Questions Asked in 2011
Most Popular Questions of 2011

English
Need some advice! What to do the with the class for the first time? I don't know the class and they don't know me. They are not children. The youngest person is 20 and the oldest around 3540 There are 10 of them in the group and they are learning English
asked by tee on February 27, 2011 
freedom similes and metaphors?
I'm stuck on what to write for freedom similes and metaphors? help? Thanks!
asked by Skye on April 3, 2011 
English Check
My Answer: 1. Venture 2. calamity 3. turmoil 4. Flagrant 5. comprehensive 6. rehabilitate 7. fluctuate 8.ponder 9.persevere 10. Conventional We tried to stop Anna from jumping, but her 1)___ disregard of our warnings led to a 2)__ that would change her
asked by ME on September 14, 2011 
physics
Suppose 3 mols of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.19 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume. Find the highest temperature attained by the
asked by david on January 26, 2011 
Math
Does anyone know the answer to the math riddle "Did you hear about..." the answer is 12 words and it's pg 167.
asked by Maddie on December 6, 2011 
English check please help me out
My answers: 1. Suffice 2. Sinister 3. Intricate 4. Incoherent 5. Implausible 6. Degenerate 7. Intercede 8. Sanctuary 9. Vulnerable 10. Scrutiny One summer, Nan worked in a factory with an employee who had recently arrived from France, a soft spoken young
asked by ME on October 6, 2011 
vocab
The living room looked immaculate except for a lump under the carpet, an gaunt
asked by me on October 19, 2011 
English check please I've corrected it again
. Dispatch 2. Orient 3. Enigma 4. Discern 5. Enhance 6. Attribute 7. Nocturnal 8. Exemplify 9. Mobile 10. Attest Animals Possess sensory powers that humans lack. Homing pigeons fly with great speed and accuracy when 1)___(e)d with messages to faraway
asked by ME on September 14, 2011 
Calculus
A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s^2.) a)Find the distance (in meters) of the stone above ground level at time t. b)With what velocity does it strike the ground? (Round your answer to
asked by John on November 13, 2011 
geometry
What happened when two fruit companies merged?
asked by richard on November 16, 2011 
Physics Honors
A lovesick lad wants to throw a bag of candy and love notes into the open window of his girlfriend's bedroom 10 m above. Assuming it just reaches the window, he throws the love gifts at 60° to the ground: a) At what velocity should he throw the bag? b)
asked by Jacqueline on December 2, 2011 
physic
Superman must stop a 120km/h train in 150m to keep it from hitting a stalled car on the tracks.If the train's mass is 3.6x10^5kg,how much force must he exert?Compare to the weight of the train (give as%).How much force does the train exerts on Superman?
asked by noah on July 2, 2011 
math
jose said all of the multiples of 8 are also multiples of 2. jamila said that all of the multiples of 8 are also multiples of 4. who is correct. Explain
asked by Alex on November 16, 2011 
Comp 155
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting envent, musical performance, or television show. Bold each adverb. Underline each adjective. This is what I wrote but not sure if I have all the adverbs and
asked by Tracy on May 1, 2011 
COMM 155
use at least 5 adverbs and 5 adjectives to write a brief review of a movie bold each adverb underline each adjective use at least 3 comparatives and 3 superlatives Twilight is romantic, intriguing, and full of subtle humor. It is a modern day love story of
asked by Misty on January 13, 2011 
COM/155
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. Bold each adverb. Underline each adjective. Compare the event to one or more similar events. When comparing, use at
asked by dan on January 15, 2011 
java/programming
ask the user to enter his or her birthday in the MM/DD/YYYY format and output the number of days between the birthday and today. This gives the person's age in days.
asked by maria on March 7, 2011 
english
which of the following is an example of an adverbial clause fragment? 1.Wherever there is a chance for a fabulous meal,2. who described the book as a compelling masterpiece or 3.that the poet choose words carefuly to convey a particular tone. I think it is
asked by ron on December 3, 2011 
English grammar
I need to identify the subject, verb, and any complements (direct object, indirect object, subject complement, objective complement) and the prepositional phrases of the following sentances. I thought i had them more or less right but when i turned them in
asked by Eddie on July 5, 2011 
Business
I am trying to write a 1500 words review of two articles that are discussing ethical perspectives or business ethics for two countries. Each article must contain info. on a different foreign country on a different continent; for example, if the first
asked by kim on January 16, 2011 
Chemistry
Write a balanced net ionic equation (include physical states) for the following reaction: Fe(NO3)3(aq) + LiOH(aq) → LiNO3(aq) + Fe(OH)3(s)
asked by Emily on June 27, 2011 
American Goverment
IRS Federal Agency. List the URL address. Considering the informatioin on the website, briefly describe the mission of the agency. What policy choices might bureaucrats from the agency advocate in order to expand the activities that fit their mission?
asked by Jinx on February 11, 2011 
english
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events. When comparing,
asked by mike on August 14, 2011 
phy
A blue ball is thrown upward with an initial speed of 20.6 m/s, from a height of 0.8 meters above the ground. 2.5 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.2 m/s from a height of 23.7 meters above the
asked by a on September 13, 2011 
math
Michael has a total of $2000 on deposit with two saving institutions. One pays interest at the rate of 6% per year whereas the other pays interest at a rate of 8% per year. If Michael earned a total of $144 in interest during a single year, how much did he
asked by SUBSTITUTION METHOD on May 16, 2011 
calculus
a boat leaves a dock at 2:00 pm and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 3:00 pm. at what time were the two boats closest together
asked by LALA on November 14, 2011 
physics
A 0.50 kilogram ball is thrown vertically upward with an initial kinetic energy of 25 joules. Approximately how high will the ball rise ?
asked by lucy on April 30, 2011 
geometry
Find the image of O(–2, –1) after two reflections, first across the line y = –5, and then across the line x = 1. (1 point)
asked by Cindy on December 16, 2011 
Chemistry
FeSCN2+ > Fe3+ + SCN Solution is initially dark red. If some Ag+ is added to form AgSCN. what happens to position of equilibrium? what happens ot the color?
asked by Grace on February 8, 2011 
physics
A bike first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the total distance traveled by the bike?
asked by lindsey on September 5, 2011 
physics
You are traveling on an airplane. The velocity of the plane with respect to the air is 180 m/s due east. The velocity of the air with respect to the ground is 40 m/s at an angle of 30° west of due north. 1)What is the speed of the plane with respect to
asked by aaa on September 17, 2011 
English; conmas
Where should commas be placed? Combine flour shortening pecans and cold water to make a tasty pie crust.
asked by Mandy on November 16, 2011 
Chemistry
Part A Calculate the standard enthalpy change for the reaction 2A+B >2C +2D Use the following data: Substance Delta H(kJ/mol) A 263 B 391 C +203 D 523 Express your answer in kilojoules. MY ANSWER FOR PART A: Delta H =277 kJ PART BTHIS ONE I NEED
asked by tina on June 16, 2011 
math
A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft, and the distance around should be no more than 380 ft. Write a system of inequalities that models the possible dimensions of the garden.
asked by Jane on December 29, 2011 
Chemistry
For Mn3+, write an equation that shows how the cation acts as an acid.
asked by Ari on February 12, 2011 
Math/ Number sense
Use the numbers shown. Make the sum of the numbers across equal the sum of the number down. 7 5 1 9 3
asked by Harry on November 29, 2011 
University Chemistry (first year)
I'm working on a first year chemistry lab where we synthesized alum from alunimini foil and I'm doing the report and one of the questions is as follows: Based on your findings, what volume of water can be cleared of suspended solids by one beverage can
asked by clam on October 17, 2011 
Chemistry
Many power plants produce energy by burning carbonbased fuels, which also produces CO2. CO2 is a greenhouse gas, so overproduction can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2 (g)
asked by Harold on January 27, 2011 
physics
A 3.1kilogram gun initially at rest is free to move. When a 0.015kilogram bullet leaves the gun with a speed of 500. meters per second, what is the speed of the gun?
asked by ashley  HELP PLEASEE!!! on May 7, 2011 
Calculus (urgent!!)
A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the
asked by Catherine on April 15, 2011 
chemistry
Consider the reaction, C2H4 (g) + H2 (g) C2H6 (g) where 137kJ of heat is released. How many kilojoules are released when 55.3g of C2H4 reacts?
asked by Sandy on July 10, 2011 
Math
The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is incre ased by 3/20. Find the original fraction. Pls include solution and workings thx :)
asked by Ghiffari on October 24, 2011 
math
a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground for the fifth time
asked by Melissa on December 17, 2011 
statistics
72% working women use computers choose 5 at random whats the probility at least 1 does not use a computer whats the probility that all 5 use a computer
asked by max on September 17, 2011 
English check please help me out
My answers: 1. Venture 2. Calamity 3. Rehabilitate 4. Persevere 5. Conventional 6. Flagrant 7. Ponder 8. Comprehensive 9. Fluctuate 10. Turmoil 12 The time my cousin (e)d skydiving, the result was a ___. Her parachute didn't open, and she was injured so
asked by ME on September 14, 2011 
geometry
Supply the missing reasons to complete the proof Given: B congruent E and BC congruent to EC Prove: AC congruent to DC
asked by Ryan on November 27, 2011 
Physics Help
A small, 200 g cart is moving at 1.50 m/s on an air track when it collides with a larger, 2.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. Q: What is the speed of the large cart after the collision? How do you set this up?
asked by Cat21 on August 6, 2011 
Spanish
doy a la profesora los libros de español. Amelia pregunta a nosotras si queremos ir al cine. El empleado busca trabajo a sus primas en el almacén. Julio quiere traer un televisor nuevo a sus padres. Los clientes dicen a nosotros que todo está muy caro.
asked by Anonymous on September 22, 2011 
science
Calculating A sample of barium nitrate is placed into a jar containing water. The mass of the barium nitrate sample is 27 g. Assume the water is at 20 ºC and that the resulting barium nitrate solution is saturated. What mass of water is present in the
asked by diane on December 21, 2011 
can you please look over my answers? clauses
Can you please look over the answers that I have for the different clause questions? Thanks ahead of time! Ohh, & Ssubject, DOdirect object, PNpredicate noun, OPobject of preposition. Thank you! [What I wanted to do] was to finish my work. S The
asked by Amy on December 11, 2011 
Math
How did the Hunter get hurt while benind over to study some tracks? Algebra with Pizzazz! pg 123 OBJECTIVE: to divide a polynomial by a binomial EX: (x^2+8x+150/(x+5)
asked by k on January 2, 2011 
chemistry
prepare M/20 solution of oxalic acid. Find out the molarity and strength in gram per litre of the given solution of potassium permanganate with the help of the prepared solution of oxalic acid
asked by sidd on April 5, 2011 
physics
the tension in the wire is decreased by 19%. The percentage decrease in the frequency will be?
asked by sagar patil on April 22, 2011 
Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 364 N. (Assume up and to the right as positive directions.)(F1 is 10degrees and F2 is 30degrees) (a) What is the resultant of these two
asked by Dani on May 3, 2011 
chemistry
An unknown metal is found to have a density of 19.300 g/cm^3 and to crystallize in a bodycentered cubic lattice. The edge of the unit cell is found to be 0.31627 nm. Calculate the atomic mass of the metal. Im not sure how to approach this problem...when i
asked by sam on January 24, 2011 
geometry
Martin drew a pair of perpendicular lines and a pair of parallel lines. Which of these statements best compares the pairs of perpendicular and parallel lines? Answer A: Perpendicular and parallel lines always have a common endpoint. B: Perpendicular and
asked by Sam on September 25, 2011 
PHYSICAL SCIENCE PLEASE HELP REALLY APPRECIATE IT!
In the reaction between bromine and sodium, a bromine atom gains an electron. What ion is formed? Is the bromine oxidized, or is it reduced? Thank You ^_^
asked by Rachael on December 14, 2011 
math
Mr.Shea saved $2,500 in April. His monthly salary is Twice the amount he saved in April. In May, he saved a certain amount of money.He spent $4,200 more than the amount he saved. How much did he save in May.
asked by heidi on December 7, 2011 
pysics
A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and
asked by steve on October 4, 2011 
physics
a pet truck is moving at 25m/s north, a dog inside moves at 1.75 m/s at angle 35 degrees east of north. What is the velocity of the dog relative to the road?
asked by anna on November 13, 2011 
Physics
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.5 m diameter and a mass of 250 kg. Its
asked by falcon306 on July 23, 2011 
math
The derivative of f(x) = x^4/3  x^5/5 attains its maximum value at x =
asked by Ann on December 27, 2011 
physics
A 40 g marble moving at 2.3 m/s strikes a 29 g marble at rest. Assume the collision is perfectly elastic and the marbles collide headon. What is the speed of the first marble immediately after the collision? What is the speed of the second marble
asked by CO2136 on August 10, 2011 
Calculus
A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 100 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery
asked by Anonymous on November 1, 2011 
physics
if a car generates 18 hp when traveling at a steady 88 km/h, what must be the average force exerted on the car due to friction and air resistance
asked by eli on December 9, 2011 
Physics
The centers of a 15 kg lead ball and a 140 g lead ball are separated by 8.0 cm. What gravitational force does each exert on the other? Answer: 2.2×10^−8 N Now: What is the ratio of this gravitational force to the weight of the 140 g ball? I don't know
asked by falcon306 on July 23, 2011 
Calc
If a rock is thrown upward on the planet Mars with a velocity of 17 m/s, its height (in meters) after t seconds is given by H = 17t − 1.86t^2. (a) Find the velocity of the rock after one second. (b) Find the velocity of the rock when t = a. (c) When will
asked by Katrina on October 17, 2011 
physics
Determine the resulting temperature when 150g of ice at 0°C is mixed with 300g of water at 50°C
asked by aj on March 9, 2011 
arithmetic
The initial term of an arithmetic sequence is 5. The eleventh term is 125. what is the common difference of the arithmetic sequence?
asked by Jane on October 25, 2011 
physics
when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what is the force constant of the spring. B) if the 2.50 kg object is removed how far will the spring strecth if a 1.25 kg block is
asked by joe on November 6, 2011 
physics
A 53.5 N object is in free fall. What is the magnitude of the net force which acts on the object? Answer in units of N What is the magnitude of the net force when the object encounters 15.4 N of air resistance? Answer in units of N What is the magnitude of
asked by amanda on October 20, 2011 
Physics
Hot air balloons float in the air because of the difference in density between cold and hot air. In this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. To do this, use the following variables
asked by Jenny on July 13, 2011 
Chemistry
It turns out that the Van Dar Waals constant b is equal to four times the total volume actually occupied by the molecules of a mole of gas. Using this figure, calculate the fraction of the volume in a container actually occupied by Ar atoms: a) at STP b)
asked by Anonymous on January 9, 2011 
Physic
A 3.5 kg block is pushed along a horizontal floor by a force of magnitude 15 N at an angle è = 40° with the horizontal. The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes of (a) the frictional force on
asked by Don on September 28, 2011 
chemistry
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy? SiO2(s) + 4 HF(g) → SiF4(g) + 2 H2O(l), ΔH°rxn = 184 kJ
asked by Amber on June 14, 2011 
Chemistry
Explain how the calculated molarity of the potassium permanganate would be affected by each of the following experimental errors. In each case, you must also state if the calculated molarity is higher or lower than the actual morality. a) Some sodium
asked by 4B on December 1, 2011 
Physics
A student initially at rest on a frictionless frozen pond throws a 1 kg hammer in one direction. After the throw the hammer moves off in one direction while the student moves off in the other direction. Which of the following correctly describes the above
asked by Mae on November 14, 2011 
physics
What pressure difference is required between the ends of a 2.0long, 1.0diameter horizontal tube for 40 water to flow through it at an average speed of 4.0 ? I know we have to find delta P, but i'm stuck on how to do that. Help would be great
asked by Liz on April 12, 2011 
Chemistry
If you have 320.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.
asked by Ryan on October 18, 2011 
Math
Suzanne wants to put a fence around her square garden. If the garden covers an area of 64 ft2, how many feet of fencing does she need?
asked by Sue on February 28, 2011 
Math
Whom should you see at the bank if you need to borrow money?
asked by Alisha on April 13, 2011 
physics
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 35 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground. 1)What
asked by aaa on September 17, 2011 
math
22. Your class hopes to collect at least 325 cans of food for the annual food drive. There were 135 cans donated the first week and 89 more the second week. a. Write an inequality that describes this situation. Let c represent the number of cans of food
asked by ooooo on November 9, 2011 
science
What is the magnitude of g at a height above Earth's surface where free fall acceleration equals 6.5m/s^2?
asked by Jessika on December 6, 2011 
physics emergency
m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with
asked by mary on November 4, 2011 
physics
Two cars leave the same point at the same time, each travelling at the same constant speed and each having the same mass. The first car drives directly east, while the second car heads directly north. If the centre of mass of the twocar system is
asked by john on November 8, 2011 
math
What might you have if you don't feel well?
asked by lolololol on January 15, 2011 
Chemistry
(a) Calculate the molarity of a solution that contains 0.175 mol ZnCl2 in exactly 150 mL of solution. (b) How many moles of HCl are present in 35.0 mL of a 4.50 M solution of nitric acid? (c) How many milliliters of 6.00 MNaOH solution are needed to
asked by Anon on October 31, 2011 
physics
A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 1/160 of its mass as exhaust gas and has an acceleration of 15.1 m/s^2.What is the speed v_gas of the exhaust gas relative to the rocket?
asked by paul on November 14, 2011 
math
Find two numbers the exact answer is between. 3 X 567
asked by andrew on October 5, 2011 
business
Rocky Mountain Tire Center sells 20,000 go cart tires per year. The ordering cost for each tire is $40, and the holding cost is 20% of the purchase price of the tires per year. The purchase price is $20 per tire if fewer than 500 tires are ordered, $18 per
asked by Gin on March 30, 2011 
Science
Use the terms atom and element to explain what makes silver and gold different.
asked by Carlos PLEASE on October 26, 2011 
Math Trig Please help!
At one time, Maple Leaf Village (which no longer exists) had North America’s largest Ferris wheel. The Ferris wheel had a diameter of 56 m, and one revolution took 2.5 min to complete. Riders could see Niagara Falls if they were higher than 50 m above
asked by linda on December 1, 2011 
Calculus Please Help
Let f(x)=e^(2x)kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the ycoordinate of
asked by Eva on April 6, 2011 
Math: Trig
to determine the height of a pole across a road, Justin takes two measurments. he stands at Point A directly across from the bass of the pole and determines that the angle of elevation to the top of the pole is 15.3 degrees. he then walks 30m parallel to
asked by Frany on December 11, 2011 
math
what is the answer to What Do You Get if a Bunch of Bad Guys Fall in the Ocean?
asked by jeremy on April 25, 2011 
College Chemistry
Write formation reactions for the following. (You must include the states of matter for each atom or compound) A. Ca(NO3)2 (s) B. CH3OH (l) C. NaClO4(s)
asked by Bekah on October 25, 2011 
Operations Management
Joe Henry's machine shop uses 2,500 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. the following information is known about the brackets. annual demand 2,500 holding cost per bracket per year $1.50 order
asked by Jeff on July 6, 2011 
Chemistry
For this picnic, you need to feed at least 300 people. If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively? hot dogs= 10, buns=8
asked by Anonymous on January 31, 2011 
cheistry
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.
asked by savannah on November 17, 2011