Questions Asked on
October 11, 2012

Math
A certain computer can perform 10 to the 5th power calculations per second. How many calculations can it perform in 10 seconds?
asked by Larry 
Physics
A 60kg skier starts from rest at a height of 20m above the end of a skijump and leaves the ramp at an angle of 28 degrees. Neglet air resistance and assume the ramp is frictionless. A) What is the max height (h) of his jump above the end of the ramp B)If
asked by Guy 
mathalgebra 2
What are the solutions of the quadratic equation? 2x2 – 16x + 32 = 0
asked by kendra 
math
If there is 1/6 of a cake and Mitchell only wants 3/12 of it, how much of the cake does he want
asked by Sally 
physics
A 5.84 box sits on a ramp that is inclined at 35.2 above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.27. What horizontal force is required to move the box up the incline with a constant acceleration of 4.30 ?
asked by carol 
Physics. PLEASE HELP!
two blocks of masses m1 and m2 (m1>m2) are placed on a frictionless table in contact with each other. A horizontal force of magnitude F is applied to the block of mass m1. if P is the magnitude of the contact force between the blocks, what are the net
asked by Jack 
Chemistry
The molar enthalpy of combustion of glucose is 2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb
asked by Kyle 
English Literature
What is ironic about the rioters' wish to kill Death? A.Death is the one who seeks people to kill. B.The rioters should be concerned about each other's greed. C.The rioters believe they can be successful. D. Death and the rioters are thieves. I think the
asked by Anon 
Chemistry
Calculate the concentrations of all species in a 1.41 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. Na^+ = 2.82M SO3^2 = 1.40M HSO3^ = 0.00047M H2SO3 = OH^ = H^+ = I have
asked by Chris 
Math Bar graphs
Which would be the best way to display the data—a bar graph, a histogram, or a line graph? I think a bar graph because it is more accurate. please help and tell me why you chose the one you chose.
asked by Moby 
CIS
Draw a flowchart or write pseudocode to represent the logic of a program that allows the user to enter a value. The program multiplies the value by 10 and outputs the result.
asked by Sonya 
chemistry  flame test
Did the nitrate ion effect the color emission of the solution ? how did you decide ? my answer: No , because The nitrate ion is the oxidizing agent in the compound without it you could not burn the chemicals and you could not produce a spectrum so there
asked by Maria 
Physics
A swimmer can swim in still water at a speed of 9.31 m/s. He intends to swim directly across a river that has a downstream current of 4.35 m/s. a) How many degrees from straight across the river should he head? Let upstream be a positive angle. Answer in
asked by Diego 
Physics
Two cars pass each other traveling at the same speed. One car has a constant velocity of 18.0 m/s east. The other car has a constant acceleration of 3.00 m/s^2, west. How much time will have elapsed until the cars are 128 m apart?
asked by Alex 
Physics
a 96 kg clock initially at rest on a horizontal floor requires a 605 N horizontal force to set it in motion. After the clock is in motion a horizontal force of 547 N keeps it moving with a constant velocity. the acceleration of gravity is 9.81 m/s2 find
asked by Susan 
Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
asked by Angela 
physics
a ramp is 2.8 m long and 1.2 m high. how much power is needed to push a box up a ramp in 4.6 s with a force of 96 N?
asked by breamontri 
physics
The bunny is initially hopping east at 7 m/s when it first sees the fox. Over the next half second the bunny changes its velocity to west at 12 m/s and escapes. What was the bunny's average acceleration (magnitude and direction) during this halfsecond
asked by Nellie 
chemistry
How does the bond that forms between Na and Cl differ from a bond that forms between N and Cl?
asked by Boo Boo 
Math
Ramundus is making a xylophone. So far, he has bars that are 1 3/4 feet 1 7/12 feet and 1 2/3 feet long. What is the length of the longest bar 3/4? Alana practiced dancing for 11/4 hours on Monday 19/8 hours on Wednesday and 2 3/5 hours on Friday. On which
asked by Jerald 
Math
Barone’s Italian Restaurant advertises that its customers are much happier than the customers of its main competitors. The claim is based on the results of a customer satisfaction survey Which statement best describes why the graph is misleading?
asked by Lily 
physics
determine the tension in each cable below. draw a force diagram for the system before solving the problem. Case A ball suspended on one cable Case B ball suspended on by two cables
asked by Madison 
physic
A charge of 2.73 μC is fixed in place. From a horizontal distance of 0.0465 m, a particle of mass 9.50 x 103 kg and charge 9.56 μC is fired with an initial speed of 97.2 m/s directly toward the fixed charge. What is the distance of closest approach?
asked by derek 
PHYSICS
A factory worker pushes a 30.7 crate a distance of 4.0 along a level floor at constant velocity by pushing downward at an angle of 31 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26. What magnitude of force
asked by HANNE 
physics
A 0.70 kg block along a horizontal track has a speed of 1.10 m/s immediately before colliding with a light spring of force constant 3.50 N/m located at the end of the track. (a) What is the spring’s maximum compression if the track is frictionless?
asked by Anonymous 
physics
An airplane of mass 1.6 x 10^4 kg is moving at 58 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.0 x 10^4 N. If the force exerted by air resistance on the body of the airplane has a magnitude of
asked by Amy 
physics
Suppose that a senior driving a Pontiac zooms out of a darkened tunnel at 39.4 m/s. She is momentarily blinded by the sunshine. When she recovers, she sees that she is fast overtaking a camper ahead in her lane moving at the slower speed of 12.9 m/s. She
asked by Anonymous 
physics
please help :/ Three charges are fixed to an xy coordinate system. A charge of +25C is on the y axis at y = +2.7 m. A charge of 16C is at the origin. Lastly, a charge of +66C is on the x axis at x = +2.7 m. Determine (a) the magnitude and (b) direction of
asked by antonio 
science
A point object is acted upon by forces of 4N, 5N and 6N is in equilibrium. IF=f the 6N force is removed, what is the resultant force on the object now? I really want to know how tow find relationship between 3 forces, and is there anything to do with cos
asked by liam 
Chem Hmwrk
Iodine can be prepared by bubbling chlorine gas through an aqueous solution of sodium iodide: 2NaI(aq) + Cl2(g) → I2(s) + 2NaCl(aq) How many grams of sodium iodide are required to produce 98 g of iodine?
asked by Jon 
Stats
Let Y be a random number between 0 and 1 produced by the idealized uniform random number generator with density curve pictured in the following figure: P(
asked by George 
Calculus
The length of rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 3cm/s. When the length is 20cm and the width is 10cm, how fast is the area of the rectangle increasing?
asked by Chelle 
English
I need a thesis statement for the story, "Rikki Tikki Tavi" by Rudyard Kipling. I thought about using " (In) This short story, "Rikki Tikki Tavi, by Rudyard Kipling, tells of the conflict of Rikki Tikki and two cobras, as he tries to defend Teddy."
asked by Abby 
Physics
A 67kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 840 N. What is the acceleration of the elevator?
asked by Anonymous 
physics
A 5.84kg box sits on a ramp that is inclined at 35.2degrees above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.27. What horizontal force is required to move the box up the incline with a constant acceleration of
asked by helpless 
physics
A daring stunt woman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 12.5 m/s, and the woman is initially 1.31 m above the level of the saddle. How long is she in the air? The
asked by Asi 
physics
Prove that for an earth satellite,the ratio of its velocity at apogee to its velocity at perigee is the inverse ratio of its distances from apogee and perigee.
asked by veera 
calculus
A fence 8 feet tall stands on level ground and runs parallel to a tall building. If the fence is 1 foot from the building, find the shortest ladder that will extend from the ground over the fence to the wall of the building.
asked by Erica 
chemistry
an oxygen storage tank contains 12l at 25 degrees C and 3 atm.After a 4 L canister of oxygen at 25 degrees C and 3atm is emptied into the ,what do you expect the temperature of the tank to be
asked by linda 
Chemistry
Calculate the concentrations of all species in a 1.41 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. Na^+ = 2.82M SO3^2 = 1.40M HSO3^ = 0.00047M H2SO3 = OH^ = H^+ = I have
asked by Chris 
physics
You drop a ball from a height of 1.9m , and it bounces back to a height of 1.3m . a)What fraction of its initial energy is lost during the bounce? b)What is the ball's speed just before the bounce?
asked by Andrew 
Math
Hudson is already 40 miles away from home on his drive back to college. He is driving 65 mi/hr. Write an equation that models the total distance d travelled after hours h. What is the graph of the equation. When Phil started his new job, he owed the
asked by Maia 
Physics
Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall in the world, dropping 979 m (3212 ft). Assume that it takes 14 s for the water to fall from the lip of the falls to the river below. If the water lands 60 m from the base of the
asked by Nellie 
odu
A toboggan approaches a snowy hill moving at 12.9 . The coefficients of static and kinetic friction between the snow and the toboggan are 0.390 and 0.290, respectively, and the hill slopes upward at 44.0 above the horizontal.
asked by ty 
Chemistry
The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.30 pounds of methane (fuel value is 11.97 kcal/g) is used to heat 122.0 kg of water at an initial
asked by Brittany 
math
Please solve this word problem, It will take at least 360 points for Kiko"s team to win the math contest. The scores are 94,82, and 87, but one of Kiko's teammates lost 2 of those points for an incomplete answer. How many points must Kiko earn for her team
asked by Ann 
physics
block A (mass 2.04kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 3.00kg ). The coefficient of kinetic friction between block A and the tabletop is 0.215. After the blocks
asked by george 
Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
asked by Angela 
chemistry
Calculate the number of moles of Cl atoms in 1.81×10e24 formula units of magnesium chloride,MgCl2.
asked by troy 
Chem
Ethanol, C2H6O, is very soluble in water. Describe how water dissolved ethanol.
asked by Stac 
chemistry
what is the chemical name and lewis structure of NO3 2
asked by Amanda 
chem
Ethanol, C2H6O, is very soluble in water. Describe how water dissolved ethanol.
asked by stacy 
physics
trying to study but stuck with this one. Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 4.62 x 106 kg. The gravitational force that each sphere exerts on the other is balanced by the electric force.
asked by alex 
math
Video rental Store A charges a membership fee of $25 and $2 for each movie rental. Video rental store b charges a membership fee of $10 and $2.50 for each movie. Find the number of movies rentals for which both stores' charges are the same
asked by Amy 
Physics
You will fire the spring gun 3 times from the first detent and measure the change in height of the (pendulum + ball) for each shot. Write the equation for the change in height of the first shot.
asked by Natalie 
Physics
A 63 kg student is standing atop a spring in an elevator that is accelerating upward at 2.5 m/s^2 . The spring constant is 2700 N/m. By how much is the spring compressed?
asked by Guy 
physics
A science student is riding on a flatcar of a train traveling along a straight, horizontal track at a constant speed of 12.8 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 67.0° with the horizontal and
asked by sedef 
trigonometry
a flagpole 25 feet high stands on the top of a tower, which is 105 feet high. at what distance from the base of the tower will the flagpole subtend an angle of 3 degrees, 20 minutes?
asked by Cathy 
science
A sample containing .347 moles of an element has a mass of 39.00 g. What is the element?
asked by Ah 
science
The volume of a 500 g sealed packet is 350 cm cube . Will the packet float or sink in water if density of water is 1 g cm raised to 3 ? What will be the mass of water displaced by this packet ?
asked by ujjval 
math
JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (4n+n)+7=52 5n+7=52 5n+77=52 5n=45 5n/5=45/9 n=9
asked by JR 
Math
Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!.
asked by Candice 
Physics
Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.
asked by Christian 
trigonometry
verify the identity: (cosx/1+sinx) + (1+sinx/cosx) = 2secx
asked by mikey 
Math
slope and y intercept form of these two problems? Y5=1/3(x9) 2y+6a4x=0
asked by Carly 
college geometry
if triangle mnp approximate triangle srt with proportionality factor k, show that if ma and sb are altitudes of the given triangles, then ma = ksb in
asked by lara 
finance
You buy an 8% annual coupon bond from CARRIS Inc. that has a 25 year maturity and a required return of 12%. The par value is $1,000. You sell the bond five years later when the required return is 10%. What is the beginning price of the bond when it is
asked by Jill 
Math
Rudulpho bought a set of wrenches to work on his car. He bought the following sizes 7/8 3/8 3/4 and 1/2. he wants to hang these on his garage wall in order from greatest to least. Which list shows the order in which he should have the wrenches A.7/8 3/8
asked by Jerald 
chemistry chemistry
If a flame on the candle burns red , how does energy of that flame compare to that of the Bunsen burner flame ? and why ? ans:The Bunsen burner flame has higher temperature than candle’s flame . Because flame of candle emit red ,and red has the least
asked by Maria 
physics
A rocket moves upward, starting from rest with an acceleration of 32.0 m/s2 for 3.27 s. It runs out of fuel at the end of the 3.27 s but does not stop. How high does it rise above the ground?
asked by Apple 
Chemistry
If 100J are added ti 20g of water at 30degrees Celsius, what will be the final temperature of the water
asked by S. Sook 
Chem
Balance C3H6 + O2 > H2O + CO2
asked by Stacy 
Writing
Can you proofread this writing? I also need a good title. Theme, what comes to mind when you hear this word? When I hear this word, I think of the overall meaning or lesson of a story. In the story, “Two Kinds, by Amy Tan there were many themes that fit
asked by Tatyiana 
Christmas Island
I need to know more about christmas island. I have research and i not getting any info on education and interesting fact in case want to live there permanent. I know about the crabs but cant find info if they bite. please help me find info, thanks.
asked by #####rena 
physics
help! Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.54 m from it. Find the ratio qB/qA of the charges.
asked by alex 
english 9 th
2. Choose a story element, such as the use of a symmetrical plot, a certain kind of narrator, or irony, and explain how and why it is used in one of the stories in the unit.
asked by Anonymous 
statistics
7. Give and interpret the 95% confidence interval for the hours of sleep a student gets
asked by Anonymous 
Math (Probability)
An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)
asked by AngelG 
universsity of karachi
A graduate class consist of six students. what is the probability that exactly three of then are born in either in april or in october?
asked by sania 
cost and management accounting
Choice any company and explain the five ways of applying cost and management in company process system.
asked by columbus 
Chemistry
The molar enthalpy of combustion of glucose is 2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb
asked by Kyle 
Chemistry
The molar enthalpy of combustion of glucose is 2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb
asked by Kyle 
physics
The maximum speed of a child on a swing is 4.90 m/s. The child's height above the ground is 0.525 m at the lowest point in his motion. How high above the ground is he at his highest point?
asked by Grace 
Chem Percent Yield
When HgO is heated, it decomposes into elemental mercury and diatomic oxygen gas. If 42.9 g of Hg is obtained from 70.1 g of the mercuric oxide, what is the percent yield of the reaction?
asked by Lara 
Economics
You have opened your own word processing service. You have already bought a special computer needed for word processing and paid $5,000 for it. However, due to the cost changes in the computer industry, the current price of an equivalent machine is $2,500.
asked by Damone 
child day care
1. For your day care center, you'll have to develop policies to share with the parents concerning all of the following issues except A. staff vacations. B. hours of operation. C. guidance practices. D. enrollment.
asked by tin 
Math (Probability)
An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)
asked by AngelG 
math
Katrina is having new curtains made for a window in her room. she needs 1.56m of fabric. fabric is sold lengths of whole metres and tenths of metres. how much fabric should she buy? why?
asked by susan 
science
X needs to find the density of a cube. Each side of the cube measures 3 cm and the mass of the cube is 12 g. What is the approximate density of the cube.
asked by jim 
physics
This is the situation I have been given: You are given three capacitors, one with a capacitance of 0.025 microfarads, another with a capacitance of 0.05 micro farads, and the third with a capacitance of 0.015 microfarads. Using only these capacitors,
asked by Rachel 
Chemistry
Hi I need with with a prelab calculation for a Hydrate Crystal lab and I am so confused @_@ You don't really need to solve it if you don't want to, I just need an example on how to do these problems 1) Find the mass of the water that evaporated upon
asked by Sira 
US and Global Economics
(This homework question was removed due to a copyright claim submitted by K12 Inc.) Please help?
asked by BreAnne 
Maths Percentage (6th Grade)
David has $5 in his wallet. This was 10% of the amount that he received from his mother. Find the total amount of money that David received from his mother. 35% of the number of books Ibrahim owns are fiction boos, find: a.) the total number of books he
asked by Sam 
College Math
Simplify the algebraic expression 3xz + 4xy – 2yz + xy + 5yz – 9xz and evaluate it for x = 3, y = 2, z = 5. Identify the variables, constants, and coefficients in the simplified expression.
asked by Richard D 
Physical Science
After a sled has passed several times over a snowy path on a hill, the grass or dirt under the snow may begin to show through where the sled has traveled. Why?
asked by Patrice 
Enviromental Science
What effect could an uncontrollable grass carp population have on the energy pyramid of an lake environment?
asked by Michaela 
Chemistry
How do you do this problem? Calcuate the mass of CuCl2*5H2O required for preparing 400mL solution that of .25M in chloride ions.
asked by Tiffany 
Stats
Calculate the expected value and standard deviation of X, the number of on the job accidents: Accidents 0,1 2 Probability .5, ?, .2 P(X=1) = E(x) = µx = Standard deviation =
asked by George 
Basic algebra
The length of a rectangle is 9 feet longer than twice the width. If the perimeter is 90 feet, find the length and width of the rectangle?
asked by Anonymous 
Algebra2
Determine if the given relation is function or not. Give its domain and range. 16. (1, 2), (1, 3), (1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)
asked by Leaaf 
Chem
In carbon monoxide poisoning the hemoglobin is incapable of transporting oxygen to the tissues. How does oxygen get delivered to the cells when the patient is put into a hyperbaric chamber?
asked by Stacy 
Chem Hmwrk
For the reaction HCl + AgNO3 → ,write the balanced formula equation
asked by Jena 
College Math
Simplify the algebraic expression 3z3 – 5x2 + 2 – 4y2 + 6x2 – 4z3 – 7y + 12 – 2x and evaluate it for x = 2, y = 3, z = 4. Identify the variables, constants, and coefficients in the simplified expression.
asked by Richard D 
MATH 63
DRAW A RECTANGLE 24 UNITS LONG BY 12 UNITS WIDE
asked by Anonymous 
matn
JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (4n+n)+7=52 5n+7=52 5n+77=52 5n=45 5n/5=45/9 n=9
asked by JR 
chem
To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?
asked by stac 
math
How can knowing the multiplication properties help you evaluate 5 * ( 20 * 63 )
asked by lorenzo 
Science
When a car slams on its brakes what provides friction that helps the car stop? What kind of energy is produced?
asked by Sam 
Math
Which of the following statements is true? A. 1/2>3/4 B.1/27/8 D.3/8
asked by Jerald 
Hvac
I have a series circuit with 115 Volta with r16ohmd r2 22ohms r3 44 ohms what is the wattage on r3
asked by Anonymous 
math
How can knowing the multiplication properties help you evaluate 5 * ( 20 * 63 )
asked by lorenzo 
English
Posted by rfvv on Thursday, October 11, 2012 at 3:39am. 1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and
asked by rfvv 
math
A stock drops 30 points in five days. Use integers to find the new level of the stock. The stock started at 480 points. I have been using a number line to shoe division but I am stuck on this one. Any help would be great.
asked by Cherie 
Physics
Identify the causes of conductive and sensorineural hearing loss. I have no idea. Please help.
asked by randomchik 
science
Why does the sun and moon appear to be the same size when viewed from earth.My answer is because the sun is bigger than the moon. Am I correct
asked by Americal 
maths
A box contains 20 balls, of which 5 are red, 5 are blue, 5 are white and 5 are green. Suppose a sample of 5 balls are chosen without replacement. a) find the probability that the sample contains balls of all the same colour (answer is 4/ 20C5, but why isnt
asked by Candice 
Calculus 2
how do I find the fluid force of a vertical semicircle that has been divided into three equal sectors of 60 degrees each. I know what the equation to find the fluid force for the whole semicircle is. but how do I find L(y) for each semicircle.
asked by Laura 
7th Geo
Where did the Maori originate from? Indonesia, Malay, Polynesia, Australia. Australia, right?
asked by rawr... im a dinosaur.... rawr 
Math
How do I add, subtract, divide, and multiply integers
asked by Taylor 
physics
derive the formula v0=sqrt((deltaX)squared)*g)/2*deltaY
asked by carlton 
History
Why did slavery became a part of American culture and identity?
asked by Darcy 
AP Chemistry
What effect would a catalyst have on the rate of reaction for the decomposition of ozone?
asked by Corneil 
algebra
find the maximum or minimum of the following quadratic function: y =x2  10x + 25
asked by Desiree 
Chemistry(Please check, thanks)
For C4H10O a constitutional isomer can be written as CCCCOH with hydrogens also coming off of the 4 carbons. I know that this is an alcohol. I need to know if there are stereoisomers for this other than conformers. I think that there are stereoisomers
asked by Hannah 
Algebra
2n11=m/4 n=m/3 Solve for the variables using substitution
asked by Marisa 
Chemistry
How many moles of H2 can be produced? (2.14 mol)
asked by Help 
chemistry
What is the [SO42] in 0.45 M of H2SO4?
asked by kristine 
Linear algebra
Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with adbc not aqual to 0(zero) Please show me how to do this problem Please show me the work
asked by Fatima 
physics
A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (a) the net force on the car
asked by Anonymous 
physics
A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (b) the average power developed by the engine
asked by Anonymous 
Math
Gretchen bought a sweater for $23.89. In addition, she had to pay $1.43 in sales tax. She gave the sales clerk $30. How much change did Gretchen receive from her total purchase?
asked by Rachel 
Algebra
How would you set up problem: your average rate traveling uphill was 2.2 kilometers per hour and average rate downhill was 3.3 kilometers per hour. If he spent a total of 12 hours hiking, how long was the trail?
asked by Ellen P 
math
18/x for x = 0.12 answer ?
asked by destiny 
math
I need to know how to write a word expression for 535 divided by 21
asked by sean 
math
If you run 1 mile on Monday and then double everyday how many miles will you run by friday?
asked by mj 
Science
332 dg = how many mg?
asked by Anthony Ladao 
math
How am I supposed to know where to put the decimal in the answer to,.947+.284+.034?????????????????
asked by Math Geek 
math
The home economics team has 6 3/4 feet of fabric for a class project. They need 3/4 of a foot of fabric for each piece in the project. How many pieces will they be able to cut?
asked by dede 
Math
From these fractions choose ,or= to make a true statement 1. 11/212 8/24 Order the fractions from least to greatest 3/5 1/4 1/2 2/5 Answer: 1/3 2/5 1/2 3/5 6 3/4, 6 1/2, 6 5/6, 6 3/8 Answer: 3/8 1/2 3/4 5/6
asked by Jerald 
algebra 2
3u+7/2=4/3u5/4 solve for u in simplest form.
asked by Lacy 
EnglishMs. Sue please
hypothetical syllogisms can have two valid and two invalid structures. The two valid structures are affirming the antecedent or modus ponens and denying the consequent or modus tollens. The two invalid structures or fallacies are denying the antecedent and
asked by m 
Chemistry
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C.
asked by jim 
Algebra
solve by elimination: 6a+2b = 48 6a+b = 57 What is the solution set ( , )?
asked by Richard 
science
Two mineral samples have the same mass. Which of the following statements is Ture? A. They don't have same density. B. They have the same volume. C. They are the same material.
asked by jim 
Algebra
I cannot solve the problem please help me. I'm suppose to set the equations up to solve for t. x = y + rt + at^2/2 Even when I plug in the values I don't get the answer. x = 16.4 y= 0 r= 0*cos(45)a=0 t is suppose to equal 2.32 if I set the problem up
asked by Angie 
history
The capital of the Southern Song Empire was the city of Kaifeng Beijing X'ian Hangzhou Shanghai I think its Hangzhou but any help would be greatly appreciated!
asked by Lisa 
c++
Your Mathematic school teacher want to use a program that can read the name and the mark of a student. Your teacher want the program to automatically find the grade of the mark and display the result(name, mark and grade). Help your teacher to develop a
asked by sarah 
chem
Define aqueous solution.
asked by stac 
early child care
when attempting to modify a child's behavior using negative reinforcement, the desire result is that the child will: A) Withdraw from certain social activities B) Not argue with adults C) Repeat behavior for which they get the desired results D) Avoid
asked by seema 
Polynomials
A rock is thrown upward at a speed of 10 metres per second. The height of the rock above the ground is given by the formula h=10t2.0t². Where h is the height in metres above the ground and t is the time in seconds. Then what is height after 5 second?
asked by Amanda 
math
which property is demonstrated here? 3455*1=3455
asked by Anastasia 
College Math
In a certain triangle the measure of one angle is triple the measure of a second angle but is 110 degrees less than the measure of the third angle. [The sum of the measures of three interior angles of a triangle is always 180 degrees.] What is the measure
asked by Richard D 
Algebra2
Find the center and radius of the given circle and graph it. 1. x^2+y^2+10y+21=0
asked by Victoria 
English
Posted by rfvv on Thursday, October 11, 2012 at 3:39am. 1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and
asked by rfvv 
foreign language
Idenitiy the Phrase used in the following sentence. Staci decided to visit her aunt and uncle during the summer
asked by Anonymous 
AED/204
Assume that the cultural make up of your classroom includes at least five different ethnic and religious groups. o Address how and why you would create an atmosphere of tolerance, acceptance, and caring in your classroom environment. o Create a plan that
asked by LaTonia 
Physics
A 21.3g bullet is fired from a rifle. It takes 3.77 × 103 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 779 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted
asked by Kendall 
Math
I don't get the first problem of my homework. We learned three lessons today, the increase, decrease, and finding the base number. But i don't know which one I should use. Please help with this problem: There are 12 girls in Mr. Cooper's class. The girls
asked by Losa 
Chem
To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?
asked by Stacy 
English
1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and grammatical?)
asked by rfvv 
english
hypothetical syllogisms can have two valid and two invalid structures. The two valid structures are affirming the antecedent or modus ponens and denying the consequent or modus tollens. The two invalid structures or fallacies are denying the antecedent and
asked by m 
math
I am a four digit number. My tens digit is a 0. My ones digit is an odd number that is less then my hundrads digit. If you multiply me by 5, the estimated produt is 20,000. What number am i?
asked by Anonymous 
chemistry
What is the H+ concentration of a solutoin that is formed by combining 335 mL of 0.110 M HNO3 with 75 mL of 0.120 M Ba(OH)2 at 25 degrees celsius?
asked by Anonymous 
math
Dear Ms.Sue, Is the answer to .947+.284+.034=1.265? Oh I almost forgot THANK YOU SO MUCH!!!!
asked by Math Geek 
Chem
What is the [H3O+] of an aqueous solution having a pH of 11?
asked by Stacy 
English
what does it mean when someone says "im biased towards the colour red"?
asked by Mohammad 
Physics
How does the cochlea sense sound? •Snail shaped tube lined with receptor cells which transmits signals to the brain. Correct?
asked by randomchik 
math
Name a number with decimal hundredths that rounds up to the nearest whole number but down to the nearest tenth
asked by susan 
Mathematics
Solution of middle terms expansion of (2x^2+1/x)^9
asked by Mandy 
science
substance a has a boiling point of 80% C and a density of 3.5 g/cc what is it and why
asked by armando 
Chemistry(Urgent, please check)
For C4H10O a constitutional isomer can be written as CCCCOH with hydrogens also coming off of the 4 carbons. I know that this is an alcohol. I need to know if there are stereoisomers for this other than conformers. I think that there are stereoisomers
asked by Hannah 
geometry
if n(2,4)is reflected in the line y=2 the n`is (2,0) true or false and why
asked by Dominique 
LATIN
Filio meo multi amici erunt I have trouble understanding what this means exactly. This is all I have as a literal translation My brother many friends there are/ they are
asked by Dee 
health
Do you think that all six dimensions of health are equally important?
asked by michelle battle 
books
Would this make a good Jane Eyre theme statement? "Every person searches for love & home, but only few find it." If not, how can I change it? I need help!
asked by Cece 
Math
Arlene plants to sew a patchwork quilt. She purchases different prints, colors, and lengths of fabric for the quilt. She bought the following lengths 3/4 5/8 3/8 1/2. She wants to stack them in order from least to greatest. Which list shows the order which
asked by Jerald 
math
kara needs 35 for an aquarium for 6 fish. how can she pay with the least ten and one dollar bills?
asked by rob 
algebra
The reflection of the tree in the lake is 49 in long. If your shadow in the lake is 14 in long and you are 5 ft, how tall is the tree? Put your answer as inches.
asked by jade 
math
Sandy writes (4*30) + (4*2) and says the quotient for 128/4 is 8. is she correct?
asked by Shumaine 
algebra 2
Solve for x: x=4+x divided by y3
asked by anna 
chemistry  chemistry 
when you were heating milk on the stoven you accidentally spilled some milk on the burner . what color would you see ? why would you see that color? My answer : Intense yellow . because milk has sodium , sodium is intense yellow . is this right ?
asked by Maria 
.
What are 2 causes and 2 effects of the development of ancient civilizations in the Middle East.
asked by . 
chemistry chemistry
What color did your glass stirring rod emid ? what does this indicate about glass strirring rod ? Ans: galss stirring rod emids orange . but i don't know the ans 2 .
asked by Maria 
science
How would I use the particle theory of matter to explain air having mass? I can't figure out a way to put it into words
asked by Cherie 
Chemistry
Silver Nitrate and Sodium carbonate has a known concentration of 0.500M. preparing 25ml of 0.500m. Calculate the mass to the nearest 0.01g.
asked by Sarah Taylor 
math
perimeter = 36 2 x find area please help
asked by shania 
math
name two numbers with decimal hundredth that round to the same whole number but different tenths.
asked by marco 
physics
arthur is riding a horse at a velocity of 4m/s.four seconds after,he is already traviling at a valocity of 12m/s. what is his acceleration?
asked by benedict 
Chem
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C
asked by Dave 
Chem
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C
asked by Howard 
Physical Science
if you tear a piece of material in haft, how is the density affected? sorry i repost it, just the title
asked by Laruen 
science
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.3 m waterfall. The spy’s speed is 16 m/s and the officials’
asked by Anonymous 
Algebra2
Help? Decide whether y is a function of x. 1. 5xy=10 2.x^2+y^2=4
asked by Lauran 
Anthropology
Colonizers successfully changed the colonized from subsistence activities to wage labor with: (Points : 1) rewards and incentives. taxes that had to be paid in cash. persuasion and education. mutual trust and affection
asked by Geraline 
English
did anybody read The Catcher in the Rye?
asked by Mohammad 
math
James is 15 years older than Sue. In 12 years James will twice Sue's age. How old are James and Sue?
asked by Joe 
early childhood education
at what age does exercise begin to result in strength in boys and girls?
asked by Anonymous 
algebra 2
3/8 * 2/7 * (3) Its multiplying fractions, but it wants the answer in simplest form!
asked by Lacy 
math
10.8/x for x = 0.03
asked by destiny 
Math
If f(x)=ax^2+b f(3)=3 and f'(3)=2 find the coefficients a and b.
asked by Larry 
Chem
At constant temperature, a sample of 3.0L of Argon gas at 2.0 atm is compressed until the new pressure is 3.524 atm. What is the new volume?
asked by Stacy 
precal
Find the real zeros of f (x)= 2x^3 + 2x^3 – 8x + 3
asked by ladybug 
Chem
How would we make 500mL of a 1.5 percent w/v solution of KC1 in water?
asked by Stacy 
history
Which of the following was a problem faced by the average Chinese citizen during the Song dynasty? the shrinking use of the civil service exam and thus the lack of opportunity to obtain a government position the control of the Chinese treasury by northern
asked by Colleen 
History
What country are these cities in? Bellman, Portau Prince , Tegucigalpa and Managua?
asked by Emma 
Algebra 1
Ruffles cost $3.49 per bag. ChipsAhoy cost $3.99 per bag. Bobby spent 42.39. If he bought 5 more bags of ChipAhoy than Ruffles, how many bags of each snack did he buy?
asked by Tyler 
Physical Science
What is the force of an 18kg object accelerating at 4m/a squared?
asked by Camaron 
Algebra2:O
Help? Write the standard form of the equation of the circle with the given center and radius. 14. center (2, 0) and r = 3
asked by Victoria 
Anthropology
Before colonialism, most colonized people lived in: (Points : 1) general peace and tranquility static and unchanging cultures a state of balance with nature constant warfare and violence
asked by Geraline 
Chem
How would we make 500mL of a 1.5 percent w/v solution of KC1 in water?
asked by Stacy 
Supertaster......
What makes a supertaster?
asked by rawr... im a dinosaur.... rawr 
precal
Let f(x) be polynomial function. Explain in your own words how to use the Rational Zero Theorem to find the real zeros of f (x).
asked by ladybug 
Math
(x3) is a factor of x^3+ax^2+bx3 but when divided by x+2 the remainder is 15 Solve for A and B I know that A is 1 and B is 11, but I don't understand how to solve it
asked by Kevin 
subject verb agreement
mike felt bad or badly after beating his best friend in a tennis match
asked by Anonymous 
Chemistry
how do you balance equations to get the formula?
asked by Help 
st.bernard
arthur is riding a horse at a velocity of 4m/s.four seconds after,he is already traviling at a valocity of 12m/s. what is his acceleration?
asked by benedict 
chem
what is the mass in grams of the following 6.78 mol of NaI
asked by Gloria 
LATIN
How do I say "belong to" in Latin?
asked by Dee 
math
write the ratio 34 miles to 2 gallons in the simplest terms.
asked by Anonymous 
literary
what does the three column house icon mean in language arts
asked by Anonymous 
Science 8R  help!!!!
if you tear a piece of material in haft, how is the density affected?
asked by Laruen 
math
9.18/x for x =1.2
asked by destiny 
chemistry .....chemistry
what element include in the fireworks power ? why
asked by Maria 
science
82 liters plus 3.876 liters is what?
asked by bryan