is a round character. One example would be: “Th' infernal Serpent; he it was, whose guile / ...
Sunday, September 28, 2008 at 11:45pm

anatomy
If the pleural space lost its negative pressure which of the following would be true? A.Inspiation would be more difficult B.Expiration would be more difficult C.Sufactant wouldnt be needed D. Exchange of oxygen and carbon dioxide would improve I think it is would be D but not...
Saturday, September 27, 2008 at 10:36pm

SAT Practice Essay
It is often the case that revealing the complete truth may bring trouble—discomfort, embarrassment, sadness, or even harm—to oneself or to another person. In these circumstances, it is better not to express our real thoughts and feelings. Whether or not we should ...
Saturday, September 27, 2008 at 2:08pm

Physics
To create artificial gravity, the space station shown in the drawing is rotating at a rate of 0.85 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.85. Each chamber A simulates an acceleration due to gravity of 10.0 m/s2. (a) Find rA. _____m (b) ...
Friday, September 26, 2008 at 10:40pm

physics
the region 0 < r < r1 is a charged insulating sphere with uniform charge density _E, the region r1 < r < r2 contains free space, and the region r2 < r < r3 is an insulating spherical shell with uniform charge density ��_E. What is the electric ...
Tuesday, September 23, 2008 at 2:43pm

space
when the moon changes frorm new to full it is called what?
Sunday, September 21, 2008 at 8:02pm

family of compounds
We have a crossword puzzle that asks, "What is a family of compounds that holds water?" We have a four-letter space for the answer possibly with an "L" in the third space.
Monday, September 15, 2008 at 11:18pm

Science & Art - Gr 12
Note : All feedback will be greatly appreciated! Hey guys, thanks for the help earlier on about the "invisibility cloak". Anyway, I'm interested to know how one would go about generating a fairly independant sphere / ball of pure plasma / electric energy ...
Monday, September 15, 2008 at 5:37am

Math
The Andromeda Constellation is the furthest object we can see with the unaided eye. It is about 22,000,000,000,000,000 km from Earth. Light travels in space at a speed of about 300,000 km/s. Calculate how many years light takes to reach Earth from the Andromeda Constellation? ...
Monday, September 15, 2008 at 12:50am

math
at a mountain village in new guinea it rains on average 6 days a week. determine the probability that it rains on 1. any one day 2. two successive days 3. three sucessive days. what is the sample space/
Sunday, September 14, 2008 at 7:20pm

algebra 1
Cesar threw a 3 on the number cube and moved forward three spaces. He landed on a space that said:"Take a card." The card said:"Go back 5 spaces." Where is Cesar in relation to his starting position before he rolled the number cube?
Friday, September 12, 2008 at 7:47pm

8th grade
HOW DO I COMPLETE A BAR GRAPH? TO ANSWER 1:THE,WHICH IS TITLE,2:NUMBER LINE AXIS,3: NAME LINE AXIS LABLE,4:INTERVAL LENGTH OF THE NUMBER LINE AXIS,5:NUMBER OF BARS TO BE SHOWN,6:INTERVAL WIDTH EACH BAR,7:INTERVAL WIDTH OF EACH SPACE BETWEEN BARS USEING THIS INFORMATION-MANY ...
Thursday, September 11, 2008 at 6:00pm

english- write a teacher
can you please give me an example here in the essay of a transitional word- i don't think i am understanding it really... author: Brent Staples my first victim was a woman-white, well dressed, probably in her early twenties. I came upon her late one evening on a deserted ...
Wednesday, September 10, 2008 at 8:54pm

Science
What is the measure of the size of a body in a three demensional space is called?
Wednesday, September 10, 2008 at 5:33pm

english
I read this essay for my english class but i dont understand what this question is trying to ask me- How does staples avoid having the piece sound like a list even though he includes a lot of examples in small area? How is coherence established between all examples(look for ...
Wednesday, September 10, 2008 at 4:39pm

space
i donot understand what is atmosphere
Tuesday, September 9, 2008 at 5:43pm

Business (Linear Programming)
Wal-Mart, a discount store chain, is planning to build a new store in Rock Springs, Maryland. The parcel of land the company owns is large enough to accommodate a store with 140,000 square feet of floor space. Based on marketing and demographic surveys of the area and ...
Sunday, September 7, 2008 at 12:51pm

Algebra Help
1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a) What ...
Thursday, September 4, 2008 at 9:12pm

Chemistry 2 Ap
The reusably booster rockets of the U.S space shuttle employ a mixture of aluminum and ammonium perchlorate for fuel. A possile equation for this reaction is 3Al+3NH4CLO4---> Al2O3+ AlCl+ 3NO+ 6H2O What mass of the NH4CLO4 should be used in the fuel mixture for every ...
Thursday, September 4, 2008 at 8:02pm

space
Is a halo around the moon or sun a sign of rain or snow approuching?
Thursday, September 4, 2008 at 5:01pm

Physics
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3400 kg space tug and a 6000 kg asteroid. Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are at rest, 420 m ...
Tuesday, September 2, 2008 at 10:06pm

math
List all possible events in the sample space with outcomes A, B, and C.
Tuesday, August 26, 2008 at 10:08pm

AP World History
I started writing my othe essay and will finish the other one later. This essay is due the first day of class so I decided to work on this one and get this one done first. I'll finish the other one later. ______________________ Read 1 of the following books and write a 2-3...
Monday, August 25, 2008 at 9:11am

Reading Com.
What light is to greece, space is to Canada. Awareness in almost every direction lie uninhabited land that has shaped the perceptions of artists, defined national character, determined an architecture and established Canadian way of seeing. Canadian Artists are: a) preoccupied...
Saturday, August 23, 2008 at 9:53pm

earth
give two examples of how exploring space and exploring the ocean depths are similar
Friday, August 22, 2008 at 10:29pm

Science
Write an operational definitoin for each underlined idea in the space provided. The first sentence is.. List the plants found in the ecosystem, with the smallest one first. Smallest one is underlined. So what in wondering is what is an operational definition?
Thursday, August 21, 2008 at 4:30pm

Math Algebra 1
For most people, buying a house is a great investment that can offer security in an uncertain world, but buying a house is also a commitment. Application Practice Answer the following questions. Use Equation Editor to write mathematical expressions and equations. First, save ...
Friday, August 15, 2008 at 8:17am

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