Questions Asked on April 11, 2008

Given Information: Light of wavelength 631 nm passes through a diffraction grating having 485 lines/mm.Part A: What is the total
1. 2 answers
2. asked by Christina
3. 3,530 views
a solution saturated in calcium hydroxide(limewater) has a pH of 12.35. What is Ksp for calcium hydroxide?How do i start this
1. 3 answers
2. asked by LT
3. 2,761 views
An excited atom decays to its ground state and emits a green photon. If the atom decayed to an intermediate state instead, the
1. 2 answers
2. asked by Molly
3. 2,272 views
1)When the currents in two parallel metal conductors are in the same direction, the conductors ___ each other.A)attract B)repel
1. 3 answers
2. asked by Jon
3. 2,271 views
1)Which of the following statements about X rays is incorrect?A)x rays darken photographic plates B)x rays can penetrate soft
1. 2 answers
2. asked by Jon
3. 2,264 views
1)A current-carrying conductor is kept at right angles to the direction of a magnetic field. What happens to the force acting on
1. 1 answer
2. asked by Jon
3. 1,971 views
A ruler is accurate when the temperature is 25°C. When the temperature drops to -16°C, the ruler shrinks and no longer
1. 3 answers
2. asked by Johnson
3. 1,842 views
The correct interpretation of the equation below is:?Fe3+(aq) + SCN¨C(aq)¡ú FeSCN2+(aq) A. The reaction is incomplete because
1. 2 answers
2. asked by david
3. 1,712 views
is 2tanx the same as tan2x?
1. 1 answer
2. asked by anon
3. 1,423 views
A rocket with a mass M moves along an x axis at the constant speed vi=40 m/s. A small explosion separates the rocket into a rear
1. 1 answer
2. asked by Kristin
3. 1,323 views
Kate Chopinâ€™s stories are essentially about the struggle of freedomKate Chopin was one of the most individual and
1. 1 answer
2. asked by Baby
3. 1,290 views
1)The polarity of an electromagnet can be determined using the second right-hand rule.true. 2)Current passing through a
1. 1 answer
2. asked by Jon
3. 1,247 views
Supppose an atom has four distinct energy states. Assuming all transitions are possible, how many spectral lines can this atom
1. 1 answer
2. asked by Molly
3. 1,243 views
I am rather curious to find out how the idea of ethnocentrism is displayed in the novel "Dancing Skeletons: Life and Death in
1. 2 answers
2. asked by Susan
3. 1,238 views
When water is electrolyzed, two gases ar produced. As indicated in the chemical equation, twice the volume of one gas is
1. 1 answer
2. asked by Sam
3. 1,204 views
Jane forest wants to receive yearly payments of 15000.00 for 10 years. How much must she deposit at her bank today at 11%
1. 4 answers
2. asked by Scott Ingraham
3. 1,185 views
The mass of an atomic nucleon (proton or neutron) is about ..... times larger than the mass of an electron.33?
1. 1 answer
2. asked by Molly
3. 1,171 views
Is American Sign Language used worldwide? Or is there a different kind of sign language for different countries?
1. 3 answers
2. asked by sarah
3. 1,163 views
Let f(x) = 1/xEvaluate and plot g(x)= -f(2x) + 1 Start with the innermost transformation and work outward in steps. There are 3
1. 0 answers
2. asked by Sarah
3. 1,153 views
A 0.21 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position,
1. 1 answer
2. asked by Johnson
3. 1,151 views
I am eating a snow cone in a paper cone with a height of 21cm and the radius of my snow cone ice is 3.25 cm.Find the amount of
1. 3 answers
2. asked by Angelita Marie
3. 1,106 views
1)The direction of the force on doubly ionized helium atoms(alpha particles)moving at right angles to a magnetic field is
1. 1 answer
2. asked by Jon
3. 1,101 views
1)An increase in the velocity of wire moving perpendicular through a magnetic field increases the induced EMF.true. confused me
1. 1 answer
2. asked by Jon
3. 995 views
Also, can you tell me where to find information on General Appearance.This is my question I need to find the information on. If
1. 1 answer
2. asked by Justie
3. 994 views
I need help with 4 mat problems. I do not know how to set up to solve.x/8=-6 -4/9+(-5/7) x-4/5=6/7 7/x=?/xsquared
1. 1 answer
2. asked by will
3. 986 views
EssayImpacts of West Indian Manatee& Jamaican: on the Caribbean's economy
1. 1 answer
2. asked by mich
3. 954 views
Write down a sentence in a contraction in each box.Write down a sentence having a contraction in each box. Write down a sentence
1. 1 answer
2. asked by John
3. 951 views
Does the de Broglie model assert that an electron must be moving in order to have wave properties?
1. 2 answers
2. asked by Tammy
3. 946 views
Can someone explain how to write 7/16 as a percent?
1. 1 answer
2. asked by Anonymous
3. 931 views
I need help the question isConvert 25 x 10 to the 25th molecules of CO2 to grams of CO2. I know that one molecule of CO2 is
1. 1 answer
2. asked by Tiffani
3. 925 views
Do you know, by chance, how scientists discovered the make-up of DNA? Was it via a microscope and if so, what type of microscope
1. 1 answer
2. asked by will
3. 910 views
Can someone translate this to English, please?el dia 5 de febrero compre un reloj nuevo de la marca seiko en ebay del vendedor
1. 8 answers
2. asked by Tadeo
3. 902 views
A boat that travels at 16 knots in calm water is sailing across a current of 3 knots on a river 250 m wide. The boat makes an
1. 1 answer
2. asked by Natalie
3. 895 views
i need help with this one problem on a cross word, i couldn't find it any where in the text book.... (blank)factors; reasons why
1. 4 answers
2. asked by Lorenzo
3. 857 views
what is the name of desert name at west side of south america. and at northern side of africa
1. 1 answer
2. asked by Thabelo
3. 851 views
The north pole of a compass is attracted to the north magnetic pole of the earth, yet like poles repel. Can you resolve this
1. 1 answer
2. asked by Angelina
3. 849 views
1)When does a magnetic field induce maximum EMF in a wire moving with a constant velocity?when the wire is moved at right angles
1. 1 answer
2. asked by Jon
3. 843 views
Uranium-238 is 238 times more massive than hydrogen. Why, then, isn't the diameter of the uranium atom 238 times that of the
1. 0 answers
2. asked by Kara
3. 801 views
Which color light is the result of a greater energy transition, red or blue?
1. 0 answers
2. asked by Kara
3. 793 views
1. (sinx/cscx)+(cosx/secx)=12. (1/sinxcosx)-(cosx/sinx)=tanx 3. (1/1+cos s)=csc^2 s-csc s cot s 4.
1. 1 answer
2. asked by Tom
3. 792 views
can you solve this equation by using simultaneous equations and can you write the method please?Sarah and Louise have a combined
1. 4 answers
2. asked by loooooooser
3. 780 views
1. (sec^2x-6tanx+7/sec^2x-5)=(tanx-4/tanx+2)2. (sin^3A+cos^3A/sinA+cosA)=1-sinAcosA 3. csc^6x-cot^6x+1+3csc^2xcot^2x please help
1. 1 answer
2. asked by George
3. 777 views
1)An electromagnetic wave is produced by:an accelerating charged particle or changing magnetic fields. 2)Find the period of an
1. 5 answers
2. asked by Jon
3. 753 views
If the electron in a hydrogen atom obeyed classical mechanics instead of quantum mechanics, would it emit a continuous spectrum
1. 1 answer
2. asked by Kara
3. 750 views
Lab: Creating a Redox TablePurpose: The purpose of this lab exercise is to construct a table of relative strengths of oxidizing
1. 4 answers
2. asked by Joseph
3. 745 views
How does Rutherford's model of the atom account for the back-scattering of alpha particles directed at the gold foil?
1. 2 answers
2. asked by Kara
3. 732 views
When an electron makes a transition from its first quantum level to ground level, the energy difference is carried by the
1. 1 answer
2. asked by Kara
3. 710 views
Heavier atoms are not appreciably larger in size than light atoms because the nuclei of heavy atoms have more....nuclear energy?
1. 2 answers
2. asked by Molly
3. 696 views
Can you provide me with a simple understanding of fick's law. Basically just for a grade 11 student to understand what symbols
1. 1 answer
2. asked by Zev
3. 669 views
Okay, fill in the blanks......Oceans affect climates by ______ the rise and fall of air tempature. (slowin, speeding up) A rain
1. 6 answers
2. asked by Caitlyn PLEASE DUE TOM.
3. 663 views
When CO2(g) (0.118 mol/L) and H2(g) (3.90 mol) in a 33.0 L reaction vessel at 980K are allowed to come to equilibrium the
1. 1 answer
2. asked by Riley
3. 640 views
1)A 0.050 m long wire is carrying a current of 2.0 A at right angles to a 0.15 T magnetic field. What is the magnitude of the
1. 1 answer
2. asked by Jon
3. 630 views
7 divided by 10 1/2
1. 1 answer
2. asked by Jami
3. 627 views
1)An electromagnetic wave has a wavelength of 6.2 x 10^14 n. What is the frequency of the wave?3.00 x 10^8 * 6.2 x 10^14 1.8 x
1. 1 answer
2. asked by Jon
3. 621 views
My lab teacher told me to leave my sample mixture of 2-bromobutane and 2-chlorobutane in a solution 1-2ml of sodium bicarbonate.
1. 0 answers
2. asked by ~christina~
3. 619 views
Summarize Paris' request of Capulet, and Capulet's response?
1. 1 answer
2. asked by ROBERT
3. 618 views
I keep getting an answer with an exponent and i am not sure what i have done wrong here. Any help is appreciated.To save for his
1. 3 answers
2. asked by Marisol
3. 617 views
Find the radius of a right cone with slant height 21 m and surface area 168pi m2
1. 1 answer
2. asked by Angelita Marie
3. 615 views
In 1906, J. J. Thomson won the Nobel Prize for the discovery of the .....electron?
1. 2 answers
2. asked by Molly
3. 614 views
In Rutherford's Gold Foil experiment, he bombarded gold with alpha particles and discovered the ....electron?
1. 3 answers
2. asked by Molly
3. 612 views
The initial concentration for the compounds involved in the reaction shown were determine to be [CO]=1.80, [CL2]=9.70;
1. 9 answers
2. asked by Help ASAP!!
3. 609 views
describe the genetics of the huntigton diseasea. what chromosomes are affected? b. is it a result on translocation/ c. is it a
1. 2 answers
2. asked by natacha? HUNTINGTON DISEASE
3. 608 views
In Spain, does any1 know the main king that lived the longest?????
1. 1 answer
2. asked by Caitlyn PLEASE DUE TOM.
3. 603 views
Can someone check my answers for the following problems.Simplify. Assume that no denominator equals 0. 1)(7x^2+3x-9)-(-x^2+8x-3)
1. 6 answers
2. asked by Alegebra2
3. 601 views
I have to write a weather report.Does anyone have any tips, pointers for the tppic, How have scientists been able to describe
1. 1 answer
2. asked by Caitlyn PLEASE DUE TOM.
3. 593 views
How can elements with low atomic numbers have so many spectral lines?
1. 1 answer
2. asked by Tammy
3. 591 views
please could someone help me . i need to write a front page newspaper article about queen mary 1 i need to include pictures and
1. 1 answer
2. asked by hannah
3. 583 views
how do you solve linear programming questions?
1. 1 answer
2. asked by quantez
3. 581 views
Hi,Can someone proofread and check my grammar please? Is there any chance I can post the website of this article in order to get
1. 2 answers
2. asked by Thank you. =)
3. 572 views
According to Bohr, an electron in an excited state could give off .....a continuous cascade of photons for a high-level
1. 2 answers
2. asked by Molly
3. 572 views
Could you please help me.When water is electrolyzed, two gases ar produced. As indicated in the chemical equation, twice the
1. 0 answers
2. asked by Samantha
3. 565 views
Discuss the similarities and difference between cable communication and traditional television broadcasting.and include the
1. 1 answer
2. asked by Jean
3. 560 views
In 1923, Robert Millikan won the Nobel Prize for discovering the mass of the ....electron?
1. 1 answer
2. asked by Molly
3. 559 views
Steroids in the world of AthletesIn the last decade many records have been broken in the world of athletics, is this do to
1. 5 answers
2. asked by Walker
3. 556 views
The spectral lines for elements are sometimes called atomic.....spectra?
1. 1 answer
2. asked by Molly
3. 555 views
Can you tell me where I can find out this information? I'm stumped on my homework on this one.When suing for damages, a
1. 1 answer
2. asked by Justie
3. 554 views
In what ways would you expect a fetus to differ from an animal some time after birth?
1. 8 answers
2. asked by natash
3. 551 views
The domestic economy's consumption possibilities curve can be greater than the domestic economy's production possibilities
1. 1 answer
2. asked by Molly
3. 550 views
What is the difference between a spontaneous and a non spontaneous reaction?
1. 2 answers
2. asked by Sumaita
3. 547 views
WHAT ARE THE NAMES OF ALL THE CARICOM COUNTRIES
1. 1 answer
2. asked by KENNESHA
3. 533 views
What is divisor. Dividend quotient
1. 1 answer
2. asked by sonia
3. 525 views
What evidence supports the notion that light has wave properties? What evidence supports the view that light has particle
1. 1 answer
2. asked by Tammy
3. 523 views
I need help answering this question?Weather balloons are only partially inflated before they are released into the atmosphere.
1. 1 answer
2. asked by Lisa
3. 516 views
Why and how could you apply critical thinking when evaluating each of the following: articles, advertising, media and
1. 0 answers
2. asked by Caroline kutzler
3. 504 views
what are environmental benefits and challenges of urbanization?
1. 1 answer
2. asked by brady
3. 495 views
what website can i go on for egypt
1. 2 answers
2. asked by 2548
3. 495 views
Did Einstein support quantum mechanics as being fundamental physics, or did he think quantum mechanics was inconclusive?
1. 1 answer
2. asked by Tammy
3. 494 views
Minerals ener the plant through the soil solution. SOme are passively carried along with the ater that is taken up. Plants can
1. 0 answers
2. asked by natash
3. 490 views
How does the amplitude of a matter wave relate to probability?
1. 1 answer
2. asked by Tammy
3. 489 views
I was doing some work on the Fluid Mosaic Model.I need to list the parts and functions. I have the following parts; glycolipid,
1. 3 answers
2. asked by Brad
3. 488 views
can someone please help me with this question.Give me an example of a jellyfish and a eagle body plan or internal structures.
1. 0 answers
2. asked by Dj
3. 488 views
What is 7x7=
1. 1 answer
2. asked by Shannon
3. 471 views
Henry has $240 more than my cousin Joe, who has $150 more than my friend Ann. Together thethree people have $990. The amount Ann
1. 1 answer
2. asked by sridhar
3. 456 views
I would just like to say Thank you to everyone who devotes their time to help us with our homework.THANKS SO MUCH!!!
1. 2 answers
2. asked by Angelita Marie
3. 445 views
what spiritual purpoe do you think they serve for indigenous people?
1. 1 answer
2. asked by Linda
3. 444 views
Find the set of all integers, n, for which the fraction20/(10-n*n) is an integer I used n*n for n squared I figured that 10-n*n
1. 1 answer
2. asked by Terri
3. 424 views
true or false-Homozygotes for the BRCA1 allele will definitely get breast cancer.
1. 1 answer
2. asked by naomi
3. 414 views
In the Symposium how do most people go about trying to gain inmortality according to Diotima and what about those pregnant in
1. 1 answer
2. asked by Wanetta
3. 413 views
i know that "hay" is there are or there is... but how do you say there was??
1. 1 answer
2. asked by kasey
3. 408 views
How do you sayFormula One Grand Prix I really need to know. Thanx!
1. 4 answers
2. asked by I like pie
3. 395 views

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