Monday

February 27, 2017
**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 answers that ...

*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,…zn−1). Assume the inner product is the standard one: ⟨(x1,…,xn),(y1,…,yn)⟩=x∗1y1+…+x∗nyn. ...

*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 will the ...

*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 astronaut move ...

*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 and ...

*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 main ...

*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 des oeufs. 6. On l'...

*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*

**Physics**

A worker applies a torque to a nut with a wrench 0.430 m long. Because of the cramped space, she must exert a force upward at an angle of 59.5° with respect to a line from the nut through the end of the wrench. If the force she exerts has magnitude 81.0 N, what magnitude ...

*Wednesday, March 4, 2015 by Reina*

**linear(hw check)**

determine if v1= [ 2 1 0] v2=[ -1 1 3] v3=[ 0 -1 6] spans the vector space of rows with three real entries which has dimension 3. so I wanted to make sure I did this correct. First I created a matrix with v1,v2,v3 as the columns (so for example column 1= 2 1 0 then I created ...

*Wednesday, March 4, 2015 by kirsten*

**Physics**

Energy Budget for a Rocket in Free Space: Recall the analysis of the rocket engine in Project I, Flight of the Rocket. Although the momentum of the rocket and its exhaust is conserved (constant), their energy is not; energy must be supplied by the combustion of fuel. WARNING: ...

*Wednesday, March 4, 2015 by Steve*

**Physics**

Energy Budget for a Rocket in Free Space: Recall the analysis of the rocket engine in Project I, Flight of the Rocket. Although the momentum of the rocket and its exhaust is conserved (constant), their energy is not; energy must be supplied by the combustion of fuel. WARNING: ...

*Tuesday, March 3, 2015 by Steve*

**science**

I need help checking my answers. the * stands for my answer some of them im not sure about my orginal answer for 2 was b but I changed it to a. 1. which of the following planets is considered a rocky, or terrestrial, planet? venus neptune saturn uranus * 2. which of the ...

*Monday, March 2, 2015 by watguy!!!*

**English**

In The Diary of Anne Frank, Act I, 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 ...

*Monday, March 2, 2015 by help?thanks*

**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 ð.)

*Monday, March 2, 2015 by Mary*

**Algebra 2 Honors**

Hi, I'd like some help with one of the questions on my math homework. It has to do with a right triangle. I'm not sure how to set it up or if I should use the pythagorean theorem. This is the question: Vista county is setting aside a large parcel of land to preserve it as open...

*Sunday, March 1, 2015 by Spectrum*

**math vectors**

Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3-space to show that Vector a×(Vector b × Vector c) is not equal to (Vector a × Vector b) × Vector c. Can you help me think of an example im having ...

*Friday, February 27, 2015 by Adiana*

**linear algebra**

Let V be the set of all real-valued continuous functions defined on R1. If f and g are in V, we define f ⊕ g by (f ⊕ g)(t) = f(t) + g(t). If f is in V and c is a scalar, we define c f by (c f)(t) = cf(t). Then V is a vector space, which is denoted by C(−&#...

*Thursday, February 26, 2015 by kirsten*

**math**

let V be the set of all real-valued continuous functions defined on R1. If f and g are in V, we define f ¨’ g by (f ¨’ g)(t) = f(t) + g(t). If f is in V and c is a scalar, we define c f by (c f)(t) = cf(t). Then V is a vector space, which is denoted by C(−...

*Thursday, February 26, 2015 by sara*

**math**

Which of the following subsets of the vector space Mnn are subspaces? (a) The set of all n × n symmetric matrices (b) The set of all n × n diagonal matrices (c) The set of all n × n nonsingular matrices

*Wednesday, February 25, 2015 by kirsten*

**English**

Can someone please explain this poem to me and also the literary devices used? Thanks! "Like This" If anyone asks you how the perfect satisfaction of all our sexual wanting will look, lift your face and say, Like this. When someone mentions the gracefulness of the nightsky, ...

*Wednesday, February 25, 2015 by Sarah*

**science**

CAN ONE IN THEORY OR ACTUAL DEPRIVE A PARTICULAR AREA OF SPACE; 1sq mile of space of oxygen while the surrounding area of space has normal levels of oxygen?.... This question is not limited by the use of other chemicals or machinations to achieve GOAL....

*Tuesday, February 24, 2015 by mike*

**art**

where is the negative space in the rubin case?

*Monday, February 23, 2015 by sara*

**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, February 20, 2015 by O*

**science(sound #3)**

Space has no air, what is another name for no air?

*Wednesday, February 18, 2015 by Alyssa*

**Science**

In which of the following situations is a sound wave most likely to travel through air? A. An alarm clock rings in a vaccum. B. A giant star explodes. C. A grasshopper eats a leaf. D. An astronaut uses tools in space. Is the answer A? Thank you.

*Wednesday, February 18, 2015 by Callie*

**Algebra 2**

A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the planet. Astronomers were able to measure the speed of one of the projectiles. the distance (in feet) that the projectile traveled each second, ...

*Wednesday, February 18, 2015 by Nicole*

**Astronomy**

The Hubble Space Telescope orbits at an altitude of 600 km above the Earth's surface. Assuming it is in a stable circular orbit, what is its velocity? For reference, the Earth's radius is 6400 km and Earth's mass is 6 x 10^24 kg. The formula to solve for circular velocity is v...

*Sunday, February 15, 2015 by Allison*

**fundamental concepts**

Free play, eating a snack, painting, hearing a story, and so forth are related to which of the following learning concepts? A. Space B. Classification C. Size D. Time a.

*Sunday, February 15, 2015 by Luis*

**statistics**

Listed below are the duration's (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or why not? 71, 100, 237, 199, 164, 269, 193, 379, 252...

*Friday, February 13, 2015 by slomo*

**Physics**

A spaceship in deep space has a velocity of 4000 km/s and an acceleration in the forward direction of 6 m/s2. What is the acceleration of a ball relative to the spaceship after it is released in this spaceship?

*Thursday, February 12, 2015 by Kay*

**Physics**

What is the maximum total force exerted on a 71 kg astronaut by her seat during the launch of the Space Shuttle?

*Thursday, February 12, 2015 by Kayla*

**statistics**

Listed below are the duration's (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or why not? 71 100 237 199 164 269 193 379 252 233 388...

*Wednesday, February 11, 2015 by slomo*

**probabilitie**

Mary and Tom park their cars in an empty parking lot with n>=2 consecutive parking spaces (i.e, n spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What is the probability ...

*Tuesday, February 10, 2015 by Anonymous*

**Physics**

A proton is initially at rest in empty space, when suddenly an electric field of magnitude 8.0 x 10 4 n/c and direction due east is turned on. what is the magnitude and direction of the initial acceleration of the proton? Repeat the problem, but with an electron.

*Monday, February 9, 2015 by BK*

**ENGLISH**

The space shuttle was both a marvel and huge.

*Thursday, February 5, 2015 by X*

**fundamental concept**

"Close and far away" is an example of which of the following space concepts? A. Direction B. Position C. Distance D. Construction my answer is c.

*Wednesday, February 4, 2015 by Daniela*

**fundamental concepts**

"Above and below" is an example of which of the following space concepts? A. Distance B. Construction C. Direction D. Position answer c.

*Wednesday, February 4, 2015 by Daniela*

**Fundamental concepts**

Which of the following activities emphasizes the concept of space? A. Figuring out how many pieces of candy will fit into a jar B. Matching pictures of animals to their written names C. Figuring out how fish swim D. Using the sense of touch to describe balls my answer is a.

*Wednesday, February 4, 2015 by Daniela*

**Physics**

7. An early objection to the idea that the earth is spinning on its axis was that the earth would turn so fast at the equator that people would be thrown into space. Show the error in this logic by calculating the centripetal force needed to hold a 100. kg person in place at ...

*Monday, February 2, 2015 by Brian*

**physics**

A space satellite has a total mass of 500kg. A portion of mass 20kg is ejected a velocity of 10ms-1 . Calculate the recoil velocity of the remaining portion (ignoring the initial velocity of the satellite).

*Monday, February 2, 2015 by joe*

**english**

The space shuttle was both a marvel and huge.

*Monday, February 2, 2015 by x*

**Physics**

The space shuttle is in a 3e+5 m high orbit over the earth. The radius of the earth is 6.37e+6 m, the mass of the earth is 5.98e+24 kg. What is the distance from the center of the earth to the space shuttle? I don't know whether I would double the radius and the add the height...

*Saturday, January 31, 2015 by Carly*

**chemistry**

nearest star distance of 4.3 light years proxima centauri is the nearest star to our solar system. what is the distance to proxima centauri kilometers? the speed of light in space is 2.998 x10^8 m/s.

*Friday, January 30, 2015 by help plz*

**Physics**

An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a force of 0 N, and increasing at a uniform rate until the magnitude of the force is 56 N after the force has acted for 10 s. The body has a mass of 15 kg...

*Friday, January 30, 2015 by Kev*

**reading**

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 because it...

*Friday, January 30, 2015 by Anonymous*

**physics**

a) Determine the capacitance, in pF, of a paper-filled parallel-plate capacitor (dielectric constant=3.70) having a plate area of 5.40cm2 and plate separation of 590 µm. Use 8.85 x 10-12 F/m for εo, the permittivity of free space. For this I got 2998.53x10-2 b) Determine...

*Friday, January 30, 2015 by Amanda*

**physics**

Determine the capacitance, in pF, of a paper-filled parallel-plate capacitor (dielectric constant=3.70) having a plate area of 5.40cm2 and plate separation of 590 µm. Use 8.85 x 10-12 F/m for εo, the permittivity of free space

*Friday, January 30, 2015 by Amanda*

**physics**

A capacitor is rolled from two strips of aluminum separated by two strips of paraffin-coated paper. Each strip is 5.40cm wide. The foil is 7.00μm thick, and the paper is 50.0μm thick. What length, in cm, should the strips be if a capacitance of 24.0nF is desired? Use...

*Friday, January 30, 2015 by Anne*

**Science**

Which explains the greenhouse effect? A. Greenhouse gases like water vapor and carbon dioxide trap heat in the atmosphere, thereby radiating heat energy back into space. B. Greenhouse gases like water vapor and carbon dioxide release heat in the atmosphere, thereby radiating ...

*Thursday, January 29, 2015 by Anonymous*

**Science**

Please could someone check these for me. 1In a series of rock layers, a geologist finds fossils of a lizard-like dinosaur and a fern-like tree in layers that are 1.0 m and 1.5 m deep. However, in a layer that is 2.0 m deep, he finds fossils of bony fish and shellfish. Which ...

*Thursday, January 29, 2015 by Anonymous*

**math**

Two station astronauts will each perform three 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please put your answer in ...

*Thursday, January 29, 2015 by math*

**Physics**

What is the Earth's gravitational force on you when you are standing on the Earth and when you are riding in the Space Shuttle 380 km above the Earth's surface? Answer as a fraction of the surface gravity of Earth. (The Earth's radius is 6400 km.)

*Tuesday, January 27, 2015 by Kayla*

**Physics**

You (m=75.0 kg) are floating outside your space station, and- oh no- a siren sounds, and the doors start to close! At the instant the siren sounds, you are exactly 10.0 m from the station doors and floating away from the space station at a speed of 1.00 m/s. The doors will ...

*Tuesday, January 27, 2015 by Chloe*

**Science**

Check My Answers, please? Which of the following planets is considered a rocky, or terrestrial, planet? Venus **** Neptune Saturn Uranus Which of the following statements about the beginning of the solar system is true? The planets that formed closest to the sun became gas ...

*Monday, January 26, 2015 by Kenxie*

**Physics**

A 64.3 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 10.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.9 m/s, propelling the astronaut back to the shuttle. Assuming that the astronaut ...

*Monday, January 26, 2015 by Kev*

**Physics**

A 83.8 kg astronaut is working on the en- gines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several sec- onds later is 39.6 m behind the ship, at rest relative to the spaceship. The only way to re- turn ...

*Sunday, January 25, 2015 by Chris*

**chemistry**

Diborane (B2H6) is a highly reactive boron hydride, which was once considered as a possible rocket fuel for the U.S. space program. Calculate ∆H for the synthesis of diborane from its elements, according to the equation 2 B (s) + 3 H2 (g) → B2H6 (g) using the ...

*Sunday, January 25, 2015 by Lisa*

**physics**

An 94.4 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 29.6 m behind the ship, at rest relative to the spaceship. The only way to return to ...

*Sunday, January 25, 2015 by Bri*

**Math .Static**

Consider two events A and B in the same sample space such that P(A)=0.4 and P(B)=0.3. Then A and B are mutually exclusive. True or False

*Saturday, January 24, 2015 by denial*

**concept development**

Free play, eating a snack, painting, hearing a story, and so forth are related to which of the following learning concepts? A. Space B. Classification C. Size D. Time my answer is d.

*Saturday, January 24, 2015 by Daniella*

**Physics**

A(n) 57.3 kg astronaut becomes separated from the shuttle, while on a space walk. She finds herself 54.3 m away from the shuttle and moving with zero speed relative to the shuttle. She has a(n) 0.697 kg camera in her hand and decides to get back to the shuttle by throwing the ...

*Thursday, January 22, 2015 by Tina*

**maths**

Five flash cards having odd numbers from 11 are shuffled well and one card is drawn from it write the sample space

*Thursday, January 22, 2015 by lalithya*

**math**

Jamiebeatimates that,when he arrives at work tomorrow morning,there is a probability that 0.4 that he will find a convenient parking space. What is Jamie to say? A. It is very unlikely that he will find a convenient parking space. B.it is somewhat unlikely that he will find a ...

*Thursday, January 22, 2015 by shannon*