Questions Asked on March 7, 2007

Two firms, A and B, each currently dump 50 tons of chemicals into the local river. The government has decided to reduce the
1. 1 answer
2. asked by Anonymous
3. 5,424 views
A sound wave travels in air at a frequency of 500 Hz. If part of the wave travels from air into water, does its frequency
1. 1 answer
2. asked by anonymous
3. 2,864 views
You drop a 1.8 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the
1. 1 answer
2. asked by Technoboi11
3. 1,881 views
The activation energy for the isomerization of methyl isonitrile is 160 kJ/mol. Calculate the fraction of methyl isonitrile
1. 1 answer
2. asked by Mark
3. 1,499 views
state noble gas whose electron configuration is attained in a lewis structure for hydrogen cyanide and noble gas attained in
1. 0 answers
2. asked by Pedro
3. 1,439 views
Prove by contradiction that for any even integer a and any odd integer b, 4 does not divide (a^2 + 2b^2).Proposition: That 4k (k
1. 0 answers
2. asked by romulo
3. 1,368 views
What is the product formed from a reaction of butanal and sodium hydroxide? cyclopentanone and sodium hydroxide? acetophenone
1. 0 answers
2. asked by Rob
3. 1,365 views
Would CH4 dissolve in water? Why or why not?CH4 is non-polar. H2O is polar. CH4 is not soluble in water.
1. 0 answers
2. asked by John
3. 1,363 views
A thin rod, of length L and negligible mass, that can pivot about one end to rotate in a vertical circle. A heavy ball of mass m
1. 0 answers
2. asked by Technoboi11
3. 1,333 views
What would be the result of removing or adding one proton from an atom of gold ?The atomic number of the element would change.
1. 0 answers
2. asked by WeatherGirl
3. 1,274 views
what is a characteristics of the disease std'sBy STD I am assuming you mean sexually transmitted disease. An STD is a disease or
1. 0 answers
2. asked by maya
3. 1,210 views
Hi, I am a senior in High School having a really difficult time with two problems. I have to prove using the trigonometric
1. 1 answer
2. asked by amanda
3. 1,151 views
Hi,I’d really appreciate if you can help me out with the following question: Nick bought a table for his basement.
1. 0 answers
2. asked by Ali Irfan Kurt
3. 1,111 views
Could anyone explaint to me what role the Binomial Theory plays in statistics and probability?Using statistics, we can make
1. 0 answers
2. asked by Jennie
3. 1,106 views
Reaction 1 Oll CH2=CH-CH-OH + CH3-CH-CH2-C l l l CH3 CH3 OH compound 1 compound 2 Products? identify any functional groups in
1. 0 answers
2. asked by Pedro
3. 1,086 views
Problem #1Number problem. If one-half of one integer is subtracted from three-fifths of the next consecutive integer, the
1. 0 answers
2. asked by jas20
3. 1,084 views
Problem #5Business and finance. Kevin earned $165 interest for 1 year on an investment of $1500. At the same rate, what amount
1. 0 answers
2. asked by jas20
3. 1,075 views
help needed to draw lewis structures of hydrogen cyanaide(HCN) and cyanogen(CN)2. I need to show where the electrons are being
1. 0 answers
2. asked by layla
3. 1,062 views
I was just wondering if anybody could explain to me the steps in 'solving systems in substitution' and 'solving systems in
1. 2 answers
2. asked by Otoño
3. 1,029 views
Solve each of the following equations for x.Problem#1 (x)/(6) - (x)/(8) MY answer: x = 24 Problem #2 (x)/(x-2) - (x+1)/(x) =
1. 0 answers
2. asked by jas20
3. 986 views
After graduation, you and 19 friends build a raft, sail to a deserted island, and start a new population, totally isolated from
1. 0 answers
2. asked by Mike
3. 965 views
Precalc stuff..square root of z-1= square root of z +6 are you solving for z? square both sides then solve for z. that's my
1. 0 answers
2. asked by Blondie
3. 926 views
I need an equation for L that satisfies the given geometric condition.L has a y intercept (0,3) and is parallel to the equation
1. 0 answers
2. asked by Tony
3. 907 views
the pizza was sliced into 6 equal pieces. Matrin ate 2 pieces. What fraction of the pizza did he eat. what percent did he eat?If
1. 0 answers
2. asked by
3. 889 views
A 1.50 kg snowball is fired from a cliff 12.5 m high with an initial velocity of 14.0 m/s, directed 41.0° above the horizontal.
1. 0 answers
2. asked by Technoboi11
3. 874 views
what are the challenges of working with rational expressions i've searched in my math book and online i can't seem to find that
1. 0 answers
2. asked by jas20
3. 870 views
A plane flying with a constant speed of 24 km/min passes over a ground radar station at an altitude of 4 km and climbs at an
1. 0 answers
2. asked by Jia
3. 845 views
If a and b are positive integers, and m=lcm(a,b), explain why m divides any common multiple of a and b.The answer is in the
1. 0 answers
2. asked by romulo
3. 837 views
Which element results if 2 protons and 2 neutrons are ejected from a radium nucleus with atomic number 88 and mass number 226 -
1. 0 answers
2. asked by Pedro
3. 835 views
Reactants Oll CH2 = CH - CH - OH + CH3 - CH - CH2 - C l l l CH3 CH3 OH compound 1 compound 2 Products? identify any functional
1. 0 answers
2. asked by Pedro
3. 786 views
when writing, can a claim be true or false depending on the context of the paper?Yes, if that paper is the authority of truth
1. 0 answers
2. asked by trae
3. 786 views
what is '' Le troisieme petit cochon tres est content'' in french?Thank you for using the Jiskha Homework Help Forum. The only
1. 0 answers
2. asked by unnown
3. 786 views
I can't remember the abbreviation for decimeter!Abbreviation: dm thanks hey.... the abb is dm.. 1. Factor 4m²+40m+100 2. The
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2. asked by Jenna
3. 783 views
There are 39 books in the Old Testament an 27 books in the New Testament. Write a ratio in lowest terms to compare the number of
1. 0 answers
2. asked by Jenna
3. 763 views
Are all controversial matters subjective or relative?Yes. con·tro·ver·sial (kŏn'trə-vûr'shəl, -sē-əl) adj. Of,
1. 0 answers
2. asked by Nate
3. 760 views
Can a "claim" have the same meaning as the word "sentence"?Yes, in this context: A claim is a sentence that assets something to
1. 0 answers
2. asked by Missy
3. 755 views
If the radius of a circle is x/6, what's the diameter and circumference?Diameter = 2*r Circumference = 2*pi*r ...or...
1. 2 answers
2. asked by Emily
3. 747 views
3x^2 + 17x + 105y^8 - 125 a^2 - 2ab - 15b^2 4c^2 - 12c + 9 p4 - 1 6y^2 - 54 x^2 + 10x + 21 a^2 - 10ab + 3b^2 5x^2 - 10x x^2 +
1. 0 answers
2. asked by mike
3. 746 views
the isotope caesium -137, which has a half life of 30 years, is a product of nuclear power plants. How long will it take for the
1. 0 answers
2. asked by Pedro
3. 742 views
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.2 cm/min. At what rate is the volume
1. 1 answer
2. asked by Jia
3. 720 views
use the properties of sodium cyanide described above to deduce the type of bonding that holds this compound together, explaining
1. 0 answers
2. asked by Pedro
3. 715 views
where can I find info about the draft for WWI such as what countries used the draft, what the qualifications for going in were,
1. 0 answers
2. asked by ML
3. 712 views
How does dissolving a solute affect the boiling point or freezing point of the solution? What about the solution's vapor
1. 0 answers
2. asked by John
3. 709 views
An agency charges $15 per person for a trip for groups of no less than 30 people. But for each person above the 30, the charge
1. 1 answer
2. asked by Rob
3. 707 views
Are claims about moral issues subjective, objective or a matter of debate?Subjective and a matter of debate (but no one will
1. 0 answers
2. asked by Nate
3. 701 views
what kind of fallacy is "Gold's book doesn't deserve a Pulitzer Prize. She has been married four years."Okay, this site should
1. 0 answers
2. asked by DEb
3. 696 views
When atmospheric pressure is 700. mmHg, water boils at 97.714 degrees C. Calculate entropy change of water if 50.0 grams is
1. 0 answers
2. asked by Chris
3. 692 views
Hoffmans apparatusfind out the energy available per mole of water if it is split into h2 and o2 Data 1 mol of gas at NTP is
1. 0 answers
2. asked by San
3. 685 views
Can anyone tell me what the aldol product would be from a reaction of butanal and sodium hydroxide? I also would like to know
1. 0 answers
2. asked by Steve
3. 685 views
a drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to
1. 2 answers
2. asked by Pedro
3. 684 views
why is there zero current when a light bulb burns out?With the filamnt burned out there is no connection and no connection means
1. 1 answer
2. asked by Megan
3. 681 views
What type of sentence is this?On July 4, 1976, the nation’s bicentennial, 10,741 American flags were flown over the U.S.
1. 0 answers
2. asked by Shanice
3. 672 views
There have been about two years before the birth of Christ for every 3 years of history in all. If 4,000 years passed before
1. 0 answers
2. asked by Jenna
3. 672 views
the sum of a the digits in a two digit # is 11. if the digits are reversed, the new # is 45 more than the original #. What is
1. 0 answers
2. asked by me
3. 672 views
can someone give me examples of the explanatory power of the quantum-mechanical model?Power to explain what? The nature of the
1. 0 answers
2. asked by ashley
3. 666 views
A manufacturer has observed that a certain product tends to fail either very early in its life span or quite late. The engineers
1. 0 answers
2. asked by Jason L
3. 660 views
Why did the Irish, Chinese, and Mexican immigrate?I went to http://www.google.com and entered irish immigrate us and got
1. 0 answers
2. asked by Dallas
3. 655 views
How can I suggest a reason for the deviation for the pH of 4 M HCl?As my answer I put, The pH of 4 M HCl is negative because a
1. 0 answers
2. asked by Meche
3. 648 views
Problem #3Science and medicine. Adriana took 2 h longer to drive 360 mi on the first day of a trip than she took to drive 270 mi
1. 1 answer
2. asked by jas20
3. 646 views
If a and b are positive integers, prove that;ab = gcd(a,b)*lcm(a,b).
1. 0 answers
2. asked by romulo
3. 640 views
Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius of 3.0 106 m, and no atmosphere. A 10 kg space probe is to be
1. 0 answers
2. asked by Technoboi11
3. 633 views
hello to all any one else stuck on question 5 of tma 6?We can't help if you don't post the question. hi wheezer - yes think
1. 0 answers
2. asked by wheezer
3. 631 views
x+y= 304x+2y=74 y+ What does the y+ signify? Are you supposed to solve for y? Try doubling the first equation, giving you 2x +
1. 0 answers
2. asked by JOHN
3. 617 views
I needed to write an essay on how Hamlet is a hypocrite and my three points were that he doesn't obey his father right away, he
1. 0 answers
2. asked by Raj
3. 615 views
If p is prime prove that p^1/2 (root p) is irrational.Generalize the proof that sqrt 2 is irrational. You can find several
1. 0 answers
2. asked by romulo
3. 609 views
Find a polynomial function with real coefficients that has the given numbers as roots: 4, 0, 3, italic ia)x^4-4x^3 +9x^2-36x
1. 0 answers
2. asked by raven 31791
3. 605 views
In a game of pool the cue ball strikes another ball of the same mass and initially at rest. After the collision the cue ball
1. 0 answers
2. asked by Nat
3. 602 views
What are the first steps when making a fuse-tester?Thank you for using the Jiskha Homework Help Forum. There actually is a site
1. 0 answers
2. asked by rean
3. 597 views
wat is a nounafter all these years i have forgotten Thank you for using the Jiskha Homework Help Forum. A good dictionary will
1. 0 answers
2. asked by jose
3. 596 views
Find the roots of the functionf(x)= x^2 +2x+2 a)-1 + sq root of 2 and -1 - sq root of 2 b) -1 + i and -1 - i c)-1 -2i sq root of
1. 0 answers
2. asked by raven 31791
3. 591 views
I am a little confused regarding a question I posted yesterday ("Chem" Tuesday, March 6, 2007 at 9:29pm)I understand the answer
1. 0 answers
2. asked by Marisol
3. 591 views
1. 4x-12/4x2. d+7/d^2-49 3.t2-25/t^2+t20 4.2x^2+6x+4/4x^212x16 5.6y/y^22y24 Can someone help me with these,please,lol,I'm brain
1. 0 answers
2. asked by mike
3. 589 views
what is sulphuric acid made up of, h2so4H2SO4 is sulfuric acid.
1. 0 answers
2. asked by mo.
3. 587 views
COMPLETION AND BALANCING OF EQUATIONSComplete and balance the following equations: 1. ZnCl2 + AgNO3
1. 0 answers
2. asked by Muhammad Ahsan KHan
3. 576 views
For many global companies, China represents a very attractive market in terms of size and growth rate. Yet, it ranks lower in
1. 0 answers
2. asked by AJ
3. 575 views
The time is 6:10. Is the hour hand closer to the 6 or 7? why?What do you think?
1. 0 answers
2. asked by charnelle
3. 575 views
Find two functions that this could be the derivative of:y'=4x+7 Remember the derivative of any constant is zero. take its
1. 0 answers
2. asked by Rob
3. 563 views
COMPLETION AND BALANCING OF EQUATIONSComplete and balance the following equations: 1. ZnCl2 + AgNO3
1. 0 answers
2. asked by Muhammad Ahsan KHan
3. 557 views
If you descend 1800 ft in elevation by the time you are 3.25 mi horizontally away from the top of a mountain, what would be the
1. 0 answers
2. asked by Tony
3. 554 views
Would a substance that does not form hydrogen bonds have a high or low surface tension? What about vapor pressure, specific
1. 0 answers
2. asked by Dave
3. 552 views
Hi AllAoA I need help on Derivation of equation of ellips and hyperbola. Any article, site regarding my question plz?? Thanx
1. 1 answer
2. asked by Usman
3. 551 views
How do you divide and simplify this?squareroot of 162a/6a^3 Thanks sqrt[162a/(6a^3)] = sqrt (27/a^2) = (sqrt 27)/a
1. 0 answers
2. asked by Millie
3. 550 views
What do strong electrolytes, weak electrolytes, and nonelectrolytes have in common?Severl things, I am sure, but one that comes
1. 0 answers
2. asked by Dave
3. 544 views
What kind of fallacy is everybody agrees that we need sstronger drunk-driving laws.http://www.nizkor.org/features/fallacies/
1. 0 answers
2. asked by DEb
3. 541 views
The daily sales, S, in thousands of dollars, is a function of the money, x, spent on advertising (in thousands of dollars)
1. 0 answers
2. asked by Rob
3. 539 views
Find the 4th derivative of y=4x^3-(2/x). Reads: 4x to the third minus 2 divided by x.I will be happy to critique your thinking.
1. 0 answers
2. asked by Rob
3. 532 views
the abbreviated structure formula of the products of the complete hydrolysis of tocainde is required together with any new
1. 0 answers
2. asked by layla
3. 528 views
Can anyone help me with these questions? Please1. ac - bc + ad - bd 2. xy - 3x - 8y + 24 3. 4x2 + 20x + 5y +xy 4. 48x2y + 20xz
1. 0 answers
2. asked by mike
3. 521 views
The sq root of -4 (3-sq root of -9)a)6 +6i b)-6+6i c)6-6i d)-6-6i Again the i's are in italics. I would think that c and d could
1. 0 answers
2. asked by raven 31791
3. 519 views
Let u and v be vectors in R^n, and let T be a linear operator on R^n. Prove that T(u) dot T(v) = u dot vIFF A^T = A^-1 where A
1. 0 answers
2. asked by romulo
3. 515 views
I'm trying to teach myself the rest of my AP bio book before the exam, and i don't get this stuff on development and
1. 0 answers
2. asked by blondie07
3. 513 views
If a salesman is paid a $2,100 commission on the sale of a $35,000 sailboat, what is his commission rate?six percent
1. 0 answers
2. asked by nettie
3. 499 views
what do u mean by 'angles in the same segment'.My teacher explained a sum using this property.But I couldn't understand.PLs
1. 0 answers
2. asked by agnkurup
3. 497 views
Calculate the pH of a solution composed of 155mL of 0.1 M acetic acid and 45 g of sodium acetate. The pKa of acetic acid is
1. 0 answers
2. asked by Marisol
3. 494 views
Why does the filament glow more brightly as the electric current in a lightbulb is increased?The glow is dependent on two
1. 0 answers
2. asked by Megan
3. 484 views
Can anyone help me with these questions? Please1. ac - bc + ad - bd 2. xy - 3x - 8y + 24 3. 4x^2 + 20x + 5y +xy 4. 48x^2y + 20xz
1. 0 answers
2. asked by mike
3. 484 views
what is the max number of electrons that can occupy the n=4 quantum shell?max number of electrons in shell n? 2n^2
1. 0 answers
2. asked by bryn
3. 479 views
I am required to give two examples of atoms/molecules from tocanide that can bind itself to receptor sites in the body via
1. 0 answers
2. asked by layla
3. 473 views
When experimentally determining the rate law, i am getting a negative fraction. is that right or am i doing something wrong?It
1. 0 answers
2. asked by Kara
3. 465 views
what is a pharynx?Check this site for a diagram of an earthworm, including the pharynx.
1. 0 answers
2. asked by nancy
3. 462 views

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