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April 16, 2014

Homework Help: Science: Outer Space

Recent Homework Questions About Outer Space

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space science?
Antares
Monday, March 18, 2013 at 9:15pm

chem
I will omit the aq in order to save space. Ba(ClO3)2 + Na3PO4-> Ba3(PO4)2(s)+NaClO3 There are trial and error; however, with a little practice you can do these easily. Here is what I do. I look on the right and see I MUST hae 3Ba and 2 PO4 on the left so I place a 3 for Ba(...
Monday, March 18, 2013 at 6:45pm

Math
You really have 38 feet to work with because of the five on each end. each window-space unit takes 11 feat 3 of them take up 33 feet now we can put one last window from 33 to 38 so 4 windows.
Monday, March 18, 2013 at 6:19pm

Physics
A test charge of +3.00 10-6 C experiences a downward electrostatic force of 11 N when placed at a certain point in space. What are the magnitude and direction of the electric field at this point?
Monday, March 18, 2013 at 3:23pm

math
No space?!? Lol I need help!
Sunday, March 17, 2013 at 6:36pm

math
No space?!? Lol I need help!
Sunday, March 17, 2013 at 6:27pm

math
No space?!? Lol I need help!
Sunday, March 17, 2013 at 6:26pm

Math
Given that a sample space is discrete if it contains either a finite number of points or a countably infinite nunber of points and a sample space is continuous if it contains uncountable number of points 1) if two distinct points on a circle radius 'r' are chosen at ...
Sunday, March 17, 2013 at 5:56am

Astronomy
Gravitational waves are oscillations in the space-time geometry, they can be detected by measuring distances between freely floating objects. So, its's the first answer, but the objects are not really "fixed".
Saturday, March 16, 2013 at 9:06am

Astronomy
Mergers of two supermassive black holes will be major sources for observations of gravitational waves in the future. What do gravitational detectors aim to detect? -Tiny shifts of fixed objects due to the rippling of space. -Sound waves carried by cosmic ray particles. -Tiny ...
Saturday, March 16, 2013 at 1:39am

English
In And don't forget to put a space after the comma.
Friday, March 15, 2013 at 2:40pm

Physics 1
An astronaut in her space suit has a total mass of m1 = 76.9 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she's on a spacewalk. Initially at rest with respect to her spacecraft, she throws her oxygen tank of mass m2 = 12....
Thursday, March 14, 2013 at 5:51pm

math
my method works for any odd-numbered square draw the square, add an imaginary row to the top and an imaginary column at the right start with 1 in the middle of the top row and and place consecutive numbers following a righ diagonal pattern. If you reach the imaginary top row, ...
Wednesday, March 13, 2013 at 9:47pm

early childhood
which of the following is best suited to a formative assessment of progress 1. muscular strength snd endurance 2. body fat analysis 3. flexibility 4. qwareness of self and space
Wednesday, March 13, 2013 at 8:31pm

maths (statistics)
A coin is constructd such dt tail cn appear 4 time as likely as d head appear. Dis coin is tossd wit a fair die. Define X= no of head on coin + no of head on die. 1. Wryt out d sample space 2. Whts d prob. Of X is 14. 3. Pr(X<=10) 4. Pr(X>=14)
Wednesday, March 13, 2013 at 5:10pm

English II
The following paragraph is quite sketchy. Provide additional support for the topic sentence, and revise the whole paragraph so that you can answer yes to each of the questions in Lesson 6. Type the paragraph in the space below. Newspapers are great. Many people think ...
Wednesday, March 13, 2013 at 1:19pm

English II
In the space provided, write a paragraph of cause and effect. You may use one of the topics below or one of your own choosing. Mention at least three causes and their three effects. -friendship as a two-way street -television and preschoolers -vitamin deficiency in teenagers -...
Wednesday, March 13, 2013 at 1:18pm

English II
Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the revised paragraph in the space provided. 1. Does the paragraph have a clear purpose, and does each sentence contribute to that purpose? 2. Is every ...
Wednesday, March 13, 2013 at 1:06pm

Physics
A certain coaxial cable consists of a copper wire, radius a , surrounded by a concentric copper tube of inner radius c . The space between is partially filled (from b out to c ) with material of dielectric constant K. The goal of this problem is to find the capacitance per ...
Wednesday, March 13, 2013 at 12:10am

Math
Ms Washington buy a refrigerator that is 6 feet high, 3feet deep and 4 feet wide ,how many floor space does she need to fit the refrigerator
Tuesday, March 12, 2013 at 7:06pm

English
The space shuttle was both a marvel and huge. Parallel Sentencce?....
Tuesday, March 12, 2013 at 4:22pm

Statistics
*Give all probabilities to two decimal places. Three daily newspapers are published in a large city. Suppose we have the following facts about the people in the city: 60% read Newspaper A. 34% read Newspaper C. 72% read Newspaper A or Newspaper B. 18% read Newspaper A and B. ...
Tuesday, March 12, 2013 at 1:09pm

Statistics
A box contains five numbered balls (1,2,2,3 and 4). We will randomly select two balls from the box (without replacement). (a) The outcome of interest is the number on each of the two balls we select. List the complete sample space of outcomes. (b) What is the probability of ...
Tuesday, March 12, 2013 at 1:06pm

Quantum M.
Why "In Hilbert Space noone can hear you scream"?
Sunday, March 10, 2013 at 9:37am

physics
An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. (a) What is the electric field energy density at P? (b) A parallel-plate capacitor whose plates have area 0.110 m2 has a uniform electric field between its plates with the same ...
Friday, March 8, 2013 at 4:48pm

Algebra
If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space ....the number of pigeons is odd. And, numberpigions=numberpoles*2+1 TIf there were exactly 3 pigeons sitting on each telephone pole, then there would be 1 telephone pole with no ...
Friday, March 8, 2013 at 5:54am

Algebra
Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
Thursday, March 7, 2013 at 10:49pm

Algebra
Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
Thursday, March 7, 2013 at 10:49pm

Algebra
Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
Thursday, March 7, 2013 at 10:49pm

Physics-VASTS
The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE camera contains the ...
Thursday, March 7, 2013 at 4:29pm

Economics
I have to do a housing project for economincs class. I have to pick a house. It has to include what kind of house it is and the square footage of the house and the square feet of the living space. Where would I search for this information
Wednesday, March 6, 2013 at 11:17am

Economics
I have to do a housing project for economincs class. I have to pick a house. It has to include what kind of house it is and the square footage of the house and the square feet of the living space. Where would I search for this information
Wednesday, March 6, 2013 at 9:59am

physics
The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What is the wavelength of visible light emitted at 7.2 × 108 MHz? Answer in units of m
Tuesday, March 5, 2013 at 7:02pm

penn foster Main ideas
Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. A greenhouse used for plants stays warm because sunlight and heat coming through the glass roof are mostly trapped. The heat doesn't radiate back into the atmosphere ...
Tuesday, March 5, 2013 at 9:52am

Physics
Point charges Q1 ,Q2 , and Q3 reside on three corners of a square with sides of 1m ; the distance from Q2 to P3 is 2m (see diagram). (a) What is the electric potential,V , at P1 ? (Normalize the potential to be zero at infinity and give your answers in Volts). incorrect What ...
Tuesday, March 5, 2013 at 9:02am

math
Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
Tuesday, March 5, 2013 at 8:51am

logic
Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
Tuesday, March 5, 2013 at 12:32am

Physics
Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are repulsive. Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the elemental ...
Sunday, March 3, 2013 at 10:01am

calculus
Suppose you have 400 meters of fencing and you wish to enclose a rectangular space with two parallel partitions: What is the maximum total area of the enclosed space, in square meters?
Saturday, March 2, 2013 at 9:41pm

Com/330
Space data transmission with error correcting codes, and the multiplexing of voice and data over the same channel. Bless Dr Shannon and Shannon's law http://en.wikipedia.org/wiki/Shannon%27s​_law
Saturday, March 2, 2013 at 7:05pm

Physics
A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from different stars and planets
Friday, March 1, 2013 at 8:08pm

DVC
use the inverse square law to show that in space shuttle territory, 200 kilometers above 94 percent of that at earths surface??
Friday, March 1, 2013 at 5:23pm

physics
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. The temperature of the gaseous planet varies linearly with the height of the atmosphere. The delicate instruments on board completely fail at a height of 61.5 kilometers. What is the ...
Friday, March 1, 2013 at 4:17pm

Physics
A projected space station consists of a circular tube that is set rotating about its center (like a tubular bicycle tire) as shown in figure below. The circle formed by the tube has a diameter of about D = 1.28km. What must be the rotation speed (in revolutions per day) if an ...
Friday, March 1, 2013 at 12:12am

biology help plz?????????????????
Complete the following paragraph relating to the enzyme, β–galactosidase. This enzyme hydrolyses the disaccharide lactose to constituent monosaccharides, galactose and glucose. Drag and drop the appropriate words into the correct space. For white spaces in the ...
Thursday, February 28, 2013 at 9:11am

math
A standard deck of cards has 4 queens, one from each of the four suits (Spade, Heart, Diamond and Club). Therefore the event Q of drawing 5 queens does not exist in the sample space Ω. Therefore probability P(Q) of drawing 5 queens is zero.
Wednesday, February 27, 2013 at 6:20am

Electromagnetic spectrum
Some astronomical objects emit no visible light but are known through (blank?) and radio images; satellite observations (blank?) Earth's atmosphere help scientists study space at wavelengths that do not reach Earth's surface?
Tuesday, February 26, 2013 at 6:49pm

Physics
A 64.7 kg astronaut is on a space walk away from the shuttle when her tether line breaks. She is able to throw her 14.1 kg oxygen tank away from the shuttle with a speed of 7.45m/s to propel herself back to the shuttle. Assuming that she starts from rest (rela- tive to the ...
Tuesday, February 26, 2013 at 9:32am

Linear Algebra
Prove that If a vector space is of dimension n and a set of vectors spans V, then that set of vectors must be linearly independent.
Tuesday, February 26, 2013 at 9:01am

physics
For a safe re-entry into the Earth's atmosphere the pilots of a space capsule must reduce their speed from 2.6 104 m/s to 1.0 104 m/s. The rocket engine produces a backward force on the capsule of 1.7 105 N. The mass of the capsule is 3800 kg. For how long must they fire ...
Monday, February 25, 2013 at 9:08pm

Physics
A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its ...
Monday, February 25, 2013 at 5:03pm

chemistry
What about this do you not understand. By the way, leave space like this. 1s2 2s2 2p6 3s2 otherwise it makes no sense.
Monday, February 25, 2013 at 2:05pm

math
three separate lines can be perpendicular, if you are considering three dimensional space, like on your table. One pencil laying on the table, a second pencil on the table perpendicular to the first, and a third pencil pointing straight up (not laying on the table, as you are ...
Sunday, February 24, 2013 at 8:03pm

Science
antigens; identify I think Rib cage moves up and out; diaphragm flattens; chest cavity space increases; air pressure in the lungs drops. But I am not sure!!!!!!!!
Friday, February 22, 2013 at 10:00pm

Science
Proteins found on the outside of cells and viruses are called ____________ , these are used by the body to _______________ pathogens. antigens; help antibodies; make antigens; identify antibodies; reproduce Identify the response below that summarizes the correct sequence of ...
Friday, February 22, 2013 at 7:43pm

science
The moon is the earth's nearest neighbor in space the radius of the moon is approximately one quarter of the earth's radius and it's mass is one eightieth of the earth's mass.(a)calculate the weight of an object with a mass of 50.0kg on the surface of the moon...
Thursday, February 21, 2013 at 4:21pm

physics
I would say no force since it is in free space. I am not 100% sure.
Wednesday, February 20, 2013 at 8:14pm

physics
the force required to maintain an object at a constant velocity in free space is eaqual to?
Wednesday, February 20, 2013 at 8:11pm

Business
in what way is each of the following a marketing activity? a. the provision of sufficient parking space for custoemers at a suburban shopping mall b. the purchase by a clothing store of seven dozen sweaters in assorted sizes and colors. c. the inclusion of longer and more ...
Wednesday, February 20, 2013 at 1:49am

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
Tuesday, February 19, 2013 at 9:54pm

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
Tuesday, February 19, 2013 at 9:42pm

math
. A bag contains 3 marbles: a red one, a white one, and a green one. Suppose that two marbles are selected without replacement. (a) How many outcomes are in the sample space? List them (b) What is the probability that a red marble, and then a green marble (in that order) are ...
Tuesday, February 19, 2013 at 12:15pm

Math-Please Help
The arch is made up of equilateral triangular sections with double walls of steel 3 feet apart. Space between the walls is filled with reinforced concrete. Sizes of the sections vary, but a section at the bottom of the Arch has 54-foot sides and is 12 feet tall. About how much...
Monday, February 18, 2013 at 6:35am

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)?
Friday, February 15, 2013 at 3:35pm

biology
inner membrane space
Thursday, February 14, 2013 at 8:14pm

Physics 212
Three equal point charges, each with charge 1.50\mu C , are placed at the vertices of an equilateral triangle whose sides are of length 0.300m . What is the electric potential energy U of the system? (Take as zero the potential energy of the three charges when they are ...
Thursday, February 14, 2013 at 7:49pm

Math
The school handy man measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is NOT more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
Thursday, February 14, 2013 at 6:07pm

science
space doesn't change your weight. weight is just a measure of the force attracting you to a planet or moon or other body. If you are in space, you are farther from the earth, so it exerts less force on you. Hence, you weigh less. Actually, your weight is only felt if there...
Thursday, February 14, 2013 at 5:51pm

Math
The school handyman measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is not more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
Thursday, February 14, 2013 at 5:48pm

science
how can space change your weight in space
Thursday, February 14, 2013 at 5:37pm

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 13, 2013 at 9:21pm

Science 8R - help....!!!!
http://www.space.com/15584-solar-eclipse​s.html http://www.space.com/15689-lunar-eclipse​s.html
Wednesday, February 13, 2013 at 8:11pm

Physics
A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes...
Wednesday, February 13, 2013 at 7:59pm

Physics
Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 25 m/s. (a) What is the velocity of the ball 4 seconds after it is thrown? m/s (b) How much time...
Wednesday, February 13, 2013 at 6:55pm

Stats / Prob
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.)
Wednesday, February 13, 2013 at 11:15am

physics
In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^-15Pa. What is the density of matter in this region? What is the particle density?
Wednesday, February 13, 2013 at 8:27am

science
there's a lot unsaid here. Is he on a ramp? up or down? Is there friction? Are there stairs? Is he on a space station? Is there someone pushing back? try to pin down the scenario just a bit, ok?
Tuesday, February 12, 2013 at 11:18pm

math
PHIL'S WIFE ROWENA, IS DECORATING A PORTION OF THE KITCHEN WALL BEHIND THE STOVE IN A MOSAIC MADE UP OF EQUAL NUMBERS OF BLACK,WHITE, AND RED TILES. THE SPACE MEASURES 6 FEET BY 2 FEET. THE MOSAIC TILES ARE 6 INCH SQUARES. HOW MANY RED TILES ARE REQUIRED?
Tuesday, February 12, 2013 at 8:25pm

Physics
A spacecraft of mass 2000kg, moves at a constant speed of 7800m.s- in space. the main engine switched on for 10s during which time the exhaust gases travels at 10 000m.s-. As a result of this, the craft travels at 8000m.s- after 10s. Calculate the mass of the exhaust gas.
Tuesday, February 12, 2013 at 3:09pm

PHYSICS
Two parallel plate capacitors are identical, except that one of them is empty and the other contains a material with a dielectric constant of 4.2 in the space between the plates. The empty capacitor is connected between the terminals of an ac generator that has a fixed ...
Tuesday, February 12, 2013 at 10:58am

physics
This is one of the fundamental postulates of the special theory of relativity. It has been proven experimentally to be true. The separation of two events in space time can be written dx^2 + dy^2 + dz^2 - c^2 dt^2 That quantity is invariant when transforming from one intertial ...
Tuesday, February 12, 2013 at 12:58am

physics
Imagine a spring floating in space. This spring has a very small length when it is unstretched. The spring constant for this spring is 4.2 N/m. Now place 2.6 μC charges on each end of the spring, and allow it to stretch until it reaches a new equilibrium. What is the new ...
Monday, February 11, 2013 at 2:48pm

standard deviation
If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a numerical answer in the space provided. Round your answer to the nearest tenth and do not type spaces in your answer.
Monday, February 11, 2013 at 9:45am

socology
http://www.google.com/webhp?source=searc​h_app#hl=en&sugexp=les%3B&gs_rn=2&gs_ri=​hp&cp=36&gs_id=2&xhr=t&q=ventilation+and​+space+of++structures&es_nrs=true&pf=p&t​bo=d&output=search&sclient=psy-ab&oq=ven​tilation+and+space+of++structures&gs_l=&&#...
Sunday, February 10, 2013 at 11:37am

socology
what is the meaning of ventilation and space of structures
Sunday, February 10, 2013 at 11:31am

space science
Going to an area near the sun presents many unique challenges: Extreme radiation, especially X and Gama, but also heating and cooling of the craft as it rotates in transit, and gets baked and frozen on the surface. The nearness of the sun, (a very strong gravity well), one ...
Sunday, February 10, 2013 at 8:51am

Math
A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, and a twenty-dollar bill. Two bills are chosen in succession without replacement. Use a tree diagram to list the sample space for this experiment and then answer the following questions in fractions 1. ...
Friday, February 8, 2013 at 2:15pm

Physics, Please Help
time=distance/speedlight now the speed of light in water is slowed.. speedinwater=speedlightfreespace/(4/3) look up the speed of light in free space, and memorize it.
Thursday, February 7, 2013 at 8:12pm

space science (incomplete)
Other than what?
Thursday, February 7, 2013 at 6:17pm

space science
What other challenges do you think there would be for engineers designing a spacecraft to travel to mercury?
Thursday, February 7, 2013 at 6:09pm

7 Science
If earth was larger what would happen to it's atmosphere? It would expand It would evaporate It would be sucked into space It would become more dense
Wednesday, February 6, 2013 at 2:12pm

Math
A photograph is 25 cm and 20 cm high. It must be reduced to fit a space that is 8 cm high. Find the width of the reduced photograph.
Monday, February 4, 2013 at 6:58pm

math
perform the following unit conversion. 296 0z= ___________ lb 18.5, 55.5, 37, 74 My Answer is 18.5 Perform the following conversion. 32kg= ______ lb 16,320,70.4,14.4 My Answer is 70.4 Some people feel that the ideal temperature for an office space is 72.0 F. What is the ...
Monday, February 4, 2013 at 2:02pm

college mathematics
Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
Monday, February 4, 2013 at 10:30am

History
Who are the parties involved in this joint study? : It would be NASA and the International Space Station, right...?
Sunday, February 3, 2013 at 2:01pm

History
NASA, space shuttles, and the International Space Station are (a)all related to Cold War spy technology (b) joint scientific study and space exploration efforts (c) United States efforts to build anti missile defenses (d) belief in extraterrestrial life
Sunday, February 3, 2013 at 1:31pm

statistics
1. The scores on a standardized test for high school students are normally distributed with a population mean of 500 and a population standard deviation of 100. Use the empirical rule (0LI refers to this as the standard deviation rule.). Make sure you provide graphs for each ...
Sunday, February 3, 2013 at 12:26pm

math
Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
Saturday, February 2, 2013 at 5:20pm

chemistry help !!!!!!!!!!!!!!!!
complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme ,B-galactosidase is added to a...
Saturday, February 2, 2013 at 5:11pm

chemistry help !!!!!!!!!!!!!!!!
complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme ,B-galactosidase is added to a...
Saturday, February 2, 2013 at 5:10pm

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