Questions Asked on
August 15, 2010

Physics
You are trying to overhear a juicy conversation, but from your distance of 15.0m, it sounds like only an average whisper of 25.0 dB. So you decide to move closer to give the conversation a sound level of 70.0 dB instead.How close should you come.
asked by Veronica 
Math
A pair of fair dice is rolled. Let E denote the event that the number landing uppermost on the first die is a 3, and let F denote the event that the sum of the numbers landing uppermost is 6. Determine whether E and F are independent events
asked by Jack 
Physics
I need help solving this please! I think that for part (b) I can use energy and wavelength to solve for frequency and the one with the highest frequency is the most damaging, but I'm not sure what to do for part (a). You want to study a biological specimen
asked by Brianna 
math
Four blue socks, four white socks, and four gray socks are mixed in a drawer. You pull out two socks, one at a time, without looking. a. Draw a tree diagram along with the possible outcomes and the probabilities of each branch. b. What is the probability
asked by kirk 
chemistry
Assume that gaseous hydrogen iodide is synthesized from hydrogen gas and iodide vapor at 50 degrees celcius where the equilibrium constant is 1.00 x 10^2. Suppose HI at 5.00 10^1 M, H2 at 1.00 x 10^2 M, and I2 at 5.00 x 10^3 M are mixed in a 5.0 L
asked by Anonymous 
Physics
You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball’s speed just at it leaves the ground after the bounce?
asked by Sasha 
math
Find the ratios in which the spheres x^2+y^2+z^2=24 divides the line joining the points (1,1,2) and (4,4,8)
asked by pankajv 
chemistry
When 10.0 mL of 0.012 M pb(NO3)2 is mixed with 10.0 mL of 0.030 M KI, a yellow precipitate of PbI2(s) forms. a)Calculate the molarity of [Pb^2+] b)Calculate the initial molarity of [I^] c)On measuring the equilibrium concentrations of [I^] it came out to
asked by Anonymous 
finance
Consider the following data for a onefactor economy. All portfolios are well diversi ed. Table 1: Onefactor Economy Portfolio E(r) Beta A 10% 1.0 F 4 0 Suppose another portfolio E is well diversi ed with a beta of 2/3 and expected return of 9%. Would an
asked by Anonymous 
PreCal
Janine, a science student, measured the volume of carbon dioxide gas that can be absorbed by one cubic centimeter of charcoal at pressure x. She made the following four sets of measurements: (120, 3.1) (340, 5.5) (534, 7.1) (698, 8.3) Janine finds that the
asked by Anonymous 
chemistry
If the molar solubility of lead iodide is 2.4 x 10^3M. Calculate the Ksp.
asked by Anonymous 
physics
A train passing at point A at a speed of 72 kph accelerates at .75 m/s2 for one minute along a straight path then decelerated at 1.0 m/s2. How far in km from point A will it be 2 minutes after passing point A?
asked by nonoy 
Trigonometry
At the ocean, it is known that the tide follows a trigonometric path. At high tide, the water comes in to a point 1 meter from where I placed a flag. At low tide, the water comes in to a point 11 meters from the same flag. The time it takes from to get
asked by Fred 
business law
Lorraine Haley, Tandy Hager, and Dean Madison decide to incorporate their detective agency, but fail to follow proper procedure. They sell stock to Darrell Lovett and persuade him to become a corporate officer. Lovett purchases a computer for the firm.
asked by Sarah 
physics
A ball with a mass of .2 kg travelling at a speed of 26 m/s is struck by a bat. If the duration of the impulse is .001 seconds and the speed of the ball afterwards is the same as before, what is the average force (to the nearest Newton) of the impact?
asked by Skyler 
College Algebra
A manufacturer determines that the profit in dollars for manufacturing n units is P=2n^260x400. (Assume that n is a positive integer) How many units are produced when the profit is $400?
asked by Gallaudet 
physics
A 8.5 kg steel ball, travelling left to right at 12 m/s, undergoes an elastic collision with a 5 kg steel ball at rest. To the nearest Joule, what is the Total Kinetic Energy of the two balls after collision?  If the first ball in the question above
asked by Skyler 
Math
Explain why the statement is incorrect: The probability that a bus will arrive late at the Civic Center is 0.35 and the probability that it will be on time ore early is 0.60
asked by Stephanie 
math
Given these sets: A = {1, 2, 3, 4} B = {3, 4, 5, 6, 7} C = {3, 5, 7, 9} List the elements of this set C ¿ (A u B) Do I list the numbers in C that is not in A and B?
asked by Madison 
MicroEconomics!!!
Can you help me with these 16 Questions? I have shown my answers that i thought were correct for all but 2 of them. Do you mind letting me know what you think. Thank you so much. Anything will help!! I have placed an *****. By the ones i think are right!
asked by Danielle 
chemistry
The reaction of the ferric ions with isocyanate ions is an exothermic reaction. In what direction would you expect the equilibrium to move if the solution temperature is raised? Would the color of the reaction intensify? Explain. What would happen if you
asked by Anonymous 
managerial economics
An article in BusinessWeek warned of the dangers of deflation as the collapse of numerous Asian economies was creating worries that Asia might try to "export its way out of trouble" by oversupplying everything from automobiles to semiconductors. Evidence
asked by tina 
chemistry
hi Dr Bob..can you please help me with this chemistry problem? I got problem dealing with the chemical formula.How i want to find the number of moles of 2g of Fe(NH4)2(SO4)2.6H2O???please help me.Thank you
asked by tarra 
chemical equilibrium
if the pressure of n2/h2 in aclosed apparatus is 100 atm and 20 percent of the mixture then react ,the pressure at the same temperature would be
asked by bharat 
chemistry
how many moles of LiF would be required to produce a 2.5 M solution with volume of 1.5 M?
asked by kirari 
calculus
lim tan x  x/ x > 0 x^2
asked by Lereesa 
Physics
A pendulum has a mass of 3kg, a length of 3 meters and swings through a (half)arc of .47 radians. To the tenth of a Joule, what is its Total Energy?
asked by Skyler 
physics
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +18.0 m/s2. A parachute then opens, slowing the car down with an acceleration of 6.30 m/s^2. How fast is the racer moving 2.70 x 10^2 m after the parachute opens?
asked by Anonymous 
economics
Suppose George is making $18 an hour installing electronic chips in hand held computers. Would your offer to work for $8 an hour get you the job? Why might a profitmaximizing employer turn down your offer?
asked by Glo 
Earth
Has the issue of global warming been solved already? I mean, the Kyoto accord will expire in 2012. And are the glaciers of the North & South Pole melting even more?
asked by AL 92 
physics
A pendulum has a mass of 3kg, a length of 2 meters and swings through a (half)arc of 27.3 degrees. What is its Amplitude to the nearest centimeter ?
asked by Skyler 
Business Communications
When you are writing subject lines for negative messages to peers and subordinates: A. put the topic, but not your action on it, in the subject line. B. put the topic, including your action on it, in the subject line. C. do not include the topic in the
asked by Rain Misoa 
Math
From a window in room 7, one can observe the front door of Phillips Hall, which is about 45 yards away. A turn of the head trough an angle of 63 degrees in a counterclockwise direction enables one to see the front door to Jeremiah Smith Hall which is about
asked by Kyle 
Algebra
Two cyclists leave towns 240km apart at the same time and travel toward each other. One cyclist travels 10km/h slower than the other. If they meet in 5 hours, what is the rate of each cyclisst?
asked by Ian 
medical
when must a notice of use and disclosure be provided
asked by ky 
physics
A pendulum has a mass of 3kg, a length of 1.3 meter, and swings through a (half) arc of 30 degrees. To the tenth of a Joule, what is its maximum Kinetic Energy?
asked by Skyler 
english
how do you make a timeline for a sixth grade reading assignment
asked by Ao 
English II
Explain how The Federalist Papers would have been more or less successful if newspapers had been printed monthly (rather than daily or weekly
asked by Betty 
statistics
A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular jobskills training program. The cutoff "t" needed is 1.8333. The standard deviation of the
asked by Anonymous 
math 116
In 1991, the life expectancy of males in a certain country was 72.8 years. In 1995, it was 75.9 years. Let E represent the life expectancy in year T and let T represent the number of years since 1991. The linear function E(t) that fit the data is
asked by Tanya 
Geometry
Four identical metal spheres, each with radius 6 cm, are melted and reshaped into one big sphere. Fine the radius of the new sphere.
asked by Kyle 
college
I need help writing an outline for a persauasive essay?
asked by Christine 
algebra 2
I'm stuck on this one: factoring polynomials from algebraic expressions (and it says you can use the substitution method): 3m^2(2p^2+3)over (x^2+y)(2xy^2) minus 6m(2p^2+3)over (y^2x)(2xy^2)= Do I find the GCF? I get 3m(m2) over (x^2+y)(2xy)(y^2x)
asked by dan 
ETH125
Consider the differences between arabs, muslims, and arab muslim extremist and fundamentalist. What may be done to maintain the american guarantees of religious freedom and increase knowledge about muslims and arabs?
asked by cynthia 
business
MGT6351003B04 International Business Operations Management Assignment Name: Unit 5 Individual Project Deliverable Length: 67 body pages Details: As the production manager for an electronic circuit company you have encountered the following situation.
asked by 1SGCalhoun 
microeconomics
Suppose that in 2008, you became president of a small nonprofit theater company. Your playhouse has 120 seats and a small stage. The actors have national reputations, and demand for tickets is enormous relative to the number of seats available; every
asked by mimi 
managerial economics
An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice conscerning the airline's high operation costs in the current quarter: "You don't have enough aircraft to operate
asked by tina 
managerial economics
An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice concerning the airline's high operating costs in the current quarter: "You don't have enough aircraft to operate efficiently.
asked by tina 
Psych
I am writing a power point on 5 components of wise judgements. Below is my subject which I have to develop the 5 components of wise judgement. I am totally clueless, the material given in school does not specify those components. A teenage girl is “in
asked by Lona 
math 116
solve by the elimination method. 7r3s=53 3r+7s=31 What is the solution of the system?
asked by Tanya 
Statistics
I don't know where to start with this in Excel. Player Rating TD% Inter% Steve Young 96.8 5.6 2.6 Kurt Warner 95.7 5.5 3.5 Daunte Culpepper 93.2 5.4 3.1 Peyton Manning 92.3 5.6 3.1 Joe Montana 92.3 5.1 2.6 Trent Green 87.9 4.7 2.9 Tom Brady 87.5 4.8 2.6
asked by Jennifer 
physics
When a capacitor are plugged into the battery, what happens to the Q(charge), potential difference, and C. It would have the same effect if two capacitors connected in parallel plugged into the battery
asked by blast 
Business Communications
Is the subject line "Improving Customer Service" appropriate in a message to superiors? A. Yes, because it focuses on solving the problem. B. No, because the word "service" makes the subject line seem negative. C. No, because the boss is likely to think
asked by Rain Misoa 
Chemistry
Suppose you are given a sample of a homogeneous liquid. What would you do to determine whether it is a solution or a pure substance?
asked by Shannon 
math
24 tacks are used to fix the 3ply to the back of the unit these cost $12 per 1000 cost of the thacks (rounded th the nearest 5 cents)
asked by catherine 
maths
find the price you will be paying for each item kite:$20 tax:7% books:$18.5 tax:9% laptop: $1,200 discount:20% cellular:$230 discount:35% sunglasses:$120 discount:40%
asked by rula farkash 
Calculus
A 5m long ladder rests on a vertical wall. if the bottom of the ladder slides away from the wall at 1m/s, how fast is the angle between the lader and the ground changing when the bottom of the ladder is 3m from the wall?
asked by Lereesa 
Albegra
I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3  2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.
asked by Ava 
calulus
lim tanx  x x>0 x^2
asked by Lereesa 
Albegra
I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3  2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.
asked by Ava 
Albegra
I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3  2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.
asked by Ava 
pharmacy
how much interest will mary owe if she borrows $2000 at a rate of 6% for 2 years?
asked by Mely 
adv.alg/trig
Square root of 300
asked by lola 
Math
A cubic model of the yearly worldwide carbon emissions is W=0.051x3 + 2.93x2 + 74.6x + 1589 where W is the weight of the emissions in millions of tons and x is the number of years since 1950. Use synthetic division to evaluate the model for the year 1960.
asked by Jessica 
managerial economics
Should a manager hire a new person if they are going to cause a diminishing returns?
asked by tina 
statistics
A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular jobskills training program. The cutoff "t" needed is 1.8333. The standard deviation of the
asked by Anonymous 
Algebra
use the laws of exponents to simplify 3 3/4 * 3 1/8 Please help!!
asked by Vivabee 
Radical exponents
Use rational exponents to write 4suare root 5 * 2 sqaure root 8 Please help.. I can't find the square root button
asked by Ava 
Earth
So how long will global warming last for in the future? Remember the movie, "The Day After Tomorrow"? The whole world might experience all those disasters depicted in the movie.
asked by AL 92 
Business Communications
Which alternative indicates the message(s), if any, which can spend considerable time discussing negative aspects of a situation? A. Direct requests B. Persuasive problemsolving messages C. Sales messages D. Clearance messages This one gave me a bit more
asked by Rain Misoa 
Anatomy & Physiology
Trace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to lift a glass of water to drink.
asked by Anonymous 
Exponents
I need to know if i answered this right. Use the laws of exponents to simplify. 3^3/4 * 3^1/8= 81/32
asked by Ava 
accounting
I have need to descirbe two business factors that I might wnat to work for. I am lost can someone give me an example of what this is asking for???
asked by Tracie 
Cultural Diversity
What does "glass ceiling, glass walls, or glass escalator mean"?
asked by michelle 
math 117
can someone help me with this radical numbers problem? (2suare root 8)(2square root 8) would it be 2 square root 4?
asked by Johny 
jjjj
When does the Narrative of Sojourner Truth take place?
asked by ujj 
Math
Add: 5 squared(4 squared 2  6 squared 25)= thanks
asked by Amber 
Cultural Diversity
Through out history have the Colonized English been effected by any of the following forms of discrimination, or did they participate in any of the following forms of discrimination? Dual labor market, environmental justice issues, affirmative action,
asked by michelle 
week 7
Your company has had a very profitable year and is looking to expand their employee benefits. As an employee in the benefits department, you have been asked to prepare a report to persuade your company administrators that adding tuition reimbursement for
asked by Anonymous 
XCOM/285
Your company has had a very profitable year and is looking to expand their employee benefits. As an employee in the benefits department, you have been asked to prepare a report to persuade your company administrators that adding tuition reimbursement for
asked by Anonymous 
calculus
lim x> 0 if tan x  x / x^2
asked by Lereesa 
geology  thank you
Thank you so much Ms. Sue and merci beaucoup SraJMcGin. I have found the term I was searching for; it is BAJADA.
asked by E.G. 
Science
Why does the water of lakes and oceans look alike?
asked by Abby 
Essentials of Managerial Communication
Discuss how technology could be used to facilitate crosscultural communication.
asked by Nancy 
space
what are the international aspects of the international space station
asked by glen 
childcare
i am posting a question and an answer please help? neuron development and elaboration, a. aural prompts from the family, school, and environment b. physical movement on the part of the child c. intake of foods rich in vitamins and minerals d. exposur to
asked by action 
childcare
Repeating Ms.Sue. Thanks for your keen observation. Beuron development and elaboration, which occurs between birth and age 10, is prompted by: A. aural promts from the family, school and environment B. Physical moement on the part of the child C. Intake of
asked by action 
childcare
Writeacher: The correct word is Neuron not Beuron. My apologies.
asked by action 
math
On a roulette wheel, the probability of winning when you pick a particular number is . Suppose you bet $1.00 to play the game, and if your number is picked, you get back $36. a. Is this a fair game? b. What would happen if you played this game a large
asked by Amy 
Calculus
If P'(t)= [10(t+2)]/t. What is P(t)? It is asking for the derivative, and I am so lost! Because so far we haven't covered how to find the derivative of something so complicated. Any ideas? TY
asked by Jaimie 
poem
I am looking for this quote I cannot remember it Go placidly amongst the midst and haste
asked by action 
Algebra
I'm stuck on this probelem with radicals.. can someone help me? (Radical 7 +1)(3radical 7 +1)
asked by Daisy 
Business Communications
As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses
asked by Rain Misoa 
US History II
Popular Sovereignty was related to Lincoln because he didn't like the idea of half free and slave states? Just making sure.
asked by Amy~ 
health
which of the following is a suitable toy for a toddler
asked by Li 
accountingexplain
April.4 purhcase merchandise from RediX, Inc.,$1900;term 2/10, n/60,FOB shipping point, frieght of $85 added to the invoice. April 10 returned $850 of merchandise to Redix.Inc. perpetual invetory: April 4 (Debit) Inventory $1985 (Credit) Accounts Payable
asked by Thara 
maths
find the price you will paying for each item a. jacket: $125 tax:5.5%
asked by rula farkash 
stoichemistry
4Fe+3o2 =
asked by tom 
US History II
Which one would be right: America's independence from England or Britain?
asked by Amy~ 
pharmacy
A CERTAIN MIXTURE CALLS FOR 6MG OF AMOXYCILLIN TO 15 LITERS OF WATER.? HOW MANY LITERS OF WATER WOULD YOU NEED FOR 12MG OF AMOXYCILLIN?
asked by Mely 
Critical thinking
What are the strengths and weaknesses of reversible decisionmaking?
asked by One tired mom 
Managerial Economics
Skateoards sell for $70. During the past year they sold 4,000 skateboards. The company beleives that the price elasticity for product is 2.5. If it decreases the price to $63, what would be the quantity sold?
asked by Janet 
Calculus
Find f(x)' of f(x)=x^x^x I logged both sides to get ln y = x^x ln x But I am not sure what step to do after that.
asked by Jaimie 
Algabra
Train A travels at 100 mph in the same direction. Train B travels at120 mph on a parallel track. Train A passes a station at 8:25 pm, Train B passes the same station at 8:37 pm. What time will Train B catch Train A?
asked by Kelly 
geology
I know that a peneplain is a flat area due to erosion, but what is the term for a flat area due to deposition? I am generally very successful with searching the internet, but I could not find the term I am looking for. Could you please help? Thank you!
asked by E.G. 
Litature
What is Utnapishtim statement on life
asked by Mary 
chemistry
which one of the follwoing will result in a chemical change ?
asked by Anonymous 
physics
Science isn’t about proving anything
asked by Anonymous 
managerial economics
Should a manager hire a new person if they are going to cause a diminishing returns?
asked by tina 
physics
When you make a turn, in what direction does your body (and all loose items in the car) want to go? In what direction are you actually pushed? Why?
asked by Anonymous 
COMM
is paying a form of present progressive when it comes to verb tense?
asked by Maryann