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2011
March

Questions Asked on March 27, 2011

An open box of maximum volume is to be made from a square piece of cardboard, 24 inches on each side, by cutting equal squares
1. 4 answers
2. asked by Anonymous
3. 12,472 views
Using the activity series, write a balanced chemical equation for the following reactions:1. iron metal is added to a solution
1. 4 answers
2. asked by Jessica
3. 8,986 views
f $20,000 is invested in a savings account offering 3.5% per year, compounded continuously, how fast is the balance growing
1. 3 answers
2. asked by LA
3. 5,160 views
Find f(1), f(2), and f(3) if f(n) is defined recursively by f(0) = 1 and for n = 0, 1, 2, . . .• f(n+1) = f(n) + 2 So, would
1. 11 answers
2. asked by Francesca
3. 4,786 views
A spring with k=40.0 N/m is at the base of a frictionless 30.0 degree inclined plane. A 0.50-kg object is pressed against the
1. 2 answers
2. asked by Anonymous
3. 3,958 views
Why is it important to keep the NaOH solution (being used during titration) stoppered at all times when it is not in use? And
1. 1 answer
2. asked by Cassie
3. 3,588 views
Arrange the following 0.1 M solutions in order of increasing pH and state why you placed eachsolution in that position: NaCH3COO
1. 1 answer
2. asked by Kat
3. 3,376 views
1. What do you not like doing?2. What don't you like doing? 3. What do you hate doing? 4. What do you dislike doing? -I don't
1. 3 answers
2. asked by rfvv
3. 3,226 views
what are the disadvantages of non aqueous titrations
1. 1 answer
2. asked by venkataramanaiah
3. 3,051 views
What chemical reaction is responsible for the endpoint observed when the NH3/NH4Cl buffer solution is titrated with HCl? Write a
1. 3 answers
2. asked by redgy
3. 2,891 views
Write a function rule for the area of a triangle whose base is 4 ft more than the height. What is the area of the triangle when
1. 2 answers
2. asked by thalia
3. 2,881 views
PLEASE HELP-DUE APRIL 5TH, 2011!!!!EARTHQUAKES an earthquake rated at 3.5 on the Richter scale is felt by many people, and an
1. 2 answers
2. asked by Lindsey
3. 2,613 views
Titration of an Unknown Acid...What effect on the molar mass of the unknown acid would each of the following have... Would it
1. 1 answer
2. asked by K
3. 2,594 views
A brick of mass 1.0 kg slides down an icy roof inclined at 30.0 degrees with respect to the horizontal. (a) If the brick starts
1. 1 answer
2. asked by Physics
3. 2,558 views
The current price of a stock is $33, and the annual risk-free rate is 6%. A call option with a strike price of $32 and with 1
1. 1 answer
2. asked by katu
3. 2,426 views
What is the net ionic equation when NaOBr is dissolved in water and the Ksp if the Ksp of the dissocataion of HOBr is 6.4 *
1. 2 answers
2. asked by james
3. 2,344 views
Ka for hypochlorous acid,HClO is 3.0x10^-8. Calculate the pH after 10.0, 20.0, 30.0, and 40.0mL of 0.100M NaOH have been added
1. 2 answers
2. asked by Christian
3. 1,983 views
what should be the resistance of a heating coil which will be used to raise the temperature of 500 grams of water from 28
1. 3 answers
2. asked by Anonymous
3. 1,914 views
The amount of 2.00 mol of a solid ionic compound was dissolved in 225 mL of water in an insulated container. The initial temp of
1. 4 answers
2. asked by carla
3. 1,894 views
A student titrated a solution containing 3.7066 grams of an unknown triprotic acid to the end point using 28.94 milliliters of
1. 2 answers
2. asked by Cassie
3. 1,825 views
When a square piece of paper is folded in half vertically, the resulting rectangle has a perimeter of 39cm. In square
1. 2 answers
2. asked by kristen
3. 1,796 views
what volume of nitrous oxide gas N2O has the same number of atoms as 9.0 liters of neon gas at the same temperature and pressure
1. 1 answer
2. asked by matt
3. 1,768 views
An auditor of Health Maintenance Services reports 40 percent of policyholders 55 years and older submit a claim during the year.
1. 2 answers
2. asked by kim
3. 1,730 views
P20-2AFor the year ended December 31, 2010, the job cost sheets of DeVoe Company contained the following data. Job Number
1. 1 answer
2. asked by Holly
3. 1,669 views
If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.
1. 1 answer
2. asked by Brandon
3. 1,511 views
Would it be better to use an unknown acid sample of a size that should require 10.00 milliliters or one that would require 15.00
1. 1 answer
2. asked by K
3. 1,498 views
For the set X={m,n.p,q,r,s}, let R be the relation on P(X) (power set) given by A R B iff A and B have the same number of
1. 1 answer
2. asked by Pat
3. 1,479 views
This is from a "effect of pH on the solubility of Ca(OH)2" lab: If excess Ca(NO3)2 were present, what effect would it have on
1. 1 answer
2. asked by redgy
3. 1,414 views
A 650g ball on the end of a light rod is rotated in a horizontal circle of 1.2m radius.Calculate the torque needed to keep the
1. 1 answer
2. asked by Mark
3. 1,372 views
At a certain location, the solar power per unit area reaching the Earth's surface is 180 W/m2 averaged over a 24-hour day.
1. 1 answer
2. asked by sarah
3. 1,366 views
When $1000 is deposit at 5% simple interest, the amount grows by $50 each year. When money is invested at 5% compound interest,
1. 3 answers
2. asked by James Starr
3. 1,321 views
in an experiment using Coulomb's apparatus, a sphere with a charge of 3.6 x 10^-8 C is 1.4 cm from a second sphere of unknown
1. 1 answer
2. asked by Sejul
3. 1,314 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
1. 1 answer
2. asked by ionic
3. 1,301 views
Which of the following steps will elicit a meaningful feedback from a passive person?A. confront the person. B. engage in a
1. 2 answers
2. asked by Nancy
3. 1,288 views
sample was obtained from a population with unknown parameters. scores: 6, 12, 0, 3, 4compute the sample mean and sandard
1. 1 answer
2. asked by T
3. 1,281 views
If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a decrease of four times?
1. 1 answer
2. asked by Mary
3. 1,225 views
With what minimum speed must you toss a 130 g ball straight up to hit the 12 m-high roof of the gymnasium if you release the
1. 3 answers
2. asked by Cam
3. 1,140 views
The number of pages in tony's book is the quotient of the number of pages in Monique's book and four, increased by one. if m
1. 1 answer
2. asked by mecca
3. 1,138 views
A 60 Kg skier leaves the end of a ski-jump ramp with a velocity of 24m/s directed 25° above the horizontal. Suppose that as a
1. 1 answer
2. asked by Anonymous
3. 1,099 views
7 (r+3s) - 2(2r -9s)I am having a hard time solving can anyone please help
1. 4 answers
2. asked by brooke
3. 1,081 views
I just want to get a better understanding of this. I need help badly.1. What mood does the dialect in “To a Mouse” and “To
1. 3 answers
2. asked by Jesicca
3. 1,066 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
1. 2 answers
2. asked by allen
3. 1,038 views
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300,
1. 0 answers
2. asked by Rachel
3. 1,036 views
A proton moves at 3.60 *10^5 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of
1. 0 answers
2. asked by Rachel
3. 1,029 views
A 5 Kg marble is fired vertically upward using a spring gun. The spring must be compressed 8.0cm if the marble is to just reach
1. 1 answer
2. asked by Anonymous
3. 954 views
help solving 4c divided by 2c minus 4 plus 2c divided by 4c minus 8
1. 0 answers
2. asked by Glenda
3. 944 views
If Sin2x=3sin2y then prove: 2tan(x-y)= tan(x+y)
1. 2 answers
2. asked by saroj
3. 940 views
Suppose that cell B2 contains the budgeted amount and cell C2 contains the actual amount. Write the formula (including the IF
1. 1 answer
2. asked by Anonymous
3. 934 views
The diagonal of a rectangle measures 26 cm the width of the rectangle is 24 cm find the length of the rectangle.
1. 1 answer
2. asked by Chelle
3. 931 views
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300,
1. 0 answers
2. asked by Rachel
3. 927 views
H2C2O4 * 2H2O (s) is a primary standard substance. 2.3688 grams of oxalic acid dihydrate were completely neutralized by 42.56
1. 2 answers
2. asked by Cassie
3. 924 views
I need help on what exactly to put on 10-12 slides on a pwoerpoint of anders celsius?? (for 2m)
1. 1 answer
2. asked by Tiara
3. 920 views
The beaker contains 0.3000 M HCl and the buret contains 0.3000 M NaOH.Write a complete balanced equation for the neutralization
1. 1 answer
2. asked by Kat
3. 911 views
Hello!Is it correct to say He watches sport on TV or he watches sports on TV. What is the difference?
1. 2 answers
2. asked by Mark
3. 895 views
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The
1. 0 answers
2. asked by Rachel
3. 880 views
N2(g) + O2 (g)= 2NO(g)if the temperature is constant and the pressure increases the number of miles of NO(g) will decrease,
1. 1 answer
2. asked by sashaa
3. 860 views
At a particular temperature, K = 3.75 for the following reaction.SO2(g) + NO2(g) <==> SO3(g) + NO(g)\ If all four gases had
1. 1 answer
2. asked by Amber
3. 857 views
How long will a radio wave, with a wave length of 200 m takes to travel to and for the moon from the earth? (Distance of moon
1. 1 answer
2. asked by yumina
3. 857 views
In a science fair experiment, 2 units are selected for testing from every 500 units produced. How many ways can these 2 units be
1. 1 answer
2. asked by Austin
3. 856 views
A block of mass 2kg slides down a plane having an inclination of ƒá=15.0„a . Ignore friction. The block starts from rest at
1. 2 answers
2. asked by hamed
3. 856 views
ms. p gave us a ? that was a right angle triangle & 1 side was "15ft" and the other side was"9ft".then she told us the answer
1. 2 answers
2. asked by ms. mysterious
3. 851 views
If a pro basketball player has a vertical leap of about 25 inches, what is his hang time? Use the hang-time function V=48T^I am
1. 1 answer
2. asked by tracie
3. 849 views
Why is it important to swirl the NaOH solution each time before using it during a titration?
1. 2 answers
2. asked by K
3. 815 views
MathMate attempted to help but did not show how the problem is answered. It only confused the problem. Could someone else please
1. 2 answers
2. asked by Dylan
3. 804 views
Find the speed at which Superman (mass=88.0 kg) must fly into a train (mass = 17998 kg) traveling at 60.0 km/hr to stop it.Runni
1. 0 answers
2. asked by Daniel
3. 770 views
Hello ...In 256PSK, how many bits will each symbol be able to represent? My answer is 8. is it correct? or could it be just ONE
1. 4 answers
2. asked by oo
3. 769 views
substance X has a molar mass of 107.6 g/mol. When 2.50 g of substance x burns in an iron calorimeter, the temp. of the
1. 0 answers
2. asked by carla
3. 766 views
A copper wire has a circular cross section with a radius of 3.75 mm.If the wire carries a current of 4.00 A, find the drift
1. 0 answers
2. asked by Rachel
3. 764 views
A copper wire has a circular cross section with a radius of 3.75 mm.If the wire carries a current of 4.00 A, find the drift
1. 1 answer
2. asked by Rachel
3. 760 views
A 27-kg boy stands 4 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 238 kg m2.
1. 1 answer
2. asked by Really stuck in this problem !!
3. 754 views
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The
1. 0 answers
2. asked by Rachel
3. 749 views
Anna’s net income is $40,000 per year. What is the most she should spend towards housing each year?
1. 1 answer
2. asked by LIssy
3. 741 views
I need to get the largest area of 100 feet of rope. I want to say rectangle: 40L x 40L x 10w x 10w =100Please advise if I am on
1. 3 answers
2. asked by Jeannie
3. 740 views
Write the equation of the curve in its final position: the graph of y = tan (x) is shifted by (pi/6) units to the right,
1. 1 answer
2. asked by chelsea
3. 736 views
Initially, mass one (2.10 kg) has a velocity of 5.90 m/s and mass two (2.80 kg) is at rest. After they collide, mass one emerges
1. 0 answers
2. asked by Mary
3. 735 views
Initially, mass one (2.10 kg) has a velocity of 5.90 m/s and mass two (2.80 kg) is at rest. After they collide, mass one emerges
1. 0 answers
2. asked by Mary
3. 728 views
Substance x has a molar mass of 107.6 g/mol. when 2.50 g of substance x burns in an iron calorimeter the temp. of calorimeter
1. 1 answer
2. asked by carla
3. 719 views
I need help with some rebus puzzles please.T H R O U G H The letters TRUH are in Bold color. E OV RRAT D E
1. 4 answers
2. asked by joe
3. 715 views
1.(a) Mary murdered the platypus (b) Mary killed something Select a maxim that is being flouted in this conversation. A.Quantity
1. 10 answers
2. asked by Marcella
3. 706 views
Calculate the pH after 0.10 mol of HCl is added to 1.00 L of the solution that is 0.57 M HF and 1.13 M KF.I got 3.01, but it is
1. 0 answers
2. asked by Mary
3. 702 views
A radioactive nucleus is at rest when it spontaneously decays by emitting an electron and neutrino (as shown in the figure below
1. 0 answers
2. asked by Tom
3. 702 views
how many moles of magnesium hydroxide are needed theoretically to neutralize 2.4 moles of hydrochloric acid?
1. 1 answer
2. asked by sarah phillips
3. 698 views
a bullet was fired at a target 50m away with a muzzle velocity of 300m/s. if the barrel of the gun was horizontal, how far below
1. 2 answers
2. asked by mike
3. 698 views
QuestionConsider the following sentences: (a) River Song is an archaeologist from the future. (b) River Song has a screwdriver.
1. 8 answers
2. asked by Marcella
3. 689 views
I would like to get a little feedback. I had to write an introduction paragraph of at least 250 words that includes a thesis
1. 3 answers
2. asked by Jim
3. 679 views
y = 3sec3xAmplitude =_________ Period = __________ Shift along x = ____________ Shift along y = _____________ Kind of reflection
1. 1 answer
2. asked by ryan
3. 677 views
Can you please check these last questions. Thank you very much!!1) What are the most dominant themes in Shakespeare’s Macbeth?
1. 1 answer
2. asked by Mike
3. 662 views
subtract and simplify if possible4-z - 8z-5 = z-2 2-z not sure if i got this typed right thank you for anyhelp you may give
1. 2 answers
2. asked by Traccy
3. 654 views
Can you please check these sentences for me? Thank you. I'm unsure about using phrasal verbs in a context.1) She is thinking of
1. 1 answer
2. asked by Mike
3. 649 views
The Problem:The spherical top holds a little over 54,000 gallons of water. The base of the top is 60 feet above the ground. The
1. 1 answer
2. asked by Zach
3. 648 views
If you finance $50,000 of the purchase of your new home at 4.40% compounded monthly for 30 years, the monthly payment will be
1. 1 answer
2. asked by Shannon
3. 648 views
briefly describe the evolution of movies, television, Internet, books and magazines, and media companies throughout the last
1. 1 answer
2. asked by Anonymous
3. 643 views
A chemist mixes 100ml of H2O at 30 degrees Celsius and 56.0g of CaOin a calorimeter.The following reaction occurs" CaO(s)
1. 1 answer
2. asked by Kim
3. 640 views
I don't even know what this means. Please helpFive cards are drawn in succession, without replacement, from a standard deck of
1. 1 answer
2. asked by kacee
3. 637 views
The ability of a forager to find food is often related to the ability of the forager to make decisions in the face of imperfect
1. 1 answer
2. asked by Mike
3. 625 views
Drwls - totally confused me on how this problem is done. Can someone else help to solve this problem?If two numbers are
1. 5 answers
2. asked by Brandon
3. 624 views
QuestionConsider the following sentences: (a) River Song is an archaelogist from the future. (b) The number 7 is even Based on
1. 3 answers
2. asked by Marcella
3. 616 views
i need help on my french test tomorrow... i have no idea what to study... please help me!!
1. 3 answers
2. asked by Brithni
3. 614 views
Calculate the pH of a solution prepared by mixing 10.00mL of 0.50M NaOH and 20.00mL of 0.50M benzoic acid solution. (Benzoic
1. 1 answer
2. asked by Christian
3. 610 views
A bar made of a particular metallic alloy has a length of 10 cm at a temperature of 24 oC and a length of 10.015 cm at the
1. 1 answer
2. asked by kelly
3. 609 views

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