Wednesday

April 23, 2014

April 23, 2014

**Recent Homework Questions About Outer Space**

Post a New Question | Current Questions

**Chem**

A student was performing an extraction procedure of o-Xylene from water into octanol. The total mass of o-Xylene was 0.10 gram (molecular weight 106.2 g/mole). The volume of water was 990mL and volume of octanol 10 mL. There is a head space of 200 mL above the solution and it ...
*Wednesday, July 31, 2013 at 9:19pm*

**Business Communications - English 101**

Are you supposed to add actual numbers in the space for the zip code? What punctuation needs to be after "Dear Mr. Sothern" <~~?? The word estate does not need to be capitalized anywhere in this. Ltd <~~needs a period before the comma ... and those are only ...
*Tuesday, July 30, 2013 at 3:18pm*

**physics**

Our muscles atrophy when there is no gravitational force. On long space flights this is a problem, which is why astronauts exercise. On very long space flights it might be advisable to simulate gravity. Your space ship is a long cylinder of radius 100 m that spins about its ...
*Monday, July 29, 2013 at 5:37am*

**problem solving**

How much space does the dining area take up? 100 guests, each guest requires 3m2 in the dining area, the average mass of each guest is 65 kg, and the average density of the dining area is 10kg/m2 How I can resolve this problem?
*Sunday, July 28, 2013 at 6:52pm*

**problem solving**

100 guests each guest needs 3 m2 of space average density of the area is 10kg/m2. how much space does the dining room take up?
*Sunday, July 28, 2013 at 3:59pm*

**Data Structures and Algorithms**

Given integers R,M with M≠0, let S(R,M) denote the smallest positive integer x satisfying the congruence Rx≡1(mod M) if such an x exists. If such an x does not exist, put S(R,M)=0. Each line of this text file contains a pair of space separated integers representing...
*Wednesday, July 24, 2013 at 5:46am*

**earth**

http://www.space.com/15584-solar-eclipses.html https://en.wikipedia.org/wiki/Lunar_eclipse
*Sunday, July 21, 2013 at 12:42pm*

**physics**

The sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature(K) of the sun, given it is a sphere with a 7.00 multiplied by 108 m radius that radiates 3.80 multiplied by 1026 W into 3 K space. (b) How much power(W/m^2)does the...
*Sunday, July 21, 2013 at 3:01am*

**Physics**

The sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature(K) of the sun, given it is a sphere with a 7.00 multiplied by 108 m radius that radiates 3.80 multiplied by 1026 W into 3 K space. (b) How much power(W/m^2)does the...
*Saturday, July 20, 2013 at 10:05pm*

**math**

How would you show the work for this. Bills locker is 30 inches tall, 10 inches wide, and 14 inches deep. If his books take up 1,545 in. of space, how much space does he have left to hang his coat and bookbag? Thank you
*Friday, July 19, 2013 at 9:53am*

**Physics**

A 170 kg astronaut (including space suit) acquires a speed of 2.75 m/s by pushing off with his legs from a 2400 kg space capsule. What is the average change in speed in meters/second of the space capsule?
*Friday, July 12, 2013 at 10:17pm*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*Friday, July 12, 2013 at 9:31am*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*Friday, July 12, 2013 at 9:29am*

**writing**

1)Al:(who's,whose)car is in my parking space? 2)Ben:(it's,its)Fred's. 3)Al:(know,no,his car is red.It might be the Jones'. 4)Ben:(their,there,they're)car is green.(here,hear)come Bob and Tony. 5)Tony:Hi!Isn't my (knew,new)car(grate,great)? 6)Al:(you'...
*Thursday, July 11, 2013 at 3:32pm*

**geometry**

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next foot)?
*Wednesday, July 10, 2013 at 8:27am*

**College Physics**

1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the x-axis).
*Tuesday, July 9, 2013 at 1:46pm*

**Statistics/Probability**

A is correct. I assume you know that rock wins over scissors, paper wins over rock, and scissors wins over paper. For the other parts, make a tree diagram complete with corresponding probabilities and sum all the appropriate outcomes to get the probability. Example: R=rock, P=...
*Sunday, July 7, 2013 at 2:43pm*

**Statistics/Probability**

1. Two roommates, roommate A and roommate B, are about to go cruising with a mutual friend and are arguing over who gets to sit in the front seat. Roommate A suggests a game of rock-paper-scissors to settle the dispute. Consider the game of rock-paper-scissor to be a ...
*Sunday, July 7, 2013 at 11:34am*

**probability**

For a family with 2 children, the sample space indicating boy (B) or girl (G) is BB, BG, GB, and GG. If each of the outcomes is equally likely, find the probability that the family has 2 girls, given that the first child is a girl.
*Saturday, July 6, 2013 at 1:25am*

**Stats**

An even number is any of 2,4,6,8,10,and 12 (within the sample space above). So the probability of throwing a sum equal to an even number is the sum of the corresponding probabilities, namely: 1/36+3/36+5/36+...1/36.
*Tuesday, July 2, 2013 at 6:48pm*

**physics**

The Space Shuttle travels at a speed of about 5.45 x 103 m/s. The blink of an astronaut's eye lasts about 111 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?
*Friday, June 28, 2013 at 1:54am*

**Math**

You are given the job of laying carpet for a six-story building. At each floor the dimensions of the floor are 75 meters in length by 40 meters in width. A stairwell takes up a space 2.5 m by 1.5 m, and cuts through each floor. If the rest of the floor area is to be carpeted, ...
*Wednesday, June 26, 2013 at 9:17pm*

**physics**

A spaceship is traveling through deep space towards a space station and needs to make a course correction to go around a nebula. The captain orders the ship to travel 2.9 106 kilometers before turning 70° and traveling 2.7 106 kilometers before assuming the path towards ...
*Wednesday, June 26, 2013 at 2:53am*

**Math**

I have a question my brother asked me but I need a math expert. You have two interlocking circles and the radius of circle B goes through the center of circle A and of course the radius of circle A goes through the center of circle B. The radius of each circle is 30 feet. Now...
*Tuesday, June 25, 2013 at 1:03am*

**statistics**

3. Magnetic resonance imaging (MRI) is a process that produces internal body images using a strong magnetic field. Some patients become claustrophobic and require sedation because they are required to lie within a small, enclosed space during the MRI test. Suppose 29% of all ...
*Sunday, June 23, 2013 at 9:50pm*

**physics**

A space vehicle is coasting at a constant velocity of 24.9 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.338 m/s2 in the +x direction. After 53.7 s, the pilot ...
*Sunday, June 23, 2013 at 3:12pm*

**managerial economics**

Using optimization theory, analyze the following quotations: a. “The optimal number of traffic deaths in the United States is zero.” b. “Any pollution is too much pollution.” c. We cannot pull U.S. troops out of Iraq. We have committed to such already.”...
*Friday, June 21, 2013 at 1:34pm*

**Geometry**

A. Derive the distance formula (d) shown below for points A = (x1, y1) and B = (x2, y2). 2 2 1 2 2 1 d = (x − x ) + ( y − y ) Note: Look for an application of the Pythagorean theorem where the red line, segment AB, is the hypotenuse of a right triangle. You can ...
*Monday, June 17, 2013 at 8:37pm*

**space**

Consider a situation where immediately after birth, twins are separated. One continues to live on earth, while the other is whisked away in a space ship at 90% of the speed of light. After 65 years they are reunited. Will they look the same? Show proof of your answer through ...
*Thursday, June 13, 2013 at 1:05am*

**Theather Appreciation**

HENRIK IBSEN 1. Which of these eras is Ibsen considered to be the Father of? a. Symbolism Era b. The Poetic Age c. Romanticism d. Modern Drama 2. Where is Henrik Ibsen from? a. Romania b. Finland c. Ireland d. Norway 3. According to his power point, which was the first poetic ...
*Wednesday, June 12, 2013 at 3:16pm*

**Statistics**

Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.34, P(B) = 0.41, P(A | B) = 0.2
*Saturday, June 8, 2013 at 3:27pm*

**chemistry**

1.what are amber light from traffic signal? 2. what are cosmic rays from outer space?
*Saturday, June 8, 2013 at 2:18am*

**English**

1) The are two schools of thought about barrel ageing, proponents of which can be grouped as traditionalists and modernists. 2) Traditionalists support the idea that the wine should be made according to traditional principles [<~~ADD COMMA HERE] thus allowing long ...
*Friday, June 7, 2013 at 11:09am*

**math**

A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities. (Enter the probabilities as fractions.) (a) P(two of diamonds) 1 (b) P(two) 2 (c) P(diamond) 3
*Friday, June 7, 2013 at 12:24am*

**English**

1. Baozi is a steamed bread stuffed with meat, vegetables, and red beans. The comma after "vegetables" is not required, but is usually a very good idea to get in the habit of using so that your ideas are not misread. See #1 here, the serial or Oxford comma: http://...
*Thursday, June 6, 2013 at 7:27am*

**English**

1 and 3 are correct, as long as you put a space after those commas. They NEED the commas (so 2 and 4 are incorrect). This construction is called coordinate adjectives. See #5 here: http://grammar.ccc.commnet.edu/grammar/commas.htm
*Thursday, June 6, 2013 at 7:20am*

**English Composition II**

I disagree also, and would fire an employee who continued to double space the lines. What a task to speed read that.
*Tuesday, June 4, 2013 at 9:24pm*

**English Composition II**

Modern memos expedite the reader’s task by featuring: B.double spaces between each line, without any space between paragraphs.
*Tuesday, June 4, 2013 at 9:05pm*

**English Composition II**

Modern memos expedite the reader’s task by featuring: A. fully developed, very long paragraphs. B. double spaces between each line, without any space between paragraphs. C. lots of boldfaced and/or italicized terms. D. shorter blocks of text.
*Tuesday, June 4, 2013 at 8:55pm*

**English**

You're right, I think. Let's take an old myth about UFOs. Some people believe it, although it is not true. They refuse to believe that there are no space shifts with aliens. Many people are quick to believe hoax emails. Some people don't believe in scientifically ...
*Monday, June 3, 2013 at 5:11pm*

**arithmetic**

Did you read your other post? http://www.jiskha.com/display.cgi?id=1370132243 Set up a table of outcomes and the corresponding probabilities to create the probability distribution. For example, the lowest outcome is X=2 (=1+1) with probability 1/36. then X=3 (1+2 or 2+1...
*Sunday, June 2, 2013 at 7:06pm*

**arithmetic**

Set up a table of outcomes and the corresponding probabilities to create the probability distribution. For example, the lowest outcome is X=2 (=1+1) with probability 1/36. then X=3 (1+2 or 2+1) with probability 2/36 ... X=12 (=6+6) with probability 1/36. Find the mean using E(...
*Sunday, June 2, 2013 at 12:30pm*

**chemistry**

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between numbers. If you must...
*Sunday, June 2, 2013 at 11:43am*

**Physics 1 College Level**

If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!
*Saturday, June 1, 2013 at 4:09pm*

**Probability**

Expectation = ΣxP(x) where x represents the gain from each of the outcomes in the sample space. Here the gains and probabilities are: outcome=oil gain=375000-25000=350000 P(oil)=1/40 xP(oil)=8750 outcome:gas gain=130000-25000=105000 P(gas)=1/20 xP(gas)=5250 outcome:...
*Saturday, June 1, 2013 at 9:20am*

**chemistry**

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between numbers. If you must...
*Saturday, June 1, 2013 at 8:15am*

**chemistry**

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between numbers. If you must...
*Saturday, June 1, 2013 at 1:22am*

**math**

Hints: Work out the following: - equal numbers of red marbles and yellow marbles (call x=number of red x=number of yellow - twice as many green marbles as red marbles 2x=number of green Now work out the sample space and the corresponding probabilities.
*Friday, May 31, 2013 at 9:07pm*

**math linear equations**

correct. Online, it's best to leave a space after fractions, so it doesn't look like 3/(4x) 3/4 x is better or (3/4)x
*Friday, May 31, 2013 at 2:31pm*

**math**

This is perfect for a Venn diagram. Draw three intersecting circles, where there is a non-empty space where all three circles intersect. Start from the center and work your way out. The center area contains 4. 9 used carpool and bus. Of those, 4 used all three methods, leaving...
*Friday, May 31, 2013 at 11:29am*

**math**

Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your answers as fractions.) Red...
*Thursday, May 30, 2013 at 11:15pm*

**english 2**

The paragraph below needs to be made more coherent. Use repetition, synonyms, and pronouns to link the sentences. Type the improved paragraph in the space provided on the following page Many cities are easily distinguished by their skylines. In such cities--New York and Paris...
*Thursday, May 30, 2013 at 2:22pm*

**Math/Statistics**

A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
*Wednesday, May 29, 2013 at 10:44pm*

**Math/Statistics**

Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
*Wednesday, May 29, 2013 at 10:43pm*

**physics**

The Sun radiates about 4 × 1026 J of energy into space each second. How much mass is released as radiation each second? The speed of light is 3 × 108 m/s. Answer in units of kg
*Wednesday, May 29, 2013 at 1:19am*

**Math/Statistics**

Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
*Tuesday, May 28, 2013 at 4:21pm*

**math**

A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
*Tuesday, May 28, 2013 at 4:20pm*

**Statistics**

Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your answers as fractions.) Red...
*Monday, May 27, 2013 at 10:14am*

**Statistics**

Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your answers as fractions.) Red...
*Sunday, May 26, 2013 at 3:28pm*

**statistics**

A and B are events defined on a sample space, with the following probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A) = 0.5 and P(B | A) = 0.4
*Sunday, May 26, 2013 at 2:10pm*

**help!!!!! Probability!!!**

Assume die is fair. Rolling twice gives 36 outcomes, of which the second roll is strictly less than the first (successes) can be enumerated as follows: 21,31,32,41,42,43,51,52,53,54,61,62,63,64,65 Count how many successes there are, and divide by the size of the sample ...
*Sunday, May 26, 2013 at 12:36pm*

**statistics**

I have got all the other parts but not sure how to come up with this part????In a national survey of 500 business and 500 leisure travelers, each was asked where they would most like "more space." ----------------------------------------...
*Sunday, May 26, 2013 at 10:54am*

**child daycare**

Which of the following is one of the steps for successful inclusion? A. Provide every program requested. B. Modify appropriate environments and curriculum. C. Organize all children in an assigned, designated area. D. Use every inch of space in designated areas. answer C ...
*Saturday, May 25, 2013 at 9:56pm*

**polynomials am i doing it right?**

You're on the right track... 1. expand it and write it out when it is a subtraction: (x^4+7x^3+7)-(2x^4-4x^3+1) = x^4+7x^3+7) -2x^4+4x^3-1 = -x^4 + 11 x^3 + 6 2. space out your terms to avoid losing some of them. (3n^3 + n^2 -n -4)+(5n^3 -4n^2 + 11) = 3n^3 + n^2 -n -4 + 5n...
*Saturday, May 25, 2013 at 10:25am*

**Physics help**

The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as Hubble's constant. The evolution of ...
*Thursday, May 23, 2013 at 11:26pm*

**Math (Probability)**

The size of the sample space of the last throw is 20*20=400. Out of the 400 outcomes, Bret needs those where his throw is 11 or more than Shawn's, namely: (12,1),(13,1),(14,1)...(20,1) (13,2),(14,2)...(20,2) ... (19,8),(20,8) (20,9) There are ∑(i), i=1,9 outcomes. Can ...
*Tuesday, May 21, 2013 at 6:33am*

**7th grade math help**

Assuming one must make a single choice in each group, so it is a three-step experiment. choices for group 1 = 2 choices for group 2 = 3 choices for group 3 = 2 Total number of outcomes in the sample space is therefore the product of the choices in each group (step).
*Monday, May 20, 2013 at 6:35pm*

**Grammar (Ms. Sue)**

Rewrite the sentences below that contain errors in pronoun-antecedent agreement. If a sentence is correct, write "correct." 1. Max is learning skills that you need to be an astronaut. 2. Some of my friends wrote to NASA in his spare time to find out how to become an ...
*Monday, May 20, 2013 at 5:37pm*

**science**

Motion along a straight line, such as an axis, In this case,its the general movement of any object without the rotational component. In inertial translational motion without rotation the object always keeps the same inertial attitude. Rotation and translation together provide ...
*Sunday, May 19, 2013 at 6:48pm*

**math**

Mark flips a coin twice. How many outcomes are in the sample space?
*Friday, May 17, 2013 at 7:43am*

**math**

Mark flips a coin twice. How many outcomes are in the sample space
*Thursday, May 16, 2013 at 7:58pm*

**Geometry**

A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder? (Use 3.14 as an approximation of .)
*Wednesday, May 15, 2013 at 1:59pm*

**Science 1 question SPACE**

well i guess there is no such path on images, but thanks Ms.Sue for trying
*Tuesday, May 14, 2013 at 10:55pm*

**Science 1 question SPACE**

http://www.google.com/search?q=earth+to+Uranus&hl=en&source=lnms&tbm=isch&sa=X&ei=9vaSUa_jKKOTyQHDgoHwCw&ved=0CAcQ_AUoAQ&biw=711&bih=453 http://www.google.com/search?q=earth+to+Uranus&hl=en&source=lnms&tbm=isch&sa=X&ei=9vaSUa_jKKOTyQHDgoHwCw&...
*Tuesday, May 14, 2013 at 10:47pm*

**Science 1 question SPACE**

I re-posted this question because noone helped and I need help fast! I am doing a project on the planet uranus and I need a map showiong the path to my planet that i have chosen. The picture of the path must include asteroids, comets or other interesting objects. I am having ...
*Tuesday, May 14, 2013 at 10:42pm*

**Science space**

I am doing a project on the planet uranus and I need a map showiong the path to my planet that i have chosen. The picture of the path must include asteroids, comets or other interesting objects. I am having so much trouble looking for such a picture. I have tried looking on ...
*Tuesday, May 14, 2013 at 10:18pm*

**physics**

the space shuttle typically orbits 400 km above the earths surface. The earth has a mass of 5.98 * 10^24 kg and a radius of 6380km. A) How much would a 2000 kg part for the space station weigh when it has been lifted to that orbit in the shuttles cargo bay? B)Use your result ...
*Tuesday, May 14, 2013 at 7:54pm*

**math probability-PLEASE HELP -thanks**

thanks for helping me! You spin the spinner twice. draw a tree diagram and list sample spaces to show the possible outcomes. From that answer questions 1,2 and 3. The spinner is 4 equal parts for a, b, c ,d I know the tree diagram- you Have a,b,c,d, and from each of those ...
*Sunday, May 12, 2013 at 2:46pm*

**math probabilty- please help**

You spin the spinner twice. draw a tree diagram and list sample spaces to show the possible outcomes. From that answer questions 1,2 and 3. The spinner is 4 equal parts for a, b, c ,d I know the tree diagram- you Have a,b,c,d, and from each of those letters ex. A has four ...
*Saturday, May 11, 2013 at 2:57pm*

**math help**

) Brian has 96 feet of fencing to enclose a rectangular space in his yard for his dog. He wants the rectangle to be twice as long as it is wide. Write and solve an equation to find the dimensions of the rectangle.
*Friday, May 10, 2013 at 9:59pm*

**math**

You spin the spinner twice. draw a tree diagram and list sample spaces to show the possible outcomes. From that answer questions 1,2 and 3. The spinner is 4 equal parts for a, b, c ,d I know the tree diagram- you Have a,b,c,d, and from each of those letters ex. A has four ...
*Friday, May 10, 2013 at 4:23pm*

**Lang. Arts**

select the pronoun that belongs in the underlined space. 1.___ of the people in Sri Lanka are Sinhalese,2._______are Buddhist by tradition. A smaller percentage are Tamil, of Hindu background. Civil wars have torn apart the small nation,3._____is a bloody and violent history. ...
*Friday, May 10, 2013 at 10:53am*

**Music**

3. Middle C and the D next to it is one step. -True? 10. A sharp written before an F on a staff applies to a. F and G b. All F's on that one line or space in that measure c. Only that note d. Always two notes C?
*Thursday, May 9, 2013 at 3:32pm*

**geo**

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next foot)?
*Thursday, May 9, 2013 at 1:31pm*

**math**

Assuming the dice are 6 sided, there are 36 possible outcomes to this situation, 6X6. How many are multiples of 7? Check the sample space, none of them are multiples of 7,impossible to get without a 7 involved.
*Wednesday, May 8, 2013 at 9:55pm*

**Geometry **

One right circular cone is set inside a larger circular cone. The cones share the same Axis, the same vertex, and the same height. Find the volume of the space between the cones of the diameter of the inside cone is 6in., the diameter of the outside cone is 9in and the height ...
*Monday, May 6, 2013 at 1:03pm*

**statistics **

A test has 1 true false question and 2 multiple choice questions(A B C D). Draw a tree diagram and determine the sample space for the possible ways to answer the test.
*Sunday, May 5, 2013 at 9:00pm*

**Physics**

a magnetic rail gun is constucted to give a space vehicle its intial launch velocity, thereby reducing the amount of fuel the vehicle has to carry. it consist of two very long parallel rails across which is positioned a large current carrying crossbar 7.65 m long. The crossbar...
*Saturday, May 4, 2013 at 5:32pm*

**Science**

Does the energy move from Earth’s surface and atmosphere out to space through radiation, conduction, or convection? Explain.
*Thursday, May 2, 2013 at 3:32pm*

**Math**

Juan's model locomotive is 7 5/8 in long HIs coal car is 6 1/4 in long when hooked together there is a 7/8 inch space between the cars. What is the total length when the two cars are hooked together? I added the fractions and got 13 7/8 what do I do with the 7/8 in space ...
*Wednesday, May 1, 2013 at 6:05pm*

**physics**

Please leave space between words.
*Wednesday, May 1, 2013 at 3:13pm*

**Science**

gravitational forces are be acted on a space center what other data need to show the forces a-direction of the opposite force b-magnitute of the downward force graviatational forrces are being acted on a space station i think what other of the two data are needed to fully show...
*Tuesday, April 30, 2013 at 10:58pm*

**science**

graviatational forrces are being acted on a space station i think what other of the two data are needed to fully show the center being in gavity or motion or what other of the two are being acted on the space center
*Tuesday, April 30, 2013 at 10:47pm*

**science**

gravitational forces are be acted on a space center what other data need to show the forces a-direction of the opposite force b-magnitute of the downward force rigth answer: b
*Tuesday, April 30, 2013 at 9:02pm*

**Math**

A jar contains 1 blue crayon, 1 green crayon, 1 black crayon, and 1 red crayon. You grab 1 crayon without looking. Find the sample space for this experiment.
*Tuesday, April 30, 2013 at 1:57pm*

**Math**

A Competitive Coup in the In-Flight Magazine. When the manager for market intelligence of AutoCorp, a major automotive manufacturer, boarded the plane in Chicago, her mind was on shrinking market share and late product announcements. As she settled back to enjoy the remains of...
*Monday, April 29, 2013 at 3:17pm*

**chem**

For the following combination of reactants, enter the formulae of the products in the space provided and give their states. (Separate multiple products with a comma ",". Type your answer using the format Na2SO4(aq) for Na2SO4(aq). Do not balance the equation. If ...
*Sunday, April 28, 2013 at 7:44pm*

**math**

Is there supposed to be a space between 6 and 5? Or is it ? 65x=1296
*Saturday, April 27, 2013 at 6:42pm*

**physics**

two charge 5NC and -2NC are placed at a point (5cm,0,0)and (23cm,0,0)in a region of a space where there is no other electric field.calculate the electrostatic potential energy of this charged system
*Saturday, April 27, 2013 at 3:25am*

**math probablity**

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes). ??????
*Friday, April 26, 2013 at 9:51pm*

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