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Questions Asked on November 20, 2010

Three vectors, A, B, C have the following x and y components: Ax = 6.7, Ay= -2.3; Bx = -5.5, By = 4.5; Cx = 3.2, Cy = 7.2.What
1. 2 answers
2. asked by Isabell
3. 5,570 views
A chemist wants to make 5.5 L of a 0.250 M CaCl2 solution, what mass of CaCl2 (in g) should the chemist use?
1. 3 answers
2. asked by Lisa
3. 4,625 views
calculate the molarity of each of the following solutions. Help!!(a) 0.36 mol of LiNO3 L of solution (b) 70.7 g C2H6O in 2.25 L
1. 2 answers
2. asked by Stacy
3. 4,036 views
An artisan can sell 120 garden ornaments per week at $4 per ornament. For each $0.50 decrease in price, he can sell 20 more
1. 1 answer
2. asked by Gianluca
3. 3,918 views
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a
1. 6 answers
2. asked by JU
3. 3,665 views
Suppose that a 10-mL sample of a solution is to be tested for Cl- ion by addition of 1 drop (0.2mL ) of 0.15 M AgNO3 .What is
1. 3 answers
2. asked by Josh
3. 3,538 views
A 47.7-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution.
1. 2 answers
2. asked by Jessica
3. 3,448 views
If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 5.57 M sugar solution, you will end up with a sugar solution
1. 2 answers
2. asked by Angela
3. 2,923 views
What minimum coefficient of friction between the tires and the road will allow a 3700 kg truck to navigate an unbanked curve of
1. 1 answer
2. asked by Ed
3. 2,780 views
if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the mass?i really need like, step by step help
1. 2 answers
2. asked by michelle quendarsv
3. 2,757 views
Years ago, a block of ice with a mass of about 22kg was used daily in a home icebox. The temperature of the ice was 0.0 degrees
1. 3 answers
2. asked by Norah
3. 2,741 views
What volume of a 0.176 M Na2S solution contains 1.01 g of Na+ ions?Please show work, I appreciate your help
1. 2 answers
2. asked by MARIE
3. 2,552 views
if 478 watts of power are used in 14 seconds, how much work was done?
1. 4 answers
2. asked by michelly
3. 2,551 views
Submit pseudocode and a flowchart for the following programming exercise:Test Average and Grade Write a program that asks the
1. 3 answers
2. asked by Anonymous
3. 2,404 views
A cup of coffee (with lid) is enclosed in an insulated cup 0.5 cm thick in the shape of a cube 9.7 cm on a side. The thermal
1. 3 answers
2. asked by Isabell
3. 2,275 views
A bone is found to have 45% of the original amount of carbon 14. If the half life of carbon is 5600 years, how old is the bone.W
1. 3 answers
2. asked by Hannah
3. 2,249 views
a dog sits 1.34m from the center of a merrygo round with an angular speed of 1.26rad/s. if the magnitude of the force that
1. 1 answer
2. asked by vanessa
3. 2,211 views
Write a complete set of quantum numbers for the 5th electron added to H ion..(5th electron in any electron configuration).n= l=
1. 2 answers
2. asked by Anonymous
3. 2,051 views
A scuba diver creates a spherical bubble with a radius of 4.0cm at a depth of 30.0m where the total pressure (including
1. 2 answers
2. asked by Jess
3. 1,950 views
Consider the following reaction at equilibrium:2NH3 (g)<-> N2 (g) + 3H2 (g) ΔH° = +92.4 kJ Le Cha ^ telier's principle
1. 1 answer
2. asked by richy
3. 1,819 views
The 10th term of an arithmetic series is 34, and the sum of the first 20 terms is 710. Determine the 25th term.
1. 3 answers
2. asked by Emily
3. 1,812 views
A rocket of mass 4.50 105 kg is in flight. its thrust is directed at an angle of 64.0° above the horizontal and has a magnitude
1. 3 answers
2. asked by megan
3. 1,647 views
A colony of bacteria increases according to the law of unihabited growth.a) If the number of bacteria doubles in 5 hours, find
1. 2 answers
2. asked by Hannah
3. 1,533 views
There is a host of reasons... or There are a host of reasons.... Which is correct?
1. 1 answer
2. asked by Ann
3. 1,501 views
Spring scale A is attached to the floor and a rope runs vertically upward, loops over the pulley, and runs down on the other
1. 1 answer
2. asked by anonymous
3. 1,482 views
Q 2) A particle executes simple harmonic motion with an amplitude of 10 cm. At what distance from the mean position are the
1. 3 answers
2. asked by Pronab
3. 1,474 views
Submit pseudocode and a flowchart for the following programming exercise:Largest and Smallest Design a program with a loop that
1. 3 answers
2. asked by Anonymous
3. 1,468 views
What is the structure for PCl3Br2 and 3 isomers?
1. 0 answers
2. asked by devin
3. 1,375 views
An unclothed student is in a 27 degree Celsius room.If the skin temperature of the student is 37 degree Celsius, how much heat
1. 1 answer
2. asked by Ashleigh
3. 1,367 views
in triangle PQR,line segment PQ is = and congruent to line segment QR. if m<p = 4x + 50, m<Q =2x + 60 and m<R = 14x + 30, find
1. 1 answer
2. asked by crystal
3. 1,357 views
solve the simultaneous equation2x+2y=7 x^2-4y^2=8
1. 1 answer
2. asked by fardeen
3. 1,344 views
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a
1. 1 answer
2. asked by JC
3. 1,301 views
If 1.70 liters of 0.670 M CuSO4 solution is electrolyzed by passing 4.70 amps through the solution for 3.00 hr using inert
1. 0 answers
2. asked by Dana
3. 1,295 views
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of
1. 1 answer
2. asked by stacy
3. 1,276 views
A spring with spring constant 14.0 N/m hangs from the ceiling. A 490 g ball is attached to the spring and allowed to come to
1. 1 answer
2. asked by Michael
3. 1,251 views
in a titration, 0.0400 mol of solid NaOH is required to neutralize 10.0 mL of H2SO4(aq). From these data, the [H2SO4] is:
1. 2 answers
2. asked by jj re
3. 1,204 views
You want to start a company, and are trying to decide between two different industries. You are doing your final research before
1. 0 answers
2. asked by Mike
3. 1,188 views
If you mix 40.0 mL of a 0.389 M solution of K2CrO4 with 40.0 mL of a 0.389 M solution of AgNO3, what mass of solid forms?
1. 1 answer
2. asked by Angela
3. 1,183 views
Indentify the direction of the netforce in each of the following situations.A marble moves in a circular path inside a paper
1. 0 answers
2. asked by JJ
3. 1,178 views
What are the sequences of weather events a city goes through when an idealized, middle latitude,mature cyclone that hasn't
1. 3 answers
2. asked by Frick
3. 1,160 views
A heavy ball A of mass 10kg is moving at a velocity of 10m/s to the right. When it hits a stationary ball B of mass 5kg, ball B
1. 2 answers
2. asked by Anonymous
3. 1,153 views
I posted these 2 questions a couple of days ago and although the help I received would have been more appreciated if it didn't
1. 1 answer
2. asked by Dania
3. 1,137 views
Indentify the direction of the netforce in each of the following situations.A marble moves in a circular path inside a paper
1. 1 answer
2. asked by JJ
3. 1,134 views
A 0.181 kg mass is attached to a spring and executes simple harmonic motion with a pe-riod of 0.21 s. The total energy of the
1. 2 answers
2. asked by JACK
3. 1,125 views
A rope can withstand a maximum tension of 75 N before snapping . What maximum speed can you spin a 6.0 kg rock in a vertical
1. 4 answers
2. asked by Dwight
3. 1,113 views
Rectangle ABCD has diagonals AC and BD. E is the point of intersection of the two diagonals. If the area of triangle AEB is 8,
1. 3 answers
2. asked by Jen
3. 1,083 views
What volume of NaOH is required to neutralize 50mL of 0.5M phenol?So this is just a small calculation in a complex problem, and
1. 1 answer
2. asked by Jon
3. 1,080 views
The retina of a human eye can detect light when radiant energy incident on it is at least 4.0x10^(-17)J. For light of 535nm
1. 1 answer
2. asked by Anonymous
3. 1,076 views
A scuba diver creates a spherical bubble with a radius of 4.0 at a depth of 30.0 where the total pressure (including atmospheric
1. 2 answers
2. asked by Jess
3. 1,056 views
38. "_______""Ramon, Esteban y Teodora." a. ¿Cómo son? b. ¿Cómo se llama? c. ¿Cómo te llamas? d. ¿Cómo se llaman? D? 39.
1. 4 answers
2. asked by mysterychicken
3. 1,056 views
Could you please help me with this question: A diver dives from the 3 m board at a swimming pool. Her height, y, in metres,
1. 2 answers
2. asked by Gianluca
3. 1,055 views
Hi Sorry I'm reposting this question, I think the answer that was provided was not correct because of the ambiguity of the
1. 1 answer
2. asked by Tia
3. 1,054 views
A 0.49 kg object is attached to a spring with a spring constant 167 N/m so that the object is allowed to move on a horizontal
1. 2 answers
2. asked by KIM
3. 1,019 views
Calculate the pH at the equivalence point in titrating a 0.120 M solution of NaHCrO4 (sodium hydrogen chromate) with 7.0×10−2
1. 1 answer
2. asked by Josh
3. 1,013 views
I am really confused...can someone help me with this? I am supposed to graph solution of given system of linear inequality:y is
1. 1 answer
2. asked by Lynne
3. 1,012 views
If 7 out of 11 ballons are red, what fraction of ballons are not red?
1. 6 answers
2. asked by Sarina
3. 999 views
Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?
1. 2 answers
2. asked by danny123
3. 990 views
Which of the following would make the best buffer solution and explain.HF and NaF or NaC2H3O2 and CH3COOH
1. 1 answer
2. asked by Mic
3. 990 views
B1. (Choosing financial targets) Bixton Company’s new chief financial officer is evaluatingBixton’s capital structure. She
1. 0 answers
2. asked by Anonymous
3. 987 views
With all the help you did for me i want to give a treat. here are some thanksgiving poems I found.Thank You For Inviting Us
1. 2 answers
2. asked by Erin
3. 983 views
1. The US foreign policy of the Kennedy Administration:A. tried to prevent the spread of communism by military intervention and
1. 3 answers
2. asked by anthony
3. 961 views
Which has the higher [H+], 0.40 M RbOH or 0.20 M Ca(OH)2?
1. 1 answer
2. asked by Jane
3. 961 views
27. No es mi carpeta. La carpeta es _________ Susana.a. con b. en c. de d. mas o menos C 28. Yo tengo quince años. Mi hermana
1. 5 answers
2. asked by mysterychicken
3. 958 views
two charges +1.2*10^-8 C and -1.6*10^-8 C are placed at the corners A and B of a right angled triangle ABC in which AB=3cm,
1. 1 answer
2. asked by sanjeet
3. 954 views
A quantity N2 of occupies a volume of 1.4L at 290K and 1.5atm . The gas expands to a volume of 3.1 L as the result of a change
1. 1 answer
2. asked by Kate
3. 945 views
Find the acceleration down the ramp:skateboarder starts from rest at the top of a 12.5 m slick ramp that makes a 25 degree angle
1. 1 answer
2. asked by chelsie
3. 918 views
In 8.6 s a fisherman winds 2.7 m of fishing line onto a reel whose radius is 3.0 cm (assumed to be constant as an
1. 1 answer
2. asked by mackenzie
3. 861 views
there are 3500 species of bees and more than 600,00 species of insects. how many insects are bees. write an inequlity.
1. 4 answers
2. asked by Anonymous
3. 860 views
What is the targeting pathway from translation until the protein reaches it's final functional destination for PFK and insulin?C
1. 1 answer
2. asked by Katy
3. 835 views
what is the molarity of ZnCl2 that forms when 30.0 g of zinc completely reacts with CuCl2 according to the following reaction?
1. 1 answer
2. asked by melissa
3. 820 views
force of a toy jeep if the mass=50kg & is traveling at 4m/s& the radius is 50 centimeters.
1. 0 answers
2. asked by Val
3. 806 views
How many milliliters of 1.55 M NaOH must be added to 125 mL of .19 M NaH2PO4 to make a buffer solution with a pH of 6.90?I have
1. 3 answers
2. asked by Elizabeth
3. 801 views
California Clinics, an investor-owned chain of ambulatory care clinics, just paid a dividend of $2 per share. The firm’s
1. 0 answers
2. asked by 1time
3. 799 views
if a ball, fired as a projectile, travels 30 meters when it leaves the the ground at 20% angel, it will travel the same distance
1. 1 answer
2. asked by luke
3. 798 views
Suppose that a 10-mL sample of a solution is to be tested for Cl- ion by addition of 1 drop (0.2mL ) of 0.15 M AgNO3 .What is
1. 1 answer
2. asked by Josh
3. 784 views
Trying to beat the heat of summer, a physics grad student went to the local toy store and purchased a child's plastic swimming
1. 1 answer
2. asked by BG
3. 778 views
Can you check these thanks.Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7
1. 3 answers
2. asked by Karen
3. 776 views
The side length,s, of a cube is related to its volume, v, by the formula s=v^1/3. A cube box when filled with materials has a
1. 2 answers
2. asked by Andre
3. 775 views
Posted by michelle quendarsv on Saturday, November 20, 2010 at 5:26pm.Posted by michelle quendarsv on Saturday, November 20,
1. 3 answers
2. asked by michelle quendarsv
3. 763 views
If 4.0 L of a 4.9 M SrCl2 solution is diluted to 40 L, what is the molarity of the diluted solution?
1. 3 answers
2. asked by Lisa
3. 761 views
Trying to beat the heat of summer, a physics grad student went to the local toy store and purchased a child's plastic swimming
1. 2 answers
2. asked by BG
3. 758 views
Acceleration is F/SA=F/M this is: direct inverse not sure both direct &inverse
1. 0 answers
2. asked by Val
3. 748 views
Firm L has debt with a market value of $200,000 and a yield of 9%. The firm's equity has a market value of $300,000, its
1. 1 answer
2. asked by Anonymous
3. 747 views
Kilsheimer Company just paid a dividend of $ 4 per share. Future dividends are expected to grow at a constant rate of 6% per
1. 1 answer
2. asked by rb
3. 747 views
How can the three sociological perspectives (e.g., social functionalism, social conflict, and symbolic interaction) be used to
1. 3 answers
2. asked by me
3. 739 views
An oceanographer measured a set of sea waves during a storm and modelled the vertical displacement of waves in meters using the
1. 1 answer
2. asked by Farah
3. 726 views
Consider the following reaction at equilibrium:2NH3 (g)<-> N2 (g) + 3H2 (g) ΔH° = +92.4 kJ Le Cha ^ telier's principle
1. 1 answer
2. asked by richy
3. 723 views
"Though I do hate him as I do hell-pains,Yet, for necessity of present life, I must show out a flag and sign of love, Which is
1. 1 answer
2. asked by NeedHelp
3. 719 views
The thermodynamic equilibrium constant for the following reaction is 0.15 at 1227°C.2 SO2(g) + O2(g) 2 SO3(g) Which is true?
1. 1 answer
2. asked by carla
3. 717 views
Calculate the pH at the equivalence point in titrating a 0.120 M solution of NaHCrO4 (sodium hydrogen chromate) with 7.0×10−2
1. 3 answers
2. asked by Josh
3. 712 views
The magnesium ion has an electron configuration like that of which noble gas?
1. 0 answers
2. asked by Rayniya
3. 696 views
determine the velocity of a toy jeep if it has a distance of 80 meters and a time of 8 seconds?
1. 1 answer
2. asked by Val
3. 691 views
Indicate the number of unpaired electrons present in Kr Atom...?
1. 1 answer
2. asked by Rosie
3. 684 views
Why would it be important for the Alpine countries to maintain good relation with Germany?
1. 2 answers
2. asked by tony
3. 681 views
a coffee shop sells a cup of espresso for $2.00 and a cup of cappuccino for 2.50. on friday, rachel sold 30 more cups of
1. 2 answers
2. asked by mike
3. 680 views
A room is 3.4 smoots wide, 7.1 smoots long, and 1.5 smoots high. 28% of the room's walls are windows and doors. Determine the
1. 0 answers
2. asked by sandhu
3. 661 views
Why do we celebrate Thanksgiving Day?
1. 2 answers
2. asked by Erin
3. 652 views
I wrote this for my class and I just want to make sure I have it right. The role of education plays a very big part in the
1. 2 answers
2. asked by stacey
3. 642 views
Consider the reactionN2 + 3H2 in equilibrium with 2 NH3 . At 25°C Ho = -92.22 kJ and So = -198.53 J/K. Using this information,
1. 0 answers
2. asked by Shayne
3. 626 views
The Cedar Bluff express KAT bus averages 5 mph for 17 minutes, and then 44 mph for 13 minutes. What was its average speed? (mph)
1. 2 answers
2. asked by sandhu
3. 622 views

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