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2011
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Questions Asked on January 21, 2011

As a train accelerates from a station, it reaches a speed of 4.7m/s in 5.0s. If a train acceleration remains constant what is
1. 3 answers
2. asked by Lesh
3. 8,204 views
what is the prefix of represent
1. 12 answers
2. asked by raeisha
3. 6,463 views
A 210 g air-track glider is attached to a spring. The glider is pushed in 12.0 cm against the spring, then released. A student
1. 2 answers
2. asked by Erin
3. 4,328 views
1) Walt Whitman's writing style can be best described as a. bold and confident b. folsky and charming c. elegant and refined d.
1. 9 answers
2. asked by bonnierta
3. 4,165 views
Calculate the molarity and mole fraction of acetone in a 1.29 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of
1. 2 answers
2. asked by sarah
3. 3,656 views
Which molecule is most likely to contain only single covalent bond?a)co2 b)HCN c)CH4 d)H2ccH2
1. 1 answer
2. asked by Anonymous
3. 3,602 views
-5 Is A Member Of Which Subset Of Real Numbers.a) natural numbers b) whole numbers c) intergers d) rational numbers e)
1. 4 answers
2. asked by Angel
3. 3,178 views
when a child flying a kite has let out 50 m of string the string makes an angle of 55 degrees with the ground. how high is the
1. 2 answers
2. asked by Shelby
3. 2,960 views
An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate
1. 1 answer
2. asked by Sarah
3. 2,939 views
HELP!You are handed a 8.0 cm stack of new one-dollar bills. Assume the thickness of a dollar bill is 1.4 times thicker than your
1. 1 answer
2. asked by Joe
3. 2,780 views
while hiking near the mouth of the river, malcolm finds a fine grained that break into flat pieces. This an example of what type
1. 2 answers
2. asked by Anonymous
3. 2,593 views
using rounding or compatible numbers,which numbers would you choose to estimate the exact product of 25 times 25.
1. 4 answers
2. asked by abraham
3. 2,577 views
A tennis player places a 54 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally
1. 1 answer
2. asked by Anonymous
3. 2,463 views
A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the
1. 1 answer
2. asked by den
3. 2,159 views
Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.
1. 1 answer
2. asked by Kate
3. 2,132 views
a plane flies 810 miles form Franklin to Centerville with a bearing of 75 degrees (clockwise from north). then it flies 648
1. 2 answers
2. asked by mimi
3. 2,089 views
You have 24 feet of fence to make a rectangular garden.Each side will measurw a whole number of feet.How many different sized
1. 1 answer
2. asked by gaby
3. 2,039 views
1) in song of myself, whitman's theme is best demonstrated by a.the "last scud of day holds back for me" b.the "spotted hawk
1. 4 answers
2. asked by Anonymous
3. 1,731 views
The mean score on a normally distributed exam is 42 with a standard deviation of 12.1. Which socre would be expected to occur
1. 2 answers
2. asked by Tami
3. 1,730 views
WHY DO AUTHORS USE COMPLEX SENTENCES THEIR WRITING. How DOES THEYhelp emphasize and explain the author’s point?
1. 5 answers
2. asked by jessica
3. 1,663 views
Is the equation 344+0.6x(t-20)? I'm not getting this at all?How long does it take for sound to arrive at the back of a big
1. 2 answers
2. asked by Joe
3. 1,638 views
if cos 2 theta = -(1/3) and theta is in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta
1. 1 answer
2. asked by Jeff
3. 1,605 views
Explain why arcsin 3 is undefined.
1. 1 answer
2. asked by seth
3. 1,580 views
How can you use 4s facts to find 7 x 8? give the product in your explanation..thanks.
1. 4 answers
2. asked by kel
3. 1,559 views
a gas has a volume of 1.75 L at -23 degrees Celsius and 150 kPa at what temperature will the gas occupy 1.30 L at 210 kPa
1. 3 answers
2. asked by Samantha
3. 1,552 views
A bag contains 3 green marbles and 6 blue marbles. What is the probability of drawing a blue marble, then another blue marble,
1. 2 answers
2. asked by Sandra
3. 1,539 views
which pair of atom will combine chemically to give an ionic compound?a)H and U b)O and S C)F and CA d)NA and CL
1. 1 answer
2. asked by Anonymous
3. 1,504 views
calculate the free electrons of a copper wire having a 0.064 inches diameter and 1000 ft. long?
1. 1 answer
2. asked by vic
3. 1,461 views
To what volume should you dilute 50.0 mL of a 4.50 M KI solution so that 28.5 mL of the diluted solution contains 2.75 g of KI?
1. 2 answers
2. asked by Heidi
3. 1,458 views
walking down a long moving escalator, phil covered the 75 m distance in 25 s. walking back up against the motion of the
1. 2 answers
2. asked by jodie
3. 1,457 views
Write electron configurations for the following ions, and determine which have noble-gas configurationsTl+ As3- I -
1. 1 answer
2. asked by person
3. 1,455 views
what mass of KIO3 is needed to convert the copper in 0.2 g of CuSO4 5H20 to Cu(IO3)2
1. 1 answer
2. asked by midget
3. 1,424 views
a 5.1 kg bucket water is raised from a well by a rope. the acceleration of gravity is 9.81 m/s^2. if the upward acceleration of
1. 1 answer
2. asked by Mayra
3. 1,315 views
what is the correct pronoun:El hombre ____ (el libro) da al joven.
1. 1 answer
2. asked by James
3. 1,312 views
in the sentence-she told us about the different kinds of insects. is told a past or present verb?
1. 1 answer
2. asked by carmen
3. 1,303 views
In "The Cross of Snow," the images of a halo, fire, and sunlight contrast with the-(which one??) A- image of a snowy, sun-capped
1. 0 answers
2. asked by Catalina
3. 1,267 views
A catalytic converter combines 2.55 g CO with excess O2.What mass of CO2 forms?
1. 1 answer
2. asked by Kate
3. 1,248 views
A small mouse is dropped by a hawk who is ascending straight up at constant rate of 1.0 m/s. Neglecting air friction, after 2.0
1. 1 answer
2. asked by Anonymous
3. 1,244 views
a girl lets out 50 yards of kite string while flying a kite. The distance from a point on the ground directly under the kite to
1. 2 answers
2. asked by ryhane
3. 1,236 views
I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216
1. 1 answer
2. asked by Tameka
3. 1,232 views
A steel ball is dropped from a diving platform (with an initial velocity of zero). Use the approximate value of g = 10 m/s2.(a)
1. 1 answer
2. asked by Ashley
3. 1,216 views
what mass of steam intially at 130 degree celcius is needed to warm 200 grams of water in a 100 gram container from 20 to 50
1. 1 answer
2. asked by mike
3. 1,201 views
How are trenches related to plate boundaries? How are trenches explained by the theory of plate tectonics?
1. 1 answer
2. asked by Clammyson
3. 1,194 views
Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.
1. 1 answer
2. asked by Kate
3. 1,175 views
what are the different types of shapes and forms? ASAP EXAM TOMORROW
1. 5 answers
2. asked by makayla
3. 1,155 views
A quantity of ice at 0 degrees celcius is added to 64.3 grams of water in a glass at 55 degrees celcius. After the ice melted,
1. 0 answers
2. asked by LeAnna
3. 1,145 views
Help!!!A rectangle piece of cardboard twice as long as wide is to be made into an open box by cutting 2 in. squares from each
1. 3 answers
2. asked by Hector
3. 1,105 views
Vanadium crystalizes in a body centered cubic lattice (the V atoms occupy only the lattice points) how many V atoms are present
1. 2 answers
2. asked by Angela
3. 1,105 views
A bucket is swung on a rope in a vertical circle as shown in the diagram below. The bucket has a mass of 1.5 kg, the radius of
1. 3 answers
2. asked by Anonymous
3. 1,071 views
i am an even number that has more ones than tens. My thousands digit is the quotient of 9 divided by 3 and my tens digit is the
1. 2 answers
2. asked by collin
3. 1,056 views
I realize this is a general chemistry stoichiometry question, however I can not fully grasp it.I am supposed to calculate the
1. 3 answers
2. asked by Me
3. 1,045 views
By the cofunction property, cos 33° = sin _______
1. 2 answers
2. asked by carly
3. 1,040 views
A point moving on a straight horizontalline with an initial velocity of 60 fps to the right is given an acceleration of 12 fps2
1. 1 answer
2. asked by John
3. 1,019 views
explain the difference between qualititative and quanititave medical record analysis?
1. 1 answer
2. asked by pam baker
3. 1,008 views
how much energy in joules is required to melt 10.00 moles of ice
1. 2 answers
2. asked by Anonymous
3. 1,007 views
1)c 2)c 3)c 4)c .. k this looks ridiculous but i think the answers are all C !!! please check!!!1) At the end of the poem(song
1. 0 answers
2. asked by Dan
3. 999 views
Find sec x if sin x = -0.6 and cos x = 0.8.
1. 1 answer
2. asked by anna
3. 968 views
Rank gases from highest average molecular speed to lowest Ne, HBr, CO
1. 1 answer
2. asked by psk
3. 965 views
What factors helped Jackson win the election of 1824?
1. 2 answers
2. asked by Kiersten
3. 965 views
4. Vanna has just financed the purchase of a home for $200 000. She agreed to repay the loan by making equal monthly blended
1. 0 answers
2. asked by stephy
3. 937 views
anyone explain how this cos 2A cos A – sin 2A sin Acan become to this cos (2A + A) = cos 3A
1. 1 answer
2. asked by mie_y98
3. 929 views
If someone's height is six feet and is enlarged to 16.8 inches, what is the scale factor?
1. 3 answers
2. asked by Ericka
3. 927 views
Various values for the derivative, f'(x), of a differentiable function f are shown below.x=1, f'(x) = 8 x=2, f'(x) = 4 x=3,
1. 1 answer
2. asked by Erica
3. 917 views
what quantity of heat is required to vaporize 141 g of benzene at its boiling point 80.1 degrees celcius? heat of vaporization
1. 2 answers
2. asked by Angela
3. 917 views
How far must the point charges = 7.20 and = -25.0 be separated for the electric potential energy of the system to be -130 ?
1. 2 answers
2. asked by Cassie
3. 907 views
A ball of mass 0.1 kg is attached to a rubber band, which we can model as a spring of stiffness 8 N/m. With one end of the
1. 2 answers
2. asked by Anonymous
3. 891 views
A box with a mass of 40.0 kg is pulled along a level floor at a constant speed by a rope that makes an angle of 20.0o with the
1. 1 answer
2. asked by Anonymous
3. 863 views
An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolvedthe
1. 1 answer
2. asked by
3. 862 views
A point charge with charge Q1 is held stationary at the origin. A second point charge with charge moves from the point (x1, 0)
1. 1 answer
2. asked by Cassie
3. 856 views
how much heat is needed to convert 826g of ice at -10.0 degrees celsius to steam at 126 degrees celsius
1. 2 answers
2. asked by Angela
3. 830 views
One of the significant changes in atmosphere in Jefferson's administration was:the number of common people involved in
1. 2 answers
2. asked by brandon
3. 828 views
Transform the formula. The area of a triangle A can be found with the formula A=1/2bh where b is the length of the base of the
1. 1 answer
2. asked by Jacob
3. 809 views
On a rectangular piece of cardboard with perimeter 11 inches, three parallel and equally spaced creases are made. The cardboard
1. 1 answer
2. asked by Valerie Pacetti
3. 796 views
On a rectangular piece of cardboard with perimeter 11 inches, three parallel and equally spaced creases are made. The cardboard
1. 1 answer
2. asked by Valerie Pacetti
3. 787 views
In Figure 4-44, a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving
1. 2 answers
2. asked by Blake
3. 785 views
I have tried to solve this problem several time sto get the answer and I am lost.Train A and B are traveling in the same
1. 1 answer
2. asked by Tracy
3. 782 views
Most homeostatic mechanisms are controlled with a negative feedback loop. Explain why this mechanism may be more efficient at
1. 1 answer
2. asked by Anonymous
3. 773 views
each box has 10 pencils . how many pencils do 3 boxes have ?
1. 1 answer
2. asked by jordan
3. 759 views
3. Individual Assignment: Practice with Pronouns, Adjectives, Adverbs, and Comparisons• Write several sentences describing a
1. 5 answers
2. asked by mika
3. 745 views
Will you please check my answers?How are oceanic and continental crust alike? How do they differ? They are alike because both
1. 2 answers
2. asked by Reed
3. 742 views
Find the pH of a solution prepared by taking a 50.0 mL aliquot of a solution prepared by dissolving 12.25g of NaOH and 250.0 mL
1. 2 answers
2. asked by Audrey
3. 741 views
what is the volume of 250.0 grams of acetone whose density is 0.7899 g/cm
1. 2 answers
2. asked by jarett
3. 721 views
What is the change in kinetic energy of a baseball thrown at 90 mph compared to one thrown at 45 mph?it is four times as much
1. 3 answers
2. asked by Anonymous
3. 713 views
Thank you very much for your help--I'm having trouble with this problem: what do i do?There are three point charges along the x
1. 0 answers
2. asked by APPRECIATIVE STUDENT
3. 711 views
Which of the following is NOT true?A. The uncertain digit is estimated between the last two markings. B. Except for absorbance,
1. 3 answers
2. asked by Shawn Tabrizi
3. 710 views
True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.
1. 1 answer
2. asked by Betsy
3. 707 views
Compound words are two words that have been joined together to create a new word. The new word is related to both the smaller
1. 7 answers
2. asked by Miley
3. 706 views
simplify the expression. assume all variables are positive.third root x/y^2
1. 1 answer
2. asked by Tisha
3. 704 views
the first angle of a triangle is complementry to the third angle.the second angle is 16 degrees less than five times the first
1. 2 answers
2. asked by gabriel
3. 704 views
1) The tone in the song of myself number 52 is best described asa. lighthearted b. bombastic c. detached d. intimate 2) Which
1. 1 answer
2. asked by Dan
3. 697 views
I need to know the rhythm and meter of Billy Collins "Forgetfulness"
1. 1 answer
2. asked by Ryan
3. 695 views
A swimming pool can be filled by a vent in 10 hours. When the pool is filled, it can be emptied bya drain pipe in 20 hours. The
1. 1 answer
2. asked by Emily
3. 692 views
the formula P= 2L+2W can be used to calculate the perimeter of a rectangle. A regtangular swimming pool has a length of 50
1. 3 answers
2. asked by Jay
3. 692 views
A vending machine dispenses coffee into an eight-ounce cup. The amount of coffee dispensed into the cup is normally distributed
1. 2 answers
2. asked by Erika
3. 690 views
what is the prepositional phrase of this?That coral reef may have been growing for a thousand years.
1. 1 answer
2. asked by ronin
3. 686 views
To determine the density of block of aluminum, you measured the mass at 101.1 g and a volume of 38.2 cm3 . When you looked up
1. 1 answer
2. asked by Anonymous
3. 673 views
Classify these layers of the Earth as liquid, solid, or solid but able to flow slowly: crust, lithosphere, asthenosphere, outer
1. 0 answers
2. asked by Reed
3. 668 views
how do i solve differential equation dy/dx=3/(2-x) and use graphing utility to graph 3 solutions,one which passes through the
1. 1 answer
2. asked by mrunal
3. 667 views
Suppose you've already registered in the Penn Foster Web site. What information must you provide to enter the site again and
1. 2 answers
2. asked by Anonymous
3. 667 views
I was hoping someone could look over my paper and tell me if I am answering correctly the questions below.For patient billing to
1. 1 answer
2. asked by kristina
3. 665 views

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