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2012
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Questions Asked on February 19, 2012

A slide 4.1 meters long makes an angle of 35 degrees with the ground. To the nearest tenth of a meter how far above the ground
1. 9 answers
2. asked by Brandon
3. 20,148 views
Assuming equal concentrations, rank these aqueous solutions by their freezing point.?K2CO3, Li3PO4, Sn(ClO3)4, NH4I I tried to
1. 6 answers
2. asked by Eric
3. 10,374 views
Assuming 100% dissociation, calculate the freezing point and boiling point of 3.13 m SnCl4(aq).Tf=? Tb=? My work: SnCl4 with
1. 2 answers
2. asked by Akle
3. 8,907 views
9.10: Reverse ArrayWrite a function that accepts an int array and the array’s size as arguments. The function should create a
1. 3 answers
2. asked by Cheryl
3. 7,328 views
Given that the vapor pressure of water is 17.54 torr at 20 C, calculate the vapor-pressure lowering of aqueous solutions that
1. 1 answer
2. asked by David
3. 7,188 views
the international space station orbits 350 km above earth's surface. earth's radius is about 6370 km.use the pythagorean theorem
1. 4 answers
2. asked by tee
3. 7,128 views
A ball is thrown upward at a speed v0 at an angle of 52.0˚ above the horizontal. It reaches a maximum height of 7.3 m. How high
1. 2 answers
2. asked by Shelby
3. 6,789 views
Assuming equal concentrations, rank these aqueous solutions by their freezing point: LiSO4, Li3PO4, SnCl4, NH4Br.(from highest
1. 7 answers
2. asked by Kylie
3. 6,677 views
A solution of H2SO4(aq) with a molal concentration of 1.94m has a density of 1.119g/mL. What is the molar concentration of this
1. 2 answers
2. asked by Akle
3. 6,341 views
A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?
1. 6 answers
2. asked by Abubakar
3. 6,059 views
A solution is made by mixing 42.0 mL of ethanol, C2H6O, and 58.0 mL of water. Assuming ideal behavior, what is the vapor
1. 4 answers
2. asked by Joy
3. 5,549 views
An airplane starts from rest at the end of a runway andaccelerates at a constant rate. In the first second, the airplane travels
1. 1 answer
2. asked by suri
3. 5,073 views
At t=0 , a particle starts at the origin with a velocity of 6 feet per second and moves along the x-axis in such a way that at
1. 2 answers
2. asked by illy
3. 4,035 views
What is the formula for finding the height of an object located on an inclined plane with a given angle of elevation?
1. 0 answers
2. asked by Brandon
3. 3,865 views
A solution is made by mixing 30.0 mL of ethanol, C2H6O, and 70.0 mL of water. Assuming ideal behavior, what is the vapor
1. 7 answers
2. asked by Lauren
3. 3,809 views
An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to a total solution volume of 2.00 liters. If the molarity of
1. 1 answer
2. asked by Adam
3. 3,736 views
1.) what is the length of the line segment whose endpoints are (1,1) and (3,-3)?2.) what are the coordinates of the midpoint of
1. 7 answers
2. asked by Taylor
3. 3,439 views
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure
1. 5 answers
2. asked by Sarah
3. 3,287 views
Declare a structure whose tag name is Emp and that contains these fields (in the following order): a double field named d, a
1. 3 answers
2. asked by Cheryl
3. 3,037 views
Find a linear equation whose graph is the straight line with the given property. HINT [See Example 2.]Through (2, −3) and (1,
1. 1 answer
2. asked by Rick
3. 2,982 views
The sides of parallelogram 2x+y,3y-2x,5y-8,4x-3 are given in cm.find x and y and the perimeter of the parallelogram
1. 5 answers
2. asked by Maccbath
3. 2,846 views
A solution is made by dissolving 0.500 mol of HF in enough water to make 1.00 L of solution. At 21 C, the osmotic pressure of
1. 5 answers
2. asked by Eric
3. 2,371 views
I just need to know the net ionic equation and balance them. I figured the equation. but the net and balance is harder.Co(NO3)2
1. 1 answer
2. asked by Suey
3. 2,357 views
Given this data in a study on how the rate of a reaction was affected by the concentration of the reactantsInitial Rate, RUN
1. 2 answers
2. asked by elvis
3. 2,350 views
solutions to the problem what four-digit whole number satisfies the following conditons? The sum of the digits is 6; the number
1. 2 answers
2. asked by Frances
3. 2,296 views
a 15gram bullet moving at 300m/s pass through z 2 cm thick sheet of foam and emerges with a speed of 90m/s find average force
1. 1 answer
2. asked by yonas
3. 2,247 views
determine the linear velocity of a point rotating at 15 revolutions per minute at a distance of 3.04 meters from the center of a
1. 1 answer
2. asked by anon
3. 2,235 views
Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right
1. 4 answers
2. asked by What is wrong with it?
3. 2,150 views
In the figure below, the measure of arc AC is 88 degrees if angle ABC is equal to 88 degrees.
1. 3 answers
2. asked by bob
3. 2,106 views
A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6
1. 1 answer
2. asked by Tiffany
3. 2,096 views
Identify the participial phrase in the sentence below.Rising early, I saw the sun come up. A.Rising early B. saw the sun C. come
1. 3 answers
2. asked by Jess
3. 2,072 views
What is the equilibrium partial pressure of water vapor above a mixture of 37.5 g H2O and 62.5 gHOCH2CH2OH at 55 degree C. The
1. 1 answer
2. asked by Nurcan
3. 2,065 views
Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars)
1. 1 answer
2. asked by Nick
3. 1,976 views
A large totem pole in the state of Washington is 100ft tall. At a particular time of day, the totem pole casts a 249ft-long
1. 1 answer
2. asked by Brandon
3. 1,927 views
Assume it costs Microsoft $4,300 to manufacture 7 Xbox 360s and $8,290 to manufacture 14. Obtain the corresponding linear cost
1. 1 answer
2. asked by Amie
3. 1,922 views
reviews the concepts that are important in this problem. A golfer imparts a speed of 35.9 m/s to a ball, and it travels the
1. 2 answers
2. asked by KayLyn
3. 1,892 views
if JKLM is a rectangle if jl = 4x - 12 and MK = x what is the value of x? what is the length of the diagonal?
1. 1 answer
2. asked by yasmine
3. 1,878 views
In a sports league of n teams in which each team plays every other team twice, the total number Nof games to be played is given
1. 3 answers
2. asked by Andrew
3. 1,738 views
The variable cp_arr has been declared as an array of 26 pointers to char. Allocate 26 character values, initialized to the
1. 5 answers
2. asked by Cheryl
3. 1,718 views
How to prepare 100mL of 3% w/w Hydrogen Peroxide from 30% w/w Hydrogen Peroxide?Specific Gravity of 30%w/w Hydrogen Peroxide is
1. 4 answers
2. asked by annie
3. 1,675 views
Five styrofoam balls are suspended from insulating threads.Several experiments are performed on the balls and the
1. 1 answer
2. asked by Daniel
3. 1,673 views
How do you calculate the mass in kilograms of 3.99 liters of acetic acid. The density of this substance is 1.05 g/mL.
1. 2 answers
2. asked by Tina
3. 1,637 views
1.In "Paul's Case," why does Paul go to work early?A. He didn't want to get caught skipping school. B. He liked looking at the
1. 3 answers
2. asked by Nick
3. 1,527 views
Suppose that the weights of airline passenger bags are normally distributed with a mean of 48.08 pounds and a standard deviation
1. 1 answer
2. asked by Joe
3. 1,503 views
During a certain thermodynamic process asample of gas expands and cools, reducing its internal energy by 3690 J, while no heat
1. 2 answers
2. asked by Ivan
3. 1,500 views
After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 35.5 m horizontally from the end
1. 1 answer
2. asked by KayLyn
3. 1,484 views
The RideEm Bicycles factory can produce 140 bicycles in a day at a total cost of $10,200 and it can produce 160 bicycles in a
1. 1 answer
2. asked by Sandie
3. 1,473 views
The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in
1. 1 answer
2. asked by Hannah
3. 1,460 views
what number is equivalent to this expression,(4 x 9 - 13) - 15 divided by 5 x 2 - 1???can someone help me with this.
1. 5 answers
2. asked by nick
3. 1,458 views
1.) what is the length of the line segment whose endpoints are (1,1) and (3,-3)?2.) what are the coordinates of the midpoint of
1. 1 answer
2. asked by Taylor
3. 1,443 views
The Clapeyron-Clausisus Equation is ln(P2/P1) = dHvap/R [(1/T1)-(1/T2)]. Assuming that dHvap doesn't change with the
1. 5 answers
2. asked by isabelle
3. 1,403 views
The "proof" of an alcoholic beverage is twice the volume percent of ethyl alcohol, C2H5OH in water. The density of ethyl alcohol
1. 1 answer
2. asked by Anonymous
3. 1,371 views
Two trains are heading toward each other on the same track with velocities v1 and v2 respectively. The drivers,noticing this
1. 1 answer
2. asked by Makinin
3. 1,355 views
For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be
1. 3 answers
2. asked by elvis
3. 1,349 views
A solution is made by dissolving 0.584 mol of nonelectrolyte solute in 883 g of benzene. Calculate the freezing point and
1. 6 answers
2. asked by Jen
3. 1,320 views
a 2kg block of wood rests on a long table top. a 5 gram bullet moving horizontally with speed of 150m/s is shoot into the block
1. 1 answer
2. asked by yonas
3. 1,295 views
Answer the following questions for a mass that is hanging on a spring and oscillating up and down with simple harmonic motion.
1. 1 answer
2. asked by Jerry
3. 1,289 views
If a fast-moving object strikes you, you'll experience less force of impact if you can ____________________.A) increase the time
1. 1 answer
2. asked by Anonymous
3. 1,280 views
Which statement applies to BOTH the maurya and the Gupta empires?A.Both empires united diverse peoples within their empires.
1. 8 answers
2. asked by ciara
3. 1,257 views
A body of mass 5kg falls from a height of 10m above the ground.what is the kinetic energy of the body just before it hits the
1. 3 answers
2. asked by Ridwan
3. 1,257 views
The half-life of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say
1. 1 answer
2. asked by elvis
3. 1,256 views
Which statement BEST explains why Hunduism is one of the world's most complex repligions?A.Hinduism is very similar to Buddhism
1. 7 answers
2. asked by ciara
3. 1,254 views
Solve the following problem using a method of your choice. A store clerk who is taking inventory in a toy store of bicycles and
1. 1 answer
2. asked by Brittany M.
3. 1,253 views
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and
1. 0 answers
2. asked by janny
3. 1,252 views
•Should the United States combine all the police agencies into one national police organization? Why or why not?•If you must
1. 1 answer
2. asked by jc
3. 1,243 views
Help needed! I'm comparing France and the USA.If France had the Paris vs. Versaille conflict with regards to the city capital.
1. 1 answer
2. asked by annie
3. 1,240 views
Could someone look over this paper before I turn it in? ThanksHint: Pay attention to the units of measure. You may have to
1. 1 answer
2. asked by Debbie
3. 1,224 views
Uranium-238 decays to Lead-206. The half life of Uranium-238 is 4.5 billion years. If you have a 100 g sample. How much sample
1. 4 answers
2. asked by Noah
3. 1,211 views
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure.
1. 1 answer
2. asked by Tracy
3. 1,198 views
The index of refraction for a diamond forred light of wavelength 655 nm is 2.35, while that for blue light of wavelength 437 nm
1. 1 answer
2. asked by Joila
3. 1,197 views
Write all of the following statement(s) that apply to the following polynomial: -5x3 + 2x2 – 7It is a binomial. It cannot be
1. 1 answer
2. asked by latoya
3. 1,178 views
A man with a mass of 62 kg stands up in a 64-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the
1. 0 answers
2. asked by Anonymous
3. 1,177 views
Sketch one face of a simple cubic unit cell of side a for the case when the maximum fraction of the lattice in volume is filled
1. 1 answer
2. asked by ali
3. 1,173 views
change -312 degrees to radian measure in terms of pi
1. 2 answers
2. asked by HELP ME
3. 1,170 views
The cirucumference of a ballon is 75 inches and the diameter is 12 inches what is the volume?Science - Ms. Sue, Saturday,
1. 1 answer
2. asked by Joseph
3. 1,131 views
what is an economic problem with welfare in canada and how can it be solved? I basically need a thesis.
1. 3 answers
2. asked by Labiba
3. 1,124 views
The units of a rate constant for zero, first and second order reactions are given in the textbook. If the time units are
1. 3 answers
2. asked by elvis
3. 1,119 views
The vapor pressure of diethyl ether is 463.57 mm Hg at 25 degrees celsius. How many grams of aspirin C9H8O4, a non volatile
1. 2 answers
2. asked by Hannah
3. 1,116 views
I really need these answers to balance the net ionic equation or make it into one.Cu(NO3)2 (aq) + NaOH (aq) = CuOH (s) +
1. 1 answer
2. asked by Suey
3. 1,099 views
on what website can i find info on things made of the element hafnium:a picture,how it's made, and why it is made with hafnium.
1. 2 answers
2. asked by dylan
3. 1,073 views
Assuming equal concentrations, rank these aqueous solutions by their freezing point: Li2SO4, Li3PO4, SnCl4, NH4Br.(from highest
1. 0 answers
2. asked by Amy
3. 1,068 views
State Dalton’s Postulates? In light of modern knowledge, what are the inaccuracies in Dalton’s Postulates?I know Dalton's
1. 1 answer
2. asked by Lena
3. 1,066 views
A gyroscope of radius 18 cm rotates 35 times per minute. What is the linear velocity at a point on the edge of the gyroscope?
1. 1 answer
2. asked by me
3. 1,060 views
determine the angular velocity if 11.3 revolutions are completed in 3.9 seconds
1. 1 answer
2. asked by Ben
3. 1,040 views
The length of the hypotenuse of a 30-60-90 triangle is 12. Find the perimeter.
1. 1 answer
2. asked by Brandon
3. 1,039 views
15 ml of .325 M NaOH is delivered into a 35 ml HObr solution of unknown concentration.The pH of the final solution is measured
1. 1 answer
2. asked by Jdawg
3. 1,024 views
1. Nitric oxide reacts with bromine gas at elevated temperatures according to the equation,2 NO(g) + Br2(g) = 2 NOBr(g) The
1. 3 answers
2. asked by Hannah
3. 1,012 views
What is the truth value of the sentence "Pv~P"A. True B. False C. Cannot be determined D. Not a sentence
1. 1 answer
2. asked by Mary
3. 1,004 views
I just need to know the net ionic equation and balance them. I figured the equation. but the net and balance is harder.Co(NO3)2
1. 1 answer
2. asked by Ari
3. 1,004 views
Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars)
1. 1 answer
2. asked by Mandie
3. 1,004 views
This number represents the equal number of parts that equal a whole in a fraction.A. Numerator B. Denominator C. Variable D.
1. 2 answers
2. asked by kesha
3. 1,002 views
The half-life of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say
1. 2 answers
2. asked by elvis
3. 973 views
Assume it costs Microsoft $4,300 to manufacture 7 Xbox 360s and $8,290 to manufacture 14. Obtain the corresponding linear cost
1. 0 answers
2. asked by Max
3. 957 views
How do you express 234^789 in scientific notation?Its to big to computer for my graphing calculator Thank You
1. 4 answers
2. asked by Sam I Am
3. 948 views
A vibration platform oscillates up and down with an amplitude of 10.2 cm at a controlled variable frequency. Suppose a small
1. 1 answer
2. asked by Phil
3. 940 views
How would I find the molality of NaCl with the following information?initial temperature= 98degrees celsius final temp=100
1. 2 answers
2. asked by Hannah
3. 917 views
A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?
1. 1 answer
2. asked by Anonymous
3. 909 views
integral from 0 to pi of 9+6cos((pi/25)y)+cos^2((pi/25)y)
1. 0 answers
2. asked by Noor
3. 904 views
knowledge : point (-3,-4)is on the terminal arm of an angel (alpha) in stander position.verify that (sin alpha)2 + (cos alpha )2
1. 1 answer
2. asked by meme
3. 890 views
An edge of a cube is increased by 10%. Find the percent by which the surface area o fa cube has increased?
1. 1 answer
2. asked by Swati
3. 885 views

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