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Questions (48)

In what sense could the1931 CV institution of Ethiopia be said a progressive document?
1. 1 answer
2. 91 views
The two main sources of opposition to the reforms of emperor Tewodros were black And black.
1. 1 answer
2. 122 views
The sum of the 3rd and the 7th term of an A P is 44,if the 9th term is 42 calculate the first term and the common differences
1. 1 answer
2. 110 views
What can be done to correct the quotation integration example below?In the story, Grandfather replies to the narrator with a
1. 1 answer
2. 132 views
Q=50-0.5 and tc = 50-40 q
1. 1 answer
2. 60 views
Q/ Find the parametric equations of the line joining the points P1( 1, 1, -1) and P2( 1, 2, 0)?
1. 3 answers
2. 1,528 views
Name ten branches of P H E
1. 1 answer
2. 273 views
How many grams of ethanol C2H5OH(1),must be added to 500.0 g of water to make a solution that freezes at0.00 F? The molal
1. 3 answers
2. 1,139 views
Pellets of sodium hydrogen Carbonate and anhydrous CuSO4 were put in petri-dishes and left in the open. What will be the
1. 1 answer
2. 270 views
If 3.21mol of a gas occupies 56.2L at 44C and 793torr ,5.29 mol of this gas occupies _______ L under these conditions.
1. 2 answers
2. 824 views
Construct a quadrilateral pqrs such that /pql=8cm,qps =105,angle pqs=30°,/pr/=9cm,/rs/=9cm,/RS/=/rq/Measure /rsl measure/ps/
1. 3 answers
2. 514 views
Way was olympia selected to hold at the ancient olympic game
1. 2 answers
2. 537 views
Which of the following play centers can be added to the block center?
1. 1 answer
2. 395 views
3y^2-5y+2=0
1. 3 answers
2. 371 views
1. Illustrate the wave forms for data “101001000111010011110100” by usingthe following modulation techniques: a. 2 bit AM +
1. 1 answer
2. 579 views
Michael Van Gough an attorney experienced in real estate transactions and his wife Kimberly were interested in buying certain
1. 3 answers
2. 658 views
Horizantal limit of (6x^3-8x^2-6x)/(3-11x-8x^3)
1. 1 answer
2. 368 views
(6x^3-8x^2-6x)/(3-11x-8x^3)
1. 3 answers
2. 369 views
A 543-N physics student stands on a bathroom scale in an 805-kg (including the student) elevator that is supported by a cable.
1. 3 answers
2. 839 views
You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down,
1. 4 answers
2. 3,993 views
find the rate of interest compound semi-annually at which birr 2000 will grow to birr 5000 in 9 years?
1. 1 answer
2. 488 views
If x+ay=b, then y equals
1. 4 answers
2. 1,613 views
Mg3N2(s) + 6H20 = Mg(OH)2(s) + 2NH3(g)When 2 moles of H20 react How many grams of NH3 are produced ?
1. 2 answers
2. 1,320 views
2^(x+2)-2^(x)=24??
1. 1 answer
2. 274 views
the problem says:Water flows from a bathtub through a 2.5 diameter plastic pipe to a large air-filled drain...etc Here, i need
1. 2 answers
2. 576 views
I have a question in fluid mechanics...and i need to know the pressure in an air-filled drain? Is it the atmospheric pressure?Th
1. 1 answer
2. 478 views
Ho, ho! That was a good joke.Good heavens! You won the first price. Oh dear! You should not done that Bravo! You have won the
1. 2 answers
2. 548 views
how much energy is needed to change 53 grams of water from -53 degrees celsius to 160 degrees celsius ?
1. 2 answers
2. 620 views
If you try hard enough, you will surely succeed.
1. 2 answers
2. 557 views
Is this sentence is correct?He wanted to polish his shoes, for it were covered with mud. or else replace it with they.
1. 1 answer
2. 382 views
soybean mean is 16% protein and corn mean is 9% protein. how many pounds of each should be mixed to get a 350 pound mixture that
1. 1 answer
2. 464 views
Choose the following words to combine these sentence.words: after and till because as but for if when since so though unless
1. 4 answers
2. 1,894 views
Fill in the blanks with the chosen words.words: after and till because as but for if when since so though unless until while or
1. 6 answers
2. 910 views
Two flip-flops are connected as shown below. The delay represents wiring delay between the two clock inputs, which results in
1. 1 answer
2. 702 views
Jane and Bob are on the same game show. They answer one question, either True or False. The probability that Bob is correct is
1. 1 answer
2. 1,197 views
A woman weighing 500 N stands in an elevator that is traveling upward. At a given instant the speed of the elevator as well as
1. 3 answers
2. 2,322 views
1. An aqueous solution contains 0.154 M ascorbic acid (H2C6H6O6) and 0.196 M hydrobromic acid. Calculate the ascorbate
1. 3 answers
2. 1,774 views
What volume of hydrogen sulfide is required to produce 161 liters of sulfur dioxide according to the following reaction? (All
1. 2 answers
2. 693 views
How many moles of hydrogen gas are required to react completely with 807 L of ethylene (C2H4) according to the following
1. 2 answers
2. 727 views
What volume of carbon dioxide is produced when 0.979 mol of calcium carbonate reacts completely according to the following
1. 6 answers
2. 874 views
What is the pH of 1.0M Na2SO3 (aq)solution at 25C?a) 3.40 b) 6.03 c) 10.60 d) 7.96 e) 10.40 How can I get ph from only the
1. 4 answers
2. 2,463 views
What is the equilibrium constant for the reaction of ammonium ion with formate ion?I know that the ionization constant for
1. 1 answer
2. 444 views
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ
1. 4 answers
2. 2,045 views
A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must bea) rate = k
1. 1 answer
2. 458 views
The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the
1. 2 answers
2. 723 views
A particular reaction has an activation energy of 51.6 kJ/mol-rxn. How much faster is the reaction at 50 oC versus 25 oC?a. 2
1. 3 answers
2. 540 views
What is the derivative of x - 4/x square.Just the denominator is squared.
1. 3 answers
2. 395 views
Why is zinc used to coat Iron and not the other way around?Why is Iron not recommended in construction of steam pipes?
1. 1 answer
2. 500 views

Answers (43)

Solve it
Knowledge
Waiting
what is the importance of using the McFarland standard?
Answer
To help me
This the best website i ever came across
good
Helping my children
Thanks a lot for given me all my reguested answers
How we do it?
Motion That Boys Should Not Help In The Kitchen
Reason Why Boys Should Not Help In The Kitchen
Of course, 4,000 :)
The correct ans. is (c)
kills
352.4285714286
please send me answer
P8 -3A
What volume (in liters) would the gas occupy at a pressure of 1.20 atm if its temperature remained unchanged?
Not correct but thanks anyway
I don't get any pic sorry I didn't
Actually this is an interesting topic since it requires looking at the geographic extent of the Arabic language before and after the spread of Islam. Although not every Muslim speaks Arabic today, the geographic extent of the Arabic language being spoken
R=sqrt(3^2 + 4^2) =sqrt(9+16) =sqrt(25) =5 N. the two vertical and horizontal forces are basically components of the resultant. Good luck in your studies!
(-30,20)
3/8
They have not given the blanks
1) Because 2) For 3) As 4) Till 5) when 6) but 7) So 8) But 9) If 10) While Correct the mistakes and re-post it.
PMT= $2363.1
Don't you have to divide moles of calcium carbonate by 2 to get moles of carbon dioxide? and then multiply by 0.0821 and 273 and then divide by 1?
is 10.97 L correct?
B for the second question
So based of the rule of thumb, its going to be 5 times faster. Also how can I use Arrhenius equation without the rate constant (k)?
Okay first lets figure out the equation P+H2---->PH3 balance it now we have: 2P + 3H2 --->2PH3 equation is now balanced. let us now find the reactant in excess 2 moles of P= 3 moles of H2 2(31)g of P = 3(2)g of H2 6.2 g of P= x x= 6.2x6/62= 0.6 g of H2 4
pH = -log(concentration) pH of HClO4= -log(5.8x 10^-2 M) use a calculator and figure it out do the same for the second.
Wait I think I got it The equation can be written as x-4x^-2 so d/dx(x)=1 and d/dx(-4x^-2)= -2(-4)(x^-2-1) which is 8x^-3 d/dx(x-4/x^2)= 1+8x^-3 correct?
Its A The set S has 4 elements which are f h m and r
There are to points : (42,20) , (52,10) m=(20-10)/(42-52)= -1 => m=-1 choose any point from the two points . (42,20)=(x1,p1) p-p1=m(x-x1) => p-20=-1(x-42) p=-x+42+20 => p=-x+62
(8.66 10^-9 m )x( 1mm / 10^-3 m ) =(8.66 10^-9 )x( 1mm / 10^-3 ) = 8.66 x 10^-6 mm
thanks for note Reiny .
1) cscθ = (-5/3) , θ is in third quadrant 1/sinθ = (-5/3) => sinθ= -3/5 θ= -36.8699 θ is in third quadrant so θ = 36.8669+180 = 216.8669 tan2θ = tan2(216.8669) = 3.42724 = 24/7 answer : c
1) cosθ=0.8 , θ is in fourth quadrant θ= cos^(-1)0.8=36.86989765 + 270=306.87 so , sin 2θ= sin2(306.87)= -0.96 answer : a
integral of(1/3)tan(3x)dx = (1/3)integral of(sin3x/cos 3x) dx = (1/3)ln|sin 3x| + C then the final answer is (x tan3x)/3 - (1/3)ln|sin 3x| + C

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