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Questions Asked on April 3, 2011

the velocity of the water jet discharging from the orifice can be obtained from v = (2gh)^(1/2), where h = 2m is the depth of
1. 2 answers
2. asked by -
3. 5,818 views
when ammonia is added to Zn(NO3)2 solution, a white precipitate forms, which dissolves on the addition of excess ammonia. But
1. 3 answers
2. asked by Ana
3. 5,686 views
Find the area of the region enclosed by one loop of the curve.r = sin(12θ)
1. 3 answers
2. asked by Beth
3. 3,963 views
"A solid cylinder and a thin-walled hollow cylinder have the same mass and radius. They are rolling horizontally along the
1. 2 answers
2. asked by Seth
3. 3,080 views
Nancy Company has budgeted sales of $300,000 with the following budgeted costs:Direct materials $60,000 Direct manufacturing
1. 1 answer
2. asked by eric
3. 3,037 views
When ammonium carbonate decomposes, what would happen to a glowing splint in the presence of the gases that are evolved. Explain
1. 1 answer
2. asked by jennifer
3. 3,005 views
write the constraints as linear inequalities and identify all variables used.A canoe requires 8 hours of fabrication and a
1. 1 answer
2. asked by ash
3. 2,863 views
A pair of emirps consists of two prime numbers such that reversing the digits of one number gives the other. How many pairs of
1. 1 answer
2. asked by Sara
3. 2,146 views
a 12 kg sled is pulled horizontally with a force of 82 N. the coefficent of the kentic friction of the sled is 0.42. draw a FBD
1. 2 answers
2. asked by OMar
3. 2,110 views
How many milliters of 1.80M HCl are required to react with 30.0 grams of calcium hydroxide according to the given equation:CA(OH
1. 1 answer
2. asked by Elaine
3. 2,058 views
Three students take equivalent stress tests. Which is the highest relative score?a. A score of 144 on a test with a mean of 128
1. 2 answers
2. asked by Charlie
3. 2,011 views
Find the equation of a quartic polynomial whose graph is symmetric about the y-axis and has local maxima at (−1,1) and (1,1)
1. 1 answer
2. asked by Cad
3. 1,954 views
An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into
1. 1 answer
2. asked by Jake
3. 1,891 views
calculate the OH- concentration in (a) 1.0M NH3 and (b) a solution that is 1.0M in NH3 and also 1.0M in NH4Cl. (Kb = 1.8 x 10^-5
1. 2 answers
2. asked by Ana
3. 1,878 views
A 1,000 kg car accelerates uniformly to double its speed from 13.5 ms in 5.77 s.What net force acted on this car?
1. 2 answers
2. asked by nofa
3. 1,872 views
"A 1220-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate
1. 1 answer
2. asked by Seth
3. 1,871 views
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams
1. 3 answers
2. asked by George
3. 1,869 views
The base of a solid is the region bounded by the parabola y^2=4x and the line x=2. Each plane section is perpendicular to the
1. 1 answer
2. asked by Amanda
3. 1,705 views
Water (density = 1.00 g/mL) will float on hexane (density = 0.95 mL).
1. 1 answer
2. asked by Anonymous
3. 1,658 views
Vinegar is a dilute solution of acetic acid. In the titration of 5.00 mL of vinegar, 39.75 mL of 0.137 M sodium hydroxide
1. 2 answers
2. asked by Mark
3. 1,635 views
"By means of a rope, whose mass is negligible, two blocks (mass: 11kg and 44 kg) are suspended over a pulley. The pulley can be
1. 0 answers
2. asked by Seth
3. 1,592 views
sandra wrote the sequence below2,5,10,17,... which equation represents the rule for finding the nth term of this equation
1. 2 answers
2. asked by jayla
3. 1,588 views
A self –employed person deposits $3,000 annually in a retirement account(called a Keogh account)that earns 8 percent.a) How
1. 1 answer
2. asked by Anonymous
3. 1,510 views
. Adam wants to compare the fractions2� 5 1 � 6 �, and 1� 3 .� He wants to order them from least to greatest and rewrite them so
1. 8 answers
2. asked by liz
3. 1,479 views
An investment offers to pay you a $10,000 a year for five years. If it costs $33,520, what will be your rate of return on the
1. 2 answers
2. asked by Anonymous
3. 1,391 views
if I add water to 100.0 mL of a 0.15 M NaOH solution until the final volume is 150.0 mL what will the molarity of the diluted
1. 1 answer
2. asked by carla
3. 1,390 views
The term 'human resources' refers to:(A)persons available for productive and professional services (B)raw materials used in the
1. 1 answer
2. asked by Sasha
3. 1,377 views
A 5-year annuity of ten $4500 semiannual payments will begin 9 years from now, with the first payment coming 9.5 years from now.
1. 2 answers
2. asked by Anonymous
3. 1,372 views
What pH is required to start precipitation of Fe(OH)3 from a 0.380 M solution of FeCl3? Ksp of Fe(OH)3 = 4.0e-29.
1. 1 answer
2. asked by Pob
3. 1,368 views
For the given reaction, how many moles of water will be formed starting with 45.0 moles of aluminum hydroxide:2AL(OH)3(s) + 3
1. 1 answer
2. asked by Elaine
3. 1,361 views
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams
1. 1 answer
2. asked by Craig
3. 1,349 views
How many milliters of 0.500 M magnesium nitrate can be produced from the reaction of 35.5 grams of magnesium bromide.
1. 1 answer
2. asked by Arlene
3. 1,304 views
Two tugboats are pulling a freighter. Find the net force and direction of the acceleration for the following cases. Assume that
1. 3 answers
2. asked by Emily
3. 1,301 views
suppose you are given the following experimentally observed facts regarding the reactions of silver ion.(a) Ag+ reacts w/ Cl- to
1. 4 answers
2. asked by Ana
3. 1,250 views
Three students take equivalent stress tests. Which is the highest relative score?a. A score of 144 on a test with a mean of 128
1. 2 answers
2. asked by Charlie
3. 1,246 views
identify one example of personification from dorothy aldis s poem snow and knikki giovannis poem the world is not a pleasant
1. 3 answers
2. asked by Ashley
3. 1,233 views
Find the x and y intercepts and graph 9x + 8y = 72. Graph the points.
1. 3 answers
2. asked by charmain
3. 1,231 views
A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on
1. 1 answer
2. asked by Sonia
3. 1,153 views
"A small 0.5 kg object moves on a frictionless horizontal table in a circular path of radius 1 meter. The angular speed is 6.28
1. 0 answers
2. asked by Seth
3. 1,149 views
how did europe's geography affect its development?
1. 6 answers
2. asked by Pamela
3. 1,146 views
If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert
1. 1 answer
2. asked by Mango
3. 1,127 views
What is the positive difference in the sums of the letters in the words MATH and COUNTS, if each letter is assigned a value as
1. 1 answer
2. asked by Sara
3. 1,120 views
A rectangle has a length 10 m less than twice its width. When 2 m are added to the width, the resulting figure is a sqaure with
1. 2 answers
2. asked by Anonymous
3. 1,120 views
Write each expression in problems 1 to 3 in the form a + bi.1. (8-3i)+(-6+2i) 2. 4/(2-i) 3. (3-2i)^3 I do not understand at all
1. 4 answers
2. asked by PreCal
3. 1,105 views
find the slope and the y-interceptf(x)=-10x-9
1. 2 answers
2. asked by bianca, pleeease help i'm lost
3. 1,103 views
resonance structures of ch3nco
1. 1 answer
2. asked by chamo
3. 1,095 views
A parent raises a child's allowance by 12% each year. If the allowance is $3.50 now, when will it reach $18?
1. 1 answer
2. asked by Beverly
3. 1,088 views
For the given reaction, how many moles of ammonia will result from 4.0 moles of nitrogenN2(g) + 3H2(g) > 2NH3(g)
1. 1 answer
2. asked by Elaine
3. 1,064 views
A 50.0 mL sample of 0.23 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, is titrated with 0.14 M KOH. Ka of CH3CH2COOH =
1. 1 answer
2. asked by George
3. 1,034 views
I am writing a paper on the movie "Smooth Talk" and the short story "Where are you going where have you been". I am going to be
1. 5 answers
2. asked by Hannah
3. 1,024 views
HOW MANY LITERS OF H2 must react to produce 75.0g of PH3
1. 1 answer
2. asked by jane
3. 993 views
Identify the two types of reactions:1. A+B--> Answer: Synthesis Reaction 2. A+BC-->AC+B Answer: Single Replacement or
1. 1 answer
2. asked by Cheryl
3. 990 views
How many grams are in 2.25 mole of NaBr?
1. 2 answers
2. asked by Connie
3. 987 views
You have a 1200 foot roll of fencing and a large field. You want to make two smaller fields by splitting a rectangular enclosure
1. 1 answer
2. asked by jill
3. 978 views
A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample
1. 1 answer
2. asked by Jane
3. 972 views
I left out two sentences. Thank you.1) I take the clothes out (and not: I take out the clothes?) 2) You mustn't speak during the
1. 1 answer
2. asked by Mike
3. 971 views
This is for a lab about determining the equilibrium constant.Given: 5.00mL of .203M Fe(NO3)3 mixed with 100mL of .00205M KSCN in
1. 1 answer
2. asked by Bob
3. 935 views
A 45-year-old woman decides to put funds into a retirement plan. She can save $2,000 a year and earn 9 percent on this savings.
1. 0 answers
2. asked by Anonymous
3. 934 views
Need to decide which form is needed:present participle, past, past participle of each verb in parentheses.1. Nora (see) the toy
1. 2 answers
2. asked by Ann
3. 905 views
In a mobile phone network, how many times as strong would a signal be expected to be at 200 m from a base station, compared with
1. 1 answer
2. asked by Subash
3. 905 views
The Ka values of H3PO4 are shown below.Ka1 7.5 multiplied by 10-3 Ka2 6.2 multiplied by 10-8 Ka3 4.8 multiplied by 10-13 What is
1. 2 answers
2. asked by George
3. 901 views
In the titration of a 0.101 M sodium hydroxide solution, 19.02 mL of 0.130 M sulfuric acid solution was required to neutralize
1. 2 answers
2. asked by Sarah
3. 890 views
What happens if you increase biodiversity? Decrease it?
1. 0 answers
2. asked by Ann
3. 880 views
Pourriez-vous me dire, s'il vous plait, quelle de ces phrases est correct?Je voudrais dire: "It has been two years since we were
1. 7 answers
2. asked by E.G.
3. 855 views
Two point charges, one of +3.00 10-5 C and the other -5.00 10-5 C are placed at adjacent corners of a square 1.400 m on a side.
1. 1 answer
2. asked by Terri
3. 850 views
NF2- has (2, 3, 4) regions of high electron density and (2, 4, 6) bonded electrons.
1. 2 answers
2. asked by Anonymous
3. 822 views
the perimeter of triangle ABC is 21 units. Give the perimeter of the triangle formed by its midsegments (connecting midpoints of
1. 2 answers
2. asked by sreve
3. 818 views
bill takes a loan of $8,000 at a 13% simple interet rate for 6 years. How much interest will he pay after 3 years?
1. 1 answer
2. asked by Cee Cee
3. 814 views
A mixture of aluminum and zinc metal is used in 2 experiments described below:A- A 1.7 gram sample of the mixture is reacted
1. 6 answers
2. asked by Kate
3. 814 views
I asked this earlier, but I didn't get an answer. I'm glad though, because I found a couple of typos. I can get someone to check
1. 2 answers
2. asked by Brittany
3. 791 views
You invest $1,000 in a certificate of deposit that matures after 10 years and pays 5 percent interest, which is compounded
1. 0 answers
2. asked by Anonymous
3. 791 views
Help!1. Describe the social strusture of feudal society. 2. what were the similarities and differences between feudalism in
1. 7 answers
2. asked by Pamela
3. 790 views
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb
1. 5 answers
2. asked by Cheril
3. 786 views
i have no clue how to paraphrase!!!paraphrase the quotation: the poets voice need not merel be the record of man it can be one
1. 2 answers
2. asked by Ashley
3. 774 views
A student reacts 20.0 grams of sodium hydroxide with hydrochloric acid and obtains 25.0 grams of sodium chloride. What is the
1. 2 answers
2. asked by Lisa
3. 763 views
Given the following information:Ag^+(aq) + Cl^-(aq)<-->AgCl(s) Keq=1.8x10^-1 Ag^+(aq) + 2NH3(aq)<->Ag(NH3)2^+(aq) Keq=8.2x10^3
1. 1 answer
2. asked by Gina
3. 755 views
A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the
1. 3 answers
2. asked by George
3. 733 views
Hi,Can someone please confirm the following for me .. This realtes to PSK or phase shift keying. Is it right that 8PSK uses
1. 2 answers
2. asked by Oddie
3. 724 views
If 0.752 g of pure sodium carbonate was dissolved in water and the solution titrated with 25.90 mL of hydrochloric acid to a
1. 2 answers
2. asked by Beth
3. 721 views
Suppose that you had a mercury-in-glass thermometer and calibrated to measure temperatures from -10 degrees C to 110 degrees C
1. 1 answer
2. asked by James
3. 712 views
Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least
1. 2 answers
2. asked by ibrahim
3. 696 views
at what altitude above the earth's surface is the free fall acceleration equal to three quarters of its value at the surface ?
1. 1 answer
2. asked by aliza
3. 694 views
Hello, I can't figure out the significance of the quote in Tale of Two Cities: "Drive him fast to his tomb". I know it signifies
1. 4 answers
2. asked by Martha
3. 690 views
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical
1. 0 answers
2. asked by Karku
3. 686 views
Donna must choose a number between and that is a multiple of , , and . Write all the numbers that she could choose. If there is
1. 1 answer
2. asked by john
3. 679 views
Left Wing:Support(sometimes radical) change; think that the government should provide more social services such as education and
1. 3 answers
2. asked by Lola
3. 678 views
what kind of solution does ax^2 -bx + c = 0 have if b^2 - 4ac < 0I think an ellipse.. is this correct?
1. 1 answer
2. asked by anonymous
3. 674 views
1. Identify the sentence that contains the correct form ( the contraction or the possessive word).a. As the saying goes, "Its
1. 1 answer
2. asked by Shauny
3. 671 views
I'm watching shark tank and they keep going on about royalty. They'll say something along the lines of:I'll give you 500k for
1. 3 answers
2. asked by Lena
3. 670 views
Consider the following electochemical cell.Pt | Fe3+ (0.0600 M), Fe2+ (6.50e-5 M) || Sn2+ (0.0620 M), Sn4+ (3.90e-4 M) | Pt (a)
1. 2 answers
2. asked by Logan
3. 668 views
when and where did Euclid write the proof of the pythagorean theorem. why did the proof was written.
1. 1 answer
2. asked by 000
3. 664 views
What are the nouns and verbs in this sentences.Trust in the Lord with all your heart. Do not depend own understanding.
1. 9 answers
2. asked by wendy
3. 663 views
Please confirm if I did the follow problems correctly:A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: =
1. 1 answer
2. asked by Jeannie
3. 657 views
I really need your help to rephrase the following lines taken from Owen's "Dulce et decorum est". I included a lot of question
1. 4 answers
2. asked by Mike
3. 645 views
In the design of a passenger bus, it is proposed to derive the motive powerfrom the energy stored in a flywheel. The flywheel,
1. 0 answers
2. asked by Vertrex
3. 643 views
Bonjour!Pourriez-vous me dire, s'il vous plait, quelle de ces phrases et correct? Je veux dire: " it has been two years since we
1. 0 answers
2. asked by E.G.
3. 640 views
A mixture of aluminum and zinc metal is used in 2 experiments described below:A- A 1.7 gram sample of the mixture is reacted
1. 1 answer
2. asked by Kate
3. 637 views
If 80.0 grams of methane were reacted with 368 grams of oxygen, how many grams of water would be formed (find limiter first).
1. 1 answer
2. asked by Lisa
3. 636 views
hi I was doing a study guide for a big test I'm having in my World History class and I was wondering if anyone can help me
1. 2 answers
2. asked by Amanda
3. 632 views
Adam colored two parts of a 4 × 4 grid. He colored1_ 2 of the squares red and 1_ 4 of the squares blue. How many of the squares
1. 3 answers
2. asked by liz
3. 620 views

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