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Questions Asked on April 11, 2010

The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find the wavelength of these extremes when the speed of
1. 3 answers
2. asked by Lena
3. 9,617 views
Which of the following is an exothermic process?ice melting boiling soup water evaporating condensation of water vapor mixing
1. 1 answer
2. asked by Anonymous
3. 6,744 views
What is the linear speed of a point:a) on the equator, b) on the Arctic Circle (latitude 66.5 degrees N), c) at a latitude of
1. 5 answers
2. asked by Alessandra
3. 4,235 views
what is the volume of 62.3 g of nitrogen gas at STP
1. 3 answers
2. asked by karen
3. 3,623 views
A fence is 1.5m high and is 1m from a wall. A ladder must start from the ground, touch the top of the fence, and rest somewhere
1. 4 answers
2. asked by lala
3. 3,599 views
The pressure gauge on a tank registers the gauge pressure, which is the difference between the interior and exterior pressure.
1. 3 answers
2. asked by Tmurg
3. 3,578 views
the reaction of aluminum metal (Al) with oxygen (O2) forms Al2O3. What is a balanced equation for this redox reaction. What are
1. 3 answers
2. asked by cathy
3. 3,445 views
Calculate the temp at which the reaction (2POCL3(g) -> 2PCl3(g)+O2(g))would become spontaneous. Given: DH= +572kJ and DS= 179
1. 1 answer
2. asked by Anonymous
3. 3,310 views
1) All of the following are oxidation-reduction reactions except(a) 2Al(s) + Fe2O3(s) ---> A12O3(s) + 2Fe(s) (b) (NH4)2Cr2O7(s)
1. 1 answer
2. asked by write2khin
3. 2,376 views
Calculate the pH at the equivalence point of 25.0 mL of a 0.100 M acetic acid, CH3COOH, titrated with a 0.100 M sodium
1. 2 answers
2. asked by Anonymous
3. 2,366 views
Estimated and Actual GoodwillPassion Company is trying to decide whether or not to acquire Desiree Inc. The following balance
1. 4 answers
2. asked by Tina
3. 2,302 views
A segment that is a units long makes a C-degree angle with a segment that is bunits long. In terms of a, b, and C, find the
1. 1 answer
2. asked by sally
3. 2,172 views
1.Why is " elastic clause' an appropriate name for Clause 18 of Section 8 of Article l?2.Think about what it mean to "express"
1. 4 answers
2. asked by Shadow
3. 2,136 views
how many moles of solute are contained in each solution?250 mL of a 0.55 M NaNO3 solution? 145 mL of a 4.0 M HNO3 solution? 6.5
1. 3 answers
2. asked by cathy
3. 2,064 views
The rate of growth of the profit is approximated by P'(x)=xe^(-x^2) where x represents time measured in years. The total profit
1. 1 answer
2. asked by Sarah
3. 1,932 views
Consider ammonia, what is the pH of a buffer solution prepared by adding 15.0 g of ammonium chloride to 5.00L of 0.200 M
1. 6 answers
2. asked by Yamani
3. 1,921 views
Jamie rides a Ferris wheel for five minutes. The diameter of the wheel is 10 meters,and its center is 6 meters above the ground.
1. 1 answer
2. asked by sally
3. 1,700 views
A 40cm diameter wheel accelerates uniformly from 240 rpm to 360 rpm in 6.5s. How far (linearly) will a point on the edge of the
1. 1 answer
2. asked by Lilith
3. 1,609 views
Solvefor y: x2 = a2 + b2 − 2aby
1. 1 answer
2. asked by sally
3. 1,597 views
A person exerts a force of 45.0 N on the end of a door 84.0 cm wide. What is the magnitude of the torque if the force is
1. 2 answers
2. asked by Lilith
3. 1,536 views
A 6-pack of 4oz containers of yogaurt costs 2.99. what is the unit price in cents per ounce? Round to the nearest hundredths of
1. 5 answers
2. asked by Bart
3. 1,506 views
A company uses a sales journal, purchases journal, cash receipts journal, cash disbursements journal, and general journal. A
1. 2 answers
2. asked by ZUHAL
3. 1,496 views
The four bases of a baseball diamond form a square 90 feet on a side. The shortstop,S, is in a position that is 50 feet from
1. 0 answers
2. asked by Joline
3. 1,449 views
"What is the biomedical approach as well as the psychodynamic, humanistic-existential, behavior, and cognitive approaches to
1. 1 answer
2. asked by Corinna
3. 1,392 views
If the angular quantities θ,ω,α were specified in terms of degrees rather than radians, how would the kinematics equations
1. 1 answer
2. asked by Charlie
3. 1,385 views
Which would produce greater number of moles of product: a certain amount of hydrogen gas reacting with oxygen gas to make water,
1. 2 answers
2. asked by tay
3. 1,316 views
Could someone please help me with this. I am confused. Math is a weak point for me.Solve the system of equations by graphing.
1. 1 answer
2. asked by B.B.
3. 1,295 views
The equlibrium constant Kc for the reaction: has the value of 4.00 at 500K. If a mixture of 1.00 mol CO and 1.00 mol H2O is
1. 2 answers
2. asked by curtis
3. 1,253 views
In the sentence"Yellowstone National Park is one of the largest national parks in the U.S." is the prepositional "of the largest
1. 1 answer
2. asked by Susan
3. 1,228 views
2^2x-1 = 32^x-22/x - 1/2x= 1/2 (2 over x minus 1 over 2x equals 1 over 2) 3/x + 8/x-5= 1 (3 over x plus 8 over x minus 5 equals
1. 2 answers
2. asked by Karin
3. 1,222 views
1) All of the following are oxidation-reduction reactions except(a) 2Al(s) + Fe2O3(s) �¨A12O3(s) + 2Fe(s) (b) (NH4)2Cr2O7(s)
1. 2 answers
2. asked by write2khin
3. 1,205 views
Design a rational function with the following characteristics: three real zeros, one of multiplicity 2; y-intercept 1; vertical
1. 2 answers
2. asked by I Need Help
3. 1,158 views
A baseball thrown at 25.0m/s strikes a catcher's mitt and slows down to rest in 0.500 s. What is the magnitude of the ball's
1. 4 answers
2. asked by Sioraf
3. 1,126 views
American Tire and Rubber Company sells identical radial tires under the firm's own brand name and privatelabel tires to discount
1. 1 answer
2. asked by vvbnv
3. 1,112 views
A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for
1. 1 answer
2. asked by Anonymous
3. 1,110 views
A company had 66 fewer employees in July 2005 than July 2004. If this represents 5.5 percent of decrease, how many employees did
1. 1 answer
2. asked by Michael Rawls
3. 1,109 views
Two aqueous solutions are mixed: 50.0 mL of 1.60×10−2 M H2SO4 and 50.0 mL of 3.75×10−2 M NaOH.what is the PH of the
1. 2 answers
2. asked by anonymous
3. 1,097 views
to change a fraction to a percent first write the______equivalent of the fractionparallel unit price rate isosceles decimal
1. 2 answers
2. asked by Anonymous
3. 1,088 views
The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to liquid at -161 degrees C.
1. 1 answer
2. asked by Jack
3. 1,048 views
This is homework for communications class, and I'm not sure what the hell I need to do. I need to get a good grade, because I'm
1. 2 answers
2. asked by marie
3. 1,032 views
A car is travelling at 90mph when its brakes are fully applied, producing a constant deceleration of 22 ft/sec2. Find the
1. 1 answer
2. asked by Garrett
3. 1,029 views
solve x-2y=2 and 2x-4y=3then graph each equation
1. 2 answers
2. asked by Jeri
3. 1,020 views
Suppose at a concert a singers voice is radio broadcast all the way around the world before reaching the radio you hold to your
1. 2 answers
2. asked by Grace
3. 964 views
What is the purpose in calculating formal charges?What physical forces create the three dimensional structure of a molecule?
1. 5 answers
2. asked by Johannie
3. 961 views
these are my three thermochemical equations2Cu(s)+S(s) give Cu_2S(s) delta H -79.5 KJ S(s)+O_2 give SO_2(g) -297 KJ
1. 3 answers
2. asked by mohd
3. 943 views
which produces the greatest entropy increase?melting the solid heating the solid heating the liquid heating the gas vaporizing
1. 1 answer
2. asked by Anonymous
3. 897 views
if 23.74ml of 0.01470M NaOH are required to completely neutralize 25.00ml of gastric juice,calculate the concentration of the
1. 3 answers
2. asked by kabelo
3. 878 views
Suppose a record turntable rotates at constant angular velocity.a) Does a point on the rim have radial and/or tangential
1. 1 answer
2. asked by Vita
3. 867 views
2x^2-10x+8
1. 1 answer
2. asked by jerson
3. 856 views
CheckPoint: Interview a Health Care Professional· Post a 200- to 300-word response to the following: Interview a health care
1. 4 answers
2. asked by Tine
3. 844 views
Assignment: Hardware Replacement ProjectThe IT department is implementing a new CRM solution to its corporate offices. The
1. 1 answer
2. asked by Chris
3. 823 views
any references to the topic: can any target environment be perfectly stably or predictable?
1. 1 answer
2. asked by sasha
3. 807 views
your friend says that the equivalent (combined) resistance of resistors connected in series is always more than the resistance
1. 1 answer
2. asked by Don
3. 791 views
If 0.433 mol of gaseous CS2 and 1.62 mol of gaseous H2 are reacted according to the balanced equation at 454 K and in a 40.0 L
1. 2 answers
2. asked by Luc
3. 775 views
a 0.1M NaOH solution has been prepared for you.Describe how you would prepare 1 litre of the same solution
1. 4 answers
2. asked by kabelo
3. 774 views
suppose that this year's money supply is $500b, nominal gdp is $10trillion, and real gdp is $5trillion, what is the price level
1. 0 answers
2. asked by Liyyah
3. 755 views
When Cody's son was born, he put $4,500 in an investment that earns 7% compounded semi-annually. This investment will mature
1. 5 answers
2. asked by Thara!
3. 744 views
Two masses, m1= 1 kg and m2 = 2kg, collide. the first mass has a velocity of .95 m/s east, then 50 degrees NE. The second mass
1. 1 answer
2. asked by lisa
3. 742 views
NO CLUE how TO DO THIS PROBLEMEXPLANATION AND ANSWERS? WE RECENTLY LEARNED TO DO Y=km^x+b IF THAT HELPS! You are a mathematician
1. 1 answer
2. asked by jade.
3. 737 views
a rock group is playing in a club. Sound emerging outodoors from an open door spreads uniformly in all directions. If the
1. 0 answers
2. asked by Teah
3. 735 views
Name one event during each decade 1950s, 1960s, 1970s, 1980s, and 1990s, which had an overriding influence on U.S. culture,
1. 1 answer
2. asked by susan marshall
3. 725 views
The rate of growth of the profit is approximated by P'(x)=xe^(-x^2) where x represents time measured in years. The total profit
1. 1 answer
2. asked by Sarah
3. 720 views
substitution method7x +9y= 19 x=25-5y ___________ 7(25-5y)+9=19 175-35 +9=19 -175 -175 _______________ -26y= -156 y=6 substitute
1. 2 answers
2. asked by Robin
3. 712 views
When Cody's son was born, he put $4,500 in an investment that earns 7% compounded semi-annually. This investment will mature
1. 1 answer
2. asked by Thara!
3. 710 views
Suppose at a concert a singers voice is radio broadcast all the way around the world before reaching the radio you hold to your
1. 0 answers
2. asked by Grace
3. 709 views
two solutions are mixed: 100.0 mL HCl(aq) with p 2.20 and 100.0 mL of NaOH}(aq) with pH} 11.20.What is the pH} of the resulting
1. 1 answer
2. asked by anonymous
3. 708 views
The magnetic field inside an air-filled solenoid 39 cm long and 2.0 cm in diameter is 0.85 T. Approximately how much energy is
1. 1 answer
2. asked by JOSE
3. 703 views
Marble is almost pure CaCO3. Acid rain has a devastating effect on marble statuary left outdoors. Assume that the reaction which
1. 0 answers
2. asked by Judy
3. 695 views
I was thinking that I have to multiply but that doesn't make sense. However, I am terrible at story problems.A child's dose of
1. 3 answers
2. asked by Bart
3. 693 views
Hey guys I was wondering if you guys know the answer to this:Which of the following is NOT true of colligative properties?
1. 2 answers
2. asked by Alex
3. 691 views
can someone help me find a website for this timeline, please.create a timeline tracking the following major themes/paradigm
1. 2 answers
2. asked by dellaine
3. 678 views
Solve the system of equation by graphing. Then classify the system. 3x + y = 4, 4x + 5y = -24. Solution:Infinitity many
1. 0 answers
2. asked by B.B.
3. 677 views
The rate of growth of the profit is approximated by P'(x)=xe^(-x^2) where x represents time measured in years. The total profit
1. 1 answer
2. asked by Sarah
3. 675 views
calculate [h3o] in solutions. 0.040 of HCl and 0.080 HOCl.2. calculate OH for the solutions of 0.0063 ba (OH)2 and 0.0110 of
1. 5 answers
2. asked by anonymous
3. 673 views
what was the ultimate result of Zheng Hes voyages of discovery in the 1400?
1. 1 answer
2. asked by paul
3. 671 views
In my essay:How do I distinguish my ideas from paraphrasing (with appropriate citation at end of paraphrase)so that the entire
1. 4 answers
2. asked by Anonymous
3. 660 views
what are 2 examples of organisms interacting with abiotic factors in the Mono lake ecosystem?
1. 3 answers
2. asked by Linda
3. 657 views
Even if you didn't know these were cities of the US, how could you tell from the temperature curves that they were all in the
1. 0 answers
2. asked by Anonymous
3. 655 views
Conduct an interview to find out how someone elseresponds to the question, “Why is a negative number times a negative number a
1. 1 answer
2. asked by kelly
3. 649 views
Multiple choice1. If the friend offers to pay you $1 five years from today, the net present value will: A)be higher than $1.
1. 2 answers
2. asked by Dina
3. 648 views
The polynomial 0.041h-0.018a-2.69 can be used to estimate the lung capacity,in liters,of a female with height H,in
1. 0 answers
2. asked by Terry
3. 631 views
Scholars agree that our basic emotions are happiness and anger.True or False
1. 1 answer
2. asked by Hannah
3. 629 views
Is it true when the problem says solvex= then it is one number, or fraction. The test does say below where it is looking for an
1. 1 answer
2. asked by Loren
3. 624 views
Can someone please help me correct this? It's about restaurants and foods at my college. I'd really appreciate some help,
1. 2 answers
2. asked by Sara
3. 620 views
According to Smedley Butler what the are reasons the US has intervened in countries like CUba, Haiti, Mexico, Nicaragua, the
1. 1 answer
2. asked by Taylour
3. 619 views
I do not understand how to decide which method would you use to determine whether this proportion is true or false? 19/6=4/27
1. 2 answers
2. asked by Bart
3. 617 views
How much heat is required to raise the temperature of 20.0g of H2O from 18.0 Celcius to 28.0 Celcius?
1. 2 answers
2. asked by Abbie
3. 614 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
1. 1 answer
2. asked by Adam
3. 606 views
1o plant based products used weekly. Classify them into plant for food and plant for fiber
1. 1 answer
2. asked by sally
3. 596 views
Using gauss's law,calculate the electricfield at a distance r=20cm from a point charge q=4microcoulomb.
1. 1 answer
2. asked by Ayodele
3. 590 views
why should heating a content containingZn and HCl be heated in fume hood.
1. 2 answers
2. asked by Rita
3. 588 views
) FIVE JOBS ARE SCHEDULED IN TWO MACHINES IN A MANUFACTURING SHOP. AL FIVE JOBS ARE TO UNDERGO PROCESSING IN BOTH THE MACHINES
1. 0 answers
2. asked by MANISH
3. 582 views
good title for a paper on traditional and online learning?
1. 2 answers
2. asked by Mary
3. 581 views
When Raisel's son was born, she put $7,500 in an investment that earns 5.25% compounded quarterly. This investment will mature
1. 5 answers
2. asked by Thara!
3. 577 views
Name five of the six points you should check in practicing your speech.
1. 1 answer
2. asked by JamesMichael
3. 573 views
Given a sufficient supply of nitrogen gas, how many moles of ammonia gas will be produced from 10.8 moles of hydrogen gas?
1. 3 answers
2. asked by jhennel
3. 571 views
1.Do you think the special powers of the Senate or those of the House of Representatives are more important?What is this
1. 1 answer
2. asked by Shadow
3. 568 views
) I need to convert water vapor pressure 2.3 cm of Hg into cm of H2O. Density Hg= 13.6 gm/cm3 and Density H20 = 1.0
1. 1 answer
2. asked by gene
3. 567 views
How do you solve L=2.43*9.0^0.3326 to get the wingspan of a pelican in feet?
1. 1 answer
2. asked by Bobbie
3. 566 views
What must we do to truly understand ourselves?-essay. please help me with changes if any are required in the following essay on
1. 3 answers
2. asked by yatharth
3. 563 views

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