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2012
February

Questions Asked on February 10, 2012

Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas
1. 6 answers
2. asked by Lauren
3. 18,790 views
the bases of a trapezoid are 22 and 12 respectively. The angles at the extremities of one base are 65 degree and 40 degree
1. 5 answers
2. asked by joe
3. 16,024 views
At constant pressure, which of these systems do work on the surroundings? Check all that apply.2A (g) + B(s) --> 3C(g) 2A (g)
1. 7 answers
2. asked by Akle
3. 15,100 views
If A + B + C = 180°, Prove thatCos²A + Cos²B + Cos²C = 1-2cosAcosBcosC
1. 2 answers
2. asked by Kewal
3. 10,747 views
Suppose that there are three beachfront parcels of land available for sale in Asilomar and six people who would each like to
1. 9 answers
2. asked by peter
3. 10,014 views
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges
1. 2 answers
2. asked by Jackie
3. 6,902 views
Which of the following solutions will have a higher boiling point?A. 1m C6H12O6 B. 1m NaCl C. 1m MgCl2 D. 1m AlCl3 And pls
1. 4 answers
2. asked by vivian
3. 6,747 views
A researcher studying the nutritional value of a new candy places a 4.90 gram sample of the candy inside a bomb calorimeter and
1. 5 answers
2. asked by Carey
3. 6,668 views
1.9 mol HCl and 3.8 mol NaOH react according to the equationHCl + NaOH −→ NaCl + H2O . Calculate the amount in moles of NaCl
1. 2 answers
2. asked by Mary
3. 5,348 views
A monochromatic light source used in a diffraction experiment has a wavelength of 4.60 x 10-7 m. (a) What is the frequency of
1. 2 answers
2. asked by Abby
3. 4,987 views
A bowling ball (mass = 7.2 kg, radius = 0.12 m) and a billiard ball (mass = 0.31 kg, radius = 0.028 m) may each be treated as
1. 3 answers
2. asked by cody
3. 4,461 views
What do they like? Ask these people what they like using the words from the box.- los huevos - el cafe -el jugo de naranja -el
1. 9 answers
2. asked by Anonymous
3. 4,452 views
Two identical small spheres possessing charges q1 and q2 are separated by distance r. Which change would produce the greatest
1. 1 answer
2. asked by simin
3. 4,359 views
A wooden cube of side 10cm has mass 700g.What part of it remains above the water surface while floating?
1. 5 answers
2. asked by Anonymous
3. 3,770 views
A compressed gas cylinder contains 1.00 103 g of argon gas. The pressure inside the cylinder is 2096 psi (pounds per square
1. 1 answer
2. asked by Elizabeth
3. 3,610 views
The backyard of a house is in the shape of a triangle. The longest side is 4 ft shorter than twice the shortest side. The third
1. 1 answer
2. asked by Jamie
3. 3,182 views
The density of ice is 0.92g cm-3 & that of sea water is 1.025g cm-3.Find the total volume of an iceberg which floats with its
1. 1 answer
2. asked by MOHIT
3. 2,983 views
Sketch the region enclosed by y=e^2x, y=e^6x, and x=1. Decide whether to integrate with respect to x or y. Then find the area of
1. 1 answer
2. asked by Rebecca
3. 2,942 views
15 At a particular location and time, sunlight is measured on a 1 m2 solar collector with anintensity of 500.0 W. If the peak
1. 3 answers
2. asked by hannah
3. 2,583 views
Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb
1. 2 answers
2. asked by Jamie
3. 2,510 views
How do I write a balanced equation for the synthesis of benzoic acid using the grignard reagent.To make the grignard reagent I
1. 1 answer
2. asked by lidia
3. 2,499 views
When a certain amount of MgF2 is added to water, the freezing point lowers by 3.5 oC. What was the molality of the magnesium
1. 1 answer
2. asked by lw
3. 2,353 views
If the heat from burning 5.800 g of C6H6 is added to 5691 g of water at 21 °C, what is the final temperature of the water?2C6H6
1. 13 answers
2. asked by Jen
3. 2,262 views
Kristen wants to make 7.5 ounces of a 25% jasmine essential oil. She only has a 15% jasmine mixture and a 30% jasmine mixture
1. 1 answer
2. asked by Anonymous
3. 2,188 views
Alex bought a new easy chair for $399. She bought it on the "12 months is the same as cash" plan. The contract stated that if
1. 1 answer
2. asked by help please help!!!
3. 2,180 views
Which of the following statements is part of the kinetic theory?The particles of a gas move independently of each other. The
1. 1 answer
2. asked by Sara
3. 2,069 views
The area of a floating circular oil spill in the ocean is increasing at a rate of 96pi square meters per second. When the area
1. 1 answer
2. asked by Scooby10
3. 1,929 views
2 solutions of equal amounts in a u-tube are separated by a semipermeable membrane. The level os the (more/less( concentrated
1. 1 answer
2. asked by vivian
3. 1,865 views
On her last credit card bill, Linda paid a variable rate of 1.8 percent on the first $200 and 1.2 percent on any amount over
1. 1 answer
2. asked by help please help!!!
3. 1,858 views
During a football match, the ball shot towards the goal struck the defender's foot at the speed of 10m/s and it bounced back at
1. 1 answer
2. asked by Kushagra
3. 1,801 views
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges
1. 1 answer
2. asked by Jackie
3. 1,696 views
A 210W heater is placed in 2KG of water. What temperature rise is produced if the heater is switched on for 200 seconds?
1. 3 answers
2. asked by SMK
3. 1,673 views
The reaction 2NO2--->2NO+O2 has the rate constant k= 0.68 m-1s-1.If the initial concentration of NO2 is 9.30×10−2 M, how long
1. 1 answer
2. asked by Jeremy
3. 1,640 views
Calculate the distance traveled in 6.00 s as a given sound moves through (a) water at 25.0ºCin m/s; (b) water at 25.0ºC in
1. 1 answer
2. asked by Hannah
3. 1,613 views
A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0 L otherwise empty container at 23°C.a) What is the
1. 2 answers
2. asked by Elizabeth
3. 1,588 views
i want to ask what be thematic statement? it say write 2 or 3 sentences that summarize the theme of the story. It should be the
1. 1 answer
2. asked by Mohammad
3. 1,557 views
A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s.
1. 1 answer
2. asked by Anonymous
3. 1,480 views
Harold says, to find 6 x 8, I can use the facts for 5 x 4 and 1 x4. Do you agree? Explain
1. 3 answers
2. asked by Khrys
3. 1,472 views
A 75.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force
1. 1 answer
2. asked by strugglemcgee
3. 1,425 views
Two boxes (b1 = 23 kg and b2 = 57 kg) are being pushed across a horizontal frictionless surface, as the drawing shows. The 48-N
1. 1 answer
2. asked by cody
3. 1,420 views
A conducting spherical shell with a total charge of +12.6 micro-coulombs has a point charge of -3.6 micro-coulombs placed at its
1. 0 answers
2. asked by Mandaleigh
3. 1,411 views
The following information is given for ether, C2H5OC2H5, at 1atm:boiling point = 34.6oC Hvap(34.6oC) = 26.5 kJ/mol melting point
1. 1 answer
2. asked by Hannah
3. 1,407 views
In a rhombus, m1 = 18x, m2 = x + y, and m3 = 30z. Find the value of the variables x,y, and z. .
1. 1 answer
2. asked by McKenzie
3. 1,375 views
Which institution developed outside the limits of the written Constitution of the United States?
1. 3 answers
2. asked by aj
3. 1,368 views
On his last credit card bill, Frank paid a variable finance rate of 1.5 percent on the first $500, and one percent on any amount
1. 1 answer
2. asked by help please help!!!
3. 1,362 views
In the 17th century, there were more than 800,000 inhabitants of Paris. At the time, it was believed that no one had more than
1. 1 answer
2. asked by Dan
3. 1,356 views
Sarah blends coffee for Tasti-Delight. She needs to prepare 170 lbs of blended coffee beans selling for $3.59 per pound. She
1. 1 answer
2. asked by Anonymous
3. 1,356 views
How much water, in grams, can be made from3.59 × 10^24 hydrogen molecules? Answer in units of g
1. 1 answer
2. asked by Mary
3. 1,311 views
Sandra was thinking of a quadrilateral. All 4 sides are the same length and are parallel. There are 4 right angles. Which
1. 1 answer
2. asked by Isabella
3. 1,263 views
I have to take up math 100 for college can you give me tips on what to study?Im taking up nursing and i was told i need alot of
1. 1 answer
2. asked by renak
3. 1,236 views
a sentence in the story says that a quarrelsome wife may be a blessing what does that mean in rip van winkle
1. 2 answers
2. asked by taylor
3. 1,234 views
A rock of mass 32 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air
1. 1 answer
2. asked by cody
3. 1,216 views
At a certain temperature the concentration of was 0.400 and that of was 0.235 . At equilibrium the concentration of was found to
1. 1 answer
2. asked by aa
3. 1,205 views
Find c>0 such that the area of the region enclosed by the parabolas y=x^2−c^2 and y=c^2−x^2 is 90.
1. 1 answer
2. asked by Rebecca
3. 1,196 views
In a constant-pressure calorimeter, 50.0 mL of 0.300 M Ba(OH)2 was added to 50.0 mL of 0.600 M HCl. The reaction caused the
1. 6 answers
2. asked by Eric
3. 1,181 views
Sb2S3(s) + 3 Fe(s) 2 Sb(s) + 3 FeS(s)When 14.7 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent
1. 1 answer
2. asked by Anonymous
3. 1,178 views
using this information: if an object is thrown straight up into the air from the height H feet per second then at time tseconds
1. 0 answers
2. asked by deana
3. 1,177 views
A silver wire and a platinum wire of the same length have the same resistance. What is the ratio of the diameter of the silver
1. 0 answers
2. asked by jason
3. 1,177 views
2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJIf the heat from burning 7.000 g of C6H6 is added to 5691 g of water at 21
1. 3 answers
2. asked by David
3. 1,170 views
A box slides down a 37° ramp with an acceleration of 1.24 m/s2. Determine the coefficient of kinetic friction between the box
1. 1 answer
2. asked by joana
3. 1,159 views
The density of ice is 0.92 g cm-3 & that of sea water is 1.025 g cm-3.Find total volume of an iceberg which floats with its
1. 1 answer
2. asked by MOHIT
3. 1,157 views
As a result of the mexican war, theunited states a. gained mexican territory b. won $ million from mexico c. lost california to
1. 5 answers
2. asked by stephanie
3. 1,143 views
We are currently studying "earning money" for math. I read this sentence:When a store claculates its profit as a percentage of
1. 1 answer
2. asked by Jason
3. 1,141 views
a vertical translation of f(x)=e^x changes its asymptote?Sometimes, always or never??
1. 2 answers
2. asked by beyonce knowles
3. 1,137 views
According to Peter Saundry, there is no true universal code of ethics because standards of conduct vary from place-to-place and
1. 2 answers
2. asked by Anonymous
3. 1,128 views
I'm Doing a english speech on propaganda my topic is "Women Should rule the world", can you help write by giving me main points
1. 3 answers
2. asked by Teekay
3. 1,121 views
compare and contrast rip's life after his long sleep with his earlier life. in rip van winkle
1. 6 answers
2. asked by taylor
3. 1,115 views
A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at the rate of 1kg/s and
1. 2 answers
2. asked by Kushagra
3. 1,111 views
a) What is the frequency of a photon of UV radiation ( = 2.00 x 10^-7 m)? When you inputlarge numbers such as those in this
1. 0 answers
2. asked by Abby
3. 1,105 views
Draw two different rectangles. Each rectangle should have a perimeter of ten units.
1. 1 answer
2. asked by Tyran
3. 1,102 views
A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s.
1. 1 answer
2. asked by Anonymous
3. 1,077 views
need to unscramble these lettersamiaramtdrs
1. 5 answers
2. asked by erick
3. 1,070 views
Delilah buys an $18,000 car for her catering business. The equation below shows her earnings after each catering event, where x
1. 3 answers
2. asked by Lalt
3. 1,069 views
18 young adults you need 108 cups of water and 72 cups of water show how to sclae down this ratio to feed 3 young adults
1. 1 answer
2. asked by jennifer
3. 1,062 views
i writing another essay but this be about love and i have to write expository essay. i have to write does it exist? or it only
1. 5 answers
2. asked by Mohammad
3. 1,050 views
Calculate the average over the given interval. f(x)=sin(pi/x)/x^2, [1,2]
1. 1 answer
2. asked by Anonymous
3. 1,049 views
A rock of mass 44 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air
1. 2 answers
2. asked by Anonymous
3. 1,037 views
fin the center ,principal axis vertices, sketch the graph of 4x^-y^2 +56 x +2y+195=0
1. 1 answer
2. asked by joey
3. 1,023 views
A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0 L otherwise empty container at 23°C.a) What is the
1. 1 answer
2. asked by Elizabeth
3. 1,017 views
What mass of KH2PO4 is needed to prepare 500.0 mL of a 0.067M solution?
1. 1 answer
2. asked by John
3. 1,014 views
When a wheel of radius R rotates about a fixed axis, do all points on the wheel have1) The same angular velocity? Explain. 2)
1. 2 answers
2. asked by qwertzuiop
3. 1,010 views
One 250mg tablet is made up of chemical A , B, ,C in a ratio 3:2:5. The Pharmacist Has 60mg of chemical B left. How much of
1. 1 answer
2. asked by Shanna
3. 1,003 views
A microwave oven has a power requirement of 1264 W. A frozen dinner requires 5.5 min to heat on full power.
1. 2 answers
2. asked by moe
3. 1,003 views
An infinite sheet with a surface charge density of -2.1 micro-coulombs/m2 runs parallel to the x axis. Another infinite sheet a
1. 0 answers
2. asked by Mandaleigh
3. 1,001 views
Find the maximum height reached by a ball thrown upward at a velocity of 95ft/s
1. 1 answer
2. asked by ####tasha####
3. 994 views
samuel is 5/8 inch taller than jackie. shelley is o.7 inch taller than jackie. craig is inch taller than jackie. who is taller?
1. 2 answers
2. asked by colby
3. 955 views
how could you use 5 x 6 = 30 to find the product of 6 x 6?
1. 5 answers
2. asked by khrys
3. 940 views
HOW MANY GRAMS OF N2O ARE FORMED IF 0.46 OF NH4NO3 IS USED IN THE REACTION
1. 0 answers
2. asked by kINA
3. 940 views
A softball pitcher throws a ball by swinging his arm with an angular speed of 9.81 rad/s. If the pitchers arm is 0.640 m long,
1. 1 answer
2. asked by Anonymous
3. 936 views
A girl can get to school in 15 minutes if she rides her bike. It takes her 45 minutes if she walks. She travels 10 miles per
1. 2 answers
2. asked by vickie
3. 918 views
Calculate the molarity of 2.05 L of a solution containing 1.51 g of dissolved KBr
1. 1 answer
2. asked by jessica
3. 912 views
A billiard ball of mass 0.16 kg has a speed of 1.80 m/s and collides with the side of the billiard table at an angle of 34.6°.
1. 1 answer
2. asked by sara
3. 884 views
116 g of isopropanol, formula C3H8O, contains how many moles?
1. 1 answer
2. asked by Brianna Bernard
3. 884 views
Find c>0 such that the area of the region enclosed by the parabolas y=x^2−c^2 and y=c^2−x^2 is 90.
1. 1 answer
2. asked by Rebecca
3. 881 views
this is a tough question and I don't get it. It says: What factor causes the difference between weight and mass?
1. 1 answer
2. asked by Gabby ( 5 grade)
3. 864 views
1. The appearance of a document can do all of the following EXCEPT: a.establish rapport with the audience.b. guide your readers'
1. 5 answers
2. asked by sososola2012
3. 863 views
What is the molarity of an aqueous solution containing 43.7 g of glucose (C6H12O6) in 1.1 L of solution?
1. 1 answer
2. asked by jessica
3. 860 views
I don't understand this. can you please tell how you got each answer?describe how the graph of each function is related to a
1. 3 answers
2. asked by BreAnne
3. 857 views
Let f(x) be the function 1/x+5. Then the quotientf(6+h)−f(6)/h can be simplified to −1/ah+b for: a= 11 b= I did all the work
1. 2 answers
2. asked by cassie
3. 846 views
A coil of wire of cross-section 0.75 square mm weighs 125g in air and 115g in water. What will be the length of the coil?
1. 1 answer
2. asked by Kushagra
3. 841 views

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