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2008
April

Questions Asked on April 3, 2008

The melting point of a solid is 90.0 d/C. What is the heat required to change 2.5 kg of this solid at 40.0 d/C to a liquid? The
1. 3 answers
2. asked by Jon
3. 6,020 views
Venus has radius 6.05 x 10^6 m and mass 4.87 x 10^24 kg. Calculate the value of acceleration due to gravity on Venus's surface.d
1. 5 answers
2. asked by Jon
3. 6,016 views
A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal
1. 1 answer
2. asked by Jon
3. 4,884 views
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet and the length of the ladder
1. 7 answers
2. asked by astrid
3. 4,257 views
A marksman at rest fires a 4.00-kg gun that expels a bullet of mass 0.0140 kg with a velocity of 181 m/s. The marksman's mass is
1. 5 answers
2. asked by Jon
3. 4,249 views
Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart.F =
1. 2 answers
2. asked by Jon
3. 4,233 views
A student lifts a 1.2 kg bag from her desk, which is 0.59 m high, to a locker that is 2.9 m high. What is the gravitational
1. 2 answers
2. asked by Jon
3. 3,424 views
A 1.00-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 2.00 m/s. Find the
1. 2 answers
2. asked by Jon
3. 3,342 views
Suppose you are hiking down the Grand Canyon. At the top, the temperature early in the morning is a cool 1°C. By late
1. 1 answer
2. asked by Will
3. 3,320 views
A stroboscope is a light that flashes on and off at a constant rate. It can be used to illuminate a rotating object, and if the
1. 1 answer
2. asked by La' TGasha
3. 2,361 views
Which part of the writing process was easiest foryou? Which part was the most difficult? What did you learn from your writing
1. 1 answer
2. asked by rose
3. 2,219 views
The pH of a 1.0 x 10^-3 M Ba(OH)2 solution at 25 degrees C ishow can 11.3 be the right answer.
1. 1 answer
2. asked by LT
3. 1,964 views
A 6110-kg bus traveling at 20.0 m/s can be stopped in 24.0 s by gently applying the brakes. What is the average force exerted on
1. 2 answers
2. asked by Jon
3. 1,864 views
i have no idea!The real estate assessor for a country government wants to study various characteristics of single family houses
1. 2 answers
2. asked by tanya
3. 1,754 views
A force of 200 N acts on a 7.20-kg bowling ball for 0.350 s. Calculate its change in velocity.7.20/0.350 = 20.57 m/s
1. 6 answers
2. asked by Jon
3. 1,579 views
A piece of nickel is placed in a beaker with 350 mL of copper (II) sulfate. Calculate the concentration of the copper (II)
1. 1 answer
2. asked by Michelle
3. 1,518 views
If 0.50 mol of iodine and 0.50 mols of chlorine are initially placed into a 2.00-L reaction vessel at 25 Degrees Celsius, find
1. 2 answers
2. asked by John L
3. 1,514 views
A 0.50-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 1.0 m/s. Find the
1. 1 answer
2. asked by Jon
3. 1,509 views
Raul pushes a stalled car with a force of 204 N. If the required force decreases at a constant rate from 204 N to 44.0 N for a
1. 0 answers
2. asked by Jon
3. 1,448 views
Answer the following questions in a 100- to 200-word response. Cover each bullet pointin your answer. o In the future, how will
1. 1 answer
2. asked by rose
3. 1,336 views
The Ksp of Ag2CrO4(s) is 1.12 x 10^-12. Calculate the molar solubility of AgCrO4(s)a) in pure water b)in a solution of 0.10
1. 1 answer
2. asked by John L
3. 1,281 views
I was thinking about how clubs get started in college in the first place. For example there is a club for different
1. 8 answers
2. asked by ~christina~
3. 1,278 views
A carpet measures 7 meters 3 decimeters in length 4 meters 2 decimeters in width. What is its area in square meters?
1. 3 answers
2. asked by Brittany
3. 1,276 views
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing
1. 5 answers
2. asked by Tasha
3. 1,256 views
Liquid Nitrogen tetroxide, N2O4(l), was used as a fuel in Apollo missions to the moon. In a closed container the gas N2O4(g)
1. 1 answer
2. asked by Claus
3. 1,235 views
An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim,
1. 1 answer
2. asked by tanya
3. 1,225 views
Help, I don't know where to begin.Your supervisor would like you to do some research in preparation for an article regarding the
1. 3 answers
2. asked by DD
3. 1,219 views
You are given 350 mL a stock solution of 8.32E-03 M benzoic acid, MW = 122.125 g/mol.If the actual density should be 1.05 g/mL.
1. 1 answer
2. asked by Udith
3. 1,189 views
k so likei need to make a concept map using the following terms plants gymnosperm angiosperm flowers fruits maple tree cucumbers
1. 1 answer
2. asked by Anonymous
3. 1,157 views
ω= 2.4π radians/secondΔθ= 1.0π radians Δt= d What is the value of d? answer in units of seconds.
1. 1 answer
2. asked by Anonymous
3. 1,141 views
I thought he was "counting his chikens"what does the phrase in quotes mean. It`s not meant to be literal
1. 2 answers
2. asked by Lena
3. 1,140 views
the free-fall acceleration on the surface of the moon is appromimately 1/6 of the free-fall acceleration on the surface of
1. 2 answers
2. asked by sake
3. 1,126 views
According to my experience, the easiest part of the writing process was the brainstorming, which allows me to outline a large
1. 2 answers
2. asked by rose
3. 1,113 views
identify 3-5 factors that define teaching as a professional career, and elaborate on how teachers employ these factors on a
1. 3 answers
2. asked by Dawn
3. 1,092 views
When I have the table filled out, what would I need to do in order to calculate the solubility product for calcium hydroxide?The
1. 4 answers
2. asked by Jessica
3. 1,070 views
Explicitly explain how to tell an answer is correct when solvingi systems of equations.-thanks so much!
1. 1 answer
2. asked by Ellen
3. 1,067 views
Hi,Could anyone list the MAIN points in summarising the geological and chemical processes causing arsenic contamination in
1. 3 answers
2. asked by Leo
3. 1,066 views
Using rational zero theorem find all rational zerosP(x)=3x^3+43x^2+43x+27 Factors: 27, -1, 3, 9, 27 Factors: 3, -1, 3 +-1/3,
1. 2 answers
2. asked by Sara
3. 1,066 views
An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim,
1. 1 answer
2. asked by tanya
3. 1,063 views
I need to know the three main reasons the Reconstruction efforts to ensure equal rights to the Freedman failed?
1. 1 answer
2. asked by Sue
3. 1,050 views
When 0.500 g of an unknown compound was dissolved in 15.0 g benzene, the freezing point depression was determined to be 0.320 C.
1. 7 answers
2. asked by James
3. 1,011 views
A 1600 kg vehicle moves with a velocity of 19.5 m/s. Calculate the power required to reduce the velocity to 3.20 m/s in 11.0 s.I
1. 1 answer
2. asked by Jon
3. 1,009 views
carbon dating requires that the object being tested contains what?
1. 4 answers
2. asked by Jessica
3. 963 views
The average, that is, the arithmetic mean, age of a group ofdoctors and lawyers is 40. If the average age of the doctors is 35
1. 5 answers
2. asked by Jas
3. 953 views
Which of the following physical properties can be used to measure temperature using a thermometer?A)volume B)pressure C)density
1. 2 answers
2. asked by Jon
3. 939 views
A marksman at rest fires a 4.00-kg gun that expels a bullet of mass 0.0140 kg with a velocity of 181 m/s. The marksman's mass is
1. 2 answers
2. asked by Jon
3. 915 views
Do we even need Miranda anymore, doesnt everyone already know the warning?
1. 0 answers
2. asked by Tom
3. 895 views
We are writing a paper on "Race in your Community" and I have had a hard time getting going because I live in a small town with
1. 3 answers
2. asked by Ruby
3. 893 views
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing
1. 0 answers
2. asked by Will
3. 881 views
True/FalseA hot object has more thermal energy than a similar cold object only because of greater kinetic energy. answer:true
1. 1 answer
2. asked by Jon
3. 870 views
A 1.00-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 2.00 m/s. Find the
1. 1 answer
2. asked by Jon
3. 861 views
A car travels at a constant speed around a circular track whose radius is 2.5 km. The car goes once around the track in 430 s.
1. 1 answer
2. asked by Tasha
3. 856 views
An ice skater of mass 55.3 kg stops to tie his shoe and is at rest. A second ice skater of mass 32.7 kg is moving at a velocity
1. 0 answers
2. asked by Chaz
3. 854 views
a fisherman's scale stretches 3.6 cm when a 2.7 kg fish hangs from it.what will be the amplitude and frequency of vibration if
1. 1 answer
2. asked by leena
3. 850 views
How can I find the restrictions on the domain for this problem: f(x)=1/x. I have no idea how to find the range and domain for
1. 9 answers
2. asked by Anonymous
3. 831 views
Do you have a sister?Yes, I do. I have a brother and a sister. Do you have any brothers and sisters? Yes, I do. I have a brother
1. 1 answer
2. asked by John
3. 811 views
A solution is made by mixing 20.0 mL of toluene C6H5CH3d=0.867gmL with 150.0 mL of benzene C6H6d=0.874gmL.Assuming that the
1. 3 answers
2. asked by Dora
3. 810 views
In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking
1. 1 answer
2. asked by connie
3. 795 views
A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal
1. 1 answer
2. asked by Jon
3. 779 views
Calculate the solubility of silver chloride in a 0.010 mol/L solution of sodium chloride at 25 degrees Celsius. At SATP, Ksp
1. 1 answer
2. asked by John L
3. 771 views
When a closed tin is heated, the pressure inside it increases. This happens because:The molecules move faster and each molecule
1. 1 answer
2. asked by Jon
3. 770 views
Can anyone tell me what happens when you do the diffusion lab? It is the one where you take food coloring and drop it into hot,
1. 3 answers
2. asked by Molly
3. 763 views
A step-up transformer has 120 turns on its primary coil. It has 1150 turns on its secondary coil. The primary circuit is
1. 1 answer
2. asked by martin
3. 762 views
ACON lTD ACQUIRES THE ASSETS AND ASSUMES THE LIABILITIES OF BIRD LTD WHICH HAVE OPEN MARKET VALUES OF AAssets $120,000
1. 0 answers
2. asked by David
3. 761 views
If Earth shrinks in size such that its shape and mass remain the same, but the radius decreases to 0.21 times its original
1. 2 answers
2. asked by Jon
3. 759 views
A 437.7 N child and a 237.1 N child sit on either end of a 2.5 meter long seesaw.How far from the 437.7 N child should the pivot
1. 2 answers
2. asked by Kendra
3. 752 views
An automobile tire has a radius of 0.380 m, and its center moves forward with a linear speed of v = 19.0 m/s.(a) Determine the
1. 0 answers
2. asked by La' TGasha
3. 752 views
Jenny's mom runs 3 miles 3 times a week . which number sentence can be used to find how many yards she will run in 1 day?A 3 x 3
1. 3 answers
2. asked by hannah
3. 741 views
o prepare a 200 mL of aqueous stock solution X, you transferred 50 mL of a known concentration solution into a 200 mL volumetric
1. 1 answer
2. asked by Un
3. 733 views
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing
1. 0 answers
2. asked by Ant
3. 724 views
If Earth shrinks in size such that its shape and mass remain the same, but the radius decreases to 0.21 times its original
1. 0 answers
2. asked by Jon
3. 720 views
1. I have Mom, Dad, and a sister.2. I have a mom, a dad, and a sister. Which one is grammatical?
1. 2 answers
2. asked by John
3. 710 views
Given the equilibrium system PCL55(g) <---> PCL3(g) + Cl2(g)k = 12.5 at 60 degrees Celsius. A 1.0-L reaction vessel is analyzed
1. 1 answer
2. asked by Claus
3. 710 views
Venus has radius 6.05 x 10^6 m and mass 4.87 x 10^24 kg. Calculate the value of acceleration due to gravity on Venus's surface.I
1. 0 answers
2. asked by Jon
3. 706 views
Why is the order of magnitude of5x10^-11 -10 instead of -11?
1. 3 answers
2. asked by Maximus
3. 699 views
Carol and Bruno drag a box of mass 58.0 kg along a frictionless floor. Carol pushes the box with a force of 11.4 N at an angle
1. 1 answer
2. asked by Jon
3. 699 views
A group of mathematics teachers went to a restaurant. They agreedto split the bill equally. When the bill arrived, two of them
1. 2 answers
2. asked by Jas
3. 682 views
A child is twirling a 0.0116 kg ball on a string in a horizontal circle whose radius is 0.102 m. The ball travels once around
1. 1 answer
2. asked by Tasha
3. 678 views
Who were the "People of the Purple?"
1. 2 answers
2. asked by Taylor
3. 678 views
In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking
1. 2 answers
2. asked by C
3. 670 views
what is the ability to be squeezed into a smaller volume
1. 0 answers
2. asked by ?
3. 664 views
I am a first grader at New York Middle School.I am a first year at New York Middle School. I am in the first grade at New York
1. 2 answers
2. asked by John
3. 652 views
In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking
1. 1 answer
2. asked by C
3. 650 views
How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from
1. 1 answer
2. asked by Dave
3. 637 views
(A student is introducing herself and her sister.)Hi. I am Yujin. I am from Korea. I go to middle school. I have a sister. She
1. 2 answers
2. asked by John
3. 636 views
I'm working on an assignment in regards to nationalism.I am focusing on the countries or region: Middle East, Africa, Asia,
1. 1 answer
2. asked by meg
3. 633 views
How much work is a 200 kg weightlifter doing while he holds a 1000 kg barbell stationary .75 m over his head?1000(.75) = 7350 J
1. 0 answers
2. asked by Jon
3. 630 views
Do you see the job of the non-profit financial manager as getting easier or more difficult in the future? Where might you get
1. 0 answers
2. asked by Broshun
3. 628 views
min/max pointminimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2
1. 4 answers
2. asked by John
3. 626 views
Solving for systems of equation using the elimiation method.3x-2y=x-6 3(x+2y)=3
1. 3 answers
2. asked by G
3. 620 views
You transfer a 2M stock solution of Y into a container using a slightly wet pipet containing water drops. The concentration of
1. 1 answer
2. asked by Un
3. 619 views
Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart.F =
1. 1 answer
2. asked by Jon
3. 616 views
solvex+21/x+3<2 x+21/x+3 - 2(x+3)/x+3 <0 x+21-2(x-3)/x+3<0 x+21-2x-6/x+3<0 answer 15-x/x-3<0(is this right?)
1. 2 answers
2. asked by Cynthia
3. 613 views
1) Explain why propan-1-ol has the number "1" in the name.-The number is there to show where the OH must go. 2) Say why ethanol
1. 1 answer
2. asked by Anonymous
3. 610 views
In the sentence:"I like to eat berries." What's the predicate?
1. 2 answers
2. asked by Kiki
3. 609 views
How is the job of a financial manager in a nonprofit organization different from that of a financial manager with a
1. 1 answer
2. asked by Broshun
3. 604 views
Does anyone know any specific poems or a website with poems that may relate to any of these themes...?- loss of innocence/youth
1. 1 answer
2. asked by Alice
3. 601 views
A cubic solid of plastic floats in water with 2/3 of its volume below the water line. What is the density? If the total volume
1. 1 answer
2. asked by Mike
3. 601 views
Discuss similarities and differences in the roles economists play as policy advisors and as scientists. How would advice offered
1. 0 answers
2. asked by Sherrie
3. 595 views
If the TV draws a 150W of power, the dishwasher 1500 W of power and the computer 100 W of power, will a typical 15 A circuit
1. 1 answer
2. asked by Andrea
3. 580 views

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