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2012
February

Questions Asked on February 22, 2012

When aqueous solutions of sodium sulfate and lead (II) nitrate are mixed lead sulfate precipitates out of soultion. Calculate
1. 4 answers
2. asked by Bella
3. 10,086 views
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 4.3 m/s at an
1. 3 answers
2. asked by Priscilla
3. 6,704 views
I need to cite Beowulf from The Norton Anthology of English Literature, but I'm not sure how, as the author is unknown. Here's
1. 1 answer
2. asked by Beowulf
3. 6,450 views
An astronaut is inside a rocket that is blasting off vertically from the launch pad. You want this rocket to reach the speed of
1. 3 answers
2. asked by Jen
3. 5,761 views
At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of
1. 5 answers
2. asked by renee
3. 5,594 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating
1. 1 answer
2. asked by Natasha
3. 5,113 views
If 150.0 grams of iron at 95.0 degrees Celcius, is placed in an insulated container containing 500.0 grams of water at 25.0
1. 3 answers
2. asked by Chloe
3. 4,092 views
Joe has a weight of 850 N (about 193 lb) when he is standing on the surface of the Earth. What would his weight (the
1. 3 answers
2. asked by Mina
3. 3,658 views
A rectangular garden of area 75 sq ft is to be surrounded on 3 sides by a brick wall costing $12 per foot and on one side by a
1. 5 answers
2. asked by math
3. 3,299 views
A train moving at a constant speed on a surface inclined upward at 10.0° with the horizontal travels a distance of 400 meters
1. 2 answers
2. asked by Lauren01
3. 3,299 views
If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.A. 1.9 seconds B. 2.5 seconds C.
1. 2 answers
2. asked by Lauren01
3. 3,295 views
A metal rod is 40.125 cm long at 20 °C and 40.148 cm long at 35 °C. calculate the coefficient of linear expansion of the rod
1. 2 answers
2. asked by selena
3. 3,178 views
a =vf-vi/t is the equation for calculating the acceleration of an object. Write out the relationship shown in the equation,
1. 6 answers
2. asked by Milli
3. 3,083 views
A detergent solution has a pH of 11.63 at 25°C. What is the hydroxide-ion [OH-] concentration?
1. 4 answers
2. asked by S
3. 2,992 views
In a water park, people walk a distance of 20 meters up an inclined ramp before getting on a water slide. If the spot from where
1. 2 answers
2. asked by Lauren01
3. 2,988 views
Three identical charges of 2.0 uC are placed at the vertices of an equilateral triangle, 0.15m on a side. Find the net force
1. 2 answers
2. asked by Brandon
3. 2,905 views
A cylinder has a radius of 4x + 2 and a height of 5x + 4. Which polynomial in standard form best describes the total volume of
1. 2 answers
2. asked by jared
3. 2,819 views
Magnesium nitrate reacts with lithium sulfate in a double replacement reaction. You have 3.45 g of lithium sulfate and 275 mL of
1. 3 answers
2. asked by Bella
3. 2,753 views
The altitude of the hypotenuse of a right triangle divides the hypotenuse into segments of lengths 14 and 8. What is the length
1. 1 answer
2. asked by Myles
3. 2,717 views
Assume that there are 7 different issues of Newsweek, 8 different issues of Time, and 4 different issues of Sports Illustrated,
1. 2 answers
2. asked by victoria
3. 2,661 views
Two water jets are emerging from a vessel at a height of 50 centimeters and 100 centimeters. If their horizontal velocities at
1. 3 answers
2. asked by Lauren01
3. 2,636 views
A ball is ejected to the right with an unknown horizontal velocity from the top of a pillar that is 50 meters in height. At the
1. 2 answers
2. asked by Lauren01
3. 2,616 views
Oceans receive freshwater from precipitation and rivers. Yet ocean level do not change very much from these actions. Why are
1. 8 answers
2. asked by Maria
3. 2,481 views
The hypotenuse of a right triangle is 29.0 centimeters. The length of one of its legs is 20.0 centimeters. What is the length of
1. 1 answer
2. asked by Lauren
3. 2,412 views
In ^DEF, the bisector of <F divides the opposite sides into segments that are 4 and 9in long. The side of the triangle adjacent
1. 2 answers
2. asked by Myles
3. 2,357 views
Carpet plus installs carpet for $100 plus $8 per square yard of carpet. Carpet World charges $75 for installation and $10 per
1. 4 answers
2. asked by Caitlyne
3. 2,262 views
At some other temperature, a solid sample of Ca(OH)2 is shaken with 0.0100 M CaCl2.Once equilibrated, some solid Ca(OH)2 remains
1. 1 answer
2. asked by Anonymous
3. 2,236 views
Explain why an opened bottle of carbonated water keeps its fizz longer if kept in a refrigerator than if kept at room
1. 3 answers
2. asked by krystal
3. 2,211 views
A ball thrown horizontally from an apartment balcony hits the ground in 5 seconds. If the horizontal velocity of the ball is
1. 1 answer
2. asked by Lauren01
3. 2,174 views
A manufacturer of cell phones has decided that an assembly line will be considered to be operating satisfactorily if less than
1. 1 answer
2. asked by Alyssa
3. 2,123 views
A bicyclist moving at a constant speed takes 10.0 seconds to travel 500 meters down a path inclined 30.0° downward from the
1. 1 answer
2. asked by Lauren01
3. 2,116 views
A wheel rolling at a constant speed has a radius of 15 inches and takes 30 seconds to roll 100 feet along the ground. What is
1. 5 answers
2. asked by Liz
3. 2,072 views
What happens to the solubility of oxygen gas (O2) in water in each situation?a. The pressure of O2 over the solution is
1. 4 answers
2. asked by krystal
3. 2,069 views
One side of a triangle is half the longest side. The third side is 9 meters less than the longest side. The perimeter is 61
1. 1 answer
2. asked by Jessica
3. 2,021 views
What is the geometric mean of 7 and 12?
1. 1 answer
2. asked by Myles
3. 2,008 views
The perimeter of a regular pentagon is 35in. What is the lenght of one side of the pentagon? Show your work.
1. 2 answers
2. asked by Leah
3. 1,945 views
A pan full of hot salt water, NaCl(aq), is cooled and NaCl(s) precipitates. Explain why this happens.Chloride ions are more
1. 4 answers
2. asked by krystal
3. 1,854 views
what is the general relationship between the degree of a polynomial function and the number of "bends" or relative maximum and
1. 1 answer
2. asked by Lauren
3. 1,779 views
Assuming additive volumes, what will be the molarity of the solution that results when 35.5 mL of 2.00 M HNO3 is added to 214.5
1. 1 answer
2. asked by krystal
3. 1,771 views
A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle:
1. 1 answer
2. asked by Daniel
3. 1,769 views
If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.A. 1.9 seconds B. 2.5 seconds C.
1. 1 answer
2. asked by Lauren01
3. 1,713 views
14. All of the following are unusual elements of Walt Whitman's free verse excepta. foreign terms b. invented words c. satirical
1. 1 answer
2. asked by mysterychicken
3. 1,711 views
Calculate the mass of solute of hydrogen peroxide in a 35% solution if 450 ml of solution is being used
1. 1 answer
2. asked by Emmee
3. 1,632 views
The perimeter of parallelogram CDEF is 54 centimeters. Find the length of segment FC if segment DE is 5 centimeters longer than
1. 3 answers
2. asked by steve
3. 1,623 views
State the slope and y intercept for the graph of each equation. y=x+2
1. 4 answers
2. asked by Cassie
3. 1,609 views
Consider an economy with the following aggregate demand(AD) and aggregate supply(AS) schedules. These schedules reflect the fact
1. 1 answer
2. asked by Andrew
3. 1,605 views
one angle of triangle measures 110 degrees the other two angles are in a ratio of 5:9 what are the measures of those tow agnels
1. 2 answers
2. asked by Anonymous
3. 1,599 views
A bottle of 80 proof alcohol is 40% ethanol and 60% water. What is the solvent in this solution?water
1. 1 answer
2. asked by krystal
3. 1,596 views
I had to read an excerpt from Ralph Waldo Emerson's "Self-Reliance". My assignment is to answer uestions about it. The uestion I
1. 1 answer
2. asked by Whitney
3. 1,586 views
One shuttle service charges $10 for pickup and $0.10 per mile. The other shuttle service has no pickup fee but charges $0.35 per
1. 3 answers
2. asked by Cathy
3. 1,518 views
Liquid helium is stored at its boiling point temperature of 4.2K in a shperical container(r=0.30m).The container is a perfect
1. 2 answers
2. asked by noah
3. 1,513 views
The angle of elevation to the top of a very tall Building is found to be 9° from the ground at a distance of 1 mi from the base
1. 1 answer
2. asked by Princy
3. 1,511 views
Assume triangle JKL is in the first quadrant, with the measure of angle K = 90°. Suppose triangle JKL is a 30°-60°-90°
1. 1 answer
2. asked by steve
3. 1,507 views
jasmine bought 26 pieces of fruit.she bought 6 oranges.she bought twice as many apples as oranges,and twice as many oranges as
1. 3 answers
2. asked by john
3. 1,464 views
Integrate ∫ xsinxcosx dx
1. 2 answers
2. asked by Calculus
3. 1,463 views
Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.42 kg mass to the
1. 0 answers
2. asked by McKenzie
3. 1,418 views
In an automatic clothes dryer, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.31 m), as the drawing
1. 0 answers
2. asked by Natasha
3. 1,413 views
in 1000 tosses of a coin, 560 heads & 440 tails appear. is it reasonable to assume that coin is fair.
1. 1 answer
2. asked by ABC
3. 1,411 views
A water sample taken from the ocean is 36 ppt salt content. What is the mass of salt present in a liter of this ocean water?36g
1. 1 answer
2. asked by krystal
3. 1,410 views
Calculate the mass of solute in a 10% salt solution if the mass of the solvent is 350 grams.
1. 1 answer
2. asked by Emmee
3. 1,409 views
A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The
1. 1 answer
2. asked by Lauren01
3. 1,384 views
A point charge with a charge of q1=2.60uC is held stationary at the origin. A second point charge with charge q2=-4.70uC moves
1. 1 answer
2. asked by Celine
3. 1,305 views
Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and
1. 1 answer
2. asked by Piggy
3. 1,300 views
The somatic cells of a dog contain 78 chromosomes. Which of these is false?a) the diploid number is 78 b)the haploid number is
1. 0 answers
2. asked by Rebecca
3. 1,281 views
A bowling ball that weighs 70N is dropped from a tower 15m above the ground. Disregarding air friction, what is the kinetic
1. 2 answers
2. asked by Brean
3. 1,279 views
Big Sky Mining Company must install $1.5 million of new machinery in its Nevada mine. It can obtain a bak loan for 100% of the
1. 0 answers
2. asked by Peaz
3. 1,277 views
The angle of elevation to the top of a very tall Building is found to be 9° from the ground at a distance of 1 mi from the base
1. 1 answer
2. asked by Princy
3. 1,275 views
A child swings on a playground swing. How many times does the child swing through the swing's equilibrium position during the
1. 1 answer
2. asked by Kasey
3. 1,272 views
A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and
1. 1 answer
2. asked by renee
3. 1,270 views
N2(g) + O2(g) --> N2O5(g)(a) Consider the unbalanced equation above. What is the maximum mass of N2O5 that can be produced when
1. 1 answer
2. asked by Jade
3. 1,247 views
which of the following is not a technique for emphasizing material in a résumé?A-presenting it in vertical lists B-including
1. 1 answer
2. asked by Anonymous
3. 1,247 views
A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second,
1. 1 answer
2. asked by Lauren01
3. 1,236 views
a teacher decides to fail 25% of the class.Examination marks are roughly normally distributed w/a mean of 72 & standard
1. 2 answers
2. asked by mike
3. 1,228 views
THE RATIO OF THE PERIMETERS OF TWO SIMILAR TRIANGLES IS 1:3. htE AREA OF THE LARGER TRIANGLE IS 27FT^2. WHAT IS THE AREA OF THE
1. 1 answer
2. asked by ZACH
3. 1,210 views
Two ships make the same voyage of 3000 nautical miles. The faster ship travels 10 knots faster than the slower one (a knot is 1
1. 1 answer
2. asked by Krystal
3. 1,182 views
a ladder is 20 feet long and its top is slidding at a constant rate of 2 feet per second. How fast is the bottom of the ladder
1. 2 answers
2. asked by Stacy
3. 1,173 views
A solid cylindrical rod made from a center cylinder of lead and an outer concentric jacket of copper.Except for its ends,the rod
1. 1 answer
2. asked by noah
3. 1,171 views
You ride your bike along a straight line from your house to a store 1030 m away. On your way back, you stop at a friend's house
1. 0 answers
2. asked by jelena pleeease help
3. 1,162 views
Which should NOT be included as a heading in a chronological résumé?“Experience” if you only have one item to list under
1. 0 answers
2. asked by Anonymous
3. 1,162 views
You notice that your accounts receivable days have doubled in the first six months of this year. Do you give the A/R Director a
1. 0 answers
2. asked by christine
3. 1,154 views
Why does the Red River flow north, and the Mississippi River flow south??
1. 3 answers
2. asked by Lee
3. 1,148 views
Identify and analyze the different crimes for which students are most at risk for in K-12, include some of the differences in
1. 0 answers
2. asked by sharday
3. 1,110 views
A box contains 5 bags of potato chips, 4 bags of pretzels and 1 bag of corn chips. Andre reaches in the box and randomly picks
1. 1 answer
2. asked by Piggy
3. 1,096 views
If 19.7 g of CaCl2 are present in 200 mL of aqueous solution, what is the concentration in terms of the following?a. molarity
1. 1 answer
2. asked by krystal
3. 1,068 views
The 2000 Paralympics (Parallel Olympics) were held in Sydney, Australia. Ticket sales for all events totaled over 1.11 × 106.
1. 1 answer
2. asked by sanyu
3. 1,063 views
How will Medical Language be helpful in the future?
1. 1 answer
2. asked by Ashanda
3. 1,058 views
Liquid helium is stored at its boiling point temperature of 4.2K in a shperical container(r=0.30m).The container is a perfect
1. 0 answers
2. asked by noah
3. 1,033 views
following is NOT something a group should do when it plans a collaborative writing project?A-Divide the work ahead of time
1. 4 answers
2. asked by Anonymous
3. 1,031 views
A solid disk with a mass ok 100 kg and radius of 0.2m turns clockwise through an angular displacement 10 rad when starting from
1. 0 answers
2. asked by Brittany
3. 1,020 views
For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement?
1. 4 answers
2. asked by Lauren01
3. 1,015 views
The marketing department is asked to formulate a strategy for disseminating product information on new drug Tigason. As the
1. 1 answer
2. asked by Maggie
3. 1,014 views
What is the rule for this sequence?72 , 63 , 54 , 45 , 36 Each number in the sequence is 10 less than the previous number. Each
1. 1 answer
2. asked by Kylie
3. 997 views
A stone with mass m = 2.3 kg is thrown vertically upward into the air with an initial kinetic energy of 190 J. The drag force
1. 2 answers
2. asked by Katie
3. 997 views
An object is thrown upwards and after 2 seconds is 78 m above where it was initially thrown. Assume no air resistance, and
1. 0 answers
2. asked by Cassandra
3. 995 views
Assume triangle JKL is in the first quadrant, with the measure of angle K = 90°. Suppose triangle JKL is a 45°-45°-90°
1. 3 answers
2. asked by willy
3. 983 views
Complete the analogies by selecting the pair of words who's relationship most resembles the relationship of the pair in capital
1. 0 answers
2. asked by SoccerStar
3. 981 views
A 0.40-kg block slides along a small track with elevated ends and a flat central part. The flat part has a length L = 1.84 m.
1. 1 answer
2. asked by Katie
3. 979 views
I am study the art culture of Mexicoand famout mexican muralist Diego Rivera. I have 2 queestions not sure how to answer 1) The
1. 1 answer
2. asked by marko
3. 977 views
When a 0.50 kg-object is attached to a vertically supported spring, it stretches 0.10 m from the equilibrium position. Find k
1. 1 answer
2. asked by Noel
3. 958 views
Question number 5 is talking about a public four-year college. So we know this:2000-$3,500 2001-$3,700 2002- ? 2003- ? 2004-?
1. 0 answers
2. asked by Wanda
3. 956 views

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