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Questions Asked on November 15, 2009

In which orbital does an electron in a phosphorus atom experience the greatest effective nuclear charge?a. 1s b. 2s c. 2p d. 3s
1. 6 answers
2. asked by C.
3. 11,062 views
How many grams of H3PO4 are in 175 Ml of a 3.5 M solution of H3PO4?
1. 2 answers
2. asked by Denmark
3. 4,732 views
What is the gas pressure inside the box shown in the figure?I have a picture but website wouldn't allow me to post the link for
1. 8 answers
2. asked by ana
3. 4,227 views
A 30g ball rolls around a 40cm diameter L-shaped track at 60rpm. What is the magnitude of the net force that the track exerts on
1. 1 answer
2. asked by Elizabeth
3. 3,752 views
how many grams of ethylene would have to be burned to produce 450 kJ of heat?
1. 2 answers
2. asked by mandee
3. 3,692 views
Suppose that you can calculate the derivative of a function using the formula f'(x) = 4f(x) + 2x. If the output value of the
1. 1 answer
2. asked by rimmel
3. 3,454 views
Advertisers have been using the principles of classical conditioning for years in attempt to associate pleasant feelings with
1. 3 answers
2. asked by Hannah
3. 3,185 views
Initially a pool contains 350 gallons of water. A hose is placed in the pool, and the water is turnedon. The hose adds 4.8
1. 4 answers
2. asked by jeng
3. 2,976 views
a conical pendulum is formed by attaching a 500g ball to a 1m long string then allowing the mass to move in a horizontal circle
1. 1 answer
2. asked by jamieson
3. 2,943 views
Chlorine, Cl2, is a gas at room temperature, but bromine, Br2, is a liquid. Why?Chlorine would create a nonpolar covalent bond
1. 1 answer
2. asked by Mary
3. 2,464 views
Solve 3sin2x - 1 = 0Interval: [0, 2 pi] Solve 6cos^2x + 5cosx - 6 = 0
1. 1 answer
2. asked by -
3. 2,200 views
a small cork with a excess charge of +6.0 μC(1 μc = 10^-6 C) is placed 0.12 m from another cork, which carries a charge of
1. 3 answers
2. asked by abbigail
3. 1,986 views
Use linear approximation, i.e. the tangent line, to approximate 8.4^(1/3) as follows:Let f(x)= x^(1/3) . The equation of the
1. 2 answers
2. asked by Salman
3. 1,975 views
Risk exposure due to heavy short-term borrowing can be compensated for by:A. carrying more receivables to increase cash flow. B.
1. 1 answer
2. asked by maggie
3. 1,946 views
The Sweet Drip Beverage C. sells cans of soda pop in machines. It finds that sales average 26000 cans per month when the cans
1. 2 answers
2. asked by Cody
3. 1,838 views
8.00g of NaOH are dissolved in water to make 3.00 L of solution. What is the concentration of hydronium ions, , in this
1. 3 answers
2. asked by leo
3. 1,832 views
How many grams of sodium chloride are there in 55.00 Ml of a 1.90 M aqueous solution of sodium chloride? any idea.2. What is the
1. 1 answer
2. asked by Cool boy.
3. 1,787 views
A Physics book has a height of 26 cm, a width of 22 cm, and a thickness of 4 cm.Find the pressure that the Physics book exerts
1. 1 answer
2. asked by JL
3. 1,730 views
What is the relationship between the temperature, speed, and kinetic energy of gas molecules
1. 2 answers
2. asked by lynda smith
3. 1,681 views
Two fair dice are rolled together. The probability that the sum rolled is greater that 8 is?
1. 3 answers
2. asked by Anna
3. 1,667 views
A tin atom has 50 electrons. Electrons in which sublevel of this atom would experience the lowest effective nuclear charge?a. 1s
1. 3 answers
2. asked by C.
3. 1,475 views
Which of the following has the greatest entropy?A.1 mole NaCl (g) at 25C B.1 mole NaCl (g) at 50C C.1 mole NaCl (l) at 50C D.1
1. 1 answer
2. asked by Christina
3. 1,459 views
Barbara knows that she will need to buy a new car in 4 years. The car will cost $15,000 by then. How much should she invest now
1. 1 answer
2. asked by Nicole
3. 1,418 views
Consider an asteroid with a radius of 15.5 km and a mass of 3.46E+15 kg. Assume the asteroid is roughly spherical. What is the
1. 1 answer
2. asked by Hamp
3. 1,389 views
Explain the significance of the title Quality by John Galsworthy
1. 2 answers
2. asked by Kelly
3. 1,388 views
A 10g marble is spun so that it rolls at 150rpm around the inside of a steel tube. The tube has a 12cm diameter. Assume the
1. 1 answer
2. asked by Elizabeth
3. 1,380 views
I think I'm doing this wrongIn an internal combustion engine, air at atmospheric pressure and a temperature of about 20 degrees
1. 1 answer
2. asked by AP Physics B (chemistry bit)
3. 1,372 views
How can you use the sticky tape activity to find if an object has excess charge that can be transmitted to the computer and ruin
1. 2 answers
2. asked by Sarah
3. 1,352 views
I have to give a presentation for which i need to think of a business plan, work out its intricacies and plan its operations. I
1. 0 answers
2. asked by Salman
3. 1,310 views
I have to write a review of the short story The Rocking Horse Winner.Is this good? "A Boy With a Gift and Curse" By Jon Blank
1. 1 answer
2. asked by Anonymous
3. 1,306 views
I don't really get the question that my teacher told us to do for her class. The essay says to write a one page paper about a
1. 1 answer
2. asked by sam
3. 1,277 views
Analysis the double voice in Anne Bradstreet's poem....."The Prologe" "The Author to Her Book"
1. 3 answers
2. asked by Kelly
3. 1,272 views
I am writing a term paper and I have to use an example of a public policy designed to protect freedom of expression. I was
1. 2 answers
2. asked by Lyndse
3. 1,254 views
1) Rank the elements, aluminum, sodium and phosphorus, in order of decreasing conductivity.2) Rank the elements aluminum,
1. 1 answer
2. asked by Adam
3. 1,253 views
an exothermic reaction involvesa. breaking weak bonds to form weak bonds. b. breaking weaker bonds to form stronger bonds c.
1. 2 answers
2. asked by Christina
3. 1,173 views
Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.100000 cm thick
1. 1 answer
2. asked by rimmel
3. 1,093 views
Under the correct conditions, the element molybdenum emits X-rays with a characteristic wavelength of 0.711A (7.11*10^-11m).
1. 3 answers
2. asked by C.
3. 1,079 views
(a)Compute the value of G at a point in space that is 7.0X10^6 m from the center of the earth. What will be the value of G at a
1. 2 answers
2. asked by Juan
3. 1,079 views
how do i solve this equation?log3x+log3(x-24)=4
1. 1 answer
2. asked by alexa
3. 1,058 views
I need to write a paper about ethic in a health care facility. I need help writing a thesis to start my paper? How should I
1. 2 answers
2. asked by Brandy
3. 982 views
Is a water molecule more attracted to another water molecule or to a sodium ion? Explain.I would say that the water molecule is
1. 2 answers
2. asked by Mary
3. 970 views
I put a post earlier last nite. Did everyone miss it? :(
1. 6 answers
2. asked by Kuromi
3. 933 views
A recipe for strawberry punch calls for quart (qt) of ginger ale and qt of strawberry soda.a) How much liquid is needed? b) If
1. 2 answers
2. asked by lady bug
3. 923 views
I'm unsure how to even start this problem or how I'm suppose to find out the distance at which destructive interference would
1. 6 answers
2. asked by AP Physics B
3. 919 views
Write a proportion that is equivalent to the statement: If 3 gallons of gasoline cost $5.37, then 8 gallons will cost $14.32.
1. 1 answer
2. asked by Anonymous
3. 899 views
What value of p are2p-1,7 and 3P three consecutive terms of ARITHMETIC PROGRESSION
1. 2 answers
2. asked by THOMAS HARDY
3. 893 views
Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?
1. 1 answer
2. asked by Ana
3. 876 views
Evaluate the integral by interpreting it in terms of areas as 0 goes to 12 |2x - 7|dx?This is my work so far: 2x-7=0 x=7/2 slope
1. 3 answers
2. asked by Z32
3. 875 views
If one gross of golf tees weighs 118.80 grams, and a pack of golf tees weighs 412.50 g, how many golf tees are in the pack?I
1. 1 answer
2. asked by me
3. 867 views
Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent
1. 1 answer
2. asked by Hal
3. 829 views
The planet Mars has a satellite, Deimos, which travels in an orbit of radius 2.346×107 m with a period of 1.26 days. Calculate
1. 1 answer
2. asked by Rach S
3. 828 views
A typical Latino coffee farmer has fixed costs of $10,000 per year. Under the old distribution system, the farmer is paid $.40
1. 1 answer
2. asked by Val
3. 823 views
Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?
1. 3 answers
2. asked by ana
3. 806 views
logarithmic differentiation of find derivative of y= square root of x^x
1. 0 answers
2. asked by jackie
3. 795 views
Use the discriminant to determine how many real-number solutions the equation has.v2 - 7v + 5 = 0
1. 1 answer
2. asked by jeng
3. 786 views
Need help with this:The following ten countries are choices: Senegal Ghana Nigeria Congo the Central African Republic Zambia
1. 2 answers
2. asked by mysterychicken
3. 770 views
Help with marketing plan. I need help with the following for a marketing plan on an Cafe.1. Identify the most useful information
1. 0 answers
2. asked by Bryan
3. 769 views
I need some help on this essay question for my history class. I'm confused.There are three instances of the theory of the
1. 7 answers
2. asked by Josh
3. 763 views
The rate constant, k, for each reaction order is equal to _____ from the linear plot.Reaction Order Answer zero ______ first
1. 2 answers
2. asked by Yo
3. 760 views
A satillite is orbiting the earth at a distance of 1.00X10^3 km above the surface of the earth. What is it's speed?
1. 1 answer
2. asked by Juan
3. 753 views
True and False...1. A thermodynamically favorable reaction also proceeds spontaneously. I think that it is false? 2. Doubling
1. 1 answer
2. asked by Christina
3. 747 views
The ratio of the lengths of strings that play the notes F and G is 9 to 8. If a string 40 centimeters long plays a G, what is
1. 3 answers
2. asked by Tamika
3. 744 views
a) Write the ratio 5 to 9 as a fraction.b) Write the ratio of 3 nickels to 3 quarters in simplest form
1. 1 answer
2. asked by Anonymous
3. 735 views
Write the algebraic expression for:Eight more than a number
1. 1 answer
2. asked by tiffiny S
3. 731 views
Thanks so much your method worked perfectly!My solution was: the remaining zeros were 5+2i, 3, and -4 I have one question that's
1. 0 answers
2. asked by Zach
3. 724 views
A lot of pigs should be shipped to marken when their average weight is 220lb. If the pigs are too light, then fewer total pounds
1. 1 answer
2. asked by Statistics help!
3. 718 views
Can someone help me with this question?Was the Food and Drug Administration formed in response to a national event or some sort
1. 4 answers
2. asked by B.B.
3. 718 views
If a salesman is paid a $2,100 commission on the sale of a $35,000 sailboat, what is his commission rate?
1. 1 answer
2. asked by Anthony
3. 717 views
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when
1. 1 answer
2. asked by Sammeh
3. 689 views
6. Throughout East Asia, most of the labor force works ina. trade b. farming c. mining d. aquaculture B? 10. How was the Great
1. 4 answers
2. asked by mysterychicken
3. 682 views
A mine car (mass = 452 kg) rolls at a speed of 0.356 m/s on a horizontal track, as the drawing shows. A 179-kg chunk of coal has
1. 0 answers
2. asked by sarah
3. 681 views
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the
1. 4 answers
2. asked by ana
3. 680 views
Write the set {x|x<-1} in interval notation.What does it mean INTERVAL NOTATION?
1. 3 answers
2. asked by ggift
3. 679 views
A projectile is launched vertically from the surface of the Moon with an initial speed of 1130 m/s. At what altitude is the
1. 1 answer
2. asked by Emily
3. 679 views
How do observations of he sun's surface tell us about conditions in the solar interior?
1. 1 answer
2. asked by Taylor
3. 677 views
At what speed must a satellite of a mass M be launched horizontally at the surface of the earth if it's orbit is to be a circle
1. 1 answer
2. asked by Juan
3. 677 views
the equation y= 6 sin(3x-1)pi+4 has a fundamental period at
1. 2 answers
2. asked by Anonymous
3. 675 views
Hi can someone proofread my introduction to a 7 page essay regarding Gender roles and Disney movies?Gender Stereotypes Society
1. 0 answers
2. asked by Kuromi
3. 673 views
Use linear approximation, i.e. the tangent line, to approximate 8.4^(1/3) as follows:Let f(x)= x^(1/3) . The equation of the
1. 0 answers
2. asked by Ben
3. 669 views
The masses and coordinates of three spheres are as follows: 18 kg, x = 1.50 m, y = 1.50 m; 40 kg, x = -1.50 m, y = -1.50 m; 64
1. 1 answer
2. asked by Lizzy
3. 667 views
Hi! could you help this problem please try so many time but, the answer is not correct.Question:The tires on a new compact car
1. 1 answer
2. asked by Chan
3. 663 views
Susie, Sally, and Serena are roommates. Susie and Sally are neat freaks, but Serena is a slob. Both Susie and Sally want to use
1. 2 answers
2. asked by Hannah
3. 659 views
A 400kg sports car collides with a stopped pickup 40m/s. After the collision, the sports car stops and the pickup moves forward
1. 1 answer
2. asked by Jon
3. 642 views
I have to give a 3 minute presentation on any topic. Please give me some interesting ideas for a topic
1. 1 answer
2. asked by Salman
3. 641 views
A 400kg sports car collides with a stopped pickup 40m/s. After the collision, the sports car stops and the pickup moves forward
1. 1 answer
2. asked by Jon
3. 640 views
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the
1. 2 answers
2. asked by Ana
3. 628 views
In trisomy 21, most nondisjunction events take place during female meiosis rather than male meiosis. What might be one factor
1. 0 answers
2. asked by Alexa
3. 626 views
a) Write the ratio 5 to 9 as a fraction.b) Write the ratio of 3 nickels to 3 quarters in simplest form
1. 1 answer
2. asked by Anonymous
3. 624 views
Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull
1. 3 answers
2. asked by Kevin
3. 622 views
Hi! could you help this problem please try so many time but, the answer is not correct.Question:The tires on a new compact car
1. 2 answers
2. asked by Chan
3. 615 views
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when
1. 0 answers
2. asked by Sammeh
3. 612 views
Martha, the company receptionists, is told to be pleasant on the phone and represent her employer with an upbeat mood. Although
1. 2 answers
2. asked by cielo
3. 608 views
whats the biggest drawback of the need for large amounts of money to campaign?
1. 1 answer
2. asked by amy
3. 607 views
Find a way to convert Celsius to Fahrenheit on this temperture scale. water freezes at 32F 0Celsius. Boils at 212F and 100
1. 2 answers
2. asked by april
3. 606 views
With plural nouns sometimes you add an S, sometimes and es, sometimes ies, sometimes man, men.Is there a rule for this? do you
1. 4 answers
2. asked by Thai Jazmine
3. 600 views
In a period of 2s, 4.8E23 nitrogen molecules strike a wall area of 8.6 cm^2.If the molecules move at 308 m/s and strike the wall
1. 1 answer
2. asked by JL
3. 587 views
The double voice in Anne Bradstreets's poem.
1. 1 answer
2. asked by Kelly
3. 585 views
Einstein claims that his true average quiz score is 90. You have sample data on 25 of his quizzes. The average for that samaple
1. 0 answers
2. asked by Statistics help!
3. 582 views
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when
1. 0 answers
2. asked by Sammeh
3. 577 views
Determine whether the given numbers are solutions of the inequality.1, -17, -19, 3 y-10 > 2y-4 Is 1 a solution?-17?-19?-3???
1. 1 answer
2. asked by ggift
3. 575 views

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