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Kevin

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how much potential energy does Tim, with a mass of 62.0kg, gain when he climbs a gymnasium a distance of 3.8m?
1. 2 answers
2. 1,562 views
i'm a 2 digit number. the sum of my digit Is 12.my tens digit is 4 more than my ones digit. what numberam i ?
1. 1 answer
2. 380 views
Mrs. Jones owns 4/7 of the stock in a small business and Mrs.Brown owns the rest. Mrs. smith agrees to give $21,000 in exchange
1. 2 answers
2. 855 views
If (8c-7d)/(d)=2, find the value of (5c-6d)/(2c)
1. 1 answer
2. 362 views
Inventory as of Nov. 30th, 2010, consists of 20 bikes costing $550 each.Balance Sheet: Nov. 30th 2010. Cash-9150 Debit Accounts
1. 0 answers
2. 589 views
These are the 3 questions that will help me study for my test. i need help understanding each of these thankyou :)Distinguish
1. 0 answers
2. 436 views
In Professor White’s statistics course the correlation between the students’ total scores before the final examination and
1. 1 answer
2. 756 views
solve log(7x-3)+2log(5)=2+log(x+3)I've attempted to do this question and I ended up with log(7-3)+log(5^2)-log(x+3)=2 but I
1. 2 answers
2. 1,999 views
A spaceship from another planet travels at a speed of 4.27 googs/mulm. There are 256 googs in ameter and 8000 mulum in one hour.
1. 2 answers
2. 2,757 views
In a 100g sample of copper, 69 g were Cu-63 while 31g were Cu-65. Find the average atomic mass.
1. 1 answer
2. 421 views
(x-3) is a factor of x^3+ax^2+bx-3 but when divided by x+2 the remainder is 15Solve for A and B I know that A is 1 and B is -11,
1. 2 answers
2. 504 views
A 2.33-g sample of a mixture of CaCl2 and Ca(NO3)2 is treated with excess AgNO3(aq). The precipitate is filtered off, dried and
1. 1 answer
2. 1,451 views
I am diagramming the sentence: It was excellent from beginning to end. I know the subject is "It", verb "was", subject
1. 1 answer
2. 494 views
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13).I
1. 6 answers
2. 7,188 views
Which of the following best describes kinematics?a) Kinematics is a part of mechanics that involves the description of motion.
1. 1 answer
2. 2,213 views
What length of #22 B&S gauge copper wire is needed to make a resistance of 500 ohms?This is what I came up with but don't think
1. 0 answers
2. 705 views
Suppose you are asked to determine the perimeter of a seven-sided irregular figure. You make the following measurements:Side 1 =
1. 0 answers
2. 883 views
Suppose that an environmental study determines that a town produces approximately 2,000 lb of trash each day. The study group
1. 1 answer
2. 795 views
Can someone help me with this conversion question?Suppose you are told that 15 quarts (qt) = 14.2 liters (L). What is the
1. 1 answer
2. 984 views
If the side of am inverted square pyramid has a length of 75m, what is the lengths of a diagonal?
1. 1 answer
2. 420 views
When a 3.90-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops
1. 2 answers
2. 951 views
Journalizing liability transaction.The following transactions of denver pharmacies occurred during 2011 and 2012. Louis Welch is
1. 1 answer
2. 711 views
A block with mass 0.55 kg on a frictionless surface is attached to a spring with spring constant 43 N/m. The block is pulled
1. 1 answer
2. 1,089 views
how do u conver 334 (m/s) to acoustic independence unit? kg(m^2s)
1. 1 answer
2. 297 views
• A compound is known to contain only C, H, and N.• On combustion of a sample of 12.5 mg, 22.3 mg of CO2 and 15.2 mg of H2O
1. 1 answer
2. 863 views
calculate the mass of each product formed if 10.0 g of the first reactant is reacted with 10.0 g of the second reactant: NCl3 +
1. 1 answer
2. 479 views
Geosynchronous satellites orbit the Earth at an altitude of about 3.58×10^7 m. Given that the Earth's radius is 6.38×10^6 m
1. 1 answer
2. 627 views
A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the
1. 3 answers
2. 664 views
Bob received 6 points for each question he answered correctly on Part 1 of a test and 4 points for each question he answered
1. 1 answer
2. 761 views
The length of a rectangle is 15 m longer tan it's width. The perimeter of the rectangle is 74 cm. Find the length and width.
1. 3 answers
2. 1,451 views
Find S(sub 73) for the arithmetic series 4 + 7 +10....
1. 1 answer
2. 935 views
A ferry boat holds 800 people. There are 260 people already on the boat. The owner of the boat wants to load several tour groups
1. 0 answers
2. 1,100 views
About how fast will it be traveling on average? Assume that its trajectory is close to a straight line. Give your answer in {\rm
1. 1 answer
2. 961 views
The day after the internet went on strike, the Justice Department indicted 7 individuals and two companies who were a part of
1. 0 answers
2. 425 views
Would you expect PbCl2 to dissolve in dilute HNO3(aq)?Explain in terms of solubility (Ksp)/equilibrium?
1. 1 answer
2. 1,832 views
How much heat energy is given off when one kilogram of hydrogen gas at 25C and one atmosphere is combined with enough oxygen gas
1. 3 answers
2. 625 views
making lemonade requires water and lemon juice in the ratio of 3 cups of water to 2 cups of lemon juice. You need a total of 10
1. 3 answers
2. 1,839 views
Based on Bryan Caplan's book, The Myth of the Rational Voter:Offer your own opinion, and critical analysis, to Caplan’s
1. 0 answers
2. 430 views
Miss B. built a vegetable garden in her backyard. Her rectangular garden was 11m by 9m.Every morning she would notice carrots
1. 0 answers
2. 493 views
Miss B. built a vegetable garden in her backyard. Her rectangular garden was 11m by 9m.Every morning she would notice carrots
1. 1 answer
2. 517 views
How to Generate Pythagorean Triples using an Odd Number1. Start with an odd number, e.g. 3. Then the square of 3 can be
1. 1 answer
2. 615 views
1. Start with an odd number, e.g. 3. Then the square of 3 can be expressed as the sum of two consecutive numbers, i.e. 32 = 9 =
1. 1 answer
2. 540 views
If cosx=4/5, cosy=12/13 in Quad. IV, find sin(x+y)
1. 0 answers
2. 427 views
If cosx=4/5, cosy=12/13 in Quad. IV, find sin(x+y)
1. 3 answers
2. 845 views
A nickel pyramidal paper weight has a square base of sides 5 cm and a height of 3 cm. What is the mass of a dozen such paper
1. 2 answers
2. 1,763 views
7x over 5 = 42 over 3
1. 1 answer
2. 301 views
If a 45.3-g sample of potassium nitrate is dissolved in enough water to make 225 mL of solution, what will be the molarity?
1. 3 answers
2. 5,107 views
Use a spreadsheet to prepare a family of graphs for the titration of 50.0 mL of 0.020 M H2A with 0.100 M NaOH. Consider the
1. 1 answer
2. 988 views
The regular price is $20. The sale price is $20. What is the discount rate?
1. 3 answers
2. 1,152 views
using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the
1. 2 answers
2. 584 views
using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the
1. 0 answers
2. 479 views
Find all roots of P(x)= X^4 - 7/2 X^3 + 6x^2 -28x -16
1. 1 answer
2. 348 views
Waste gases containing CO2 from power stations are sometimes pumped through pools containing an aquatic green unicellular alga,
1. 1 answer
2. 508 views
A high school cheerleader has a baton that is 1 meter long with a 100 gram mass on each end. Another cheerleader has a baton
1. 0 answers
2. 906 views
Why do plants go on to manufacture energy-rich sugars when they already have ATP and NADPH for chemical energy from light
1. 0 answers
2. 463 views
(Re-post)Write the equilibrium constant expression, K, for each of the following reactions. Where appropriate, designate the K
1. 3 answers
2. 667 views
Write the equilibrium constant expression, K, for each of the following reactions. Where appropriate, designate the K as Ksp.2H2
1. 1 answer
2. 840 views
I have these sum and product property problems and I just want to make sure my work is right.Write equations expressing 1. cos
1. 1 answer
2. 561 views
I have these sum and product property problems and I just want to make sure my work is right.Write equations expressing 1. cos
1. 0 answers
2. 551 views
7.5+y<13
1. 1 answer
2. 330 views
7.5+y<13
1. 1 answer
2. 261 views
If a piece of wood is 5 cm longer than a second piece, and 3/4 of the second piece is equal to 3/5 of the first, what is the
1. 2 answers
2. 790 views
Calculate the solubility of AgCl in the following solution:100mL of .004 M CaCl2
1. 1 answer
2. 806 views
(Qualitative Analysis)I know this is vague, but if i had a solution of unknown cations that appear light purple, what could be
1. 1 answer
2. 496 views
Technology has been used for centuries to study the ocean. Trace the history of one piece of technology. What do you think is
1. 0 answers
2. 1,009 views
How does knowing 26=30 - 4 help you find 7+26?
1. 1 answer
2. 342 views
Is "sinecure" used correctly in this sentence:He studied hard throughout college to get a sinecure job.
1. 2 answers
2. 490 views
Is "impinge" used correctly in this sentence:Studying Latin every day impinged her grades in both Latin and English.
1. 1 answer
2. 1,240 views
Does this sentence use "Reverberate" correctly?:The sound of thunder kept reverberated in his head.
1. 3 answers
2. 456 views
Is anarchy used correctly in this sentence?: As so as the teacher step out of the class room to copys some paper the class was
1. 1 answer
2. 1,033 views
500x93x35+9999999999x99999999=
1. 1 answer
2. 284 views
(Re-posting because no one was answering chemistry questions)if you have 100mL of 0.1M acetic acid (ka = 1.8x10(-5)what is the
1. 1 answer
2. 444 views
if you have 100mL of 0.1M acetic acid (ka = 1.8x10(-5)what is the pH after 10mL NaOH is added? I came up with an answer of
1. 1 answer
2. 375 views
Ok, moving on from my last question, you have 100mL of 0.10M acetic acid with ka = 1.8x10(-5) and add 50mL (0.10M) NaOH.
1. 1 answer
2. 631 views
Calculate the pH of a 100mL solution of 0.10M acetic acid ka=1.8x10(-5)i calculated the pH to be 2.87 from the square root of
1. 1 answer
2. 668 views
so i had to calculate the pH of a 100ml solution of .10M acetic acid (ka=1.8x10(-5) I came out to 2.87. But then, they want the
1. 1 answer
2. 490 views
Consider a 0.80M solution of HCN. The Ka of HCN is 6.2x10-10. What are the major species in solution? Calculate the pH of this
1. 1 answer
2. 807 views
Consider a 0.80M solution of HCN. The Ka of HCN is 6.2x10-10. What are the major species in solution? Calculate the pH of this
1. 1 answer
2. 1,182 views
What happens to the hydroxide ion concentration in aqueous solutions when we increase the hydrogen ion concentration by adding
1. 1 answer
2. 947 views
So if i want to write the conjugate base for NH3,NH3 <--> NH2 + H(+)
1. 1 answer
2. 704 views
Doing some practice problems, these are a couple of my answers. Are these written correctly?Write the conjugate acid: a)HPO4(2-)
1. 1 answer
2. 479 views
explain how you could find a decimal equivalent to 9/20
1. 2 answers
2. 703 views
Can you please list so reason why the Reformation of the 16th century was a religious movement?
1. 1 answer
2. 481 views
The actual room has an area of 166ft2 and one of the sides, s, measures 13ft. Side s corresponds to side m of your model and m =
1. 1 answer
2. 464 views
Can you give three examples of bad print media advertisement? Can you give me the link for the bad advertisement?
1. 1 answer
2. 481 views
express u(t)=Tant/1+Tant in F of G
1. 1 answer
2. 1,012 views
A loan of face value $30,000,000 is issued in bonds each face value $300. The bonds will be repaid with a bonus of 20%.1/5th of
1. 0 answers
2. 777 views
1. Explain why you would use front end estimation. Gie an example of one time you might use it.2. Explain in words how to add
1. 1 answer
2. 608 views
1. explain why you would use front end estimation. Give an example of one time you might use it?2. Explain in words how to add
1. 1 answer
2. 646 views
Please HELP!what is the relative location of virginia? Thanks.
1. 1 answer
2. 275 views
Hi, I'm having trouble with a particular homework problem.A rifle has muzzle velocity 450 m/s. If you're 53.0 m from a target
1. 0 answers
2. 566 views
Hi, I'm having trouble with a particular homework problem.A rifle has muzzle velocity 450 m/s. If you're 53.0 m from a target
1. 0 answers
2. 487 views
Samuel has 1,482 baseball cards in his collecion. Maria gave Samuel 126 cards. How many cards does he have now? Explain what
1. 5 answers
2. 322 views
Use the definition of continuity and properties of limits to show that the function is continues at given a.f(x)=x^2+sqrt(7-x)
1. 0 answers
2. 449 views
If f(x)=2x-3 find yhe average gradient between x=-1 and x=-2
1. 0 answers
2. 402 views
Ok, so in my gen chem 1 class, the teacher showed us that ethanol would not dissolve a sugar cube while water dissolves a sugar
1. 1 answer
2. 550 views
Specifications for lactated Ringer's solution, which is used for intravenous (IV) injections, are as follows for each 100mL of
1. 1 answer
2. 1,185 views
Specifications for lactated Ringer's solution, which is used for intravenous (IV) injections, are as follows for each 100mL of
1. 0 answers
2. 763 views
A 54.0-cm diameter disk rotates with a constant angular acceleration of 2.0 rad/s2. It starts from rest at t = 0, and a line
1. 1 answer
2. 711 views
f(x)=1/(x+2)
1. 0 answers
2. 207 views

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