Tuesday

May 31, 2016
**math**

Aaron own a shipping company. He plans to move into his new office which is near to the city centre. He needs some filing cabinets to organize his files. Cabinet x which costs RM100 per unit, requires 0.6 square meters of the floor space and can hold 0.8 cubic meters of files...
*Monday, June 8, 2015 by mt*

**French**

Bonjour! Are these sentences grammatically correct? 1. J’étais trés réservée. C’était une bonne chose, parce que je n’ai jamais eu des problémes pour parler. Mais il était difficile de se faire des amis (I was ...
*Sunday, June 7, 2015 by Lucina*

**Algebra**

the space shuttle does one full orbit every 90 minutes and the earth is 25,000 miles around. What is the apparent speed of the space shuttle?
*Wednesday, June 3, 2015 by Megan *

**English**

Snow blowers (also called snow throwers) can make the sometimes difficult, often-unpleasant task of clearing snow from sidewalks and driveways much easier. Before making a purchase, however, it’s best to learn a few snow blower basics. Most snow blowers are gasoline ...
*Wednesday, May 27, 2015 by John *

**English**

"If you've got it, (1)_____ it" That's the (2)_____ of Georgia's philosophy. Georgia is my dorm roommate. a dance and theater major, she is a true extrovert- always showing off, always "on stage". It seems she is in constant motion, going from ...
*Wednesday, May 27, 2015 by Mika*

**Physics**

In deep space, a 636 kg space probe, travels with an initial velocity of 19 m/s. Retro-rockets fire, producing a 212 N force in the opposite direction of the probe's initial velocity. How many seconds until the probe has a velocity of 22 m/s in the opposite direction of ...
*Wednesday, May 27, 2015 by Emma*

**Physics**

In deep space, a 636 kg space probe, travels with an initial velocity of 19 m/s. Retro-rockets fire, producing a 212 N force in the opposite direction of the probe's initial velocity. How many seconds until the probe has a velocity of 22 m/s in the opposite direction of ...
*Tuesday, May 26, 2015 by Emma*

**Physics**

In deep space, a small rock orbits an asteroid. The circular, orbit radius is 1037m and the velocity of the rock is 8.02m/s. Find the mass of the asteroid.
*Tuesday, May 26, 2015 by Jenny*

**Physics**

In deep space, a small rock orbits an asteroid. The circular, orbit radius (between their center of masses) is 1037 m and the velocity of the rock is 8.02 m/s. Find the mass (kg) of the asteroid. G=6.67x10^-11 m^3/kgs^2. I got 1.0x10^15 but that is incorrect.
*Sunday, May 24, 2015 by Sansa Stark*

**Art **

An interior designer creates a plan for a baby nursery. Why does he decide to use light blue as a main part of the color scheme? Light blue encourages infant brain development. Light blue is the most popular color for nurseries. Light blue will encourage the baby to look up at...
*Sunday, May 24, 2015 by Lala2015*

**LA**

Which statement from "Why Do We Need Zoos?" best captures the author's point of view? "...zoos were open to the general public, too, so everyone could find out about animals." "Some people feel that there is lots of wild space and that animals ...
*Friday, May 22, 2015 by David101*

**Physics**

Three charged particles are arranged on corners of a square as shown in the figure below, with charge -Q on both the particle at the upper left corner and the particle on the lower right corner, and charge +2Q on the particle at the lower left corner. (i) What is the direction...
*Thursday, May 21, 2015 by Anonymous*

**L A/The Giver**

Downward, downward, faster and faster. Suddenly he was aware with certainty and joy that below, ahead, they were waiting for him: and that they were wailing too, for the baby. For the first time, he heard something that he knew was music. He heard people singing. Behind him, ...
*Wednesday, May 20, 2015 by Marylyn*

**Science**

During a space shuttle landing, a parachute deploys from the back of the shuttle as it taxis down the runway. In addition to the speed brake, the parachute helps the shuttle come to a complete stop. How does the parachute help during this process? A. It increases the weight of...
*Monday, May 18, 2015 by Connie*

**math **

Mary wants to build a fence in the yard to keep her dog from running away. She only has 60 feet of fencing. If she wants to create a rectangular space that has a length that is twice as long as the width. How long is each side of the rectangular space?
*Sunday, May 17, 2015 by sasha*

**Science: Space**

I'm having trouble finding the answers to these fill-in-the-blank questions: Our understanding of the solar system has changed from an Earth-centered model of ____ and ____ to the sun centered model of _____ and _____. I was thinking for the first 2 blanks: rocks; oxygen ...
*Wednesday, May 13, 2015 by Anonymous*

**Functions**

A particular company needs to ship cubed shaped boxes of varying sizes to customers. As these boxes are fragile they are to be packed inside a larger box with a 5 cm clearance on each side to allow space for a packing material. If v(x) is the volume of the smaller box as a ...
*Wednesday, May 13, 2015 by Rez*

**English**

Story : The Ethanol Debate Natalie Stewart What feature of the selection BEST illustrates that it is a persuasive essay? A) < -- A? the chart showing the rise in corn prices B) the information on how farmers feed their herds C) the description of how ethanol use costs ...
*Monday, May 11, 2015 by Sara*

**Science **

1.If the current (in amps) remains the same, but the voltage increases, what effect does this have on the power (in watts) consumed by some device? 2.How is the dimension of time different from the dimensions defining space?
*Monday, May 11, 2015 by Leo *

**Physics**

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 ...
*Sunday, May 10, 2015 by Brian*

**Physics**

The space shuttle releases a space telescope into orbit around the earth. The telescope is traveling at a speed of 1700m/s in 25 seconds. What is the distance of the satellite? d = v x t d = 1700 x 25 = Is that the correct formula? Thank you.
*Friday, May 8, 2015 by Steph*

**Physics**

Suppose you're an astronaut and you're sitting in a 6000kg space capsule riding on a 4000 m x 8000 m sail (whose mass is included in the 6000 kg). You're orbiting in the vicinity of a distant bright hot star giving off light with an intensity 8 x 10^9 W/m^2 at a ...
*Thursday, May 7, 2015 by M*

**Science**

Are these answers correct? 1. Which layer of the sun's atmosphere are you looking at when you look at an image of the sun? Photosphere**** Chromosphere Corona Prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar ...
*Wednesday, May 6, 2015 by Emily*

**MS SUE PLZ HELP**

How does the C horizon form? Rainwater washes clay minerals from the A horizon to the C horizon Plant roots weather pieces of rock plants add organic material to the soil bedrock weathers, and breaks up into soil particles.** What makes up soil besides rock particles, minerals...
*Monday, May 4, 2015 by Levi Ackerman*

**Science**

How does the C horizon form? Rainwater washes clay minerals from the A horizon to the C horizon Plant roots weather pieces of rock plants add organic material to the soil bedrock weathers, and breaks up into soil particles.** What makes up soil besides rock particles, minerals...
*Monday, May 4, 2015 by Levi Ackerman*

**Chemistry**

An organic compound consists of only carbon, hydrogen, and oxygen. Through combustion analysis, 5.671g of water and 36.933g of carbon dioxide are formed from 17.422g of sample. C:12.0 amu O: 16.0 amu H:1.0 amu In the space provided please write the empirical formula and, if ...
*Friday, May 1, 2015 by Sara *

**Math**

Shelly and Andy are playing a game using a number cube and flips the coin. What are all possible outcomes during one turn? How many outcomes are in the sample space?
*Thursday, April 30, 2015 by Pat*

**Math**

A painting shaped like a circle had a diameter of 20 inches. A circular frame extends 2 inches around the edge of the painting. How much wall space does the framed painting need? Use 3.24 for pi.
*Thursday, April 30, 2015 by J J *

**5th grade math**

Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?
*Thursday, April 30, 2015 by Chris*

**measurment**

Its recommended that there be at least 16.8 sq ft. of ground space in a garden for every newly planted shrub. a garden is 39.2 ft. by 15 ft. Find the maximum number of shrubs the garden can accomidate
*Wednesday, April 29, 2015 by pat*

**PHYSICS**

A particle (mass = 5.0 g, charge = 40 mC) moves in a region of space where the electric field is uniform and is given by Ex = 2.5 N/C, Ey = Ez = 0. If the velocity of the particle at t = 0 is given by vy = 50 m/s, vx = vz = 0, what is the speed of the particle at t = 2.0 s?
*Wednesday, April 29, 2015 by Mary*

**math**

King Arthur II has problems with pronouncing the digit 3. People are afraid of presenting something which includes 3 in it. The solution found is that if any number includes 3 as a digit, the number is divided by 2. This process continues as far as the new numbers include new ...
*Sunday, April 26, 2015 by ani*

**calculus**

A water tank has the shape of an inverted right circular cone with base radius 3 meters and height 6 meters. Water is being pumped into the tank at the rate of 12 meters3/sec. Find the rate, in meters/sec, at which the water level is rising when the water is 2 meters deep. ...
*Saturday, April 25, 2015 by ana*

**DISCRETE MATH**

HOW CAN YOU USE DISCRETE PROBABILITY TO CALCULATE THE PROBABILITY OF TESTING 5 DEVICES SUCH THAT ALL 5 END UP BEING NONDEFECTIVE, GIVEN THERE ARE 20 DEFECTIVE DEVICES TOTAL OF THE ORIGINAL 100 DEVICES? WHAT IS THE SAMPLE SPACE?
*Friday, April 24, 2015 by MARAL*

**Physical Science**

At 27 degrees Celsius and 750 mm Hg, a sample of hydrogen occupies 5.00 L. The space it occupies at STP = 4.49 L. Should the 4.49 L be rounded to 4.5 L? If not, is there a specific rule that explains rounding for this type of problem?
*Thursday, April 23, 2015 by Doris*

**Science **

1. Which layer of the sun's atmosphere are you looking at when you look at an image of the sun? Photosphere Chromosphere*************** Corona Prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar system? Hydrogen and...
*Thursday, April 23, 2015 by Andrew *

**physics**

A charge of -4.50 10-6 C is placed at a point in space where the electric field is directed toward the right and has a magnitude of 9.00 104 N/C. What are the magnitude and direction of the electrostatic force on this charge?
*Thursday, April 23, 2015 by jeff*

**calculus**

In the space below, provide the smaller of the two positive integers that add to 40 and have the largest possible product
*Wednesday, April 22, 2015 by emma *

**micro**

We assume that when a firm hires additional workers, the marginal physical product of labor will: 1. decrease because each worker now has less capital and other resources to work with. 2. decrease because the new workers are likely to be less able than the previously hired ...
*Tuesday, April 21, 2015 by lisa*

**calculus**

A firework is launched at the rate of 10 feet per second from a point on the ground 50 feet from an observer. To 2 decimal places in radians per second, find the rate of change of the angle of elevation when the firework is 40 feet above the ground. Type your answer in the ...
*Monday, April 20, 2015 by emma *

**Math**

a rectangle shape doctor's office has an area of 120 feet. what are the dimensions of this office space?
*Monday, April 20, 2015 by Julian*

**Statistics**

Suppose a random family of four is selected (two parents and two children). Suppose further that you are told one of the two children is a girl. Given that this family has at least one daughter, what is the conditional probability that it also has a son? (HINT: write out the ...
*Sunday, April 19, 2015 by Gary*

**Science**

1. Which layer of the sun's atmosphere are you looking at when you look at an image of the sun? Photosphere Chromosphere*************** Corona Prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar system? Hydrogen and...
*Saturday, April 18, 2015 by Hailee*

**Science **

1. Which layer of the sun's atmosphere are you looking at when you look at an image of the sun? Photosphere Chromosphere*************** Corona Prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar system? Hydrogen and...
*Saturday, April 18, 2015 by Hailee*

**Science**

1. Which layer of the sun's atmosphere are you looking at when you look at an image of the sun? Photosphere Chromosphere*************** Corona Prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar system? Hydrogen and...
*Friday, April 17, 2015 by Hailee*

**physics**

Answer the following question:Be sure to show all work. Include formulae and units.Be sure to include relavant, meaningful diagram and a complete circuit diagram with circuit related problem. take enough space, don't try to squeeze everything on a small space!(problems are...
*Friday, April 17, 2015 by titu*

**paragraph **

i need help because i have to write about space exploration can you type your paragraph on here please
*Thursday, April 16, 2015 by Bryce*

**geometry**

The cargo space of the truck is 2.44 meters wide, 2.76 meters high, and 8.20 meters long. How many cubic meters of cargo space does the truck have?
*Wednesday, April 15, 2015 by Anonymous*

**math**

Jeff is replacing the tile on his floor. he pans to use square tiles that are 11 inches on a side. the floor is 8 feet long and 6 feet wide. cabinet in the middle of the floor that will not need tile. this space is 2 feet wide and 3 feet long. estimate how many title will be used
*Tuesday, April 14, 2015 by Marty*

** math**

Jerry is packing cylindrical cans with diameter 6 in. and height 10 in. tightly into a box that measures 3 ft by 2 ft by 1 ft. All rows must contain the same number of cans. The cans can touch each other. He then fills all the empty space in the box with packing foam. How many...
*Tuesday, April 14, 2015 by Ray*

**calculus**

A 15-ft ladder rests against a vertical wall. If the top of the ladder slides down the wall at a rate of 0.33 ft/sec, how fast, in ft/sec, is the bottom of the ladder sliding away from the wall, at the instant when the bottom of the ladder is 9 ft from the wall? Answer with 2 ...
*Monday, April 13, 2015 by emma *

**MATH**

I need help on number 3.the question is. According to information from NASA the space Shuttles external fuel tank has a capacity of about 500,000 gallons of fuel.Write three numbers that could represent the space Shuttles actual fuel capcity.
*Monday, April 13, 2015 by TALARIYAH*

**math**

Q. The rectangular-shaped doctor's office has an area of 120 square feet and a perimeter of 44 feet. What are the dimensions of this office space? - A. Do I add just add 120 by 44??
*Monday, April 13, 2015 by amethyst*

**Physics**

Ann, Sam and you take a trip to the orbiting International Space Station, bringing along a hula hoop that is 1.02 m in diameter (= 2R) and has a mass Mh = 2.0 kg. You are watching from a viewport while Sam and Ann go outside for a (space) walk. You see both Sam and Ann ...
*Monday, April 13, 2015 by Spencer*

**probability**

a coin is flipped fifteen times how many elements are in the equally- likely sample space? how many different events exist? what is the probability of at most a head occurring? what are the odds at least one head OCCURS
*Sunday, April 12, 2015 by brittany*

**physics- Space**

How does the amount of dark matter in the Universe compare to the amount of ordinary matter? In what way is dark matter similar to ordinary matter? In what way are they different? I got the first one which dark matter is 23% of the universe. But for the other questions, the ...
*Sunday, April 12, 2015 by Anonymous*

**math**

25. The Great Pyramids weigh 6x10^9 kilograms. The Space Shuttle weighs 2x10^6 kilograms. How many times heavier are the Pyramids than the Space Shuttle? A.The Pyramids are 3 times heavier than the space shuttle. B.The pyramids are 30 times heavier than the Space shuttle. C....
*Sunday, April 12, 2015 by Rabie*

**Fine Art**

How are the elements of art depicted in the artwork named "Winged genie fertilizing a date tree?" I know that shape, line and space is used but I do not know how they are used in this artwork. I even looked at all the other similar questions but none of them had ...
*Friday, April 10, 2015 by cherry*

**linear algebra urgent**

Use the Gram-Schmidt process to transform the basis 1 1 1 , 0 1 1 , 2 4 3 for the Euclidean space R3 into an orthonormal basis for R3.
*Thursday, April 9, 2015 by sara*

**Calculus**

A wire 7 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total area of both ...
*Tuesday, April 7, 2015 by Nope*

**Physics 1**

A rotating cylinder about 5.0 miles in diameter is designed to be used as a space colony. With what tangential velocity must it rotate so that the residents on it will experience the same acceleration as that due to gravity on Earth? Recall that ag=g=-9.8 m/s^2 and 1 mi=1609 m...
*Tuesday, April 7, 2015 by Brittany*

**Physics**

A 5000 kg space shuttle starts at rest and linearly increases its thrust from 0N to 1000N across a displacement of 2000 meters. Calculate the total amount of work done on the shuttle.
*Tuesday, April 7, 2015 by jackie*

**mastering quantum mechanics**

PART B (10 points possible) Consider the operator S on an n-dimensional complex vector space so that S(z1,z2,…,zn)=(0,z1,z2,…znW22;1). Assume the inner product is the standard one: ⟨(x1,…,xn),(y1,…,yn)0217;=x∗1y1+…+x&#...
*Monday, April 6, 2015 by JuanPro*

**masterin quantum **

Consider the left shift operator on the space of infinite sequences of complex numbers: L(z1,z2,…)=(z2,z3,…). Is L injective? Yes <text> Yes</text> - incorrect No Is L surjective? Yes <text> Yes</text> - correct No Find the eigenvalues and ...
*Monday, April 6, 2015 by JuanPro*

**cda**

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. I choose B
*Sunday, April 5, 2015 by Kaleisha*

**linear algebra check**

Use the Gram-Schmidt process to transform the basis [1 1 1] , [0 1 1] , [2 4 3] for the Euclidean space R3 into an orthonormal basis for R3. (Enter each vector in the form [x1, x2, ...]. Enter your answers as a comma-separated list.) so i went through the process and got [1/...
*Saturday, April 4, 2015 by sara*

**math**

miss guy is going to build a pen for her puppy. she has 50 feet of fencing to use. figure out some ways she can set up the pen and use all fencing. what are the dimension of the rectangular pen with the most space area for the puppy?
*Friday, April 3, 2015 by thania*

**CDA**

Licensing requirements ensure minimum A. space. B. children. C. requirements. D. standards. My answer is C
*Tuesday, March 31, 2015 by Kaleisha*

**5th grade math**

mrs. watterson wants to fence in an area for her dog. she has 72 feet of fencing and wants to use all of it to enclose a space with the greatest possible area. which dimensions will give her a space with the greatest possible area? (1 point) 16 feet by 20 feet 18 feet by 18 ...
*Monday, March 30, 2015 by kayli *

**child day care**

. In the childcare field, the main purpose of a Quality Rating and Improvement System (QRIS) is to A. improve and standardize the quality of care in all facilities in the state. B. lower the cost of childcare. C. make it easier for parents to find childcare. D. make childcare ...
*Monday, March 30, 2015 by Tinkk*

**physics**

a 60-kilogram astronaut floating in space outside the capsule throws his 0.50-kilogram hammer such that it moves with a speed of 10 m/s relative to the capsule. what happens to the astronaut?
*Monday, March 30, 2015 by Ted*

**Earth Space Science**

the horizontal distance between a crest to the next trough of an ocean wave is 5 meters. what is the wavelength of the ocean wave? A)2 meters B)5 meters C)10 meters D)20 meters I think its 10 meters but im not so sure, I would like to make sure.
*Saturday, March 28, 2015 by Sierra*

**Geometry**

The area of a rectangular space is 128 square feet. What are the possible pairs of whole number dimensions in feet?
*Wednesday, March 25, 2015 by George*

**Spanish**

What is UOLSRRSEDELO unscrambled? The word is a spanish word and is written as: _ _ _(space) _ _ _ _ _ _ _ _ _ Thanks!
*Wednesday, March 25, 2015 by Jacob*

**biology**

Economists were thinking that if the human population grew unchecked, there wouldn’t be enough living space and food for everyone. What was Malthus’ conclusions?
*Wednesday, March 25, 2015 by Ariel *

**Physical Science**

I have no idea how to do this, and I'm not sure what the formula is. Here's my question: In space, there is almost no air, so there is virtually no friction. If an astronaut throws a ball in space with an initial velocity of 3.0 meters per second to the west, what ...
*Tuesday, March 24, 2015 by Lindsey*

**Needs help in math**

1. During a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of the remaining route. She runs the rest of the route. If she runs 3600 meters, find the total distance of the triathlon route. 2. A square foot of wall space needs 1/8 quart of paint. Terrence has 7 ...
*Tuesday, March 24, 2015 by Anika*

**Physical science**

An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronaut's mass is 100kg. He takes a 1kg "safety weight" and shoves it away in exactly the direction of his motion at a speed of 6m/s. at what speed does the ...
*Monday, March 23, 2015 by Clarke*

**Science Check Please Dr.Bob222**

I am sorry would..Hopefully this would make it easier 1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin * 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow...
*Monday, March 23, 2015 by YOLO*

**Science Check Please**

1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow and retain heat. boil constrict cool down expand 3. The...
*Monday, March 23, 2015 by YOLO*

**MEDICAL CODING**

Use the CPT, ICD-9-CM, and ICD-10-CM manuals to assign the appropriate procedure, modifier, and diagnosis codes to the following case scenario. Preoperative Diagnosis: Right Pneumothorax Postoperative Diagnosis: Same Procedure Performed: Placement of anterior chest tube (...
*Sunday, March 22, 2015 by MEHUL*

**heat transfer**

the temperature in deep space is close to absolute zero,which presents thermal challenges for the astronauts who do space walks.propose a design for the clothing of the astronauts that will be most suitable for the thermal environment in space.defend the selections in your ...
*Sunday, March 22, 2015 by whj*

**critical thinking**

Which of the following is not a way to succeed in college? A. Be flexible with planning activities B. avoid procrastination C. establish realistic goals for yourself D. organize a work space my answer is b.
*Sunday, March 22, 2015 by Saddia*

**physics**

The five engines of the first stage of a launch vehicle provide a total thrust of 31.5 x 106 newtons to the space vehicle (launch vehicle and spacecraft). Assuming the acceleration is uniform, calculate the acceleration of the 2.764 x 106 kg space vehicle after lift-off. The ...
*Saturday, March 21, 2015 by baz*

**Art Appreciation**

Which of the following statements is an accurate description of Pop Art? (Answer is not D) A. Painting and sculpture that is self-sufficient and has no subject matter, content, or meaning beyond its presence as an object in space B. Art created by artists who believe that no ...
*Thursday, March 19, 2015 by Bandini12*

**French, foreign language**

Read each definition and write the appropriate word or expression in the space provided. 1. C'est un plat typiquement français. On les prépare avec du beurre et de l'ail. Ce sont un escargot . (incorrect) 4.On les utilise pour faire des omelettes. Ce sont...
*Wednesday, March 18, 2015 by Alex*

**language arts**

1. in diary of anne frank, act 1, what causes the franks and the van daans to move into the rooms on the top floor of the ware house? A. Their own homes have been desroyed by bombs. ***** B. They are hiding from the Nazis, who have been persecuting Jews. C. The warehouse has ...
*Wednesday, March 18, 2015 by jamie*

**earth**

When earth is seen from outer space,it looks mainly blue. This is because most of the earth is covered with.
*Saturday, March 14, 2015 by leslie*

**Statistics**

80. Florida State University has 14 statistics classes scheduled for its Summer 2013 term. One class has space available for 30 students, eight classes have space for 60 students, one class has space for 70 students, and four classes have space for 100 students. a. What is the...
*Friday, March 13, 2015 by Howard*

**Computer Science**

You try to run the CHKDSK utility from a command prompt but you keep getting an error message that you need to run it in Elevated Mode. How do you correct this? Reboot the computer in SAFE Mode and then run CHKDSK from a command prompt. Open command prompt from the Windows ...
*Thursday, March 12, 2015 by Ally*

**science**

What advantages of space probes
*Wednesday, March 11, 2015 by kevenhotdog74@*

**chemistry**

why water expands when it freezes? Water expands when it freezes because it starts to bend. when all the water molecules are in this hexagonal structure, the same amount of water takes up more space than when the molecules are randomly arranged. For example- In the ocean ...
*Wednesday, March 11, 2015 by Ciaria *

**math**

The numbers 7, 8, 9, and 11 are written on separate pieces of paper and put into a hat. Two pieces of paper are drawn at the same time and the product of the numbers is recorded. Find the sample space.
*Monday, March 9, 2015 by Anonymous*

**Math**

You have a rectangular yard that has perimeter of 72 meters. The current area is between 300 and 350. What are the dimensions of your current fenced in space
*Monday, March 9, 2015 by Monica *

**physics**

if a monochromatic beam of light with a wavelength of 590 nanometers is traveling through air then enters a region of space where the index of refraction is 1.5, what will the light beam do? increase, decrease, or stay the same?
*Sunday, March 8, 2015 by sue*

**astronomy**

The peak luminosity of a white dwarf supernova is around 10^10LSun and it remains above 10^8LSun for about 150 days. In comparison, the luminosity of a bright Cepheid variable star is about 10000LSun.The Hubble Space Telescope is sensitive enough to make accurate measurements ...
*Saturday, March 7, 2015 by Landy*

**Chemistry**

The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s) ---> 2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
*Friday, March 6, 2015 by O*

**physics**

A worker applies a torque to a nut with a wrench 0.485 m long. Because of the cramped space, she must exert a force upward at an angle of 57.0° with respect to a line from the nut through the end of the wrench. If the force she exerts has magnitude 81.5 N, what magnitude ...
*Friday, March 6, 2015 by alba*

**Math**

1/3divided by 4= 12 I made a model that has 4 sections and each space has 3 1third sections
*Thursday, March 5, 2015 by Beverly*

**L,A**

In The Diary of Anne Frank, Act 1, what causes the Franks and the Van Daans to move into the rooms on the top floor of the warehouse? A. Their own homes have been destroyed by bombs. B. They are hiding from the Nazis, who have been persecuting Jews. C. The warehouse has more ...
*Wednesday, March 4, 2015 by Anonymous*