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July 24, 2014

Homework Help: Science: Outer Space

Recent Homework Questions About Outer Space

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Information Technology Principles
If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?
Wednesday, April 6, 2011 at 1:03am

math
at the fair, 3/4 of the students wanted to see the space shuttle exhibit,but only 2/9 of theses students wrote down the address to get more nformation. what fraction of the students got the address?
Tuesday, April 5, 2011 at 11:01pm

Physics
I am stuck on this question and not really sure what to do for it. I think that i can use this equation Q/dt=e*sigma*A*T^4 for it, but i'm not getting the right answer for it. Is this not the right equation? Question: Electronics and inhabitants of the International Space ...
Tuesday, April 5, 2011 at 5:26pm

Representing Text
If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?
Tuesday, April 5, 2011 at 6:41am

Physics
Electrons in a beam incident on a crystal at an angle of 300 have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5A0, and the reflected electrons are passed through a slit .Find the velocities of the electrons passing through ...
Tuesday, April 5, 2011 at 6:20am

Physics
Electrons in a beam incident on a crystal at an angle of 300 have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5A0, and the reflected electrons are passed through a slit .Find the velocities of the electrons passing through ...
Sunday, April 3, 2011 at 3:56pm

Chemistry: Check please, these are hw assignments
1. Gases can be considered fluids. a.) True b.) False Answer: False 2.Gases are not easily compressed. a.) True b.) False Answer: True 3. Gases spread to fill out space. a.) True b.) False Answer: True 4. Increased pressure on a gas at constant temperature will cause the ...
Saturday, April 2, 2011 at 7:39pm

PHYSICS
A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the drawing. As the station rotates, an astronaut in chamber A is moved 3.18 102 m along a circular arc. How far along a circular arc is an astronaut in chamber B moved during ...
Saturday, April 2, 2011 at 2:32pm

Math>>>>if anyone could check my answer
this problem is difficutl for me i have an answer but im unsure so if someone could check my answer please. heres my problem: A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about 9.46 x 10^12km. The ...
Thursday, March 31, 2011 at 11:39pm

MATH
A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about 9.46 x 10^12km. The distance to the spiral galaxy NGC 4603 is about 1.08 x 10^8 light years. What is the distance in km?
Thursday, March 31, 2011 at 8:48pm

Precal
The equation is y=80.4- 11 ln x, 100<x<1500 Which approximates the minmum required ventilation rate in terms of the air sapace per child in a public school class room. In the model, x is the air space per child in cubic feet and y is the ventilation rate per child in ...
Thursday, March 31, 2011 at 5:24pm

math
Jeff put a small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that is 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?
Wednesday, March 30, 2011 at 9:36pm

physics
A 14 kg body is moving through space in the positive direction of an x axis with a speed of 220 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.4 kg, moves away from the point of explosion with a speed of 190 m/s in the positive y...
Tuesday, March 29, 2011 at 11:35pm

phYSICS
the process of charging a conductor by bringing it near another charged object and then grounding the conductor is called... a) charging by contact b) induction c) charging by polarization d) neutralization which one of the following statements is true concerning the madnitude...
Tuesday, March 29, 2011 at 10:20pm

physics
Zero, a hypothetical planet, has a mass of 5.7 x 1023 kg, a radius of 2.8 x 106 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched with an initial kinetic energy of 5.0 x 107 J, what will be its kinetic energy ...
Monday, March 28, 2011 at 12:56pm

Biology - The Stomach
When referring to the lumen of the stomach is that just the opening. As in where are the HCl is and where your food enters? I googled the definition of lumen and it says inside space. I'm just not too clear on what it really means. Thanks.
Sunday, March 27, 2011 at 10:44pm

english
Every now and then, instead of using e-mail, mail a letter to your grandparents. We live in a fast-paced world. We feel comfortable using computers to send e-mails and Instant Message. Nana doesn’t live in that time zone. Forget all those fancy fonts and emoticons or ...
Sunday, March 27, 2011 at 4:42pm

Physics
You are on the Moon and would like to send a probe into space so that it does not fall back to the surface of the Moon. What launch speed do you need?
Saturday, March 26, 2011 at 4:09pm

BUS 210
Content and Development 170 Points Points Earned XX/170 Additional Comments: The student covers all key elements of the assignment in a substantive way. · Reviews the three business problems identified in Week Six paper · Develops technology solutions to the ...
Saturday, March 26, 2011 at 11:04am

grade nine math Polynomials
Mr. Smart just bought a new dog named Fluffy. Mr Smart would like to enclose a play space for Fluffy in his back yard. The 5 side play space has the dimensions, in metres. They are x +11, 2x-4,3x. Write a simplified expression for the number of metres of fencing needed to ...
Friday, March 25, 2011 at 7:44pm

cross word puzzle
This is for tomorrow and i'm in trouble with this puzzle, please help:ACROSS 9 letters and start with (au)the hint is groups of people who watch or listen to a show, speech, or other performance. Down:It starts off with (aw) and the hint is: a synonym for uncomfortable or ...
Thursday, March 24, 2011 at 9:47pm

math
A baseball diamond has 90 ft between each base A sofball diamond has 60 ft between each base How many yards longer is the space between bases an a baseball diamond than a softball diamond?
Thursday, March 24, 2011 at 7:09pm

health
choose a tv show that you enjoy and use the chart to emanine how the characters show empathy toward one another.which actions show compassion?which one don't?once you've completed the chart,pick one sence from the episode and determine how the characters might have ...
Thursday, March 24, 2011 at 5:37pm

physics-telescope
The Hubble Space Telescope (HST) can resolve objects that have a small angular separation because there is no atmospheric distortion of the light. (i.e. The HST has excellent resolving power.) Its 2.4-m-diameter primary mirror can collect light from distant galaxies that ...
Wednesday, March 23, 2011 at 11:22pm

Physics
An 95.0 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 26.3 m behind the ship, at rest relative to the spaceship. The only way to return to ...
Monday, March 21, 2011 at 10:12pm

math/116 algebra
Application Practice Answer the following questions. If appropriate, use Equation Editor to show your work. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. Each part is ...
Monday, March 21, 2011 at 9:12pm

math
the foyer was 8 feet by 8 feet, but the tiles were 4 square feet. how many tiles will they need to fill the space?
Monday, March 21, 2011 at 5:44pm

Physics
A car going 50mi/h overtakes and passes another car moving at 45 mi/h. what length of road is required for the operation? assume that each car is 15 ft long and that there is a 60-ft space between them before and after passing. taking into account the approach of a car from ...
Sunday, March 20, 2011 at 3:38am

math
Translate the following situation into an inequality. Do not solve. “Charlie would like to pack one less outfit than Jane for their trip. Loretta would like to bring five outfits less than twice what Jane packs. Due to space in the suitcase, they are limited to a total of...
Wednesday, March 16, 2011 at 9:38pm

space
what is a small body made of rock and ice in the solar system?
Wednesday, March 16, 2011 at 6:46pm

Math(Probability)
**Describe the outcome space** (a)If a Families that have three children each and select one such family at random. Describe the sample space S in terms of their children as 3-tuple, agreeing for example that "gbb" would indicate that the youngest is a girl and two ...
Wednesday, March 16, 2011 at 10:10am

physics
Engineers are trying to create artificial "gravity" in a ringshaped space station by spinning it like a centrifuge. The ring is 120 m in radius. How quickly must the space station turn in order to give the astronauts inside it apparent weights equal to their real ...
Tuesday, March 15, 2011 at 3:18pm

physics
Two Astronauts A and B are working in the space shuttle in the space.Suddenly the hammer falls from the hands of astranaut in space. who will hear most sound,Astranonaut A or B .and why?
Tuesday, March 15, 2011 at 4:32am

Algerbra
the minimum size of 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? to allow for more dancers, the...
Monday, March 14, 2011 at 10:20am

Math
The circular rug is placed on a square floor. The rug touches all four walls. How much of the floor space is not covered by the rug? The square floor is 14 feet for length and width.
Sunday, March 13, 2011 at 8:30pm

maths exponential functions
Hi I have a Maths quiz on Monday and i have been of sick for the past week. I received these review questions from my teacher via email and he isn't replying to my questions i really do not get these questions if someone can do these and explain to me how they did them it...
Sunday, March 13, 2011 at 7:48am

com/155
Each of the following sentences has one grammatical error. The errors are in one of the following four categories: subject–verb agreement, run-on sentence, verb form and tense, or sentence fragment. Identify which of the four errors, if any, is present in each sentence by...
Sunday, March 13, 2011 at 12:47am

physics
Suppose a cylindrical habitat in space 7.70 km in diameter and 25.0 km long has been proposed. Such a habitat would have cities, land, and lakes on the inside surface and air and clouds in the center. They would all be held in place by rotation of the cylinder about its long ...
Friday, March 11, 2011 at 11:05pm

PHYSICS
How much work is done by the Moon's gravitational field as a 1005 kg meteor comes in from outer space and impacts on the Moon's surface? PLEASEEEEEEEEEE
Thursday, March 10, 2011 at 11:01pm

English
Please check for any errors. Correc them for me and I would appreciate it. Thank you for your interest in Rogers Video Theater. I am enclosing a copy of the leased agreement. The $1695.00 unit can be leased for $98.00 a month for 24 months. The first and last to payments are ...
Thursday, March 10, 2011 at 12:47am

Linear Algebra
1/ Prove that the set V=R+ ( the set of all positive real numbers) is a vector space with the following nonstandard operations: for any x,y belong to R+ & for any scalar c belong to R: x O+ ( +signal into circle) y=x.y (definition of vector addition) & c O ( dot signal into ...
Sunday, March 6, 2011 at 2:14pm

Physics-10
A vehicle that weighs 400N on the surface of the earth is traveling in outer space at a speed of 400m/s. it can be stopped by applying a constant force of 20N for?
Friday, March 4, 2011 at 12:27pm

Physics
A parallel-plate capacitor is made from two plates 12.0cm on each side and 4.50mm apart. Half of the space between these plates contains only air, but the other half is filled with Plexiglas of dielectric constant 3.40. An 18.0 V battery is connected across the plates. What is...
Thursday, March 3, 2011 at 10:07pm

Physics (please help!!!!)
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit and all lher gear is 127 kg. A small leak develps in her pulsion system and 5.84 g of gas are ejected each second into space with a speed of 754 m/s...
Thursday, March 3, 2011 at 7:01pm

physics
An electric space heater draws 15.5 A from a 120 V source. It is operated, on the average, for 5.0 h each day. How much energy in kWh does in consume in 30 days? At 11 per kWh, how much does it cost to operate the heater for 30 days?
Thursday, March 3, 2011 at 6:50pm

Physics
A Vogon’s grandmother, whose mass is 89 kg, drifts through empty space with a velocity of –6.20 m/s until she encounters the 460-kg Ravenous Bugblatter Beast of Traal, drifting with a velocity of +2.80 m/s. When they meet, the RBBoT immediately eats her. What is the ...
Thursday, March 3, 2011 at 6:36pm

algebra
I have a space 43 foot long, and 22 stones 10 1/2" diameter each, how far apart to space them?
Thursday, March 3, 2011 at 2:44pm

Physics (please help)
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit and all lher gear is 127 kg. A small leak develps in her pulsion system and 5.84 g of gas are ejected each second into space with a speed of 754 m/s...
Thursday, March 3, 2011 at 1:26pm

math
Alexandra needs to cut the square pyramid out of cardboard. How much cubic space does she have?
Wednesday, March 2, 2011 at 9:18pm

Biology
A space probe discovers a planet inhabited by creatures who reproduce with the same hereditary patterns as those in humans. Three phenotypic characters are height (T = tall, t = dwarf), hearing appendages (A = antennae, a = no antennae), and nose morphology (S = upturned snout...
Wednesday, March 2, 2011 at 9:10pm

Math
Tennis balls withal diameter of 2.5 in. Are sold in cans of three. The can is a cylinder. What is the volume of the space in the can not occupied by tennis balls? Assume the balls touch the on the sides,top and bottom.
Tuesday, March 1, 2011 at 10:46pm

physics
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3740-kg space tug and a 6500-kg asteroid. They pull on the asteroid with a force of 470 N. Initially the tug and the asteroid are at rest, 480 m apart. How much time does it ...
Tuesday, March 1, 2011 at 1:46pm

Probability
Let A and B be events in a sample space S such that P(A) = 0.6, P(B) = 0.4, and P(A B) = 0.27. Find the probabilities below P(A|B)
Monday, February 28, 2011 at 8:30pm

probability
Let A and B be events in a sample space S such that P(A) = 0.6, P(B) = 0.4, and P(A B) = 0.27. Find the probability P(B|A)
Monday, February 28, 2011 at 8:07pm

Science Urgent Please help
(I have no idea how to even approach this question. Can anyone please help me?) Some people have proposed that the earth could solve its population problem by shipping people off to space colonies, each containing about 10,000 people. Assuming that we could build such large-...
Friday, February 25, 2011 at 9:28am

Math
A cone and a square based pyramid have slant heights of 6 inches . The diameter for the cone and the base edge of the pyramid are both 8 inches. How would I find which space figure has the greater surface area
Thursday, February 24, 2011 at 11:12pm

physics
The International Space Station, launched in November 1998, makes 15.65 revolutions around the earth each day in a circular orbit. Apply Newton's second law to the space station and find its height (in kilometers) above the earth's surface.
Wednesday, February 23, 2011 at 10:55pm

Math
Space C has a base of 20 feet and a height of 24 feet and the two sides are both 26 feet (it is a parrallogram).... Space c will be tiled and used for an eating area. Each tile measures 1 square foot and cost $2. How much will it cost to tile the floor?
Tuesday, February 22, 2011 at 9:12pm

Physics
The space between two points
Tuesday, February 22, 2011 at 1:04pm

statistics
Ms. Kim Mooney in 1989 as part of completing her dissertation at UNH. The dataset was collected to assist in exploring the relationship between the “effect of social stress on blood pressure.” This was investigated by collecting data at six different points (i. ...
Monday, February 21, 2011 at 9:28pm

science
The following is current scientific evidence supporting the nebular theory on the formation of the solar system.' a the composition of the inner and outer planets, current observations of star formation, and the motion of the solar system b current observations of star ...
Monday, February 21, 2011 at 9:26am

english
Axia College Material Appendix B Sentence Structure Review Each of the following sentences has one grammatical error. The errors are in one of the following four categories: subject–verb agreement, run-on sentence, verb form and tense, or sentence fragment. Identify which...
Sunday, February 20, 2011 at 9:52pm

PHYSICS
A capacitor consists of a solid metal sphere of radius 3 cm placed at the center of a thin metal spherical shell of radius 12 cm. The space between is empty. What is the capacitance?
Sunday, February 20, 2011 at 2:01pm

Yr 10 English URGENT
"Write a creative description of a journey you have taken. Focus on the means of transportation and the nuances in particular to that way of travel. Select 10 words from the spelling list to use in your piece of writing and write in the space provided on the answer sheet...
Sunday, February 20, 2011 at 12:27am

Physics
What is the magnitude of the apparent weight of a 65 astronaut 3600 from the center of the Earth's Moon in a space vehicle moving at constant velocity?
Saturday, February 19, 2011 at 6:19pm

physics
A basketball star covers 2.70 m horizontally in a jump to dunk the ball (see figure). His motion through space can be modeled as that of a particle at a point called his center of mass (which we shall define in Chapter 9). His center of mass is at elevation 1.02 m when he ...
Friday, February 18, 2011 at 2:04pm

phy
As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g, where g = 9.80 m/s2. In their training, astronauts ride in a device where they experience such an acceleration as a centripetal acceleration. Specifically, the astronaut is ...
Thursday, February 17, 2011 at 10:26pm

English
Thank you very much for the help! Here is the rephrase I found in the sparknotes. 1) Shakespeare has unhooked his work from time and place. The witches tell us that the next time they meet, it will be with Macbeth, and that this will occur before the sun goes down, when the ...
Thursday, February 17, 2011 at 2:21pm

physics
As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g, where g = 9.80 m/s2. In their training, astronauts ride in a device where they experience such an acceleration as a centripetal acceleration. Specifically, the astronaut is ...
Thursday, February 17, 2011 at 12:30pm

English
Can you please check these sentences I am not sure of. Thank you. 1)The play opens with a meeting of the three witches in some sort of deserted place. The stage is empty: there are no trees, no houses,no people, absolutely nothing. 2) Shakespeare has unhooked (I need a synonym...
Thursday, February 17, 2011 at 8:27am

math
I do not know how to answer this question. Would someone please help me with each of the four question below? Thank you. Question 1. Write the sample space for the outcomes of tossing three coins using H for heads and T for tails. Question 2. What is the probability for each ...
Thursday, February 17, 2011 at 7:57am

English
"Write a creative description of a journey you have taken. Focus on the means of transportation and the nuances in particular to that way of travel. Select 10 words from the speeling list to use in your piece of writing and write in the space provided on the answer sheet...
Thursday, February 17, 2011 at 6:05am

geometry
Side of cube=6cm Sphere is placed in cube.Calculate volume of cube.Calculate volume of sphere.What percentage of the space in the cube does the sphere occupy?
Wednesday, February 16, 2011 at 12:35am

writing
Hilda takes an enormous amount of space, though so little time, in my adolescence. Even today, her memory stirs me; I long to see her again. She was three years older than I, and for a short while all I wanted was to look like, sound like, and dress like her. She was the only...
Monday, February 14, 2011 at 6:49am

Physics
Engineers are trying to create artificial "gravity" in a ringshaped space station by spinning it like a centrifuge. The ring is 170 m in radius. How quickly must the space station turn in order to give the astronauts inside it apparent weights equal to their real ...
Friday, February 11, 2011 at 1:03pm

physics 2 help please!
The space probe Deep Space 1 was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generates only a weak thrust, but it can do so over long periods of time with the ...
Thursday, February 10, 2011 at 7:07pm

physics
A space vehicle is coasting at a constant velocity of 24.7 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 0.228 m/s2 in the +x direction. After 42.3 s, the pilot ...
Thursday, February 10, 2011 at 1:04pm

physics
The earth exerts a downward force of 850 N on a veteran astronaut as he works outside the space shuttle. What force (if any) does the astronaut exert on the earth?
Thursday, February 10, 2011 at 11:26am

Desktop Publishing & Design :Illustrations
1. To be truly effective in a publication, an illustration should A. appear in a darker shade or color than text. B. appear in a lighter shade or color than text. C. complement the document's layout and text. D. feature a thin, dark border. 2. What is the most important ...
Wednesday, February 9, 2011 at 9:01pm

Math (Propogation)
Consider an antenna transmitting a power of 5W at 900MHz. Calculate the received power at a distance of 2km if propagation is taking place in free space.
Wednesday, February 9, 2011 at 8:51pm

PHYSICS PLEASE HELP
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 134 kg. During a space-walk, the unit, which has been completely filled with propellant gas, ejects some gas with a velocity of +32 m/s. As a result, the ...
Wednesday, February 9, 2011 at 5:07pm

Learning Chater School
Dana has a piggy bank(she is just starting to save money in her piggy bank). 1- All of the coins in her bank expect two quarters. 2- All of the coins in her bank except two are nickels 3- All ofthe coins in her bank except two are pennies . How much money does Dana have in her...
Tuesday, February 8, 2011 at 7:30pm

algebra
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. What integer ...
Monday, February 7, 2011 at 2:25pm

English
Can anybody help in evaluating this essay. i have to write an evaluation on it its by Wole Soyinka called Every Dictator's Nightmare With the blood-soaked banner of religious fanaticism billowing across the skies as one prominent legacy of this millennium, Martin Luther&#...
Sunday, February 6, 2011 at 7:12pm

English
I have to evaluate this essay.Can someone help me with this. how to evaluate this. some points on evaluating it. The essay is "Every dictator's Nightmare" by Wole Soyinka. thanks With the blood-soaked banner of religious fanaticism billowing across the skies as ...
Sunday, February 6, 2011 at 5:48pm

physics
A charge of -8.9 µC is traveling at a speed of 7.8 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 60°. A force of magnitude 4.0 10-3 N acts on the charge. What is the magnitude of the ...
Saturday, February 5, 2011 at 5:18pm

physics multiple choice
Far from any gravity, an astronaut accidentally releases a metal wrench inside a spaceship that is traveling at a constant velocity of 250 km/s away from earth in outer space. What will be the subsequent behavior of that wrench as observed by the astronaut? A. It will fall to ...
Wednesday, February 2, 2011 at 8:27pm

Algebra
Suppose a model of the space shuttle "Endeavour" is 10 inches tall. The actual height of the "Endeavour" is 100 feet. What is the scale of the model?
Wednesday, February 2, 2011 at 6:05pm

math
An urn holds 13 identical balls except that 2 are white, 4 are black, and 7 are red. An experiment consists of selecting two balls in succession without replacement and observing the color of each of the balls. How many outcomes are in the sample space for this experiment? How...
Wednesday, February 2, 2011 at 6:03pm

physics multiple choice
Far from any gravity, an astronaut accidentally releases a metal wrench inside a spaceship that is traveling at a constant velocity of 250 km/s away from earth in outer space. What will be the subsequent behavior of that wrench as observed by the astronaut? A. It will fall to ...
Wednesday, February 2, 2011 at 4:43pm

childcare
Questions 1–3 are based on the following scenario: Mrs. Carroll and her sister, Ms. Howard, plan to operate a small day care center in a remodeled building. They're licensed and staffed to handle up to 24 children. Ms. Howard doesn't plan to work at the center and...
Tuesday, February 1, 2011 at 4:07pm

childcare
1. In order to be eligible for accreditation by the NAEYC, an early childhood program must serve a minimum of _______ children. A. five B. six C. ten D. fifteen 2. Which of the following agencies or organizations does not grant certifications? A. State Department of Education ...
Tuesday, February 1, 2011 at 4:06pm

child care
1. The first step to planning a child care center is to A. develop your program philosophy. B. determine the nature of the need for child care facilities in your community. C. establish goals for the children, parents, staff, and community. D. determine which method of ...
Tuesday, February 1, 2011 at 4:01pm

economics
1. Using optimization theory, analyze the following quotations: a. “The optimal number of traffic deaths in the United States is zero.” b. “Anny pollution is too much pollution.” c. “We cannot pull U.S. troops out of Iraq. We have committed so much ...
Monday, January 31, 2011 at 10:52pm

English
I made a few changes to my previous sentences. That's why I'm posting them back to you. Can you see if everything is OK? 1)It is a whitewashed room, in which the boys and the girls are sitting in two compact bodies separated from one another by a space in the middle. 2...
Monday, January 31, 2011 at 3:54pm

English
Can you please check if the following sentences are possible, please? Thank you very much. 1) Th scene takes place in a classroom of M'Choakumchild school. 2)It is a whitewashed room, in which the boys and the girls are sitting in two compact bodies divided up in the ...
Monday, January 31, 2011 at 1:52pm

Science
It would be awesome if you can help me with this :) Two station astronauts each need to perform three 8-hour EVAs during their 13-day mission to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. How much oxygen will be needed to ...
Monday, January 31, 2011 at 12:17pm

physics
A journey consists of two displacements: the first is 500m in a northerly direction and the second is 200m in an easterly direction. In a space below draw, to scale, a vector diagram of these displacements. State the scale of your diagram. On your diagram, show the two ...
Monday, January 31, 2011 at 6:46am

science
If you Weighed 360 pounds on Earth with your space suit on, what would you weigh on the moon? Why?
Saturday, January 29, 2011 at 11:32pm

physical science 2
the force required to maintain an object at a constant velocity in free space is equal to: b: the mass of the object. c: the force required to stop it. d zero
Saturday, January 29, 2011 at 9:13pm

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