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Questions Asked on February 26, 2011

Which of the following compounds would be expected to form intermolecular hydrogen bonds in the liquid state? (Select all that
1. 1 answer
2. asked by Rebekah
3. 8,459 views
Part 1A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0
1. 2 answers
2. asked by ally
3. 4,400 views
A student weighing 700 N climbs at constantspeed to the top of an 8 m vertical rope in 10 s. The average power expended by the
1. 2 answers
2. asked by ally
3. 3,599 views
The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second
1. 2 answers
2. asked by josh
3. 3,554 views
Which of the following aqueous solutions are good buffer systems ?. 0.26 M hydrochloric acid + 0.24 M potassium chloride . 0.14
1. 1 answer
2. asked by Chris
3. 3,480 views
A manufacturer estimates that the profit P from producing x units of a commodity is P=-x^2+40x-100 dollars per week. What is the
1. 7 answers
2. asked by Hannah
3. 2,614 views
While in Europe, if you drive 113 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per
1. 2 answers
2. asked by Hannah
3. 2,248 views
Use analytic methods to find the global extreme values of the function on the interval and state where they occur.y=x(2-x)^(1/2)
1. 1 answer
2. asked by Jocelyn
3. 2,229 views
The measure of the supplement of an angle is one fourth the measure of the angle. What is the measure of each angle?
1. 1 answer
2. asked by Thomas
3. 2,000 views
The initial kinetic energy imparted to a0.72 kg bullet is 1777 J. The acceleration of gravity is 9.81m/s2.Neglecting air
1. 1 answer
2. asked by ally
3. 1,905 views
"A 280ml flask contains pure helium at a pressure of 754 torr . A second flask with a volume of 475ml contains pure argon at a
1. 1 answer
2. asked by T
3. 1,682 views
The cost of an asset less accumulated depreciation equals what
1. 1 answer
2. asked by frances
3. 1,460 views
Calculate the gravitational force between the Sun and Neptune. The mass of the Sun is 1.99×1030 kg. The mass of Neptune is
1. 1 answer
2. asked by Jane
3. 1,443 views
At the school store, 5 pens sell for $1.25. Which proportion will help find the cost of 12 pens?
1. 5 answers
2. asked by allen
3. 1,431 views
A cyclist coasts up a 10.3° slope, traveling 17.0 m along the road to the top of the hill. If the cyclist's initial speed is
1. 2 answers
2. asked by Ryan
3. 1,390 views
I need help with this question:The strength of a beam with a rectangular cross section varies directly as x and as the square of
1. 1 answer
2. asked by John
3. 1,324 views
Part 1In the 1950’s, an experimental train that had a mass of 32800 kg was powered across a level track by a jet engine that
1. 1 answer
2. asked by ally
3. 1,307 views
which of the following graphs could represent a function with the following 3 properties?1) f(x)>0, for x<0 2) f'(x) is less
1. 1 answer
2. asked by Hannah
3. 1,265 views
Classify each of the eight living things listed below into one of the two groups according to an important physical
1. 1 answer
2. asked by Ivy
3. 1,236 views
Why was the Industrial Revolution a major agent of change for the United States and the world?
1. 1 answer
2. asked by Betty
3. 1,233 views
1) 1+cos(3t)/ sin(3t) + sin(3t)/( 1+ cos(3t))= 2csc(3t)2) sec^2 2u-1/ sec^2 2u= sin^2 2u 3) cosB/1- sinB= secB+ tanB
1. 5 answers
2. asked by suzi
3. 1,213 views
According to the doctrine of judicial restraint, the judiciary shoulda. defer to the decisions of elected officials. b. deny
1. 2 answers
2. asked by Anthony
3. 1,189 views
a solid sample of impure Ba(OH02 is added to .4000L of .5000M of HBr. the remaining solution was acidic, it was then titrated to
1. 3 answers
2. asked by mel <3
3. 1,149 views
Question part Points Submissions 1 20/1 0/1 0/10 0/10 Total 0/2 A 3.5-kg block slides with a speed of 1.6 m/s on a frictionless,
1. 1 answer
2. asked by Anonymous
3. 1,132 views
Can anyone tell what is a hickory slat?
1. 2 answers
2. asked by Anonymous
3. 1,132 views
Calculate the H3O^+ and OH^- ion concentrations in a solution that has a pH of 3.72.
1. 1 answer
2. asked by Maria
3. 1,132 views
an insoluble precipitate was formed when a solution of 1.000 L of 0.750 M sodium carbonate (Na2CO3) was mixed with .5000 L of
1. 1 answer
2. asked by mel <3
3. 1,119 views
in a distribution of scores with a mean of 1500 and a standard deviation of 250, what is the 95th percentile?
1. 1 answer
2. asked by Ruben
3. 1,112 views
A 84 kg diver steps off a 10 m tower and drops from rest straight down into the water. If he comes to rest 4.7 m beneath the
1. 1 answer
2. asked by floyd
3. 1,094 views
please, somebody help meDivide. x^2+7x-37/x+9. Please help me. I need all the help I can get. Thank you so much.
1. 3 answers
2. asked by esther
3. 1,075 views
As an economist, you have been asked to write a letter to a meeting of international professionals to explain the differences
1. 1 answer
2. asked by michele
3. 1,067 views
how can a school fundraiser for a hospital help prepare me for life after high schoolplease help and thank you
1. 2 answers
2. asked by needhelp
3. 1,039 views
Determine the pH of a solution that contains 5.3*10^-2 M in HClO4 and 3.0*10^-2 M in HCl?
1. 1 answer
2. asked by Mickey
3. 1,035 views
i am in the 5th grade and need to know the function of heart and how to draw it
1. 2 answers
2. asked by mimi
3. 1,033 views
what is one major existing urban development in the world? regrading urbaization.
1. 1 answer
2. asked by mya
3. 1,025 views
105 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of
1. 2 answers
2. asked by shannon
3. 1,024 views
A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.
1. 1 answer
2. asked by Nolan
3. 1,011 views
daily language practice-correct the sentences and rewrite them correctly on the lines. circle subject and underline predicate.
1. 1 answer
2. asked by jontre
3. 1,008 views
Can someone factorise 25x^2-25xy+6y^2 show your work please
1. 1 answer
2. asked by Anonymous
3. 994 views
Which of the following could represent a function having the given properties?1)increasing slope for x<4 2) f'(x)>0 for all x(x
1. 1 answer
2. asked by Hannah
3. 990 views
During Jefferson's presidency, cities wereA. mainly ports for international trade. B. mostly found along the Mississippi. C.
1. 3 answers
2. asked by Anonymous
3. 965 views
“ y and z are integers greater than 15y is the square of a number 75yz is the cube of a number. The smallest value for y + z
1. 2 answers
2. asked by cherryl
3. 948 views
Jennifer takes a job with a starting salary of $39,000 for the first year with an annual increase of 5% beginning in the second
1. 1 answer
2. asked by amber
3. 925 views
What is a good site for a simple explanation on chromosomes, meiosis, mitosis, etc as it relates to biological psychology? I
1. 1 answer
2. asked by Maria
3. 902 views
What was the significance of the fire which occurred on March 25, 1911 at the Triangle Shirtwaist Company in New York City? Why
1. 1 answer
2. asked by Anna
3. 900 views
a mass 2.9kg object moving at a speed of 5.9m\s sticks a mass 0.88kg object initially at rest. immeditaly after the collision
1. 1 answer
2. asked by Anonymous
3. 869 views
A particle vibrates in Simple Harmonic Motion with amplitude. What will be its displacement in one time-periodif you attach a
1. 2 answers
2. asked by calous --- HELP PLEASEE!!!
3. 867 views
HEY guys! I need to majorly cut down on this piece of writing as i've only got 15 mins to write my piece of journal entry so I
1. 0 answers
2. asked by Shivi
3. 857 views
Part 2You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon
1. 0 answers
2. asked by ally
3. 851 views
Rosie (mass 58 kg) pushes a box with a horizontal force of 170 N (38.216 lb) at a speed16 m/min. What is Rosie’s power output?
1. 1 answer
2. asked by ally
3. 829 views
if you have 15 coins in a bag and their total amount is $2.70 how many quarters and dimes are in the bag? Use substitution to
1. 1 answer
2. asked by mary
3. 791 views
Simplify: (2^1/2) * (8^1/2)/4
1. 1 answer
2. asked by Ola
3. 769 views
I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the
1. 4 answers
2. asked by Anon
3. 757 views
A satellite is in orbit about Earth. Its orbital radius is 7.51×107 m. The mass of the satellite is 5415 kg and the mass of
1. 3 answers
2. asked by mac
3. 751 views
help solve �ã18+�ã32=
1. 4 answers
2. asked by scott
3. 748 views
What intermolecular force(s) must be overcome to do the following.(a) sublime ice hydrogen bonding dipole-dipole interactions
1. 1 answer
2. asked by Rebekah
3. 741 views
A 91 kg man lying on a surface of negligible friction shoves a 75 g stone away from himself, giving it a speed of 4.0 m/s. What
1. 0 answers
2. asked by William
3. 734 views
Part 1A block of mass 4 kg, which has an initial speed of 8 m/s at time t = 0, slides on a horizontal surface.Find the magnitude
1. 1 answer
2. asked by ally
3. 730 views
x is a number between 3 and 50.How many vales of x is radical x / 13 a rational number?
1. 2 answers
2. asked by Lauren
3. 728 views
With regard to public opinion, the Supreme Courta. ignores it completely in order to make decisions that are based on enduring
1. 1 answer
2. asked by Anthony
3. 727 views
The pH of a 0.10 M solution of ammonia is 11.1. Find the hydroxide concentration.
1. 2 answers
2. asked by Jazmin
3. 726 views
how wold you prepare 2.00L of 1.00M HCl solution using 6.00 M HCl?i already found the volume of 6.00M HCl needed to be .333L. i
1. 1 answer
2. asked by lindy
3. 710 views
A student applies an upward force of 58 N to a 5.1-kg physics textbook. Find the book’s acceleration (positive for up,
1. 2 answers
2. asked by martin
3. 707 views
Cloverleaf exits are approximately circular. A 1256 kg automobile is traveling 58 mph while taking a cloverleaf exit that has a
1. 0 answers
2. asked by mac
3. 699 views
An electric power plant that would make use of the temperature gradient in the ocean has been proposed. The system is to operate
1. 0 answers
2. asked by Z32
3. 694 views
Solve the problem.31) For a party, Mary has to bake 5 cakes, 3 pies, and 4 trays of cookies. One cake requires 2.5 cups of
1. 1 answer
2. asked by Anonymous
3. 694 views
A healthy human body maintains a temperature of about 37.00C. Explain how physical, chemical and nuclear processes all
1. 0 answers
2. asked by Farah
3. 679 views
Year 2003 2004 2005 2006Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the
1. 0 answers
2. asked by amber
3. 670 views
Shell scriptUsing "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if
1. 0 answers
2. asked by Tina
3. 668 views
what mass of carbon dioxide is produced by the combustion of 50.0 g of propane
1. 1 answer
2. asked by Anonymous
3. 665 views
A horizontal force of magnitude F = 110 N is used to push a box of mass m = 6 kg from rest a distance d = 16 m up a frictionless
1. 1 answer
2. asked by Lyla
3. 658 views
for what are value of k are the roots of 3x^2-6x+k=0 equal?
1. 2 answers
2. asked by jackie
3. 654 views
An 8.00 kg block is placed on a rough horizontal surface and connected to a spring of spring constant 100 N/m. The spring is
1. 0 answers
2. asked by Trish
3. 650 views
Dane is three years older than twice his brother's age,(b). Which algebraic expression below represents Dane's age?A. b+3 B.
1. 4 answers
2. asked by allen
3. 642 views
"Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist.
1. 1 answer
2. asked by Tina
3. 638 views
Do you think that governors should have significant powers? I know there are about 14 states, Texas being one that their
1. 2 answers
2. asked by Joe
3. 624 views
In the ballroom of a historic palace near Paris, a chandelier hangs from the ceiling by a cable. The mass of the chandelier is
1. 2 answers
2. asked by Nolan
3. 620 views
On one 100-point test, Lisa managed to get 74 points. On a separate 100-point test, Paul managed to get 74 points. But when
1. 1 answer
2. asked by Crystal
3. 619 views
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30"I have to
1. 1 answer
2. asked by Anon
3. 614 views
A 50-kg penguin stands on ice. A helium balloon is attached to the penguin by means of a harness and pulls upward with a force
1. 1 answer
2. asked by Nolan
3. 613 views
What would be the pH of 0.568 g of HClO4 per 250 mL of solution?
1. 1 answer
2. asked by Vaneza ASAP
3. 611 views
On the way to school, Bobby noticed the school bus travels 8 miles north, then turns west and goes 6 miles to get to school. If
1. 5 answers
2. asked by allen
3. 610 views
Ferguson Company was started in 2008 when it acquired $60,000 from the issue of common stock. The following data summarize the
1. 0 answers
2. asked by Rosa
3. 610 views
at room temperature, all samples of liquid water must have the same...
1. 2 answers
2. asked by Cordal
3. 608 views
A block with a mass of 3.07 kg is placed at rest on a surface inclined at an angle of 44.6° above the horizontal. The
1. 1 answer
2. asked by Sara
3. 607 views
Is there a good website other than Wikipedia that has a good and brief definition of the words, "social justice"? I have to
1. 1 answer
2. asked by Alex L.
3. 600 views
An artillery shell is fired with a minimal velocity of 400 m/s at 54 deg above the horizontal. To clear an avalanche, it
1. 1 answer
2. asked by Christian
3. 596 views
Event A represents the act of drawing a rank of eight from a standard deck of 52 cards, if B represents the event of drawing any
1. 1 answer
2. asked by Lorrie
3. 592 views
a solid sample of impure Ba(OH)2 is added to 400.0 mL of 0.5000 M of aqueous HBr, a strong acid. the remaining solution was
1. 1 answer
2. asked by mel <3
3. 578 views
12ab + 8ab + 5abis it 25ab
1. 2 answers
2. asked by pavleen
3. 575 views
Dane is three years older than twice his brother's age,(b). Which algebraic expression below represents Dane's age?A. b+3 B.
1. 2 answers
2. asked by allen
3. 573 views
If a solution is made by mixing 50.0 moles of KOH to 3.4 kilograms of water, what is the solutions molality?
1. 2 answers
2. asked by Samuel
3. 570 views
A box is shaped like a cube with edges 11 centimeters long. What is the best approximation of the volume of the box?
1. 2 answers
2. asked by ozzy
3. 561 views
You have been hired as the marketing manager. Research and identify major approaches of how innovations like these are adopted
1. 3 answers
2. asked by Cecilia
3. 557 views
tina can paint a room in 8 hours, but when she and her friend emily work together, they can complete the job in 3 hours. how
1. 2 answers
2. asked by jackie
3. 557 views
Daniel's bonus at work this year is $1000.00 added to 20% of his yearly salary. If X represents his yearly salary, which of the
1. 1 answer
2. asked by allen
3. 555 views
The contention that the Constitution contains moral language that justifies the vigorous protection of individual rights by the
1. 1 answer
2. asked by Anthony
3. 555 views
Simplfy 10^1 x 10 ^-2 x 10 ^-1
1. 2 answers
2. asked by Nicholas
3. 548 views
can i know how to paraphrase :1) fresh and dried cherries are one of the only natural food sources of melatonin, the chemical
1. 2 answers
2. asked by alya
3. 544 views
Which of the following was the first known king of Mesopotamia?A. Sargon B. Lipit-Ishtar C. Hammurabi D. Gilgamesh
1. 1 answer
2. asked by lina
3. 544 views

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