Questions Asked on
March 29, 2011

physics
A gymnast with mass m1 = 47 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 118 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end of the
asked by Anonymous 
physics
A gymnast with mass m1 = 47 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 118 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end of the
asked by Anonymous 
physics
A volume Vi = 23.1 L of air at temperature T = 21 ¢XC is compressed at constant temperature to a volume Vf = 7.7 L. The relative humidity of the air before compression is R = 56.4 %. Saturated water vapour in air at this temperature has a vapour pressure
asked by Sarah 
Calculus
Function f(x)= e^x^2 a) Inflection Values b) Intervals on which f(x) is concave downward c) Intervals on which f(x) is concave upward.
asked by Anonymous 
Chemistry
To culinary experts and to the average person the term “Extra Virgin” has a ring of exclusiveness and quality to it. When it comes to olive oil, exactly what does this term signify? I am supposed to explain the chemistry behind Extra Virgin Olive oils,
asked by annonymous 
Primary Auditory Cortex (Psych)
In lecture the prof says A1 and primary visual cortex interchangeably. Are they the two just different ways of referring to the same thing or is A1 a specific regions in the primary auditory cortex?
asked by Lena 
Environmental Science
Debate the claim that famines are caused more by human actions (or inactions) than by environmental forces. What scientific evidence would you need to have to settle this question? What hypotheses could you test to help resolve the debate?
asked by Anonymous 
English
A teacher has so many things that they are responsible for and for that reason; it is beneficial for everyone to have as much help as possible. Is this sentence correct or should it be a comma after reason?
asked by Pete 
algebra 2
Darla is building a new desk. To make sure she had made a square corner, she measures 10ft from the corner along one edge and 7ft from the corner along the other edge. How long should the diagonal be betwee those two points if the corner is a right angle?
asked by Esther 
math i need help plz!
A store sells televisions for $360 and video cassette recorders for $270. at the beginning of the week its entire stock is worth $45,990. During the week it sells three quarters of the televisions and one third of the video cassette recorders for a total
asked by ash 
Chemistry
A student titrates HCl with 0.0125M KOH. Starting with 50.00 ml of the acid it takes 40.0 ml of base to reach equilavence point. A. What is the concentration of the HCl? B. What is the initial pH of the acid solution? C. What is the pH of the reaction
asked by Joseph 
Math
90 is twice as much as?
asked by stacie 
calculus
where is f(x)=12cos(3x) equal to zero. so far i have pi/2+n2pi.. i am not sure about pi/2
asked by amy 
prob/stats
Nationwide, the amount charged by doctors for performing a particular minor surgical procedure averages $1220 and varies with a standard deviation of $270. We randomly select 140 bills from the population of all bills charged for this surgery. Let
asked by amanda 
prob/stats
Nationwide, the amount charged by doctors for performing a particular minor surgical procedure averages $1220 and varies with a standard deviation of $270. We randomly select 140 bills from the population of all bills charged for this surgery. Let
asked by amanda 
general knowledge
how can we write 17. march.2011 in 5 letters without using any numbers
asked by smita 
C++
For each of the following problems, write a program or a program segment that performs the specified action.Each problem refers to class Polygon (Fig. L 11.15). This class contains a dynamically allocated array of xcoordinates and a dynamically allocated
asked by karen 
physicsMomentum
A Cadillac of mass 2210 kg going east collides with a Geo of mass 1240 kg headed north on a level highway. The cars remain tangled and slide to rest after traveling 25 m in a straight line at an angle of 20° north of east. The coefficient of kinetic
asked by Thomas 
intro to statisics
78% of US homes have a telephone answering device. In a random sample of 250 homes, what is the probability that fewer than 50 do not have a telephone answering device. Courtney, 2nd yr college
asked by Courtney 
social studies
explain briefly four factor led to enclousers in england
asked by yugi 
reserch
what changes would you half to make to a human being phisical features if it were to live in an enviroment with a temprature over 50c every day.
asked by cooper 
statistics
1. Observe the number of customers visiting a particular ATM Centre during any day from March 21 to 26, 2011 between 10 a.m. – 12 noon with a time interval of 5 minutes (number of customers using the ATM every 5 minutes). Calculate the average number of
asked by prakash 
stats 2
3. Piyush, who had joined the infrastructure department of the bank, was asked to estimate the rental value of commercial property at Ranchi, for the purpose of identifying suitable premises for locating a new branch. Piyush assessed the standard deviation
asked by prakash 
stats 3
2. Collect the data pertaining to the number of customers serviced (by you or by one of the branch employees) and the number of leads generated through them during any 10 consecutive working days in February 2010. The data has to be tabulated as under. The
asked by prakash 
stats 4
4. RBI is analyzing the total credit flow in the economy and the circulation of money in the economy. In order to formulate its annual Monetary & Credit policy, RBI is assessing the credit off take in the banking sector and has classified as low, moderate
asked by prakash 
physics
A charge is uniformly distributed over a linear section from 0
asked by Sandhya 
chemistry
What is the pH of a sodium acetate solution prepared by adding 0.820g of sodium acetate to 100.0mL of water at 25 degrees?
asked by Natalie 
Physiology
Why is it important to clear a neurotransmitter quickly from the synaptic cleft? What might happen to the target muscle cell if the neurotransmitter were NOT cleared? What might happen if neurotransmitter reuptake occured too quickly?
asked by Ivy 
maths
Derive an expression for sin(alpha minus beta) and cos(alpha minus beta) with neccesary diagrams
asked by dammy 
biology 101
describe ecosystem of temperate rain forest population growth and regulation through community interactions
asked by ellie 
algebra
A car for $40 a day plus 21c per mile. You are on a daily budget of $82. What milagae will allow you to stay within your budget?
asked by Gracie 
algebra
A car for $40 a day plus 21c per mile. You are on a daily budget of $82. What milagae will allow you to stay within your budget?
asked by Gracie 
marketing,,,,pls help me
please can you help to have an idea for this question...thanks a lot how does a firm corporate culture influence the performance of its personnel? the answer should be ralated to a small catering business that caters to corporate accounts.
asked by jessie 
Physics
.17 kg hockey puck initial velocity 21 m/s stops 62m away. what is coefficient of friction?
asked by Bob 
English  Native speakers
Hello! Can we say: Are you going to apply to a job soon? or is apply for a job more correct? In which cases can we say apply to?
asked by Mark 
physics
determine the most probable velocity of the gas molecules, whose density is ρ = 0,35 kg / m³ at a pressure of ρ = 40 kPa.
asked by lisa 
Chemistry
A student titrates HCl with 0.0125M KOH. Starting with 50.00 ml of the acid it takes 40.0 ml of base to reach equilavence point. A. What is the concentration of the HCl? B. What is the initial pH of the acid solution? C. What is the pH of the reaction
asked by Joseph 
sociology
i need to know how sociological concepts can define the environmental problems we have facing these days?
asked by biniam 
algebra
What is the basic principle that can be used to simplify a polynomial? What is the relevance of the order of operations in simplifying a polynomial?
asked by logan 
Chemistryhelp needed
Posted by candy on Monday, March 28, 2011 at 3:15pm. 0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from
asked by candy 
English  Native speakers
How would you correct this sentences? It should have been a day just like other days.A usual day
asked by Mark 
chemistry
The calcium phosphate in a phosphate rock weighing 7.4kg was found to be 477.92mg. What is the concentration of calcium and phosphorous in ppm in the rock sample.
asked by Adeyemi 
Chemistry
How to prepare 1000 nM stock solution using Tam (1 gm) Mol Weight=563.6
asked by Boobla 
accounting
Neer Department Store uses the retail inventory method to estimate its monthly ending inventories. The following information is available for two of its departments at August 31, 2011. Sporting Goods Jewelry and Cosmetics Cost Retail Cost Retail Net sales
asked by Sara 
science....need answer in 8 minutes!!!!!!
Which of the materials is NOT recently mined from the ocean floor? 1.oil and gas 2.nodules 3.diamonds 4.phosphorites HELP!!!!
asked by cc 
Macroeconomics
. Atlantis is a small, isolated island in the South Atlantic. The inhabitants grow potatoes and catch fresh fish. The accompanying table shows the maximum annual output combinations of potatoes and fish that can be produced. Obviously, given their limited
asked by Leigh 
English
Carl is using a defense mechanism known as displacement, which is the transfer of an emotion from its original focus to another object, person, or situation. Why do I need a comma after "displacement"?
asked by Missy 
Dante's inferno project Question
So I just received a project from my english teacher.. and Dantes Inferno is our topic. We have to choose one person. ( can be alive or dead) on the world to put in hell, for a sin or something and choose which level to put he/she on. I'm doing george
asked by Allyson 
Physics
A satellite with an orbital period of exactly 24.0 h is always positioned over the same spot on Earth. This is known as a geosynchronous orbit. Television, communication, and weather satellites use geosynchronous orbits. At what distance would a satellite
asked by Becky 
Math
What is the median of this set? {π, √25, 15%, √15, 10/4}
asked by Mai 
math
Please check my answers Would you be more likely to get at least 70% tails if you flip a fair coin 10 times or if you flip a fair coin 1000 times? same Consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of
asked by anonymous 
Accounting
If Grant House Furnishing accepted a ten month 8% interest rate, $3000 note from one of its customers on april 1, 2008. How much interest will Grant House Furnishing accrue for the month of April?
asked by Lilly 
Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problemsolving tool than a sensemaking tool. ii. It really depends on the formula.
asked by Tammy 
Maths
Find the general solution to the system dx/dt=Ax where A[0,1;1,0]
asked by Chris Williams 
algebra 1
plz explain how to do this in detail: using only 39 cent and 24 cent stamps, charlie put $7.14 postage on a package he mailed to his sister. if he used twice as many 39 cent stamps as 42 cent stampsp, how many 24 cent stamps did he use??
asked by Robbie 
physics
(Conservation of Linear Momentum)How do you find the kinetic energy lost during a collision when you already have both the masses and both the initial and final velocities?
asked by Nyakallo 
Math
Search: a chemist is asked to make a 25% sodium chloride from 20 ml of a 20% sodium chloride solution. How much salt should she add to make it a 25% solution?
asked by Linda 
chemistry
A gas measures 500 ml at a temperature of 23 C. Find its volume at 23 C.
asked by mary ann 
chemistry
1.44 liters of gas at 0.935 atm are compressed to 0.275 l. Find the new pressure in atm.
asked by mary ann 
science
given 90 ml of Hydrogen gas collected with the temperature is 27 degrees C. What volume will the Hydrogen occupy at 42 C ?
asked by mary ann 
chemistry
A gas has a volume of 100 ml when the pressure is 735 mm. What volume will the gas occupy at 700 mm ?
asked by mary ann 
math
There are fifty marbles in a sack: red, blue and green. There are ten more green than blue marbles in the sack. The probability of drawing a red or blue marble is onehalf. Write and solve an equation to determine how many of each color marble is in the
asked by Mai 
Geometry
1. Graph the quadrilateral with vertices C(9,4), D(4,8), E(2,6), and F(3,2). What specific shape is it? 2. Include the work with explanations of how you solved this. 3. List at least 2 other ways you could have proved this. You do not have to prove
asked by Rachel 
physics
find the mean free path of the molecule of oxygen at normal pressure, if the coefficient of diffusion of oxygen at the same pressure and temperature of 0 ° C is equal to 0,19 cm ² / sec. найти среднюю длину свободного
asked by lisa 
math
A sphere is inscribed in a cylinder. The surface area of the sphere and the lateral area of the cylinder are equal. true?
asked by danny 
Math
After the first 41 games of the baseball season, the Red Sox have a winning percentage of 0.585 and the Yankees have 0.512. How many games behind the Red Sox are the Yankees?
asked by Katie 
English Literture
Please help. What mistakes do Romeo and Juliet make that leads to their ultimate downfall?? I am struggling. Please help.
asked by katiyar 
maths
Calculate the discriminant of the quadratic expression 4x^2x3
asked by elizabeth 
maths
The following quadratic equation has the integer solutions x^2+5x6=0 what is the positive solution of the equation
asked by elizabeth 
chemistry
how to make 0.5%glacial acetic acid from glacial acetic acid
asked by mathews 
physics
is fluid pressure constant?
asked by sheila 
calulas
Find and identify the location of the extreme points of f(x)=8xln4x
asked by Meg 
algebra
Two sides of a triangle have equal length. The third side is seven inches shorter. How long are the three sides if the perimeter is 23 inches?
asked by Anonymous 
math similiar figures
The pyramid above has a base of 48 square inches and a height of 17 inches. Which set of dimensions would produce a similar figure?
asked by Anonymous 
A level law
what are the disadvantages of the current system of training barristers and solicitors please help
asked by elizabeth 
math
A banner in the shape of an isosceles triangle has a base that is 2 inches shorter than either of the equal sides. If the perimeter of the banner is 34 inches, then what is the length of the equal sides?
asked by Anonymous 
Business Law
I'm having trouble figuring out this question. I can't think of a legal theory that would apply in this case. If anyone could help me out, that would be great! Fidelity Mortgage sells a mortgage on Doug Quicksilver's home to Enterprise Bank. Enterprise
asked by Courtney 
Math
Is it true or false a 15%annual rise in prices means that costs have gone up the same dollar amount every year.
asked by Renee 
Maths
solve by Gauss elimination x+yz=2 x+3y +z=3 4xy+3z= 5 show work for each step please
asked by Chris William 
math
what is the next number? 5,13,29,61,125,_?
asked by cindy 
math
round n359,641 to the nearst 1,000
asked by cindy 
math
name all the properties to a equilateral triangle and a obtuse triangle
asked by cindy 
math
what is $ 15,000 more than $1,275,000? _ need answer in 3 min.
asked by cindy 
math
The following data show the number of Chinese citizens who immigrated to the U.S. Use the data to predict how many Chinese immigrated to the U.S. during the 1990s. Decade No. of Chinese Immigrants 1950s 10,000 1960s 35,000 1970s 124,000 1980s 389,00
asked by Mick 
math
erin ate 1/4 of heer cookies for snack.she had 18 left in her bag. how many did she have in the bag before she had her snack? erin ate 12 more cookies .what is the fraction total she has eatened now ? what is the precentage of what she has eatened now?
asked by cindy 
sociology
Identify a movie or book, identify with examples from the movie or book three main sociological concepts (not theories) that we have studied, identify which theory (conflict, functionalist, feminist, or interactionist) was evident in the movie or book, and
asked by Anonymous 
Chemistry
An unknown material absorbs 1,930 J of heat when it changes from 25 °C to 35°C. The sample weighs 500g. What is the specific heat of this material?
asked by Katie 
Discrete Math
I want to verify that this is correct: An arithmetic sequence begins, 116, 109, 102 • Determine whether 480 belongs to this sequence, if it does, what is its term number? 480 = 116 + (n  1)(7) n  1 = 85.142. . . So, that means 480 does not belong
asked by Francesca 
maths
A ball is launched into the air from below a cliff. after t seconds its height above the cliff top is h metres, and is given by the equation h = − 4.9t 2 + 19.6t − 14.6. Calculate, to the nearest metre, the maximum height the ball
asked by elizabeth 
marketing
discuss the legal and ethical implications that could affect the marketing process with nutrition life cycle of school age children
asked by tina 
Chemistry
Assuming all volume measurements are made at the same temperature and pressure, how many liters of carbon dioxide gas can be produced when 12.8 liters of oxygen gas react with excess carbon monoxide? Show all of the work used to solve this problem.
asked by Bob 
Health
Indirect pressure is a. a strategy to avoid doing something you don't want to do. b. being swayed to do something because people you look up to are doing it. c. someone trying to convince you to do something you normally wouldn't do. d. none of the above.
asked by Lily 
Math
The drama club raised a total of $1,123.50 selling tickets to its production of Othello. Tickets cost $4.50 for adults and $2.00 for students. Three times as many student tickets were sold as adult tickets. Which system of equations can be used to find a,
asked by Sally 
Health
Smoking marijuana over a long period of time can cause a. chronic bronchitis and damaged lung tissue. b. Alzheimer's Disease. c. tongue cancer. d. all of the above. D?
asked by Lily 
Calculus
Find the absolute maximum value and the absolute minimum value, if any, of the function. g(x) = x(^2) + 2 x + 9
asked by Starr 
Physics 203
A puck of mass 0.60 kg approaches a second, identical puck that is stationary on frictionless ice. The initial speed of the moving puck is 5.0 m/s. After the collision, one puck leaves with a speed v1 at 30° to the original line of motion. The second puck
asked by Kayla 
Spanish
I have to find the verbs in the preterite and the imperfect but I'm getting them marked wrong. 1. Mi amiga Anita siempre tenía dolor de cabeza cuando estudiaba. my answer: tenía; estudiaba 2. El diente me dolió todo el fin de semana pero el lunes el
asked by B 
Physics
Can an electron at rest in a magnetic field be set into motion by the magnetic field? What if it were at rest in an electric field?
asked by Nikki 
math
Given triangle RST, find cos T.
asked by Anonymous 
cross creek
In "A Pair of Silk Stockings," the silk stockings are a symbol of
asked by britney 
government
Provide a current event example that you think illustrates the power of one branch of government to check another.
asked by anonymous 
math
is each sum greater than or less than 4? 1.7 +0.6 +2.0 = 1.3 +0.86+1.6=
asked by cindy 
math
write an equation for 16 groups of 18.
asked by cindy 
Chemistry
The following reaction can be used to determine the amount of calcium ion present in milk. Before the reaction below is carried out ca2+ is precipitated out of a sample of milk as CaC2O4(s). The CaC2O4(s) is then titrated with MnO4. 2MnO4(aq) +
asked by John 
Math
The following data show the number of Chinese citizens who immigrated to the U.S. Use the data to predict how many Chinese immigrated to the U.S. during the 1990s. Decade No. of Chinese Immigrants 1950s 10,000 1960s 35,000 1970s 124,000 1980s 389,00
asked by nancy 
math
classify each quadrilateral.use as many names as possible. a.square b.parellagram c.trapizoid d.a bit more skinnyer parallegram
asked by cindy 
geometry
I got this problem wrong on a test and i want to know how to fix it. In triangle ABC, angle A is 20 degrees and side AC is 7.89 units, find the other sides and angles
asked by peter 
math
which quadrilateral has only one pair of parellel lines? need answer in 1 min.
asked by cindy 
calculus
sketch the curve of function y = (x1)/ (x^2x6)
asked by Anonymous 
physics
We're in class with a SIL decibel meter up front, and everyone is screaming at the top of their lungs, hooting and shouting and pounding on their desks, shooting off firecrackers, its Phys 1240 gone wild...and the meter is reading a reasonably steady sound
asked by Student in Need 
Pre Calc Trig
Verify the following: tan( a + p/2) = cot a a= alpha and p= pie since I do not have that button.
asked by Brittany 
physics
 A rugby player of mass 82kg is running at 6.0m/s. How much energy will be needed to stop him? 
asked by XxKineticxX 
Chemistry
How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.
asked by jose 
Chemistry
How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.
asked by jose 
geometry
what is the chage in volume when the length of the shipping box increases from 5 feet to 6 feet?
asked by keAnna 
Chemistry
How much heat energy is needed to transform 125g of ice at 0 degrees Celsius to warm water at 80 degrees Celsius?
asked by John Goodroe 
Chemistry
1. How much heat energy is needed to transform 125g of ice at 0 degrees Celsius to warm water at 80 degrees Celsius?
asked by John Goodroe 
Chemistry
If 3.00 mol of calcium carbonate is heated to produce calcium oxide and carbon dioxide, how many grams of calcium oxide are produced?
asked by John Goodroe 
Chemistry
If 3.00 mol of calcium carbonate is heated to produce calcium oxide and carbon dioxide, how many grams of carbon dioxide gas are produced?
asked by John Goodroe 
Math
The following data show the number of Chinese citizens who immigrated to the U.S. Use the data to predict how many Chinese immigrated to the U.S. during the 1990s. Decade No. of Chinese Immigrants 1950s 10,000 1960s 35,000 1970s 124,000 1980s 389,00
asked by Amy 
Chemistry
If 3.00 mol of calcium carbonate is heated to produce calcium oxide and carbon dioxide, how many grams of calcium oxide are produced?
asked by John Goodroe 
Chemistry
1. How much heat energy is needed to transform 125g of ice at 0 degrees Celsius to warm water at 80 degrees Celsius?
asked by John Goodroe 
chemistry
what gas law did you use to answer my questions earlier?
asked by mary ann 
Spanish
1. _______ Tiene sólo nueve años. a. ¿es su prima? b. ¿tiene Ud. hambre? c. ¿cuántos años tiene? d. ¿cuántos años tienes? I think it is D, but I do not understand the significance of an S on the end of tiene. 2. Soy hija única; ______ a. no
asked by Lace 
English
Are there any compounds besides and,but,or,nor
asked by Joseph 
grammar
Your Open QuestionShow me another » Combine sentences using the best coordinating conjunctions.? using and, but, or, for, nor,yet and sometimes so. here are the sentences and my answer. I was hungry. I ate. / my answer I was hungry, so I ate. I will go.
asked by Ann 
math
2.1L over 13hours after 5 hours 1.5 liters remain. Is there an adjustment needed what should be the adjusted flow rate
asked by Rick 
Chemistry
if i place C6H14 and KI in a test tube, then some metal salt (MNO3) is added... If the M+ reacts with and oxidizes the I, What color is c6h14? I think its purple.. but im not sure why it would be that color .. :S .. care to explain please ? and if it
asked by emily 
public health
Most of the increase in medical cost is due just to normal inflation that has affected the entire economy.” Comment on the above statement.
asked by thafer 
Math
If you can afford a monthly payment of $760 for 27 years and if the available interest rate is 5.40%, what is the maximum amount that you can afford to borrow?
asked by Meghan 
math
what is the average total 0f 60 90 and 120
asked by Audrey 
History......Help
Which of the following best describes the econmic trends of the 1920s?
asked by Pedro 
accounting
what is the total liabilites and the owners equity in the balance sheet you prepared in exam figure 4? a. $,5,906.54?
asked by barb 
Physics
A sensitive gravimeter at a mountain observatory finds that the freefall acceleration is 9.00×10−3 {\rm m/s^2} less than that at sea level.What is the observatory's altitude?
asked by Mitchell 
Science question
Will the evaporation of ocean water at the equator cause the ocean water to become more or less salty, why? Wouldn't it be because it evaporates, it will be more salty cause the fresh water is evaporating and the salt is left behind? Thanks Allyson
asked by Allyson 
Science question
How do oceans redistribute energy around the earth? Isn't this due to evaporation? Or.. the Coriolos effect? Could someone help me? Thanks Allyson
asked by Allyson 
math
What inequality represents this equation? brasstown bald mountain is highest point in GA at elevation of 1458 meters. what equation represents elevations of different parts in GA?
asked by stormy 
Spanish
Cada verano, las chicas _______ el sol. (There is a picture of two girls laying out at the beach tanning)
asked by Bee 
English
I need to interview a group of American 16yearoldstudents who are visiting our school. I hope you can help me wiht the questionnaire. Thank you. 1) How often do you have English a week/during the week/every week/per week? 3) How much free time do you
asked by Mike 
Math
How do i graph and do this problem Y=x
asked by Danny 
physics
A car traveling at 98 kilometers an hour comes to a stop in 15 seconds. What is the car's acceleration in kilometers an hour per second
asked by jon dash 
Chemistry
What happens when NaOH has been sitting for a couple of days without cover before starting the titration?
asked by Melanie 
Chemistry
What happens if a student adds distilled water to a flask before starting the titration?
asked by Melanie 
Chemisty
When the gases dihydrogen sulfi and oxygen react, they form the gases sulfu dioxid and water vapor. How od you write a balanced equation for the reaction?
asked by Debbie 
chemistry
Potential of a cell is 0.1776 volts PbPb2+(??M)Pb2+(1.0M)Pb I know i have to use Nernst's equation .. i just have no clue how to attempt this :S
asked by joshua 
geometry
what is the area of a rhombus with a 60 degree angle and sides 5 cm long? (round to the nearest 10th)
asked by Aria 
Math
The following data show the number of Chinese citizens who immigrated to the U.S. Use the data to predict how many Chinese immigrated to the U.S. during the 1990. Decade No. of Chinese Immigrants 1950s 10,000 1960s 35,000 1970s 124,000 1980s 389,000
asked by Megan 
physics
A typical steel Bstring in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s. What is the formula to solve?
asked by Student in Need 
science
i need to solve this : 1. we should show the chemical structure of oligosaccharide which contains 2 galactoses and 1 saccharose. 2. compare the difference in physical features og dicarboxylic acids and glucose beta chain 3. determine the calorific value of
asked by nina 
geometry
the perimeters of 2 similar polygons are 20 and 28. One side of the smaller polygons is 4. What is the congruent side of the larger polygon?
asked by suzie 
science
what would happen if a large amt of light colored dust was added to the atmosphere? dark black soot from fire?
asked by lo 
criminal procedure
officer Mike and Gail, while patrolling an area known to them as a high crime area, observed 2 men get out of a car after seeing the patrol car. the passenger ran from the scene while the driver began walking away from the car with his hands tucked inside
asked by loulou 
chemistry
How many grams of potassium fluoride are needed to make 250 mL of a 0.31 M solution in water?
asked by Anonymous 
chemistry
How many grams of potassium fluoride are needed to make 250 mL of a 0.31 M solution in water?
asked by Anonymous 
physics
A copper bar is initially 20 cm long at 10 degrees C. It is then heated to a temperature of 40 degrees C. What will be its new length?
asked by Crystal 
Math
Can someone please calculate this: 48(1/2)^6 The answer is 3/2, but I get 3/4. What am I dong wrong?
asked by Francesca 
Math
A circular garden has an area of 25π m2 If the . radius is increased by two meters, and fencing is sold only in one meter sections, how much fencing is needed to keep out the rabbits?
asked by Jacob 
math
what numbers would you use to estimate the sum of 47 and 21?
asked by Alison 
Chem 121
Use Hess's law and the reactions 1) CH 4(g)+ Cl 2 (g)>CH 3 CL(g) + HCl (g) 2) CH 3 Cl (g) + Cl 2 (g)> CH 2 Cl 2 (g) + HCl (g) to determine the enthalpy for the reaction CH4 (g) + 2CH 2 (g)> CH2 Cl 2 (g) + 2HCl (g)?
asked by Jessica Jones 
Algebra Please Help
Am not that great in math. Describe the different methods that can be used to find the product: (2x5)(3x1). I know there is the foil method. Describe the different methods that can be used to find the product: (5x+1)^2
asked by Tammie 
English
I included other questions. Can you please help me improve them? Thanks a lot. 1) Do you like staying with your host family? Do you think you will miss them once back in America? 2) What will you miss most about your staying in Italy? (Your host family,
asked by Mike 
Economics
You are a utilitarian social planner and have a very limited number of vaccines to a new and potentially deadly virus. How do you allocate them? Do you: (A) give them to specific groups, such as highrisk populations, or (B) sell them to the highest bidder
asked by gdlola 
math
Two angles with measures (5x+7) and (15x7) are supplementary. What is the value of X?
asked by e.c 
Spanish
A usted _______gusta jugar a los deportes. What goes in the blank?
asked by Zach 
Algebra
How can you tell whether a polynomial is written in factor form. Construct a trinomial whose greatest common factor is 2x^2. Am not understanding this...Please help.
asked by Amy L 
math
Class has 28 students. 23 like basketball. Also, 15 like baseball. 12 like both. How many students do not like either.
asked by Tracey 
equal to greater than and less than
bryce and jewel were playing with kick balls in gym class. Bryce kicked seven tenths of the kick balls into the net. Jewel kicked twenty three thirtieths of the balls into the net. Which athlete scored more goals?
asked by peter 
math
Danish used 9 balls of clay and 16 straws to make a solid pyramid. How many faces does the solid have?
asked by shane 
Physics
two point masses are located in the same plane. the distance from mass 1 to the center of mass is 3.0m. The distance from mass 2 to the center of mass is 1.0m. What is m1/m2, the ratio of mass 1 to mass 2?
asked by Jacob 
math
find the percent notation for 0.046
asked by tony 
Physics 2D Collisions
nitially, mass one (2.10 kg) has a velocity of 5.90 m/s and mass two (2.80 kg) is at rest. After they collide, mass one emerges at an angle theta = 33.0 degrees. What is the speed of mass one after the collision if the collision is completely elastic?
asked by Rob 
Physics
Find the speed at which Superman (mass=88.0 kg) must fly into a train (mass = 17998 kg) traveling at 60.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers. Calculate the minimum time Superman must take
asked by Lily 
Math
You received scores of 70, 40, 70, 90, and 40. Find the first quartile. I don't even know what a quartile is.
asked by Sammy 
Physics
A tennis ball of mass 0.0609 kg is served. It strikes the ground with a velocity of 52.5 m/s (117 mi/h) at an angle of 22.0° below the horizontal. Just after the bounce it is moving at 50.5 m/s at an angle of 17.7° above the horizontal. If the
asked by penny 
science
A cylindrical bottle of oilandvinegar salad dressing whose volume is 1/3 vinegar (p=1.01 g/cm^3) and 2/3 oil (p=.910 g/cm^3) is at rest on a table. Initially the oil and the vinegar are separated, with the oil floating on top of the vinegar. The bottle
asked by Jacob 
physics
The orbit of Halley's Comet around the Sun is a long thin ellipse. At its aphelion (point farthest from the Sun), the comet is 5.1 1012 m from the Sun and moves with a speed of 12.0 km/s. What is the comet's speed at its perihelion (closest approach to the
asked by Meisha 
math
Katie is creating cakes using 4 colors. If she creates 'x' cakes using each color. How many did she create? Write an algebraic expression for this problem.
asked by g 
Physics
The generator at a power plant produces AC at 24,000 V. A transformer steps this up to 480,000 V for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?
asked by Voltage 
social studies
Describe the evolution of integration movement in the Caribbean
asked by Simone 
job fair questions
are performance appraisals necessary why how do they enhance future performance
asked by bobi 
7th Grade Math
The area shaded is the matting and it is 64 square inches. What side length of a picture frame do you need to cover the entire picture? There is a 6inch square opening in the matting.
asked by Michelle 
Criminal Law
Should someone be force to testify or why should they testify even if they are under oath? I thought that the 5th or 6th amendment protects a person from testify even if they have nothing to hide. Is this true? Which amendment give an individual the right
asked by Sharon 
English
I added a few more sentences. I hope you can help me express them correctly. Thank you. 1) Do you like soccer (Italian football)? Is soccer popular in America? 2) Can you watch the Italian football season in America? (Do you follow the Italian football
asked by Mike 
Physics
What is the frequency of an EM wave emitted most strongly by a glowing element on a stove with temperature 1500 K?
asked by Frequency 
english macbeth
well i have a couple of questions about the tragedy of macbeth that i have no clue how to answer so if you could lend me some help i'll appriciate it. it's act 2: Q1) Though Macbeth encounters no actual opposition until long after Duncan is murdered,
asked by carol 
chemistry
a 25.0 sample of nitrogen has a volume of 50.0L and a pressure of 630. mmHg. what is the temperature of the gas?
asked by Anonymous 
Precalc
how many radians are displaced by the minute hand of a clock between 1:00 pm and 6:45 pm of the same day
asked by peter 
Physics
An elevator is moving down with an acceleration of 2.46 m/s^2. What would be the apparent weight of a 66 kg man in the elevator?
asked by M 
math
2+2=
asked by charmaine 
US History. Please, help.
How were President Truman and President Eisenhower similar? How were President Truman and President Eisenhower different?
asked by Marie. 
Chemistry.
The complete combusion of 0.5763 grams of glucose in a bomb calorimeter (Cbomb = 6.20 kJ/degrees C) raises the temperature of the calorimeter by 1.45 degrees C. what is the food value of glucose in calories per gram? (Hint: remember 1 Cal = 4.184 kJ) i do
asked by Rachel 
math
Algebra:Functions Tell whether each represents a function. Explain. Area=LenghtxWidth
asked by melanie 
algebra 2
Find the 5th term of the expression 1) (ab) ^9
asked by tris 
math (word problem)
Suppose a car tire has a diameter of 26 inches. How many rotations will thee tire make if the car travels 1 mile? Round to the nearest tenth. If you get answer please show work of how to get there. Thanks!
asked by emma 
home economics
what is an extraction rate
asked by kimberly harilall 
Canada Government
I learn about canada government. I from India. There questions I don't understand. 1. Why do some politicians think that the senate should be reformed? Identify a possible solution to the issue of Senate reform.
asked by Aishwariya 
math
what is 132+45=?
asked by angelo 
chemistry
you add 0.05ml of 0.10M agno3 to 4ml of 2.0 nacl it forms saturated solution of agcl ag+ + cl using a saturated solution you set up ag  ag+( test solution after reaction)  ag+(1.0ml)  ag how do we calc the equilibrium of ag+ of the test solution after
asked by Jeanine 
Physics
A 0.125kg baseball is dropped from rest. If the magnitude of the baseball's momentum is 0.750 kg * m/s just before it lands on the ground, from what height was it dropped?
asked by Jason 
About Paris
How are Vancouver and Paris different from one another? Ive got to name atleast 8 differences between them. 1. Paris has a population over 2 million, unlike Vancouver which only has a couple thousand. 2.The night life is different. The way the French
asked by Alice 
physics
In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45g ball acquires a speed of 41 m/s, estimate the magnitude of the force exerted by the club on the ball.
asked by Jason 
Spanish
The peoms are written that way I'm just not sure of the accent marks of some words. If you can help me,that would be great and also explain the accent marks more. that would help me in future. Thanks! First poem No sé qué te diera, por una mirada… un
asked by anon 
Physics
When spiking a volleyball, a player changes the velocity of the ball from 4.5 m/s to 20 m/s along a certain direction. If the impulse delivered to the ball by the player is 9.7 kg * m/s, what is the mass of the volleyball?
asked by Jason 
Comm 155
I need help identifying the adverbs and adjectives. I am not sure which are which. Can someone please help me figure this out? In my early years, I was not really thinking about the importance of credit. My credit was severely damaged as a result. Over the
asked by MO 
Science
describe how our solar system formed.
asked by Jose 
FRENCH
Si tu allais a Paris, que verraistu et pourquoi? I want to say that,, I would like to go to the louvre and see the painting of the mona lisa because its really famous.
asked by Strawberry 
us history
how is the 1860 vote of Missouri related to its stand on the question of secession?
asked by Anonymous 
Physics
A 5.00x10^2g block of metal absorbs 5016 J of heat when its temperature canges from 20.0 C to 30.0 C. Calculate the specific heat of the metal ..?
asked by Alayna 
chem
Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution? (c) How much heat (in joules) is liberated by
asked by pal 
Maths
If in a right angle triangle r=30cm and y=18cm wat is x?
asked by lelethu 
About Paris
Monuments in Paris... Grand Palais Saint Chapelle Le Louvre Mur de la Paix Notre Dame Any others that are well known?
asked by Alice 
Math/Corrdinate Plane
I need help with a worksheet that has a line going down with a y with positive numbers at the top and negative numbers at the bottom and the it has a line going across with an x with negative numbers on left and positive on right. It has a tic tac toe
asked by Schwann 
Pre Calc
ln (x^2 +x12)=3ln2
asked by Meredith 
About Paris
What is the quarter of the artists called in Paris? Is it the Pantheon?
asked by Alice 
Math
.5ln(x+3)lnx=0 Thanks for any help!!! :)
asked by Desprate need of Help!! 
About Paris
how are vancover and paris alike? They are both well know, good tourist attraction sites, have many things to explore. Filled with amusement. Umm... would like more ideas..
asked by Alice 
physics
A merrygoround of mass 1640kg has a radius of 7.5m. How much work is required to accelerate it from rest to a rotation rate of 1 rev. per 8 seconds? (assume a solid cylinder) /
asked by Mark 
ALGERBRA
CAN YOU PLEASE TELL ME THE SOLUTION FOR THE FOLLOWING 5X>4 BUT THE SIGN HAS A LINE UNDER IT I REALLY NEED HELP
asked by elaine 
Physics
A submarine has run into trouble and is stuck at the bottom of the ocean. Several people are on board and must make their way to the surface without any diving gear. The air pressure aboard the submarine is 3.100 atm. The air temperature inside the
asked by Jessica 
5th grade math
I am desperately trying to help my 5th grader figure out how many ways can we make this equation true 24 x 18 = 432 x
asked by mom 
History
In the 1950's, how did some corporations expand to protect themselves against the dangers of economic downturn?
asked by Kiwi 
Investment???
Erik Johnson has just become a heir to $15 000. He is 23 years old, and he has graduated from a University business program. He works as an assistant managager of a retail store. He lives with his friend in a two bedroom apartment. He saves 5% of his
asked by Math Help 
Pre Calculus 1
ln(3x1)  ln(x+2) = 2ln5
asked by Laura Grace 
Pre Calculus 1
lnx + ln(x+3) = 2
asked by Laura Grace 
marketing,,help me pls.
please can you help the advantege of metropolitan magazin. differentiate the advantage of metropolitan magazine
asked by jessie 
Physics
if the frequency of a particular electromagnetic wave is 4 x 10^14 hertz, what is its wavelength of the radiation in nanometers (nm)?
asked by RAHRAH. 
physics
The load across a 12 V battery consists of a series combination of three resistors 21 ohm, 22 ohm, and 56 ohm. What is the total resistance of the load? Answer in units of .
asked by maria 
physics
A 18.7 ohm and a 24.3 ohm resistor are connected parallel. A difference in potential of 41.5 V is applied to the combination. What is the equivalent resistance of the parallel circuit? Answer in units of ohm .
asked by maria 
math
how many ways can this equation be made true 24 x 18 = 432 x
asked by mom 
Literature. I have 25 assignments by midnight
Imagine that you are alive and in London during the Elizabethan age. You're at the Globe Theater to see a play. Describe it creatively. Refer to at least five of the details which you read about the Globe in the lesson above.
asked by Kiwi 
Physics
Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.2 m long. His speed at the bottom of the swing is 7.6 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 103 N. What is the largest mass that
asked by Becky 
Math
Robert is writting a poem. The poem is divided into 5 stanzas and is on 2 pages. There are 60 lines in the poem. How many lines are in each stanza? shoe work please
asked by Carlos 
Algebra Please Help
Can you please give a example so that I can understand it better. 1)How can you tell whether a polynomial is written in factor form. 2)Construct a trinomial whose greatest common factor is 2x^2.
asked by Sindi M 
english
i'm doing an essay about fight club. and im writing about how fight club represents modern society through the characters of the narrator (could be known as joe) and tyler durden. i'm unsure what to write for my introduction or how to do my thesis. please
asked by jewels 
chemistry
formic acid is a monoprotic acid with a ka at ml solutionof m of formic acid solution is titrated with m naoh what is the ph at the equivalence point
asked by Omar 
acc 280
E33 Conan Industries collected $100,000 from customers in 2008. Of the amount collected, $25,000 was from revenue earned on account in 2007. In addition, Conan earned $40,000 of revenue in 2008, which will not be collected until 2009. Conan Industries
asked by mar 
acc 280
P31 A Tony Masasi started his own consulting firm, Masasi Company, Inc., on June 1, 2008. The trial balance at June 30 is shown on page 129. MASASI COMPANY, INC. Trial Balance June 30, 2008 Account Number Debit Credit 101 Cash $7,150 112 Accounts
asked by mar 
Chemistry  enthalpy reivison(help)
58. When a vehicle is parked in the sunlight on a hot summer day, the temperature inside can approach 55°C. One company has patented a nonCFC propelled aerosol that can be sprayed inside a vehicle to reduce the temperature to 25°C within seconds. The
asked by Farah 
geometry
what is the area of a rectangle that's 15 feet long and 20 feet wide
asked by marilyn 
Finance
I missed one day of class and now i cannot figure this out... I thought that price and YTM relied on each other and now I have a question asking to solve for each? An 11% semiannual bond matures in 7 years. The bond has a face value of $1,000 and a current
asked by Adam 
Government
If a person had to prove his or her innocence instead of the government how would our legal system differ?
asked by Maria 
Spanish
1.Choose the correct past participle for the Spanish verb cantar. A. canté B. cantaba C. cantado D. canto C is my answer. 2. Choose the correct past participle for the Spanish verb salir. A. salía B. salió C. salido D. sale C is also my answer. Choose
asked by anon 
7th grade math
Sally makes an ice cream sundae. She can choose from vanilla, chocolate, or strawberry ice cream, fudge or caramel topping, and sprinkles or nuts. Write an expression to show how to find all the different combinations. I'm not sure how to do this. Any help
asked by hunter 
Investment
Answered below
asked by Math Help 
7th grade math
If the theoretical probability of rolling a 3 is 1/6, what is the experimental probability of rolling a 3 if the cube is rolled 300 times? Need a formula to show answer.
asked by hunter 
English
Need to write whether the verb in Transitive or Intransive. 1. John received a silver trophy. A=trans 2. The judge gave him a check for $100. A=trans 3. The contestants all played well. Answer=intrans 4. Thomas won a silver plate in a different competion.
asked by Emily 
6grade math
How many millimicrons are in 2.5 meters
asked by Aaron 
algebra 2
Find the 5th term of the expression (r+s) ^10
asked by tris 
5th Grade Math/Making a Duplicate
I need help with a worksheet that has a line going down with a y with positive numbers at the top and negative numbers at the bottom and the it has a line going across with an x with negative numbers on left and positive on right. It has a tic tac toe
asked by Schwann 
Math
what is the circumference of a circle that has a diameter of 16 mi?
asked by Judy 
chemistry
given the density of acetic anhydride to be 1.05 g/mL, what was the mass of the acetic anhydride added to the reaction? How many moles of acetic acid were added?
asked by kendalyn 
Health
I have a female red eared slider that has swollen eyes. I found out that it has a disease. I do not know where to get the antibiotics to help treat this disease and care for my turtle. If you know of any places or things I can do to help my turtle, then
asked by Ann 
algebra 2
find the 5th term for the expression (u+2v) ^4
asked by tris 
Chem
Can you show me step by step how to do the following problems? How many grams of KI are in 25.0 mL of a 3.0 % (m/v) KI solution? How many milliliters of a 2.5 M MgCl2 solution contain 17.5 g MgCl2?
asked by Kariann 
Physics
A 14,300 N car traveling at 46.0 km/h rounds a curve of radius 2.30 x 10^2 m. What is the minimum coefficient of static friction between the tires and the road that will allow the car to round the curve safely?
asked by Becky 
Human Development
Blake amuses and challenges his teachers with his independent thinking. He’s selfreliant and responds appropriately to corrections and criticism. Blake’s parents probably use the _______ style of child rearing. A. permissive C. authoritative B.
asked by smith 
Physics
A pulley system is used to lift a piano 2.6 m. If a force of 2510 is applied to the rope as the rope is pulled in 14 m, what is the efficiency of the machine? Assume the mass of the piano is 750 kg. I know the equation is eff = Wout / Win I'm just confused
asked by Becky 
geometry
am building a birdhouse. the bottom is 5" wide by 7" long. the sides are 7" long, and cut at a 45 degree angle. I need to find the dimensions of the front and back, which must sit at the diagonal.
asked by Clark 
trig
Given a right triangle with legs 8 and 5, find the measure of the two acute angles. (Round to the nearest hundredth
asked by kristy 
trig
A passenger airplane flying at an altitude of 1.8 km starts its final airport approach by descending at an angle of depression of 6°. How far along the ground is the airplane from its landing point
asked by kristy 
Math
I have to do a 4x4 magic square with the digits 2011 so that each row column and diagonal contains one 2 one 0 and two 1s. But the hard part is that the sum of each row column and diagonal has to be 4. Please help if you can i've been at it for hours and
asked by Natasia 
trig
Use the appropriate cofunction to find an equivalent expression for cos 54° cot 24 sec 32 sin 36 csc 44
asked by kristy 
dailylife
what is a cash deposit
asked by sadaf 
Chemistry
What quantity of HNO3 can be neutralized by 0.1L of 0.50 m NaOH
asked by Omar 
Chemistry
What quantity of HNO3 can be neutralized by 0.1L of 0.50 m NaOH
asked by Omar 
7th grade math
Sally makes an ice cream sundae. She can choose from vanilla, chocolate, or strawberry ice cream, fudge or caramel topping, and sprinkles or nuts. Write an expression to show how to find all the different combinations. I'm not sure how to do this. Any help
asked by hunter 
Physics
A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 8380 N/C. The mass of the water drop is 3.40 109 kg. How many excess electrons or protons reside on the drop?
asked by Anonymous 
chemistry
formulas para determinar las cantidades y proporciones o porsentage de los componentes de una mescla.
asked by salvador 
chemistry
formulas para determinar las cantidades y proporciones o porsentage de los componentes de una mescla.
asked by salvador 
News
Is the situation in Libya similar to what happened in Egypt? Why?
asked by Ann 
chem
Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution?
asked by pal 
Math
Solve the proportion for x. round your answer to two decimal places. 2x/x+10=0.04/1.85
asked by Camille 
statistics
Assume that you own a small factory. A critical piece of machinery in your factory will need to be replacedin 180 days. If the machinery does not show up on time, you will need to shut down until it arrives. This might cause you to permanately lose
asked by Bri 
math
find the slope of the line given by each equation (1) 7x+13y=91 (2) 73y=9x
asked by roy 
Accounting
A company has two major businesses that it operates. One business manufactures and sells unicycles for commercial use in circuses and so forth (total sales of $150M), and the other sells bicycles to the public (total sales of $20M). The unicycle business
asked by javon 
3rd grade math
Robert is writting a poem. The poem is divided into 5 stanzas and is on 2 pages. There are 60 lines in the poem. How many lines are in each stanza? show work please
asked by Carlos 
science
(1) what measurements and what calculation would you need to make in order to determine the density of a rectangular wooden block? (2)
asked by roy 
News
Why did another earthquake(6.6) happen in Japan? Was it an aftershock?
asked by Ann 
math
directions solve the multiplication/division puzzle. fill in the blanks. x,/ 40 600 8 ______ ______ 7 _______ _______
asked by laken 
math  Calc optimization
You are an engineer in charge of designing the dimensions of a boxlike building. The base is rectangular in shape with width being twice as large as length. (Therefore so is the ceiling.) The volume is to be 1944000 m3. Local bylaws stipulate that the
asked by J Velji 
ecomerce business
You want to bring up concerns about security with your brother. Joseph asks you, "If the Internet is inherently not secure, then why are so many business, government, and military transactions being processed online?" Your brother feels that the security
asked by Linda 
science
(1) what measurements and what calculation would you need to make in order to determine the density of a rectangular wooden block? (2) a student announced that she had made a sample of a new material that had a density of 0.85g/cm3. from the inforation
asked by roy 
english  Contrast Advertising
What are some companies that sell produtcs to the average consumer?
asked by kate 
Algebra
Square root of 14abc times the square root of 2ab
asked by Robby 
PHYSICS
5.00x 10^2 mass with charge +0.75 micro coulombs is hung by a thin insulated thread. Charge of 0.9 micro coulombs is held .15meters directly to the right so that the thread makes an angle with the vertical. What is the angle and the tension in the
asked by T 
Geometry
Find the area of the polygon with vertices at (1,3) , (7,3) ,(7,7) and (4,7)?
asked by Samatha 
phYSICS
the process of charging a conductor by bringing it near another charged object and then grounding the conductor is called... a) charging by contact b) induction c) charging by polarization d) neutralization which one of the following statements is true
asked by TS 
Pre calc
.5ln(x+3)  lnx=0
asked by Laura grace 
Chemistry
In a mountainous location, the boiling point of pure water is found to be 95°C. How many grams of sodium chloride must be added to 9 kg of water to bring the boiling point back to 99°C? Assume that i = 2. So what will my answer be in grams?
asked by Irma 
Chemistry
Urea, (NH2)2CO, is dissolved in 73.5 g of water. The solution freezes at 0.095°C. How many grams of urea were dissolved to make this solution? (Answer must be in grams)
asked by Irma 
geometry
what is the area of a rhombus with a 60 degree angle and sides 5 cm long? (round to the nearest 10th)
asked by Aria 
math
circle has a center at (8,4) and circumference of 32.determine equation of the circle
asked by Anonymous 
Communication Arts
I don't get it... It says "Look at the list of words. Rewrite them in the appropriate categories. Circumference, Monosyllabic, Commune, Epidural, Detrimental, Epicenter, Devastate, Circumnavigate, Community, Monogamy Categories: (Around) (Opposite, From,
asked by Orion 
Chemistry
You mix 1.00 L of 2.00 M BaCl2 with 1.00 L of 2.00 M AgNO3. What compounds remain in solution, and what are their concentrations?
asked by Charlie 
Chemistry
a mixture of methane CH4 and ethane C2H6 is stored in a container at 294 mmHg. The gases are burned in air to form CO2 and H2O. If the pressure of CO2 is 346mmHg at the same temp and volume as the original mixture, calculate the ratio of moles of CO2
asked by Carolyn 
Chemistry
a mixture of methane CH4 and ethane C2H6 is stored in a container at 294 mmHg. The gases are burned in air to form CO2 and H2O. If the pressure of CO2 is 346mmHg at the same temp and volume as the original mixture, calculate the ratio of moles of CO2
asked by Carolyn 
chemistry
a solution contains 100g. H2O, 10g. NaCl and 15g. of methanol. What is the weight percent of methanol; in the solution?
asked by victoria 
General
Are their any search engines I can use besides bing and google? Any places I can access historical journals? Thanks!
asked by JJ 
ETH
Should United States government policy favor certain kinds of immigrants?
asked by =) 
chemistry
If a bottle of nail polish remover contains 179 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 {\rm{g}}/{{\rm{mL}}}
asked by Anonymous 
chemistry
What is the pH of a solution prepared by dissolving 6.0 g of HCl in water to make 415 mL of HCl solution?
asked by Chuck 
Literature. The Odyssy
What are 3 reasons Odysseus was an epic hero?
asked by Kiwi 
geometry
An Equilateral triangle (ABC) is inscribed inside a circle. The side lengths of the triangle are 8 cm. What is the radius of the circle?
asked by Katy 
7th grade
use backtracking to solve each e quations ?. 2x +1=9, 7k3=32, 5(n8)=25 2(2t1)=14 8x1=63 ,2x5=15,
asked by holiday 
7th grade math
find a solution method use backtracking to solve equation; 54=6 (47V) _______ 2 7b+1 =2 __________ 4 8(56+12 1) =64 _____3______
asked by holiday 
algebra
A cable 25 feet long runs from the top of a utility pole to a point on the ground 18 feet from the base of the pole. How tall is the utility pole?
asked by Francisca 
English
e.g. Can you repeat what he said? 1. Can you repeat the thing which he said? (what =relative pronoun) 2. Can you repeat___? + What did he say? (what=interrogative pronoun) (What does the example sentence mean? Does it mean #1 or #2? Is 'what' a relative
asked by rfvv 
math
3#3  8
asked by anyonams 
trig
solve csc^2x=3 for all possible solutions
asked by Lindsey 
Chemistry
A beaker with 200 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.40 mL of a 0.400 \it M \rm HCl solution to the beaker. How much will the pH
asked by Bobby 
PreCal
Four couples have reserved seats in a row for a concert. How many ways can they be seated if the two members of each couple wish to sit together? How do I go about doing this problem? I'm not sure what/how I should multiply this out...
asked by Norah 
Math
what is 1/5 in base 5?
asked by irma 
physics
A 14 kg body is moving through space in the positive direction of an x axis with a speed of 220 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.4 kg, moves away from the point of explosion with a speed of 190
asked by john 
phySICS
PHYSICS when a positive charge moves under the influence of an electric field's electrostatice force, what happens to the electrical potential energy of that charge?
asked by TS 
math
You meet a woman who tells you. "I have two children. One of them is a boy." What is the probability that both children are boys?
asked by Jamie 
Chemistry
If you have constant volume of gas how can you determine the number of moles it has? what equation do you use if your not given the constant volume value?
asked by Sarah 
stoichiometry
How many moles of hydrogen are needed to completely react with 2.0 moles of nitrogen? N2 + 3H2  2 NH3
asked by gail 
math
pauline has 35 cups of flour. She makes cakes that require 2 1/4 cups each. if she makes as many such cakes as she has flour for, how much flour will be left over?
asked by irma 
Math
Using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?
asked by Michelle 
Chemistry
If 25.5 grams of NaOH is dissolved in 750 ml of water, find: [H+]= [OH]= pH= pOH=
asked by John 
chemistry
Calculate the Rate constant, k, at 20 degrees C and 30 degrees. run 13 slope avg is .03439 slope at 30 degrees is .10554
asked by ryan 
Chem I
How many moles of carbon atoms are found in 6.24 x 10^22 carbon atoms?
asked by Nicole 
math
a. The sales representative informs you that there is a total of 96 houses for sale. Of these 96, some have one floor plan while the others have a different floor plan. Use x to represent floor plan one and y to represent floor plan two. Write an equation
asked by valerie 
math
a. The sales representative informs you that there is a total of 96 houses for sale. Of these 96, some have one floor plan while the others have a different floor plan. Use x to represent floor plan one and y to represent floor plan two. Write an equation
asked by valerie