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Questions Asked on February 4, 2007

A force of 25N causes an acceleration of 2m/s^2 when acting on a 7kg mass. What is the frictional force also acting?If body is
1. 1 answer
2. asked by Janine
3. 2,400 views
how do I get the percent deviationof a value? I got he answer already thanks any way:) What is the highest fluride of Uuh?
1. 0 answers
2. asked by claudia
3. 963 views
How does a tornadoe form?This site has a great explanation and diagrams. http://www.weatherwizkids.com/tornado.htm
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2. asked by melissa
3. 486 views
How do the characters of Laertes and Fortinbras highlight Hamlet's fatal flaw of inaction?Check the character analysis at this
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2. asked by Missy
3. 942 views
I can't find a substance apart of water with a pH of 7,so i have a question, i don't know if water is the only neutral substance
1. 0 answers
2. asked by Claudia
3. 915 views
If 1 cc of a substance has a mass of 1.5 g, the density is what?I think it is 1.5 but not sure. density = mass/volume d = 1.5
1. 2 answers
2. asked by hollie
3. 903 views
I have to come up with my own procedure for reducing vanillin, to vanillyl alcohol. Help please! I know I have to use NaBH4 but
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2. asked by Stefanie
3. 349 views
Hi you guys please help me with my chemistry homework, i need to find all these items and take them to my class in a ziploc bag*
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2. asked by Desperate
3. 582 views
What is the highest fluride of Uuh?Here is a web site for the periodic table. Look up element number 116. The chemistry of Uuh
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2. asked by RedQueen
3. 578 views
If you divide the molar mass of a compound by the empirical formula mass, what is the result?That division should be VERY close
1. 1 answer
2. asked by Chris
3. 958 views
What factors might influence your decision to use a memorandum format rather than a manuscript format for a short report?If your
1. 0 answers
2. asked by Marie
3. 544 views
Statement one: "The woman in the play are wimps completely dominated by te men in theirs."Question one: Discuss this statement
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2. asked by Joal
3. 829 views
can anybody give me the density of arsenic oxide at STPis this the correct formula volume = mass/ density thanks Yes, but if you
1. 0 answers
2. asked by bex
3. 1,157 views
What does these colleges have in common "concerning SEC basketball" ..Samford, Georgia, Marshall, Illinois State, Murray State,
1. 0 answers
2. asked by CINDY AGAIN
3. 477 views
Please diagram the following sentence:The nickname for the state of Virginia is "Mother of Presidents." My grandaughter just
1. 0 answers
2. asked by freddy
3. 555 views
how technology is used to enhance visual communicationThese sites have some interesting information.
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2. asked by Shanique
3. 490 views
Can you help me with these please?In general, is the boiling point of a polar liquid likely to be higher or lower than that of a
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2. asked by Lydia
3. 493 views
-4x^2(3x^2-x+1)Multiply it term by term, and I will, or someone will check you.
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2. asked by Margie
3. 348 views
Im fed up with this assignment please helpThe oxide formed when selenium burns in air dissolves in water to give a solution of
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2. asked by Kevin
3. 529 views
A golfer hits a ball off the ground with an initial velocity of 200 ft/s at an angle of 23 degrees. The green is 750 feet away.
1. 0 answers
2. asked by Kyle
3. 525 views
in his plays william shakespeare wrote a great many phares that have stood the test of time. see whether you can rearrange the
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2. asked by anna
3. 552 views
Please see if I am doing this problem right.A mixture of gasoline vapor and air is placed in an engine cylinder. The piston has
1. 3 answers
2. asked by Anonymous
3. 5,871 views
Which parts of the frog's nervous system can be observed in its abdominal cavity and hind leg?spinal nerves
1. 0 answers
2. asked by Anonymous
3. 560 views
Wow, im currently in an cultural diversity class and I have feeling the individual who originally posted this question is one of
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2. asked by Heather G.
3. 496 views
in his plays william shakespeare wrote a great many phares that have stood the test of time. see whether you can rearrange the
1. 0 answers
2. asked by lynn
3. 436 views
A sinusoidal wave travels along a string. The time for a particle to move from maximum displacement to zero is 0.170s. What are
1. 0 answers
2. asked by susane
3. 902 views
Is this true? The molar mass of nitrogen gas is 14.0 g.Nitrogen occurs in nature as N<sub>2</sub>
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2. asked by Chris
3. 403 views
a. Two sticks are rubbed together to start a fire.b. A firecracker explodes. c. A red-hot iron bar is set aside to cool. In
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2. asked by Anonymous
3. 1,204 views
I am given a list of apparatus, liquids & solids and am trying to convert aluminium selenide from solid to geseous states does
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2. asked by MARK
3. 385 views
Please check my answers. Identify the following processes as isothermal, isovolumetric, or adiabatic:a. a tire being rapidly
1. 1 answer
2. asked by Anonymous
3. 3,756 views
True or FalseThe empirical formula of a compound is always the same as the molecular compound. My Answear: True The empirical
1. 1 answer
2. asked by Bryan
3. 1,620 views
Completion1) 2)6.02 X 1023 Chemists relate units of counting, of mass, and of volume to a single quanity called the _______. The
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2. asked by Bryan
3. 576 views
C2H4Br2 + 3 I- -> C2H4 + 2Br- + I3-[C2H4Br2]M [I1]M Initial Rate (M/s) 1 0.127 0.102 6.45 x 10-5 2 0.343 0.102 1.74 x 10-4 3
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2. asked by kim
3. 553 views
Please use "Post a New Question" and then be sure to ask a question!Please note that <b>we don't do students' homework</b> for
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2. asked by Writeacher
3. 541 views
Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies
1. 0 answers
2. asked by Jake
3. 606 views
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such
1. 1 answer
2. asked by Ann
3. 1,446 views
-y^3(2x^2y-4xy^2)=-2x^2y^4+4xy^6*is this correct.? No, in the last term, the y should be to the fifth power (3+2)
1. 0 answers
2. asked by Margie
3. 538 views
Why do people routinely stuff themselves at all-you-can-eat buffets? Explain in terms of both utility and demand theories.At any
1. 1 answer
2. asked by Kayla
3. 3,651 views
sqrt3x^5y^14To simplify: sqrt(3 x^5 y^14) The square root of x^4 is x^2. The square root of y^14 is y^7. Can you determine what
1. 0 answers
2. asked by Margie
3. 365 views
-4x^2(3x^2-x+1)=-12x^4+4x^3-1x^2*Is this correct.? The last term should be -4x^2
1. 0 answers
2. asked by Margie
3. 334 views
Does my work here look right?3. One mole of an ideal gas expands adiabatically into a vacuum. Calculate q, delta-e, w, and
1. 0 answers
2. asked by Jess
3. 1,279 views
1. The heat of solution of salta may either be endothermic or exothermic. What factors determine this?2. As a solution freezes,
1. 0 answers
2. asked by anonymous
3. 623 views
A 3.0 molal solution of naphthalene in cyclohexane boils at 89.4 C. What is the boiling point of pure cyclohexane? Although
1. 1 answer
2. asked by Grace
3. 1,163 views
Will someone please show me how to do this problem. I have to write this ratios in simplest form.The ratio of 5 3/5 to 2 1/10.
1. 3 answers
2. asked by jeff
3. 1,439 views
Heyy, okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing
1. 0 answers
2. asked by Tracy
3. 547 views
How would I explain how I arrived at the following EF in words?
1. 0 answers
2. asked by MARK
3. 357 views
magine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward force
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2. asked by COFFEE
3. 652 views
A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of 450 N on the
1. 0 answers
2. asked by COFFEE
3. 1,123 views
Two horizontal forces act on a 2.4 kg chopping block that can slide over a frictionless kitchen counter, which lies in an xy
1. 1 answer
2. asked by COFFEE
3. 1,117 views
Give a copy of Appendix D to a friend or family member and ask that person to complete the table contained therein.Thank you for
1. 0 answers
2. asked by Trenet
3. 574 views
How many calories do 12-14 year olds need daily? What food should be eaten every day? What is the maximum and minimum amount of
1. 0 answers
2. asked by Madame
3. 700 views
Karmin wants to clean her house, finish her economics problem set, write her English essay, and spend time with her boyfriend.
1. 0 answers
2. asked by jenna
3. 552 views
After flying for 15 min in a wind blowing 42 km/h at an angle of 30° south of east, an airplane pilot is over a town that is 50
1. 0 answers
2. asked by winterWX
3. 670 views
A boy whirls a stone in a horizontal circle of radius 1.2 m and at height 2.0 m above ground level. The string breaks, and the
1. 0 answers
2. asked by winterWX
3. 601 views
A person walks up a stalled 20 m long escalator in 79 s. When standing on the same escalator, now moving, the person is carried
1. 0 answers
2. asked by winterWX
3. 619 views
How many gas particles occupy a volume of 22.4 L at standard temperature and pressure?One mole of gas particles.
1. 0 answers
2. asked by Bryan
3. 696 views
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a
1. 0 answers
2. asked by Ann
3. 804 views
I have a question concerning waves. What effect does increasing the tension in a vibrating string have upon wavelength? I was
1. 0 answers
2. asked by Physics
3. 575 views
Price:64 cents/100 g= $_______/kg Quantity: 4kg Total cost: $______/kg x ________ =$_________ How many g in a kilogram? what
1. 0 answers
2. asked by Marcela
3. 570 views
102 litre+0.01 m^3=?102 liters is 102 * 10^-6 m^3 still confused x2+10=
1. 0 answers
2. asked by Marcela
3. 462 views
addtional information: the diameter of the oil film on the water is 40cm^2see my post.
1. 0 answers
2. asked by ruby
3. 898 views
Driving down a mountain, Tom finds that he has descended 1800 ftin elevation by the time he is 3.25 mi horizontally away from
1. 0 answers
2. asked by Julie
3. 1,058 views
Is it possible to roughly sketch a graph(without plotting the points) from the asymptotes of a rational function? Is yes, what
1. 0 answers
2. asked by Jen
3. 768 views
What is the formula for time and displacement. Or where on the inet can I find a list of mechanics formulae?I am not allowed to
1. 0 answers
2. asked by Janine
3. 605 views
Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies
1. 0 answers
2. asked by Jake
3. 975 views
What force accelerates a 3kg mass at a rate of 4m/s^2?Assuming this is on smooth surface with no frictional force Force = mass x
1. 0 answers
2. asked by Janine
3. 520 views
Bob Pursley,With regards to a question posted by john on Tuesday, January 30, 2007 at 6:14am: How is it that you used 650
1. 0 answers
2. asked by Si
3. 521 views
What is the decrease in elevation of a 4-kg body whose kinetic energy increases from 20 J to 100 J as a result of moving
1. 1 answer
2. asked by Janine
3. 1,426 views
CompletionTo calculate the percent composition of a known compound, start with chemical formula of the compound and calculate
1. 0 answers
2. asked by Bryan
3. 618 views
A vessel of 6.84 L in volume contains 3.61 L of pure water at 25°C. A partial pressure of 3.67 atm of CO2 is quickly injected
1. 0 answers
2. asked by Jill
3. 529 views
1.3x^2+17x+102.5y^8-125 3.a^2-2ab-15b^2 *Please help me.You have to factor by completing. Let's look at #1: 3x^2 + 17x + 10 We
1. 0 answers
2. asked by Alex
3. 767 views
I have a problem that I need help with. The diameter of the oil molecule has to be calculated and presented in scientific
1. 0 answers
2. asked by ruby
3. 624 views
Which elements result if two protons and two neutrons are ejected from a radium nucleus with atomic number 88 and mass number
1. 0 answers
2. asked by Sam
3. 939 views
Why does a hydrogen atom, which has only one electron, have so many spectral lines? Any help gratefully received.There are many
1. 0 answers
2. asked by Mac
3. 731 views
Josie wrote a newspaper advertisementabout the school cafeteria's meatloaf. She wanted everyone to try it, so she explained how
1. 0 answers
2. asked by Tyra
3. 1,069 views
Mrs. Ruiz began reading "Arthur's New Puppy." At one point she stopped readingand asked the children what they would do with the
1. 0 answers
2. asked by Martie
3. 570 views
Why is the colour of the light emitted by an element in the gaseous state characteristic of the element?Various elements absorb
1. 0 answers
2. asked by Steve
3. 611 views
What is the true meaning of dimerize and trimerize - neither of these words are found in any dictionary and hence, are not
1. 0 answers
2. asked by MARK
3. 650 views
"It was a hospital for gravely ill children, and he had to watch his friends in the ward die, one after the other. During his
1. 0 answers
2. asked by Writeacher
3. 444 views

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