Questions Asked on
February 24, 2013

math
In how many ways can the digits in the number 9,662,222 be arranged?
asked by louis AAAAAAAAAAAAAAAAAAAA 
PHYSICS
A stone propelled from a catapult with a speed of 50m/s attains a height of 100m.Calculate:(a)the time of flight?
asked by Anonymous 
algebra
If a rocket is propelled upward from ground level, it's height in meters after t seconds is given by h=9.8t^2+88.2t. During what interval of time will the rocket be higher than 137.2m? h=9.8t^2+ 88.2t I divided both sides by 9.8 which gave me t^2=9 But
asked by Anonymous 
trig
sec0+ten01/tan0+sec0+1=1+sin0/cos0
asked by rahul 
Calculus I, differentiation
The number, N, of people who have heard a rumor spread by mass media by time, t, is given by N(t)=a(1−e−kt). There are 6 million people in the population, who hear the rumor eventually. If 5% of them heard it on the first day, find the percentage of
asked by Brian 
math
vic has a 2pound of flour. she uses 2/5 of the flour to make pizza. she then uses 3/10 of the remaining flour to make bread. find the weight of the package of flower that she has left. express your answer as a decimal.
asked by shohanur 
Statistics
Which of the following is an accurate description of Simpson's paradox? When groups of data are aggregated, an association can get stronger because of a confounding variable. That confounding variable is usually the number of observations in different
asked by Anonymous 
Management for Organizations
PLEASE CHECK MY ANSWERS 1. Which of the following is NOT one of Peter Drucker’s contributions to management theory? (D) The analysis of how organizations select managers, how managers act, and how organizations are structured in different units. The
asked by ashley 
english
Some people are so ____ living near a nuclear plant that they want the plant's license to be ___. They say the plant threatens ever homeowner's right to safety.
asked by elaine 
math
ricardo spends 8/9 hour reading the newspaper. He spends 1/4 of the time reading the world news and splits the remaining time equally between the sports news and the comics. How much time does he spend reading the comics?
asked by shohanur 
algebra
A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for
asked by kisha 
P Value Math Statistics
Find the Pvalue for the indicated hypothesis test with the given standardized test statistics, z. Decide whether to reject H0 for the given level of significance a. twotailed test with test statistic z= 1.57 and a=0.04
asked by Katie 
Grammar...
Is there an apostrophe? Her coat is different from that of her sister's.
asked by Anonymous 
Physics Circuits
In a series RCL circuit the generator is set to a frequency that is not the resonant frequency. This nonresonant frequency is such that the ratio of the inductive reactance to the capacitive reactance of the circuit is observed to be 5.53. The resonant
asked by Please HELP 
chemistry
0.50g of mixture of k2c03 and li2c03 requires 30ml of a 0.25N HCL solution for neutralization. What is the percentage composition of the mixture? The answer k2c03 96% The answer li2c03 4% I want Bob step by step explain. I do not still understand x/69 +
asked by Fai 
physics
A metal block of mass 5kg lies on a rough horizontal platform.If a horizontal force of 8N applied to the block through its centre of mass just slides the block on the platform,then the coefficient of limiting friction between the block and the platform is
asked by Kenny 
Math Help Please!!!!
Determine which sampling method was used in each scenario. on a particular day 5 flights are selected at random and all of the passengers on these 5 flights are screened. Airport security uses a random number generator to determine the next passenger to
asked by Taylor 
Physics
The coil of wire in a galvanometer has a resistance of RC = 78.0 Ù. The galvanometer exhibits a fullscale deflection when the current through it is 0.440 mA. A resistor is connected in series with this combination so as to produce a voltmeter. The
asked by Don 
Physics
Two scales on a voltmeter measure voltages up to 20.0 V and 27.0 V, respectively. The resistance connected in series with the galvanometer is 1680 Ù for the 20.0V scale and 2930 Ù for the 27.0V scale.
asked by Anonymous 
Chem
CH4(g)+2O2 arrow CO2(g)+2H2O(1) delta H=890.3kJ. Calculate delta Hwhen 5 grams of methane react with an excess of oxgen?o i just divide Delta H by 5?
asked by Anonymous 
statistics
how to find the target cf when using the formula for score at a given percentile ?
asked by gwendolyn 
Physics
A nonconducting ring of radius with a uniform charge density and a total charge is lying in the  plane, as shown in the figure below. Consider a point P, located at a distance from the center of the ring along its axis of symmetry. (a) What is the
asked by P 
Physics
There is a very large horizontal conducting plate in the plane (consider it infinitely large). Its thickness is . The charge densities on the upper and the lower surfaces are both equal to . The goal of this problem is to find the electric field (magnitude
asked by P 
Coding and billing
This 82 year old female was admitted for acute exacerbation of chronic obstructive pulmonary disease the progress notes I dictate that the patient received a transfusion for anemia the discharge diagnoses state acute exacerbation of chronic obstructive
asked by Jscky 
physics
A document ys to be reproduced using a duplicating camera where should the document be placed in order to obtain an exact copy
asked by Kay 
English
1. Dialectical poetry is poetry that a uses a unique rhyme scheme and meter. b has fourteen lines and uses iambic pentameter. c uses language that is specific to a geographic location. d is based on symbols that represent opposite extremes. 2. Which of
asked by Drea 
Physics
A uniform ladder of 5.0 m long and 12 kg is leaning against the wall (contact with the wall = point b, contact with the floor = point a). The height from the ground to point b is 4m . The wall is frictionless but the floor is not. A painter of 55 kg climbs
asked by Grace 
Physics
As a crude model for lightning, consider the ground to be one plate of a parallelplate capacitor and a cloud at an altitude of 590 m to be the other plate. Assume the surface area of the cloud to be the same as the area of a square that is 0.50 km on a
asked by Valerie 
Physics
A parallelplate capacitor is made from two aluminumfoil sheets, each 3.90 cm wide and 10.3 m long. Between the sheets is a mica strip of the same width and length that is 0.0225 mm thick. What is the maximum charge that can be stored in this capacitor?
asked by Valerie 
English
William Wordsworth’s poems “Lines Composed a Few Miles Above Tintern Abbey,” “The World is Too Much with Us,” and “I Wandered Lonely as a Cloud.” How are these poems representative of the Romantic Period? I don't understand this question. Any
asked by Danniel 
chemistry
how is it possible for the same element to be oxidized in one reaction and reduced in another?
asked by Sara 
physics
You are working in an ice skating rink and have been asked to hang a new banner on the wall. Your friend is helping you so that the ladder does not collapse by exerting a force FAL at an angle relative to the horizontal. how do you set this up?
asked by James 
AP Chemistry
A very old and tired , grey haired AP Chem instructor wanted to determine the Ka of an unlabelled monoprotic acid in his stockroom. He dissolved an unknown amount of acid in an unknown amount of water and proceeded to titrate the sample with a solution of
asked by Sarah 
Algebra II
2y^11/3+8y^8/310y^5/3=0
asked by Jeannie 
statistics
Accuracy of price scanners at WalMart. The National Institute for Standards and Technology (NIST) mandates that for every 100 items scanned through the electronic checkout scanner at a retail store, no more than 2 should have an inaccurate price. A recent
asked by Sandy 
Math
find the slope of a line that is parallel to the graph of the equation y=x+3?
asked by Anonymous 
Chemistry H
If the pressure on the surface of water in the liquid state is 30 kpa, the water will boil at... 0, 30, 70, or 100 degrees c?
asked by lost 
math
Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,500 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the
asked by Andrew 
Physics
There are two conducting concentric hollow spheres of outer radii and ( ). The thickness of the material of both spheres is . The inner sphere is negatively charged with charge density . The larger sphere is positively charged with charge density . (a)
asked by P 
physics 2
A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. The antenna broadcasts radio signals at the resonant frequency of the tank circuit. Suppose that a certain tank circuit in a shortwave radio transmitter has a fixed
asked by anonymous 
Algebra
What is the value of b in the triangle shown below? the trianle they show is a right triangle and the length shows 3b...the width just shows b...and the inside says 24 in^2 A.–4 in B.4 in C.±4 in D.no solution I think i is B..but its a guess..?
asked by Cassie 
English
What's does mrs. Johnson represent in a raisin and a sun
asked by Samira 
Physics
A bungee jumper with mass 69.7 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 39.0 s. He finally comes to rest 25.0 m below the level of the bridge. Calculate the spring
asked by Bob 
mathsARITHMETIC PROGRESSIONS
A person buys a refrigerator for rupees 12000. He pays rupees 6000 in cash and agrees to pay the balance in 12 annual instalments of rupees 500 each. If the rate of interest is 12% and he pays it with instalments on the unpaid amount, how much did the
asked by Anonymous 
Chemistry
In determing the simplest formula of lead sulfide, 2.46 grams of of lead are placed in a crucible with 2.00 grams of sulfur. when the reaction is complete, the product has a mass of 3.22 grams. What mass of sulfur should be used in the simplest formula
asked by Sarah 
ENGLISH
If we united we will stand if we divide we fall. If we will fall what happen to us?
asked by DARPAN 
Calculus
F(x)= ln ((3t + 1)^4 / (2t + 1)^3) F'(x)=
asked by Eve 
Chemistry
Suppose u place a beaker containing a solution in the refrigerator. An hour later, white solid found at thr bottom of beaker, wat hapoened? Why?
asked by Ruby 
life orientation
what 5 basic condition of employment act applies with regard to the contravention
asked by Anonymous 
TOURISM GRADE 12
influence of recent global event on tourism
asked by Anonymous 
algebra
4y^34y^2+3y
asked by selena 
maths
find the length of a wire required to fence the rectangular field 200m x 150m and also find the cost of fencing at Rs.10/m?
asked by rachel 
physics
At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for the bullet(show your working)
asked by Kay 
Physics
A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground. What is the magnitude of the ball's velocity just before it hits the ground?
asked by Joe 
algebra
find the domain of each rational expression each polunomial must be fully factored and that you can only cancel factors you can not cancel terms. x^249 over 2x1 and x^214+49 over 12x
asked by renee 
mechanics
Sketch a stressstrain curve for glass and label all the points of interest and different regions of the curve.
asked by dmkp 
mechanics
A mild steel bar of length 10cm and width of 10mm is extended by 0.01 mm. Which of the following is equal to the change in width of the bar.(The Poisson's ratio of mild steel is 0.31) A 3.1x104mm B 3.1x104mm C 3.1x105mm D 3.1x105mm
asked by dmkp 
Physics Conservation of Momentum
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at
asked by Isis 
Physics
The “Giant Swing” ride consists of a vertical shaft with a number of horizontal arms attached at the top as shown. A rigid cable 5.0 m long connects a seat to the arm at a point 2.0 m from the center shaft. When the ride reaches its full speed, the
asked by Meder 
math
Write 1/64 as a decimal and as a percent to the nearest whole percent
asked by noahc 
Physics
Let U=(13i3−i). What is U†? Explicitly indicate multiplication with a * symbol. For instance, you should write 3*i+2 instead of 3i+2.
asked by unknown 
Physics
Which of the following pairs of quantum gates commute? Select all that apply. (Gates A and B commute if and only if for any input applying A and then B gives the same results as applying B and then A. This is the same as saying that the unitary
asked by unknown 
Physics
Alice and Bob share a state a++⟩+b−−⟩, where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants a+⟩+b−⟩, what gate does he apply
asked by unknown 
edu
Rosa is a newborn. As she grows, which will she learn to control last? A. Her fingers B. Her hands C. Her arms D. Her head ... Is the correct answer (D.)her head
asked by resi 
Algebra
Mr. Rodney's English class is made up of 28 students. He has 6 ESL students, 10 remedial students, and 5 advanced learners. ESL students make up 1/5 of the remedial students and 3/5 of the advanced learners. 1. What is the probability that a student is ESL
asked by Ari 
Physics
A 0.149kg baseball is pitched a 40 m/s. The batter hits it horizontally to the pitcher at 56 m/s. Find the change in momentum of the ball. If the ball and bat were in contact 4.2 multiplied by 104 s, what would be the average force while they touched?
asked by Anonymous 
Math
The number, N, of people who have heard a rumor spread by mass media by time, t, is given by N(t)=a(1−e−kt). There are 6 million people in the population, who hear the rumor eventually. If 5% of them heard it on the first day, find the percentage of
asked by Jose 
Calculus
The number, N, of people who have heard a rumor spread by mass media by time, t, is given by N(t)=a(1−e−kt). There are 6 million people in the population, who hear the rumor eventually. If 5% of them heard it on the first day, find the percentage of
asked by Jose 
Chemistry
Q1: You wish to prepare a buffer solution with pH = 11.10. What volume of 6.0 M HCl would you add to 500 mL of 0.10 M (C2H5)2NH to prepare the buffer? You may assume that the solution’s volume remains constant. Q2: What is the resulting pH when 20 mL of
asked by David 
Algebra II
A rock is thrown upward with a velocity of 28 meters per second from the top of a 36 meter high cliff, and it misses the cliff on the way back down. When will the rock be 9 meters from the water below. Round to two decimal places.
asked by Jeannie 
Introduction to Accounting
Payment of a telephone bill represents an increase in a/an: A. Asset B. Expense C. Liability D. Revenue My answer:B. I'm I correct?
asked by NeNe 
Algebra II
(z^2+6z)+14(z^2+6z)+45=0
asked by Jeannie 
Gen Math
A school dance has 228 students. There are 63 fewer girls than twice as many boys. How many boys and girls attended the dance?
asked by Katie 
statistics
In a normal distribution with mu = 25 and sigma = 3, what number corresponds to z = 3? is it 16, 18, or 20
asked by Katie 
Diff eq
y'(x)=sqrt2y(x)+7, y(4)=1 Solve the seperable diff eq
asked by Melissa 
Chemistry
A very old and tired , grey haired AP Chem instructor wanted to determine the Ka of an unlabelled monoprotic acid in his stockroom. He dissolved an unknown amount of acid in an unknown amount of water and proceeded to titrate the sample with a solution of
asked by Summer 
Honors Application
I am filling out an Honors application for English/History and one of the questions asked why do I wish to take this course.. any ideas? Thanks My ideas are: I want want to take this course because I want to take a class that is a bit more advanced than
asked by Chris 
MATH
An arithmetic student needs at least a 70% average to receive credit for the course. If she scored 86%, 77%, and 64% on the first three exams, what is the lowest score she can get on the fourth exam to receive credit for the course?
asked by KIM 
MATHS SALES TAX plse URGENT
a shopkeeper buys an article at a discount of 15% on the printed price. after charging a sales tax of 5% on the printed price, he sells the article at rs.630. find the profit
asked by Anonymous 
science
Using the equation: work = force x distance tell me how much work is done when a boy applies 5 Newtons of force over a distance of 2 meters. A)10 Watts B)10 Joules C)10 Amps D)10 Newtons
asked by faithwest98 
Physic
A stone 817kg has an 91.9 acceleration. What's the net force
asked by Michael 
Chemistry
Q1: You wish to prepare a buffer solution with pH = 11.10. What volume of 6.0 M HCl would you add to 500 mL of 0.10 M (C2H5)2NH to prepare the buffer? You may assume that the solution’s volume remains constant. Q2: What is the resulting pH when 20 mL of
asked by Anonymous 
Math Helppp
The College Board, which are administered each year to many thousands of high school students, are scored so as to yield a mean of 550 and a standard deviation of 100. these scores are close to being normally distributed. what percentage of the scores can
asked by Taylor 
chemistry
Consider a mixture of the two solids BaCl2 * 2H2O (FW=244.26 g/mol) and KCl (FW=74.551 g/mol). When the mixture is heated to 160 C for 1 hour, the water of crystallization is driven off: BaCl2 * 2 H2O (s) BaCl2(s) + 2 H2O(g) A sample originally
asked by Anonymous 
Math
A Scale Drawing of a rectangular field is 10 centimeters by 8.5 centimeters. If the actual field has dimensions of 40 meters by 34 meters, which could be the scale used for the drawing?
asked by Jikeria 
biology urgent
In mice, a gene controlling coat colour has 2 alleles; B (black) and b (white). A pure breeding black mouse is crossed to a white mouse and all the offspring are black. The offspring are then crossed to white mice. The phenotypes of the offspring of this
asked by alex 
The Lovely Bones
If anyone has read this novel could you please explain 2 things to me. 1) Is Ruth Connors able to see the dead? Like when she moves to NYC she writes about all the murdered women she finds. How does she go about doing that? Can see she Susie too? 2) How is
asked by Lena 
Art History
What may have been one cause for the relative lack of artistic production in Florence during the High Renaissance (after the death of Lorenzo), and the relative increased artistic production in Rome during this period?
asked by Carl 
biology
In a chorus of male frogs of one species, which would be considered by evolutionary biologists to be the fittest? The biggest frog. The frog that has the most descendants. The frog with the largest territory. The loudest frog. The frog that attracts the
asked by alex 
ibnozohr
A point charge Q1=−2 μC is located at x=0, and a point charge Q2=+8 μC is placed at x=−0.5 m on the xaxis of a cartesian coordinate system.The goal of this problem is to determine the electric field, E⃗ (x)=E(x)xˆ, at various points along the
asked by Anonymous 
Math
There are 24 hours in each day.there are 7 days in one week how many hours are there in a week?
asked by Rosie 
Chemistry
4Fe + 3O2 = 2Fe2O3 So in math book it say " You can interpret this equation in terms of representative particles by saying that four atoms of iron react with three molecules of oxygen to produce two formula unit of iron(iii) oxide" Why it say that there
asked by Shadow 
algebra
use distributive property to factore each expression 42q  21
asked by larry 
Calculus
Use logarithmic differentiation: F(x)= (3x+6)^4 (x^3 2)^5
asked by Emma 
mat/116
Hi I need help graphing this linear inequality. y
asked by Sade C 
biology
Describe human dispersal, animal dispersal eating, hook on fur and bursting. Also how they are adapted.
asked by Anonymous 
us history
How did the Supreme Court rule on the Indian Removal Act? is it Jackson's order to move the Indians west was unconstitutional. or The Indian Removal Act was unconstitutional.
asked by andrew 
physics
A box of books weighing 350 N is shoved across the floor of an apartment by a force of 460 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move
asked by elana 
math
I need step by step explanation of the following problem. Using the lever system equation F1x=F2(dx)solve the following problem: A screwdriver 9 in. long is used as a lever to open a can of paint. The tip of the screwdriver is placed under the lip of the
asked by Traci 
physics
A box of books weighing 350 N is shoved across the floor of an apartment by a force of 460 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move
asked by elana 
Physics
A pond is 12 metres across. The crests of two successive waves are 60.0 cm apart and they each move across the pond in 15 seconds. a)What is the velocity of the waves? b)What is the frequency of the waves? c)What is the period of the waves?
asked by Mark 
maths
the classmarks of classes in distribution are 6,10,14,18,22,26,30.find (a)class size (b)lower limit of second class (c)upper limit of last class (d)third class Explain in detail.
asked by ujjval 
PHYSICS
The antenna broadcasts radio signals at the resonant frequency of the tank circuit. Suppose that a certain tank circuit in a shortwave radio transmitter has a fixed capacitance of 1.8 x 1011 F and a variable inductance. If the antenna is intended to
asked by Please HELP 
Math
one satellite radio service charges $10.00 per month plus an activation fee of $20.00. a second service charges $11.00 per month and an activation fee of $15.00 for what number of months is the cost of either service the same?
asked by Anonymous 
Physics
A 1200kg automobile is stolen by the notorious Physics joyriders known as “the centripetal gang”. The gang tests their grasp on Newtonian physics by cruising around a banked circular track of radius 1025 m. From previous ‘experiments’ the gang has
asked by Meder 
college chemistry
Why is it that sodium chloride or acetic acid can't bee steam distilled??
asked by Anonymous 
statistics
how to find the tatge cf when using the score at a given percentile ?
asked by gwendolyn 
Chemistry
One of my homework problems deals with finding the change in entropy of the surroundings using the equation delta(S)= delta(H)/T(temp.) The numbers given were T=263K and delta(H)fusion=6.0*10^(3) J/mol I know how to solve the problem, I just want to know
asked by Confused 
Physics
Three capacitors are connected in series. The equivalent capacitance of this combination is 3.18 µF. Two of the individual capacitances are 6.54 µF and 8.19 µF. What is the third capacitance (in µF)?
asked by Anonymous 
Physics
Electric Field of Two Charges : 15.0 points A point charge is located at x=0, and a point charge is placed at on the axis of a cartesian coordinate system.The goal of this problem is to determine the electric field, , at various points along the axis.
asked by P 
physical
A computer is reading data from a rotating CDROM. At a point that is 0.036 m from the center of the disc, the centripetal acceleration is 120 m/s2. What is the centripetal acceleration at a point that is 0.056 m from the center of the disc?
asked by Anonymous 
Chemistry
I need help in solving this problem: A certain substance has a heat of vaporization of 42.46 kJ/mol. At what Kelvin temperature will the vapor pressure be 5.00 times higher than it was at 291 K? I know that I have to use the ClausiusClapeyron equation,
asked by Confused 
Math Alex
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth length 10 com width 4 height 10
asked by alex 
Physivs
A flat thin nonconducting ring has an inner radius and an outer radius . The disk is uniformly charged with charge per unit area . (a) What is the electric field at the center, , of the ring? Express your answer in terms of the following variables, if
asked by P 
Survey of Calculus
For the function below, find the slope of the tangent line at x=2 (5x^(4)+4)/(2x^(3)+7) Can someone explain how to do this?
asked by Matt 
computer science
Im trying to create an arraylist that's sorted but I have no idea how to sort the numbers. I cant use the array.sort method here is my code: public class Testing { private int [] data; private int count; private static int defCapacity = 10; public Testing
asked by Adam 
programming
m trying to create an arraylist that's sorted but I have no idea how to sort the numbers. I cant use the array.sort method here is my code: public class Testing { private int [] data; private int count; private static int defCapacity = 10; public Testing
asked by Adam 
Physics
In the drawing below, R1 has a resistance of 6.2 Ù and R2 has a resistance of 2.6Ù. Determine the current (magnitude and direction) in the 6.2 and 2.6Ù resistors in the drawing.
asked by Don 
Physics
A charge is located at and a charge is located at . Thus the separation between the two charges is . The total electric field on the axis can be written as (a) What is the direction of the total electric field at any point on the axis where ? (b)What is as
asked by P 
mat/116
Please help me slove this question. An investor invested a total of $3,200 in tow mutual funds. One fund earned 5% profit while the other earned a 2% profit. If the invesor's total profit was $103, how much was invested in each mutual fund? Tne amount
asked by Sade C 
mathematics
How do you do fractions ?
asked by carys 
math
Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,500 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the
asked by Katarzyna 
Physics
Find the current in the 10.0Ù resistor in the drawing (V1 = 23.0 V and R1 = 21.0 Ù). A
asked by Anonymous 
Finance
Tom company has sales of Rs.200,000/ with variable expenses of Rs.150,000/, fixed expenses of Rs.60,000/, and an operating loss of Rs.10,000/. By how much would Tom have to increase its sales in order to achieve an operating income of 10% of sales?
asked by vikram 
Algebra
What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x D.no solution I think it is C...? If I am right can you show your work please...I am just starting to understand these..thank you
asked by Cassie 
chemistry
find work done when 1mole of calcium carbide reats with water to produce acytelene?
asked by arpit 
calculus stewart
Evaluate the integral Int 7x ln(5x) dx
asked by fanny 
chemistry (Pls Bob check for me)
A 1.2g mixture of na2c03 and k2c03 was dissolved in water to form 100cm3 of s solution, 20cm3 of this solution required 40cm3 of 0.1N hcl for neutralization. Calculate the wieght of na2c03 and k2c03 in the mixture The answer 0.4G My own calculation: na2c03
asked by Fai 
Physics
A charge of 5 nC is located at P(2,π/2,3) and another charge of 10nC is situated at Q(5,π,0). Calculate the force exerted by one charge on the other. What is the nature of this force?
asked by Miguel 
Math help
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth length 10 cm width 4 cm height 10 dont tell me the answer just show me how to do it
asked by alex 
mathsprofit
a shopkeeper buys an article at a discount of 15% on the printed price. after charging a sales tax of 5% on the printed price, he sells the article at rs.630. find the profit
asked by Anonymous 
poem incident in a rose garden
explain any ironies or unexpected twists that you see in this poem
asked by Anonymous 
algebra
A video game manufacturer is planning to market a new machine. The fixed costs are $550,000 and the variable costs are $120 per machine. The wholesale price of the machine will be $140. How many game machines must be sold for the company to make a profit?
asked by Jackie 
Chemistry
Calculate the volume in liters of the gas (O2) at STP if it was massed at 6.75 x 105 grams.
asked by tif 
Algebra 2 ..
1. Solve 3=log8+3logx 2. Solve 2logxlog4=0
asked by Anonymous 
sfsu
This exercise is based on the following table, which lists interest rates on longterm investments (based on 10year government bonds) in several countries in 2008. HINT [See Example 4.] (Round your answer to the nearest integer.) If you invest $10,200 in
asked by merli 
Algebra
2(y4)(3y2)=2(6y2)
asked by Crystal 
dynamics
If it is released from rest at a height of h = 2 ft from the top of the uncompressed spring, determine the speed of the collar after it falls and compresses the spring 0.9ft .
asked by Rob 
math
PQ is a chord of length 8 cm of a circle of radius 5 cm . The tangents at P and Q intersects at T. Find the length of TP.
asked by Anonymous 
math
What does this mean? 100=
asked by noahc 
Physics
A 11V battery is connected to three capacitors in series. The capacitors have the following capacitances: 5.3 µF, 10.7 µF, and 31.8 µF. Find the voltage across the 31.8µF capacitor. Please Help!
asked by Valerie 
math
The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare
asked by Shannon 
SOC203
ALL BUT ONE of the following effects occurs as a result of warfare: (Points : 1) diminished social programs. motherchild bonding. literacy decline. political restructuring.
asked by PAT 
physics
Explain the changes in frequency with respect to changes in mass, length tension on sonometer bridge.
asked by Bulding science 
home inspection
11. Structural failure in a roof may be due to A. the presence of a vapor barrier between the attic floor and the ceiling below. B. too little span between supporting members. C. cuts made in rafters or trusses for addition of components such as stairways
asked by Austin 
home inspection
16. Brick ties in brick veneer walls allow for A. water drainage. B. air circulation. *C. expansion. D. inspection.
asked by Austin 
structurlal design 2
15. Sagging in floor joists is typically caused by A. oversized joists. B. undersized joists. C. improper nailing of subflooring. D. improper moisture content of the wood i think it's D.
asked by Austin 
Calculus
The equation of motion of a particle is s= 2y^3  7t^2 + 4t +1 where s is in meters and t is in seconds a) Find the velocity and acceleration as functions of t. b) Find the acceleration after 1 second.
asked by Jilian 
Chemistry
pH pH ( strip c : 8 ) dark green pH ( strip d : 3 ) purple  suppose u mix togather equal amounts of the solutions that produced the results of strip c and d , then test the pH of this new solution. What color will the indicator paper be? Explain .
asked by Ruby 
math
What are the vectors and called?
asked by Char 
geography
what is exsolation?
asked by mark 
Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds Im
asked by Matt 
STAT
An independentmeasures research study compares three treatment conditions with a sample of n = 10 in each condition. The sample means are M1 = 2, M2 = 3, and M3 = 7 a. Compute SS for the set of 3 treatment means. (Use the three means as a set of n = 3
asked by Tracy 
Math
Nan wants to measure the length of board. Which of the following units would be the most precise? A. inch B. foot C. 1/16 inch D. 1/8 inch
asked by Anonymous 
RATIOS
A MODEL TRAIN IS 1;48 ON SCALE. THE ENGINE IS 13 5/8 INCHES. HOW MANY FEET IS THE ACTUAL ENGINE?
asked by alice 
RATIOS
10.6 PESO IS $1 US DOLLAR. YOU HAVE 2500 PESO. YOU WANT TO EXCHANGE TO US DOLLAR. HOW MANY WOULD YOU GET?
asked by alice 
Algebra II
A rectangular auditorium seats 900 people. The number of seats in each row exceeds the number of rows by 11. Find the number of seats in each row.
asked by Jeannie 
math
using the example above, the new highway will be a total of 54 miles long. will the highway be finished in 8 mouths
asked by salma 
Algebra class!
WEEK 5  Work Rates You work in retail. In the past you inventoried and shelved the weekly UPS shipment in 2 hours. Your coworker usually takes 3 hours to do the UPS shipment. How long will it take the two of you working together to finish this week’s
asked by Lisa Urgent Math!! 
Math
Prove the identity: tanA/secA+1 = secA1/tanA Can u please explainit to me step by step? I greatly appreciate your help! Thanks:)
asked by Kristien 
Math
Dalia made 8 party bags for her birthday party. Each bag contained 4 small gifts for her friends. When Denis said that she could come, Dalia had to make one more bag with 4 gifts. How many small gifts did Dalia need to fill her bags? Walter wrote this
asked by Jess 
Chemistry
Mg + 2HCl > MgCl2 + H2 Over an interval of 1.00s, the mass of Mg changes by 0.011g What is the corresponding rate of consumption of HCl (in mol/s)? I got 9.0E4 mol/s and that's the right answer. But I'm having problems with the next question. Calculate
asked by a Canadian 
Algebra
Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $50,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 5% compounded annually?
asked by Kevin 
Tips
Any ideas on how to get good grades on a test when your sick?
asked by Maya 
Science
Solution preparation: 500ml's of .2M Sodium Cacodylate Buffer with a pH of 7.4 I don't even know where to start, could someone please tell me how to do this problem.
asked by Jessica 
management science
can you please give me 10 good definitions of what a marketing is, the authors and the date it was defined
asked by stanley 
math
proof thise for me. nCr=nCrr 2) nCr+nCr+1=n+1Crr+1
asked by stanley 
Science
What is convection?
asked by Abbey 
CIS 115
CIS 115 week 7 exercise: Determine output. I need help with this week's exercise...DeVry CIS 115 week 7...please help! Using the questions on page 2, determine the output for each question. If input data is provided, be sure to use it with the each
asked by dddiii 
Physics Impulse
1.)A 0.5 kg hockey puck moving at 35 m/!@#$%^&s a straw bale, stopping in 1 s. a) What impulse is delivered to the ball? b) What force is exerted on the puck? 2.) A racing car with a mass of 1400 kg hits a slick spot and crashes headon into a concrete
asked by Isis 
life orientation
Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within your community or any other community within south africa and globally.inlcude evidence that is current of the identified issues
asked by itumeleng 
calculus
F(x)= ln (cos theta) f'(x)
asked by Jeremy 
Quantum chemistry
For the simple harmonic oscillator determine: b. [Tˆ,Vˆ ]
asked by Adam 
Physics Conservation of Momentum
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at
asked by Isis 
Math!!
You work in retail. In the past you inventoried and shelved the weekly UPS shipment in 2 hours. Your coworker usually takes 3 hours to do the UPS shipment. How long will it take the two of you working together to finish this week’s UPS shipment? 1)What
asked by Urgent Urgent!! 
management science
10 definitions of what marketing is, the authors and year
asked by stanley 
physics
A 30.343 V emf is placed across a series combination of three resistors (10 Ω, 15.632 Ω, and 64 Ω). At what rate is heat generated in the 15.632 Ω resistor? Answer in units of W
asked by emily 
Quantum Physics
Suppose we have a qubit in the state ψ>. We know that if we measure it in the standard basis, the probability of getting a 0 is 7/9. Now, if we instead first apply a Hadamard gate and then measure the resulting qubit Hψ> in the sign basis, what is the
asked by qwerty 
math
the first term of a linear sequence is 5,nd d common difference is 3 find the 15 term
asked by mimi 
science
What is the gram formula mass of NaC2H3O2 multiplied by 10H2O
asked by Dexter 
math
Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,500 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the
asked by Katarzyna 
Algebra
The owner of a hair salon charges $20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from haircuts were $750. Hw much does the owner charge for a haircut? Solve by writing and
asked by Cierra 
Quantum Physics
What is ZX applied to H0>?
asked by qwerty 
Chemistry
Experimentaly discribe how to determine the formula of magnesium.
asked by Daniel 
english
Humpty Dumpty" tells the story about an egg that fell off a wall and broke. "Humpty Dumpty" is a __ poem. A.narrative B.free verse C.limerick D.nonsense Is it a narrative(a)
asked by ray 
math
Example: 1 Gas is escaping from a spherical balloon at the rate of 2 ft3 / min .How fast is the surface area shrinking when the radius is 12 ft ?
asked by me 
Chemisty
250g of water containing sucrose freezes at 3.5C. What is the molality of the solution?
asked by Jared 
Maths
What is the nth term and the next two terms of the following: (a) 0^1,2^2,24^3,252^4. (b) 1,1,2,4,7,13,24. (c) 0,1,2,3,6,11
asked by Very urgent please 
programing
convert this c++ code to assembly for (a=0; a
asked by eric 
math
A soccer ball is kicked upward from the ground and its height (in metres), t seconds after it is kicked, is given by the equation h(t)= 49t^2 + 19t. What wiil be the maximum height attained by the ball? And how much does it take for the ball to hit the
asked by Gabo 
business
DEFINE THE FOLLOWING TERM AS PART OF THE MICRO BUSINESS ENVIRONMENT: ORGANISATIONAL CULTURE
asked by Anonymous 
Chemisty
195 g of water containing magnesium chloride boils at 102.5 celcuis. what mass of salt is needed?
asked by Jared 
Fahrenheit 451
Carefully reread these lines, “Somewhere the saving and putting away had to begin again and someone had to do the saving and keeping, one way or another, in books, in records, in people’s heads, any way at all so long as it was safe, free from moths,
asked by Nina 
math geometry
a cone has a radius of 2 inches and a height of 12 inches if the radius of the cone is double what must be the new height in the cone in order to keep the volume constant
asked by SHASHA 
Fahrenheit 451 theme
Which detail from the text best exemplifies the theme of the novel? 1) “We know the damn silly thing we just did. We know all the damn silly things we’ve done for a thousand years and as long as we know that and always have it around where we can see
asked by Nina 
Spanish 2 help
1. Si yo Tuviera Hambre, Me volvería a comer (comer.) 2. Si el bebe Tuviera sueño, eL estaría en bed (dormir.) 3. ¿Que te necesito to (gustar) pedir? 4. Me loved (gustar) las pechugas de pollo. 5. Si yo fuera Tom Cruise, i haría (ser) Famoso. 6. Yo
asked by alexus 
Math:o
It takes a florist 3h 15min to make 3 small centerpieces and 3 large cebterpieces. It takes 6h 20min to make 4 small centerpieces abd 7 large centerpieces. How long does it take to make each small centerpiece and each large centerpiece? Write and solve a
asked by LILY 
Pacific Union College
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.5 g of biphenyl in 28.8 g of benzene?
asked by Nick 
PHYSICS
In a series RCL circuit the generator is set to a frequency that is not the resonant frequency. This nonresonant frequency is such that the ratio of the inductive reactance to the capacitive reactance of the circuit is observed to be 5.53. The resonant
asked by anonymous 
algebra 2
Express the sum in the simplest form. 3x/x+5 + 7/x+5
asked by jim 
Fahrenheit 451
Reread these lines from the text, “No we’ll save what we can, we’ll do what there is left to do. If we have to burn, let’s take a few more with us. Here! He remembered the books and turned back. Just on the off chance.” What future event in the
asked by Nina 
math
the sales tax rate in fortworth, texas is 8.25%. find the tax charged on a purchased of $26.98
asked by ariyah 
Physics
1. To move a large crate across a rough floor, you push on it with a force F at an angle of 21° below the horizontal. The mass of the crate is 32.0 kg. The coefficients of static and kinetic friction are 0.62 and 0.42 respectively. (a) What force F is
asked by Meder 
Counseling
Using Erikson's psychosocial theory and Piaget's cognitive development theory, create four case studies in which the characters are clearly in specific stages.
asked by Blue 
MATH Algebra 2
[1/3,1/2] Can you please please graph this in interval notation!! Thank you so much!
asked by Blair! 
Physics
A 6.40 kg block rests on a 12.5 kg block as shown in the diagram. The interface between the lower mass and the table is frictionless, but there is friction (static friction μS and kinetic friction μK) between the two blocks. A horizontal force F r acts
asked by Meder 
English
I was sick this weekend so the person who sent home my work didn't send me the book and my notes for this english assignment so can u please help me!! Nominative and Objective case 1. the guide showed (we, us) the Yoruba sculpture exhibit. is it us?
asked by Please Help 
Algebra
x+3y>3 and 4x+y=4
asked by Ruth 
chemistry
2 HI(g) H2(g) + I2(g) The reaction above has an initial concentration of 2.00 M HI. (No other species are initially present.) If 22.4% of the HI has reacted when equilibrium is established, calculate Kc for the reaction.
asked by shabaka 
mathsProfit, discount
a shopkeeper buys an article at a discount of 15% on the printed price. after charging a sales tax of 5% on the printed price, he sells the article at rs.630. find the profit
asked by Anonymous 
mechanics
Sketch a typical stressstrain curve and label all the points of interest and different regions of the curve.
asked by dmkp 
science
A 65.7 kg person jumps from a window to a fire net 21.0 m below, which stretches the net 1.14 m. Assume that the net behaves like a simple spring, and calculate how much it would stretch if the same person were lying in it.
asked by Bob 
mechanics
Sketch a stressstrain curve for which the stress is calculated using the actual crosssectional area rather than the original crosssectional area. Explain why this curve differtypical stressstrain curve
asked by dmkp 
math algebra
find the vertex 6x^(2)+84+294
asked by ofo 
Chemistry
A 0.010M solution of base B is 15% dissociated. Calculate the Kb for base B.
asked by James 
Algebra II
A rock is thrown upward with a velocity of 19 meters per second from the top of a 21 meter high cliff and it misses the cliff on the way back down. When will the rock be 11 meters from the water below?
asked by Jeannie 
Physics Impulse part 2
1) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 s a) What is the impulse? b) What is the velocity of the object at the end of this time interval? 2) A 2250 kg car traveling to the west at 20.0
asked by Isis 
mechanics
Use a sketch to illustrate what cantilever bending is and give an everyday example of it. (b) use a sketch to illustrate what threepoint bending is and give an everyday example of it. (c) For each of the two beams shown below: (i) calculate the maximum
asked by dmkp 
mechanics
Sketch two SN curves on the same axis, one for a metal with an endurance limit and one for a metal without an endurance limit. Mark any points of interest on the curves.
asked by dmkp 
math
I dontunderstand this question can you please help me. "Explain why 3 separate lines can all be parallel to each other,but 3 separate lines cannot all be perpendicular to each other. Use a drawing to show your answer."
asked by nicole 4th grade 
mechanics
A metal bar with a crosssectional area of 50mm2 is subjected to a tensile strain of 0.001. What is the tensile force responsible for the strain given that the material has a Young's modulus of 15GNm raise to the power 2 A 0.003N B 7.5x103N C 7.5x 1010N
asked by dmkp 
mechanics
An aluminum alloy bar with a Young's modulus of 70GPa is under a tensile stress of 10MPa, Which of the following is the equal to the strain in the bar? A 0.0014 B 7.0x103 c 700 D 1.4x104
asked by dmkp 
Finance
Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $40,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 5% compounded annually?
asked by Kevin 
mechanics
The change in length of a steel wire under an applied load can be halved by keeping all other conditions constant but using: A. a different material having a Young's modulus half that of steel B half the cross sectional area of the steel wire C half the
asked by dmkp 
Physics Impulse
1.)A 0.5 kg hockey puck moving at 35 m/!@#$%^&s a straw bale, stopping in 1 s. a) What impulse is delivered to the ball? b) What force is exerted on the puck? 2.) A racing car with a mass of 1400 kg hits a slick spot and crashes headon into a concrete
asked by Isis 
math
a sprinter runs the first 50 meters in 5 seconds. What will be the velocity at the end of the 5 seconds?
asked by j 
Math
a+p =5 p 11/4 >a
asked by tony 
Physics
A spaceship of mass 175,000 kg travels from the Earth to the Moon along a line that passes through the center of the Earth and the center of the Moon. At what distance from the center of the Earth is the force due to the Earth twice the magnitude of the
asked by Meder 
physics
(a) What is the resistance of a 120 , a 2.50 k, and a 4.00 k resistor connected in series? (b) What is the resistance if they are connected in parallel?
asked by taryn 
Math
Which line below is parallel to y=2/3x+5? a. 2x3y=6 b. 2x+3y=6 c. 3x2y=6 d. 3x+2y=6
asked by Alysa 
physics
Your car's 31.5 W headlight and 2.15 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume if connected in series to a 12.0 V battery? (Neglect any other resistance in the circuit and any
asked by taryn 
English
Is a cardboard box a specific site? A staircase or chair would be a specific site, but what about boxes?
asked by T 
Quantum Physics
Alice and Bob share a state a++> + b>, where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit in a+> + b>, what gate does he
asked by qwerty 
Education/Technology
Many classroom resource materials include Web resources that assist you in the tasks required for your classroom. What tool generates a seating chart or stores student progress? A) Electronic gradebook tool B) Lesson plan tool C) Test generator tool D)
asked by Anonymous 
Math 209
THE FEDERAL DEBT D IN TRILLIONS OF DOLLARS HELD BY FOREIGN AND INTERNATIONAL INVESTORS x YEARS AFTER 1970 CAN BE MODELED BY D(x) = WHERE 15 ≤x≤ 40.
asked by Mari 
algebra
Provide A Reason For Each Step Of Simplifying The Expression 3 3(4p1)7p
asked by nisha 
American History *URGENT*
so i have some multiple choice questions that i am confused on. *PLEASE TAKE THE TIME TO READ* i know it's alot, but it would really help me out so much! this is due in the morning! I had a total of 122 questions, but got stuck on a few. on the first one I
asked by MIKE 
Writing
is this sentence considered a metaphor sentence "I think I should indicate why i am her in Brimingham, since you have been influenced by the vie which argues against "outsideres coming in."
asked by Jeanie 
algebra
what are the intercepts of y=2x+2
asked by zachary 
statistics
A store manager claims that the average age of his customers is less than 40 years old, while the industry average is 40 years old. He asks you to test his thinking. You collect a sample of 50 customers and found that the average age is 38.7. Assuming that
asked by Faye 
Chemistry
A very old and tired , grey haired AP Chem instructor wanted to determine the Ka of an unlabelled monoprotic acid in his stockroom. He dissolved an unknown amount of acid in an unknown amount of water and proceeded to titrate the sample with a solution of
asked by Kat 
Physics
Suppose we have a onequbit unitary U that maps 0⟩ to 130⟩+2−2i31⟩ and 1⟩ to 2+2i30⟩−131⟩. What is U? Explicitly indicate multiplication with a * symbol. For instance, you should write 3*i+2 instead of 3i+2.
asked by unknown 
Physics
Suppose we have a onequbit unitary U that maps 0⟩ to 120⟩+3√i21⟩ and +⟩ to 1−3√i22√0⟩+3√i−122√1⟩. What is U? Explicitly indicate multiplication with a * symbol. For instance, you should write 3*i+2 instead of 3i+2.
asked by unknown 
algebra
can anyone help me solve 14+ 6/18x = 40
asked by DJDiamond 
Physics
5. What is ZX applied to 0⟩? 6. What is ZX applied to H0⟩?
asked by unknown 
Physics
Suppose we have a qubit in the state ψ⟩. We know that if we measure it in the standard basis, the probability of getting a 0 is 79. Now, if we instead first apply a Hadamard gate and then measure the resulting qubit Hψ⟩ in the sign basis, what is
asked by unknown 
English
I myself would enjoy going to Europe if I had the opportunity. reflexive? intensive Do you know _______ our new gym teacher will be? who? whom The doctor held the light above _______. he him? We were grateful for _______ bringing in old grocery bags for
asked by Danniel 
Physics
Specify the state of each qubit after we applied the circuit. First qubit: Second qubit:
asked by unknown 
Book: Fahrenheit 451 Ray Brad Bury
. What does Granger mean when he says “I am Plato’s Republic” or that Montag is “the book of Ecclesiastes”?
asked by Nina 
Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds
asked by Matt 
Physics
An animalrescue plane flying due east at 33.0 m/s drops a bale of hay from an altitude of 58.0 m. If the bale of hay weighs 173 N, what is the momentum of the bale the moment it strikes the ground?
asked by Anonymous 
algebra 1
Your family decides to visit your grandparents that live in ohio. You drive at an average rate of 55 mph when driving in Indiana and 65 mph when driving in Ohio. The entire trip of 295 miles takes 5 hours. How long does it take to reach the IndianaOhio
asked by lilly