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Questions Asked on March 15, 2010

A light beam strikes a piece of glass at a 60.00° incident angle. The beam contains two wavelengths, 450.0 nm and 700.1 nm, for
1. 2 answers
2. asked by John
3. 4,411 views
The graph of y=x^2 is reflected in the x-axis, then stretched vertically by a factor of 2, and then translated 3 units to the
1. 1 answer
2. asked by Sandy
3. 4,283 views
A small motor runs a lift that raises aload of bricks weighing 836N to a height of 10.7m in 23.2s. assuming that the bricks are
1. 2 answers
2. asked by Cody
3. 4,034 views
Methylamine (CH3NH2) forms hydroxide ions in aqueous solution. Why is methylamine a Brønsted-Lowry base but not an Arrhenius
1. 1 answer
2. asked by Sean
3. 4,024 views
Kb for aniline is 4.3 x 10^-10. What does this tell you about aniline? Please help!
1. 1 answer
2. asked by Paul
3. 3,723 views
After a tornado, a 0.55g straw was found embedded 2.3cm into the trunk of a tree. if the average force excerted on the straw by
1. 3 answers
2. asked by Stevie
3. 3,713 views
Why are coefficients used in mole ratios instead of subscripts
1. 3 answers
2. asked by Kayla
3. 3,226 views
A baseball is thrown straight up from the rooftop 192 feet high. The function s(t)=16t^2+-64t+192 describes the ball's height
1. 1 answer
2. asked by Anonymous
3. 3,009 views
Complete and balance this equation for a combination reaction.Be + O2 ==> Would it be Be + O2 ==> BeO2 ? or... 2Be + O2 ==> 2BeO
1. 1 answer
2. asked by Jack
3. 2,886 views
how to write the oxidation number for CL4
1. 1 answer
2. asked by Sienna
3. 2,617 views
100 mL of each of the following solutions is mixed; which one of the mixed solutions is a buffer?A) 1.0 M NH3(aq) + 0.6 M
1. 1 answer
2. asked by Trixie
3. 2,575 views
Which of the fallowing compounds may be Arrhenius acids: CH4, SO2, H2S, Ca3(PO4)2Can you please explain how you got the answer
1. 1 answer
2. asked by Sean
3. 2,556 views
calculate the moles of aluminum ions present in 250.0 g of aluminum oxide??
1. 1 answer
2. asked by jeaninne
3. 2,445 views
How do you balance this equation?Zn(s) + HNO3(aq)--> Zn(NO3)2(aq) + N2O(g) + H2O(l)
1. 3 answers
2. asked by Ana
3. 2,438 views
consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of the
1. 4 answers
2. asked by alex
3. 2,413 views
Which of the following systems could act as a buffer?A. HCl/Cl- B. NaOH/OH- C. HSO4-/SO4-2 D. H3O+/OH- E. All of the above my
1. 1 answer
2. asked by Trixie
3. 2,313 views
An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W, of power to the ice cube and that it takes 32,200 J
1. 2 answers
2. asked by Rosco
3. 1,986 views
a atapult launcher on an aircraft carrier accelerates a jet from rest to 72m/s. The work done catapult during the launch is 7.6
1. 1 answer
2. asked by Clayton
3. 1,957 views
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to
1. 2 answers
2. asked by GGIFT
3. 1,878 views
Can you please tell me whats right and whats wrong..Thank you.Part I: True or False 1. The following word group is a FRAGMENT:
1. 2 answers
2. asked by Lorie
3. 1,735 views
Which of the following would increase the amount that a person could afford to spend on a home?a)increased family income
1. 1 answer
2. asked by vedrana
3. 1,704 views
Alex is developing the marketing strategy for a brand of men's clothing. Before he develops his strategy, Alex will conduct
1. 1 answer
2. asked by Anonymous
3. 1,673 views
how much CuSO4.5H2O is required to prepare 100 ml of a .050M aqueous stock solution?
1. 3 answers
2. asked by jen
3. 1,594 views
a satellite camera takes a rectangular - shaped picture. the smallest region that can be photographed is a 4 - km by 6 - km
1. 1 answer
2. asked by Billy
3. 1,372 views
Problem:In a first order decomposition reaction, 50% of a compound decomposes in 10.5 minutes. What is the rate constant of the
1. 1 answer
2. asked by Help
3. 1,345 views
Hey, i am not doing good in my English 102 class, my professor says i address my writing prompt in the wrong direction. So i was
1. 6 answers
2. asked by Bakr
3. 1,331 views
The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not
1. 1 answer
2. asked by mm.
3. 1,299 views
How much force does an 71 {\rm kg} astronaut exert on his chair while sitting at rest on the launch pad?Express your answer
1. 2 answers
2. asked by norm
3. 1,290 views
Prepare a 700 to 1,050-word paper in which you explain the relationship among professional values, ethics, and career success.
1. 1 answer
2. asked by Alida
3. 1,265 views
20. Three common characteristics of adult vertebrates area. skull, notochord, and complex organ system b. backbone,
1. 0 answers
2. asked by mysterychicken
3. 1,146 views
20. Three common characteristics of adult vertebrates area. skull, notochord, and complex organ system b. backbone,
1. 2 answers
2. asked by mysterychicken
3. 1,145 views
a worker in a city park needs to cover a circular path around the outside of a flower garden with gravel. the radius of the
1. 1 answer
2. asked by Katherine
3. 1,116 views
Complete and balance this decomposition reactionHI ==> is this reaction HI ==> H + I ? or... HI ==> H2 + I2 ? why?
1. 1 answer
2. asked by Jack
3. 1,106 views
Two current carrying wires cross at right angles as indicated in the figure.If the wires are not restrained, what statement best
1. 5 answers
2. asked by mm.
3. 1,093 views
Write the numeral in base ten.130five
1. 2 answers
2. asked by Tyga
3. 1,076 views
after the rain ended, the sky became blue --is this a complex sentence?
1. 1 answer
2. asked by jacob
3. 1,075 views
Write the following statement in if - then form.David will sing provided Eric plays the piano. i don't get get this
1. 2 answers
2. asked by amy
3. 1,054 views
34. In two or three well-developed paragraphs, list four federal laws that relate to mining and reclaiming mined land, and state
1. 3 answers
2. asked by y912f
3. 1,034 views
A BAG CONTAINS 3 RED CHIPS, 2 BLUE CHIPS AND 1 WHITE CHIP. IF 2 CHIPS ARE CHOSEN FROM THE BAG WITHOUT REPLACEMENT DETERMINE THE
1. 1 answer
2. asked by RAMATU
3. 1,028 views
I need to write a explication about this poem, can you help?A poem comes straight from inside the heart A poet with his own poem
1. 1 answer
2. asked by Anonymous
3. 1,016 views
A 25.00 ml sample of a standard solution containing 1 g of CaCO3/L required 25.20 ml of EDTA to fully complex the Ca present.
1. 5 answers
2. asked by Anonymous
3. 1,009 views
A prism has total surface area of 360 m2 and volume of 60 m3.If the length, width, and height are reduced to half their original
1. 4 answers
2. asked by Eric
3. 1,000 views
if a satellite were to be launched with too little speed or too much speed then what would happen?If a sattellite were to be
1. 1 answer
2. asked by Sara
3. 988 views
What is the kinetic energy of a 62kg cyclist if she is moving on her bicycle at 8.2 m/s?
1. 1 answer
2. asked by trisha
3. 987 views
An electron and a proton execute uniform circular motion in the presence of a uniform magnetic field.If the radius of the circle
1. 2 answers
2. asked by mm.
3. 986 views
'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources
1. 2 answers
2. asked by mysterychicken
3. 981 views
Can you please check theseChoose A. Le caissier m'a donné 200 euros en liquide. B. Je suis toujours fauché. C. Le caissier m'a
1. 1 answer
2. asked by Vanessa
3. 980 views
A manufacturer of graphing calculators has determined that 11,000 calculators per week will be sold at a price of $90 each. At a
1. 1 answer
2. asked by kiley
3. 971 views
1.An elastic cord is 5.0m long and 1.0cm in diameter and acts as a spring with spring constant 70 N/m, what is the young's
1. 1 answer
2. asked by Sandhya
3. 964 views
rocket engines which work in space still need oxygen 4 the fuel to bur. space is a vacuum. where does the oxygen come from? I'm
1. 3 answers
2. asked by Sara
3. 963 views
Ok, I think both of these are syndicated but im so confused!The type of programming aired by a station with which they
1. 0 answers
2. asked by Kevin
3. 947 views
Find the exact value of:sin [2sin^-1 (-sq rt (3)/2)] how do i answer this question? i don't know how to find the answer.
1. 1 answer
2. asked by Katie
3. 940 views
31. I had hoped the police would blame Bruce, not ___.__ me __ myself __ mineself __I 32. Some interviewers ____ have a clear
1. 4 answers
2. asked by Lorie
3. 938 views
Hi thank you so much!!!!What is a net ionic equation for the reaction of H+ with Cu(NH3)4 ^2+ ALSO what is the net ionic
1. 2 answers
2. asked by Kiki
3. 936 views
find the range of the function defined by the equation and the given domain.f(x)=3/x-6; D={-3,0,3,9}
1. 1 answer
2. asked by kiley
3. 931 views
Todd is applying for a $100,000 mortgage.He can get a $600 monthly payment for principal and interest and no points,or $520
1. 1 answer
2. asked by vedrana
3. 923 views
The ABC Computer Corporation is considering an increase in its annualadvertising expenditure from $10 million to $15 million for
1. 0 answers
2. asked by nabeela
3. 922 views
A rigid insulated closed tank consists of two compartments of equal volume separated by a valve. Initially one contains air at
1. 5 answers
2. asked by spencer
3. 921 views
Create a timeline tracking the major themes shifts in american history from the developement of sectionalism in the early 1900s.
1. 1 answer
2. asked by Dellaine
3. 909 views
Research PaperI need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs
1. 1 answer
2. asked by y912f
3. 901 views
A 17.1 cm focal-length lens is used to project 35 mm slides onto a screen 4.77 m from the projector lens. What must be the width
1. 1 answer
2. asked by Andy
3. 894 views
my second health problem i had to choose is high blood pressure and i cant find more about it for this paper i need more words
1. 4 answers
2. asked by bobbi help please
3. 877 views
What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and
1. 1 answer
2. asked by norm
3. 872 views
Television sets: What does it mean to refer to a 20-inch TV set or a 25-inch TV set. Such units refer to the diagonal of the
1. 1 answer
2. asked by Terri
3. 855 views
What's your favorite class?1. It's a math class. 2. It's math class. 3. It's math classes. 4. Math class is my favorite. 5. Math
1. 1 answer
2. asked by rfvv
3. 842 views
I have a 7 sided shape that looks like an octagon, but it only has 7 sides. Is it a rhombus, a square, a parallelogram, a kite,
1. 3 answers
2. asked by Sam
3. 837 views
A Boeing 747 jet takes off from Boston's Logan Airport, which is at sea level, and climbs to a cruising altitude of 27,000 ft at
1. 1 answer
2. asked by kiley
3. 819 views
The joined cells, now called a blastocyst, move toward and attach to the mother's uterine lining. How long does this take?
1. 0 answers
2. asked by amy
3. 815 views
What mass iron(III) oxide could be produced from 8.2 mol of oxygen gas in the synthesis of iron(III)?(Balanced equation)
1. 1 answer
2. asked by Ruby
3. 799 views
Hi! could anyone help me with this question please, I really don't know how to do this at all. Thank you so much.Question:A 330
1. 1 answer
2. asked by Chan
3. 797 views
Nitroglycerine decomposes according the the equation: 4C3H5(NO3)3 -> 12 CO2 + 10 H2O +6N2 + O2. 15.0 g of nitroglycerine is
1. 2 answers
2. asked by Ben
3. 795 views
A bag contains 4 white marbles, 3 red marbles, 2 green marbles, and 1 yellow marble. what is the probability of reaching in the
1. 1 answer
2. asked by zac
3. 785 views
o According to research and news reports within the past 2 years, what are some of the changes the United States has made to
1. 7 answers
2. asked by chadisia
3. 774 views
20. Three common characteristics of adult vertebrates area. skull, notochord, and complex organ system b. backbone,
1. 0 answers
2. asked by mysterychicken
3. 764 views
assuming x=1, how much CuSO4.5H20 would you need to prepare 6 grams of copper ammine complex?
1. 3 answers
2. asked by jess
3. 753 views
How many kilojoules of heat are released when 25.0 g of {\rm CO}(g) reacts completely with {\rm H_2}(g) to form {\rm CH_3OH}(g)
1. 1 answer
2. asked by Ryan
3. 746 views
How do I solve the equations using the elimination method:.3x-.2y=4 and .4x +.3y= 49/23 Normally I would multiply the decimals
1. 0 answers
2. asked by bob
3. 711 views
A participant in a cognitive psychology study is given 50 words to rememberand later asked to recall as many as he can of them.
1. 0 answers
2. asked by Jennifer
3. 710 views
A shoe manufacturer determines that the annual cost of making x pairs of one type of shoe is $30 per pair plus $100,000 in fixed
1. 0 answers
2. asked by Rony
3. 701 views
Prepare a 700 to 1,050-word paper in which you explain the relationship among professional values, ethics, and career success.
1. 2 answers
2. asked by Alida
3. 699 views
Whats Wrong with my thesis on Great migration?The Great migration was the movement of African Americans traveling from the South
1. 1 answer
2. asked by Jeremy
3. 697 views
The standard electrode potentials for three electrode systems are:Ti^3+(aq) + e^- --> Ti^2+ E= -0.37 Fe^3+ ---> Fe^2+(aq) E=
1. 1 answer
2. asked by Kari
3. 693 views
Gold ions (Au+) are accelerate to high speeds using electric fields.These ions are then passed through a region where uniform
1. 2 answers
2. asked by mm.
3. 692 views
Posted by norm on Monday, March 15, 2010 at 9:21am.What is the minimum downward force on the box in the figure that will keep it
1. 1 answer
2. asked by norm
3. 684 views
We conducted a lab with antacids in class the other day and i'm having trouble doing the calculations. Well we basically took
1. 1 answer
2. asked by Anonymous
3. 679 views
Suggest two experimental errors which would result in too low a value for the acid EW. Explain how these errors result in a low
1. 2 answers
2. asked by Stephany Toussaint
3. 678 views
Determine the concentration of Mg2+ (in mmol/L) in the unknown solution (Note: details and additional information to solve the
1. 2 answers
2. asked by Johnathan
3. 676 views
What is the activation energy for a reaction whose rate is tripled by a temperature increase from 28 to 53 C? I understand that
1. 6 answers
2. asked by Jeena
3. 672 views
hello :)I wrote a story with preterit in that story the man talks of what happened 10 years before (It's a bet, he should be
1. 11 answers
2. asked by MARIE
3. 672 views
Suppose that we had used 25.5cm3 of 0.200M NaOH and 42cm3 of dilute HCl to reach the end point. What is the molarity of the Hcl
1. 1 answer
2. asked by Anonymous
3. 671 views
What does is mean that "emissions trading has propertitized pollution"?
1. 2 answers
2. asked by Anonymous
3. 666 views
I made a few more changes. Let's hope everything is fine this time. Thank you.1) Mr Utterson decides to look for Mr.Hyde. At
1. 1 answer
2. asked by Franco
3. 664 views
hey I need help. Can you finish this sentance, using one of these words?Words powstanie niepodleg³oœci rosyjskim emigracji
1. 3 answers
2. asked by Nikki
3. 664 views
1. If a steel rope and a nylon rope of equal lengths are to stretch by equal amounts when subjected to equal tensions, what must
1. 1 answer
2. asked by Sandhya
3. 658 views
3. You decide to borrow $200,000 to build a new house. The bank charges an interest rate of 6% compounded monthly. If you pay
1. 1 answer
2. asked by ananoumous
3. 657 views
Consider the following data about the goods market in a hypothetical closed economy. Assume that government expenditure is
1. 0 answers
2. asked by sonia
3. 657 views
WHAY IS GLOBAL ECONOMIC CRISIS?
1. 1 answer
2. asked by SH
3. 657 views
Harry borrowed $1,800 for two years at 13% a year under anadd-on plan. He repaid the loan, including interest, in 24 equal
1. 1 answer
2. asked by puppy101``
3. 653 views
(a)At a certain instant, a particle-like object is acted on by a force F = (4.0 N)i - (2.0 N)j + (9.0 N)k while the object's
1. 1 answer
2. asked by sel
3. 647 views
Resources: Ch. 5 of Visualizing Environmental Science and Appendix C„h Due Date: Day 2 [Main forum] „h Review Ch. 5, The
1. 1 answer
2. asked by Anonymous
3. 643 views

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