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Questions Asked on February 7, 2015

A constant force is exerted for a short time interval on a cart that is initially at rest on an air track. This force gives the
1. 3 answers
2. asked by Kim
3. 8,080 views
To determine the acceleration of an object moving in a straight line, you must calculate the change in its stored during each
1. 26 answers
2. asked by Callie
3. 5,423 views
lim x→−12 sqrt(x^2 +25 −13)/x+12
1. 2 answers
2. asked by TayB
3. 4,567 views
Find the magnitude of the sum of two forces, one 24 N and the other 9 N, when the angle between them is 60.0o.
1. 1 answer
2. asked by Alex
3. 3,348 views
The term “Ka for the ammonium ion” describesthe equilibrium constant for which of the following reactions? 1. NH3 + H2O
1. 2 answers
2. asked by Anonymous
3. 3,330 views
A river flows at a speed of 4.60 m/s. A boat, capable of moving with a speed of 5.80 m/s in still water is rowed across the
1. 1 answer
2. asked by Alex
3. 2,864 views
Mary wants to hang a mirror in her room. The mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and
1. 6 answers
2. asked by Alan
3. 2,794 views
1.What is the genetic code? (1 point)The order of amino acids in proteins makes up the genetic code. The order of amino acids in
1. 9 answers
2. asked by Ruby :)
3. 2,644 views
Explain why it is possible to draw more than two different rectangles with an area of 36 square units, but it is not possible to
1. 4 answers
2. asked by Kyle
3. 2,440 views
A 15 m flagpole stands on level ground. from point P, due west of the flagpole the angle of elevation of the top of the pole is
1. 1 answer
2. asked by Chessy
3. 2,385 views
Benzoic acid reacts with water to form thebenzoate ion by the following reaction C6H5COOH(aq) + H2O(l) ⇀↽ C6H5COO−(aq) +
1. 1 answer
2. asked by Anonymous
3. 2,180 views
A cylinder of radius 14 cm contains water. A metal solid cone of base radius 7 cm and height 18cm is submerged into the water.
1. 4 answers
2. asked by kudu
3. 2,161 views
Which of the following has the HIGHESTpKa? 1. HClO3 2. HBrO 3. HClO 4. HIO 5. HClO4
1. 2 answers
2. asked by Anonymous
3. 2,050 views
An athlete runs 2.76 km east, then turns south and runs another 0.85 km. What is the magnitude of his displacement?
1. 1 answer
2. asked by Alex
3. 1,846 views
Which of the following is the STRONGESTacid? 1. CH3COOH 2. CH3CH2OH 3. CHCl2COOH 4. CH2ClCOOH 5. CCl3COOH
1. 1 answer
2. asked by Anonymous
3. 1,773 views
2. Create a visual representation of ionic substances to connect the microscopic structure of ionic substances to each of the
1. 7 answers
2. asked by Morgan
3. 1,732 views
A boy standing in a ditch throws a baseball upward toward his father. The ball leaves his hand at ground level, with an initial
1. 1 answer
2. asked by Nelson
3. 1,686 views
Assume diameter of a neutral helium atom is 1.40x10^2pm. Suppose that we could line up helium atoms side by side in contact with
1. 2 answers
2. asked by Mariah
3. 1,595 views
1.Quadrilateral GHJK has vertices at the following coordinates: G(-2,-6), H(-8,-8), J(-6,-2), and K(0,0), what would be the new
1. 3 answers
2. asked by Daisy
3. 1,502 views
Teri finds a pile of money with at least $600. If she puts $200 of the pile in her left pocket, gives away 4/5 of the rest of
1. 2 answers
2. asked by Jason
3. 1,480 views
Given a and b unit vectorsif |a+b|=square root 3, determine (2a-5b)dot(b+3a) First I foiled the whole thing: =2(a dot b)+ 6 (a
1. 0 answers
2. asked by MathHelp
3. 1,387 views
Every sack of sugar has the same weight. Every sack of flour has the same weight, but not necessarily the same as the weight of
1. 1 answer
2. asked by Amber
3. 1,294 views
What would be pH of a 0.01 M solution ofa very expensive weak base, unobtainamine, whose pKb is 3.8? 1. 2.9 2. 14 3. 2 4. 7 5.
1. 1 answer
2. asked by Anonymous
3. 1,282 views
The blocks A and B are connected by a piece of spring. Block B rests on a smooth inclined plane of 35° and block A hangs
1. 2 answers
2. asked by Alex
3. 1,243 views
After the volatile liquid has been added to the Erlenmeyer flask, the total pressure in the flask equals the vapor pressure of
1. 4 answers
2. asked by Anonymous
3. 1,221 views
An artist makes three types of ceramic statues (large, medium, and small) at a monthly cost of $820 for 180 statues. The
1. 1 answer
2. asked by suzz
3. 1,194 views
Arrange the acidsI) hydrogen selenate ion (HSeO− 4 ), pKa = 1.92; II) phosphorous acid (H3PO3), pKa1 = 2.00; III) phosphoric
1. 1 answer
2. asked by Anonymous
3. 1,160 views
a solution made by dissolving 2.733g KH2PO4 and 4.508g K2HPO4 in water to give 250 ml of solution.is the answer... 7.432= ph
1. 5 answers
2. asked by yes
3. 1,143 views
A bowling ball of mass 3.5 kg moves in astraight line at 4.48 m/s. How fast must a Ping-Pong ball of mass 3.456 g move in a
1. 1 answer
2. asked by Jack
3. 1,141 views
A box contains 10 red balls and 20 blue balls. Three balls are selected at random one after the other from the box, without
1. 1 answer
2. asked by larry
3. 1,075 views
a 4-m plank rests against a wall 1.8m high so that 1.2m of it projects beyond the wall. find the angle the plank makes with
1. 0 answers
2. asked by clarissa
3. 1,058 views
If a is not equal to 0, and a =2b=3c, what is the value of a+b in terms of c?Would I make up numbers for the variables?
1. 1 answer
2. asked by Student
3. 1,053 views
A tetrahedral site in a close-packed lattice is formed by four spheres at the corners of a regular tetrahedron. This is
1. 2 answers
2. asked by Mike
3. 1,039 views
The blocks A and B are connected by a piece of spring. Block B rests on an inclined plane of 40° and block A hangs vertically.
1. 0 answers
2. asked by Alex
3. 1,035 views
Applying the interest allowance method, compute Julie's and Jennifer's share of net income if Julie invested $40,000.and
1. 1 answer
2. asked by Kathy
3. 1,026 views
There are two sign posts A and B on the edge of the road. A is 400 m to the west of b. A tree is on a bearing of 60 degree from
1. 2 answers
2. asked by John
3. 1,014 views
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 27.3 m/s to
1. 1 answer
2. asked by Kaleem
3. 1,010 views
A vector has magnitude 58.0 units and is inclined to the positive axis of x at 42.0°. Vector has magnitude 36.0 units and is
1. 0 answers
2. asked by Alex
3. 991 views
A soccer player kicks the ball toward a goal that is 23.0 m in front of him. The ball leaves his foot at a speed of 17.6 m/s and
1. 1 answer
2. asked by Cece
3. 984 views
A fruitier bought 144 pineapples at $10 for every six pineapples. Sh sold some of them at $12 for every three and the rest at $6
1. 2 answers
2. asked by kudu
3. 932 views
Analyze/Annotate the promptIn the following passage from The Scarlet Letter, the narrator describes Hester Prynne in her
1. 1 answer
2. asked by Amy
3. 910 views
Can someone please help me solve this problem?If the probability of a baseball player's getting it in one time at bat is 0.326,
1. 1 answer
2. asked by Anonymous
3. 907 views
2. Create a visual representation of ionic substances to connect the microscopic structure of ionic substances to each of the
1. 0 answers
2. asked by Morgan
3. 897 views
Question:Find (3a+b)dot(2b-4a) if a=-i-3j+k and b=2i+4j-5k I did: =3(-1,-3,1)+(2,4,-5)dot 2(2,4,-5)-4(-1,-3,1)
1. 2 answers
2. asked by annonymous
3. 870 views
In a game, you draw a card with three consecutive numbers on it. You can choose one of the numbers and find the sum of its prime
1. 3 answers
2. asked by Kyle
3. 863 views
A 45.0 g ball of copper has a net charge of 2.3 µC. What fraction of the copper's electrons have been removed? (Each copper
1. 0 answers
2. asked by Katelyn
3. 841 views
On January 1, 2012, the organizers of the Parsons Corporation obtained their charter and issued 10,000 shares of $1 par common
1. 0 answers
2. asked by james
3. 838 views
Determining and naming the unique isomers of a hydrocarbon? Please help!?Hey all. I am studying a petroleum fluids class and am
1. 3 answers
2. asked by Joe
3. 820 views
What is the conjugate acid of O2^-2
1. 1 answer
2. asked by Anonymous
3. 808 views
How does the Israeli-Palestinian conflict most directly affect the daily lives of young people in Jerusalema. civilian violence
1. 3 answers
2. asked by Check Answer
3. 794 views
Once you acquire these two basic skills, you'll be able to transform a vague idea in your mind into a coherent piece of writing.
1. 1 answer
2. asked by Anonymous
3. 789 views
Here are some half-lives for different isotopes of bismuth (Bi):Bi-211 — 2.1 minutes Bi-212 — 60.6 minutes Bi-213 — 45.7
1. 4 answers
2. asked by jen
3. 782 views
What should be the angle between two vectors of magnitudes 4.10 and 4.40 units, so that their resultant has a magnitude of 3.90
1. 1 answer
2. asked by Alex
3. 778 views
In a game, you draw a card with three consecutive numbers on it. You can choose one of the numbers and find the sum of its prime
1. 4 answers
2. asked by kymy
3. 774 views
Identify and discuss two factors that have revolutionised world history
1. 2 answers
2. asked by comeford
3. 755 views
Which of the following reactions will be spontaneous at standard state? Not all the reactions are balanced, so make sure they
1. 1 answer
2. asked by danny
3. 745 views
A soluction of 100 mL of 0.2 M NH3 is titratedwith 50 mL of 0.5 M HNO3. What is thepH of the resulting solution? Kb for NH3 is
1. 1 answer
2. asked by Anonymous
3. 740 views
Could this be a good thesis? Could you please help me? In today's society many middle class people argue why they can not build
1. 4 answers
2. asked by antonio
3. 722 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 0 answers
2. asked by Morgan
3. 715 views
Which of the following processes is entropy increasing in the local system? You may select multiple processes.Combination
1. 1 answer
2. asked by danny
3. 713 views
ΔS is positive for which one of the following reactions?Ag+(aq) + Cl- (aq) = AgCl(s) N2(g) + 3H2(g) = 2NH3(g) CaO(s) + CO2(g) =
1. 1 answer
2. asked by danny
3. 709 views
Ms. Sue Can You Help Me Answer This Question?During the early 1800s, the United States tried to make peace with other countries
1. 10 answers
2. asked by Lisa
3. 705 views
Please excuse me for this, I know it's not well done but please look it over. ThanksHola Amigo, Tú son invitado a una dia
1. 3 answers
2. asked by Tony
3. 672 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 1 answer
2. asked by Morgan
3. 668 views
Use rationalization to simplify the given expression in part (a). Then find the indicated limit in part (b).(a.) 3y2/(the square
1. 4 answers
2. asked by mj jad
3. 655 views
Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.*
1. 2 answers
2. asked by slomo
3. 650 views
If sin x = -12/13 and tan x is positive, find the values of cos x and tan x.
1. 1 answer
2. asked by Porsha
3. 649 views
You need to give 6mg of a drug, The drug on hand has a concentration of 24mg per ounce. How many teaspoons will you give?
1. 2 answers
2. asked by Anonymous
3. 648 views
The a hollow cylinder. The internal and external radii are estimated to be 6 cm and 8 cm respectively, to the nearest whole
1. 1 answer
2. asked by kudu
3. 630 views
A coin is tossed 3 times. Find the probability that all the 3 are heads(A) if it is known that the first is heads (B) if it is
1. 0 answers
2. asked by Joseph
3. 626 views
A coin is tossed 3 times. Find the probability that all the 3 are heads(A) if it is known that the first is heads (B) if it is
1. 0 answers
2. asked by Joseph
3. 623 views
The World Almanac is a book ofA. facts and statistics. B. living notable Americans. C. synonyms. D. articles published in
1. 1 answer
2. asked by Anonymous
3. 610 views
The company needs at least $300,000 fire and theft insurance and at least $4,200,000 and liability for the from these plans. How
1. 0 answers
2. asked by Matt
3. 600 views
An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18.0 m/s northward and the air speed of the
1. 0 answers
2. asked by Alex
3. 599 views
California's volcanoes formed as the result of what type of plate boundary?
1. 1 answer
2. asked by Claire
3. 593 views
If I put $300 in an account that earns 5.5%, how much will there be in the account at the end of 21 years?
1. 1 answer
2. asked by SYLVIA
3. 591 views
A particle of charge +18.5C and mass 4.84 × 10-5 kg is released from rest in a region where there is a constant electric field
1. 0 answers
2. asked by Salah
3. 589 views
I am doing a essay, and I need help to start me off on this. Please help me. Give me examples, ideas anything. This what I doing
1. 4 answers
2. asked by jimmy
3. 586 views
How many times as great as 15^9 is 15^10 ?
1. 10 answers
2. asked by kai
3. 582 views
Hi! I need help with this practice problem. My teacher gave us the answer, "2cot u" BUT she wants us to figure out why that's
1. 1 answer
2. asked by Richard
3. 569 views
Simplify this expressionsqrt(3y^3)*sqrt(4xy^4)*sqrt(6x^5y^2) Please show work!!!
1. 1 answer
2. asked by Alex
3. 568 views
The Brush Company issued 4,000 shares of common stock worth $200,000.00 total. What is the par value of each share?
1. 0 answers
2. asked by Marlene
3. 564 views
a monster truck's is 8 ft in diameter. during the last event, the tire rolled for 3 miles. how many revolutions did the tire
1. 1 answer
2. asked by zoey
3. 551 views
Thanks for answering miss sue.Has also world war revolutionised world history?
1. 1 answer
2. asked by comeford
3. 550 views
Can someone help me answer this question, so I would know what to do for a question like this next time?Thank you! A box
1. 0 answers
2. asked by Anonymous
3. 537 views
A football punter accelerates a 0.59 kg football from rest to a speed of 8.4 m/s in 0.17s.What constant force does the punter
1. 1 answer
2. asked by Jen
3. 534 views
2 4/15 minus 10/15 equals
1. 6 answers
2. asked by amari
3. 531 views
e) A fair coin is tossed 6 times. What is the probability of getting exactly 2 heads? What is the mean of this experiment?
1. 0 answers
2. asked by Charles
3. 529 views
I need help with fixing this sentence. "After boarding Hard Luck Airlines, the meals convinced us to return by ship."
1. 1 answer
2. asked by Shea
3. 527 views
Alice wants to find all the price factors of the number you get when you multiply 17x11x13x7. She thinks she has to use a
1. 1 answer
2. asked by Kyle
3. 527 views
I am doing a course project. I am having some issue on this part. Politician System Subsistence Bands.This is what I came up
1. 4 answers
2. asked by jimmy
3. 526 views
How do I know if a paragraph lacks transitional words? Or if the paragraph contains a fragment and a run-on?
1. 1 answer
2. asked by dani
3. 523 views
A mass of 0.3 kg is attached to the end of a massless spring of spring constant 0.25 N/m. It is released from rest (t=0). After
1. 0 answers
2. asked by anon
3. 521 views
An aircraft is at A and has to drop a bomb on target B. If the aircraft flies at 720km/h at a height of 2km, calculate how ahead
1. 1 answer
2. asked by EmpressPamela
3. 516 views
The textbook answer is -80Question: find (3a+4b)(2b+4a) if a= -i-3j+k and b=2i+4j-5k What I did: =6(a)(b) - 12|a|^2 + 2|b|^2 -
1. 1 answer
2. asked by Help-me-Please
3. 509 views
Simplify each expression.1+sqrt(3) ______________ sqrt(3)-sqrt(2) *this is a division radical expression please show work!!
1. 1 answer
2. asked by Alex
3. 502 views
Subtracting,division and multiplication of fractions A. 16p^2-4q^2/(6p^2-7pq+2q^2) *6p^2-13pq+6q^2/(4p^2-4pq-3q^2) B.
1. 1 answer
2. asked by Lesley
3. 480 views
packing a suitcase with 3 different color sweatshirts only have room for 2 sweatshirts in the suitcase how many different
1. 1 answer
2. asked by Anonymous
3. 474 views
How much is needed to melt an ice cube, 3 centimeters on each side at 0 degree celcius?
1. 1 answer
2. asked by Glaiza
3. 472 views
Which of these are NOT a trigonometric identity?A.) 1-cos^2x=sin^2x B.) sin^2x+1=cos^2x C.) 1+cot^2x=csc^2x D.) sec^2x-1=tan^2x
1. 1 answer
2. asked by Alanie
3. 472 views

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