Questions Asked on
December 21, 2014

Chemistry!
Liquid A has vapor pressure X, and liquid B has vapor pressure Y. What is the mole fraction of the liquid mixture if the vapor above the solution is 30% A by moles? 50% A? 80% A? (calculate in terms of x and y) I'm a little bit confused because I thought
asked by Amy 
math
Manny makes dinner using 1 box pasta and 1 jar of sauce. If pasta is sold in packages of 6 boxes and sauce is sold in packages of 3 jars what is the least number of dinners that Manny can make without any leftovers?
asked by isabella 
Chemistry
what are the intermolecular forces present in: 1. npropyl alcohol 2. nbutanol 3. 2butanol 4. tertbutanol alcohol 5. pentane 6. hexanes I know that the forces include dipoledipole, iondipole, dispersion, and hydrogen bonding...but I don't know how to
asked by Jim 
Static Friction..I really Have no Idea
A 0.40 kg block rests on a desk. The coefficient of static friction is 0.20. You push the side of the block but do not have a spring scale to measure the force you use. The block does not move. Which statement is true about the force of static friction? It
asked by Sam 
chemistry
A sample of co2 occupies 6.00l at 25c and 700. MmHg. What is the volume of the gas at stp
asked by k 
Physics
A 10.0 kg barrel is lifted by pulling up on a rope. The barrel accelerates at 1.50 m/s2. Find the force of tension on the rope.
asked by Henry 
Physics revolutions
A 0.013 kg rubber stopper attached to a 0.93 m string is swung in a circle. If the tension in the string is 0.70 N, what is the period of the stopper's revolution?
asked by Punani 
MathHow do I do this problem?
An inverted conical tank (with vertex down) is 14 feet across the top and 24 feet deep. If water is flowing in at a rate of 12 ft3/min, find the rate of change of the depth of the water when the water is 10 feet deep.
asked by Mark 
Integration
a cattle trough has a trapezoidal cross section with a height of 1 m and horizontal sides of width 1/2 m and 1 m assume the length of the trough is 10 m. A. how much work is required to pump out the water in the trough? B. if the length is doubled does the
asked by Anonymous 
History
Hi I'm honestly stuck on these 3 questions, I looekd on wiki and everything. Please Please help me out.. What action did President Polk take that resulted in the war between the United States and Mexico? He ordered troops to invade Mexico and capture Vera
asked by Jen 
Physics
Two objects, one of mass 3kg moving at 2m/s, the other of mass 5kg and speed of 2m/s move towards each other and collide in a head on collision. If the collision is perfectly inelastic, find the speed of the objects after the collision.
asked by Brooke 
LA  Voices
Which statement is true about the passive voice? A verb is in the passive voice when the subject performs the action/ It is generally considered better style for writers to use the passive voice. A passive verb is made from a form of have with the past
asked by SkatingDJ 
Physics
A 0.0420kg hollow racquetball with an initial speed of 18.3 m/s collides with a backboard. It rebounds with a speed of 7.4 m/s. Calculate the total impulse on the ball.
asked by Brooke 
math
The amount used to purchase one litre of petrol can be used to purchase three liters of diesel or five liters of kerosene. Out of a certain amount, $510 is spent on diesel. How much is spent on kerosene if equal volumes of three liquids are purchased with
asked by ragavi 
phys
While spinning in a centrifuge, a 70.0 kg astronaut experiences an acceleration of 5.00 g, or five times the acceleration due to gravity on the earth. What is the centripetal force acting on her?
asked by Ashley 
chemistry
what volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at constant temperature and pressure.
asked by ch 
Algebra 1
Which ordered pair is a solution of the inequality? y>= 4x5 3,4 2,1 3,0 1,1
asked by Steve 
Physics
A baseball with mass of 0.145 kg is thrown straight down at the ground. At a particular speed, it has a drag force of 0.4 N acting on it. What is its acceleration at that time? 2.8m/s^2
asked by Angel 
Science
The work required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h is?
asked by Shubham 
economics
A bond yields $100 yearly at 4 percent interest. What is the market value? I got $1,500.
asked by Anonymous 
physics
A speeder doing 50.0 mi/hr (about 22 m/s) in a 25 mi/hr zone approaches a parked police car. The instant the speeder passes the police car, the police begin their pursuit. If the speeder maintains a constant velocity, and the police car accelerates with a
asked by christoper allen 
science
A running back has 3500 J of kinetic energy and is running at a speed of 8 m/s. Calculate his mass.
asked by steve 
chemistry
When 40.2g of kc103 is heated what quantity of kc1 is produced
asked by k 
Criminology
Social control theories focus on: A. static aspects of the personality. B. physical features of the social environment. C. the process through which social integration develops. D. causative factors in criminal behavior. I think it's B, but not sure.
asked by Pat 
maths
Find the periodic payment R required to amortize a loan of P dollars over t years with interest earned at the rate of r %/year compounded m times a year. P=30,000 r = 8 t = 12 m =1
asked by luvena 
physics
A ball is thrown vertically up from the edge of a 150 m building with a veloicty of 10m/s. (A) how high did the ball rise? (b) how much time did it take fort he ball to reach this height ? (C) what is the velocity oft he ball as it strikest he ground ? (D)
asked by christoper allen 
dimensions
THE ASME RECOMMENDS THE USE OF?
asked by almar 
chemistry
In the determination of the molar mass of a volatile liguid a 250ml flask was found to contain 0.250g of the vapor measured at 273c and 760 mmhg pressure. The molar mass is nearest the value
asked by k 
ENG 122 English Composition II
Which of the following sentences is correctly punctuated? I always have a difficult time choosing a topic. Writing is hard! I always have a difficult time choosing a topic; writing is hard! All of the above None of the above
asked by Jones 
MATHS
ABCD is a cyclic quadrilateral in which angle BAD=70,angle ADC=80 and angle ABD=55,AC and BD intersect at M,find angle CMD
asked by BHAGWAN 
Physics~
The moon's gravity is onesixth that of the earth. What is the period of a 0.25 m long pendulum on the moon?
asked by Mary 
algebra
an airplane flies with a constant speed of 960 km/h. How long will it take to travel a distance of 960 kilometers?
asked by brea 
physics
120 grams of an unknown metal at a temperature of 95 degrees celcuius is poured into 140 grams of aluminum calorimeter containing 220 grams of water. If the inital temperature of the water and calorimeter was 15 degree celcuius and the final temperature
asked by christoper allen 
Math
If 12 ft^2 of material is available to make a box with a square base and an open top, find the largest possible volume of the box. 2 ft3 4 ft3 5 ft3 8.5 ft3 9 ft3 the whole ft^2 and ft^3 throws me off..can you help
asked by Peter 
math
at a sale,josh bought 4 shirts and 3 pairs of jeans for $181.at the same store,mike bought 1 shirt and 2 pairs of jeans for $94.
asked by ben 
ENG 122 English Composition II
A good conclusion does all of the following EXCEPT It explains the contents of a source with quotes and citations. It articulates ideas in a complex manner that ties analysis together. It explains implications of ideas and the importance of the research.
asked by Jones 
algebra
Tickets are being sold for a theater. Cost for students: 2 dollars. Cost for other people: 5 dollars. The total amount of tickets sold: 250. Total amount of money made: 950. How many of the tickets were sold to the students? To the others?
asked by Sidney 
physics
two girls exeret a force of 30 N and 10 N on a bag in same direction. a dog tugs at bag and drag it in oppsite direction with the force of 5 N. calculate the new force exerted on bag and draw a vector diagram. F= 10+30 = 40 N dog applied force in opposite
asked by ruby 
economics
Mutual funds are attractive to small investors because (a) the funds offer a guaranteed return on investment (b) the funds are insured by an agency of the US government (c) the funds offer the opportunity to share in an investment in a variety of stocks
asked by Bob 
science
The various groups who make up the US public have different expectations of science. How do these differing expectations of science affect the ways groups place trust in science? Describe one example of a controversial expectation that the author gives.
asked by Linda 
physics
a force of 200 N is exerted at an angle 30 degrees with respect to the horizontal on an object whose mass is 30kg. the coefficient of friction between the object and the surface is the 0.2.(a)what is the frictional force?(B) what is the acceleration of the
asked by christoper allen 
Math
the conductor looked at his pocket watch to see what time the train would be leaving. it read 8:37 pm. if it takes the polar express 3 hours and 15 minutes to get to the north pole, what time will it be when it arrives?
asked by Anon 
Math
MountRush more is a sculpture that was curved using a model with a scale of 1 inch: 1 foot. Sculpture Refer to the information at the above. Find the scale factor and actual height of George Washington's face on the sculpture if the height of the the
asked by Isabella 
Physics Horizontal Velocity
How do you calculate the horizontal velocity of an object in a projectile problem?
asked by Joan 
Science
A ball is thrown up and attains a maximum height of 1000 m.It's initial speed was?
asked by Shubham 
Do you guys get Christmas off?
Hi, just wanted to know if you guys get Christmas off, you have been working hard and i think you need to spend some time with your families :)
asked by Santa Claus ♥ 
ap calc
Find the value of c which satisfies Mean Value Theorem for the function f(x)=sin(x) on the closed interval (3ð/2,3ð/2).
asked by Anonymous 
Math!
On the train we had 41 different kinds of cookies. 3 different flavors of cocoa, and 122 candies. How many treats did we have in all?
asked by Max 
statistics
interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of . The psychologist randomly selects children from this group and finds that their mean IQ score is . Based on this
asked by Anonymous 
math i really need help!!
What is (5.93x10^5)(2.71x10^4) scientific notation..
asked by starie johnn 
Art
What does the family look like it is celebrating in Le Traditionnel Gâteau des Rois by EdmondJoseph Massicotte? It looks like Thanksgiving to me.
asked by Anonymous 
algebra
Abigail roller skates with a constant speed of 8 miles per hour. How far can she travel in 1 1/2 hours?
asked by brea 
ENG 122 English Composition II
Which thesis sentence best addresses a counterargument? Carbohydrates are not healthy for most people. Despite years dependence on calorie reduction to lose weight, medical intervention and personalized diet plans are more effective than a generic diet of
asked by Jones 
EnglishMadame Bovary
These questions relate to the novel "Madame Bovary" by Gustave Flaubert. 1. Emma Bovary makes a number of decisions which have poor results. Which of the following would probably be Flaubert's explanation of why she made those decisions? A. Reading
asked by Esmerelda 
help
From the following information, determine the maturity date of the loan. Enter the full name of the month. (E.g., March) Loan Date Time of Loan (days) Maturity Date February 5 110
asked by reva 
physics
a horizontal force of 3 N is excerted on an object while a vertical force of 4 N is excerted at the same time. calculate the resultant force on the object? 3 square + 4 square = 25 so the resultant force will be 25 N
asked by ruby 
Fluid Mechanics
the problem says: Water flows from a bathtub through a 2.5 diameter plastic pipe to a large airfilled drain...etc Here, i need to know what is the pressure at the airfilled drain? Is it equal to the atmospheric pressure? Thanks in advance.
asked by Mohamed 
Nothing Realted
I know this question should not be here but my samsung galaxy s5 is not working. The screen will come but i can not do anything. Technically it is frozen. I have tried every method. I tried to take the battery out. It did not work. I also tried to reboot
asked by Anonymous 
Calculas
what is the velocity (in ft/s) of a sandbag 2.75 s after it is released from a hotair balloon that is stationary in the air?
asked by jessica 
Calculas
area between the curves y=4x^2 and y=x8
asked by jessica 
math
A seed company claims that 9 of every 10 seeds will produce plants. How many plants should you get from a package of 220 seeds?
asked by Tyshun 
ap calc
For the curve f(x)=xln(x)+ (1x)ln(1x), find the value of x in the interval 0
asked by Anonymous 
Math
The clock struck midnight as the elves roared with approval for Santa to give his gift to Macy. How many hours would pass by if Santa could give out another gift tomorrow at midnight?
asked by Student 
music appreciation
Who was the first Americanborn conductor to lead the New York Philharmonic?
asked by jessica 
math
In a box there are 3 red, 3 blue and 3 green balls. If 3 balls are picked from the box randomly, one by one, with replacement, what is the probability that none of them will be blue?
asked by protik 
College Math
The number of visitors to your business website increased at a rate of 60% per day, going from 30 per day to 30,000 per day. How many days did it take to go from 30 to 30,000 visitors per day? 30,000(1+0.6) but I need to solve for t that's where I get
asked by Patricia 
College Math
mean of 21 and standard deviation of 1.2, what is the zscore of 21 No clue how to figure this out
asked by Patricia 
Algebra
Question Part Points Find the monthly payment for the loan. (Round your answer to the nearest cent.) A $118,000 home bought with a 20% down payment and the balance financed for 30 years at 10.5%
asked by Shay 
math
what are the base and exponent in the expression 5.6^4? add (3.4x10^6)+ (4.7x10^7)
asked by starie johnn 
algebra
grace roller skates with a constant speed of 13 km/h. How long will she take to travel a distance of 27 kilometers?
asked by brea 
Algebra 2
An object 5.7 feet tall casts a shadow that is 17.1 feet long. How long in feet would the shadow be for an object which is 14.4 feet tall?
asked by Susie 
algebra
an airplane flies with a constant speed of 500 miles per hour. How long will it take to travel a distance of 1000 miles?
asked by brea 
ENG 122 English Composition II
Topic sentences are optional and should not be used in a persuasive essay. True False
asked by Jones 
multiplcation
6 X 1750=
asked by kirsten 
Calculus
evaluate each of the following integral: I= ∫((x^2+ 1)/(x^4+ 1))dx Y=∫(sinhxcoshx)dx/√(sinhx^4+coshx^4)
asked by NA 
Fluid Mechanics
I have a question in fluid mechanics...and i need to know the pressure in an airfilled drain? Is it the atmospheric pressure? Thanks in advance
asked by Mohamed 
mechanic
There are cases where the Rasul did not spell out specific criteria for a certain condition/situation.For example the minimum distance travelled to qualify as a musafir.In this instant,for example would the criteria to be a traveller depends what the uruf
asked by mechanic 
Math
An experimental solid disc flywheel has a 300m diameter and a mass of 70kg. Experiments show that, at all speeds of rotation, the frictional resistance to motion is equivalent to a torque of 0.15Nm. if when the flywheel is rotating at 50 rev/min, the
asked by Anonymous 
Science
WHY PUMICE STONE FLOAT IN WATER
asked by Anish 
Science
If 1 J of energy is applied to lift an object of 500 kg how high will it rise?
asked by Shubham 
finance
which of the following investments paid the highest rate of return? (a) a corporate bond that paid $72 per year in interest and that cost $600 to purchase (b) a money market fund that paid 8 percent interest (c) a corporate stock that cost $40 to buy and
asked by Anonymous 
College Math
numbers given are: 3.5, 2.6, 3, 3.1, 2.6, 2.8, range is 0.9 zscore of 3.1 is Okay I am lost
asked by Patricia 
College Math
variance of 30 for a data, what is the standard deviation
asked by Patricia 
ap calc
If f(x)=e^x, g(x)=sin(x), and h(x)=f(g(x)), then h'(pi/2)=? Please help I have no idea how to solve
asked by Anonymous 
ap calc
if f(X)= 2XX^2,if xor equal to 1 find two values of c in the interval [0,2] that satisfy the mean value theorem. Please help I have no idea how to solve
asked by Anonymous 
AP CALC
Find the POSITIVE value of x that satisfies the mean value theorem for f(x)=sin(x) on the closed interval [3pi/2, 3pi/2]. please help I have no idea how to solve this problem
asked by Anonymous 
science
is this correct? what I just sent you?
asked by Linda 
French
Is "Elles sont belles" or "Elles sont belle" correct? I think it is the former.
asked by Anonymous 
ENG 122 English Composition II
A writer can demonstrate the connection between evidence and claims by doing WHICH ONE of the following? allowing evidence to speak for itself showing a clear, logical connection letting common sense prevails staying firm to personal beliefs
asked by Jones 
Chemistry
the molar mass of triolein is 885 g/mol, how may moles of CO2 molecules do i have
asked by Bren 
Math
Determine which of the following is true for the function X^3+5x^28x+3 f(x) has a relative minimum at x = 2/3. f(x) has a relative maximum at x = 2/3 f(x) has a zero at x = 2/3 Both A and C are true.
asked by Max 
Calculus
Determine the equation of the normal line y=x^2+5 at the point (2, 9) I got y= 4x+1
asked by Olivia 
calculus
use implicit differentiation to find y=(x+8)^(3x)
asked by John 
Calculus
If 3x^2+y^2=7 evaluate ((d^2)y)/(dx^2) when x=1 and y=2
asked by John