Questions Asked on
April 30, 2011

physics
If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value.
asked by ashley  
physics
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time
asked by ashley  
physics
Marks: 2 The time taken by the space craft moving at a speed equal to half the velocity of light to go from star A to star B is 2 years as calculated at the Earth station. Which of the following is correct for the time measured by the astronaut in the
asked by ashley  
physics
Marks: 2 The time taken by the space craft moving at a speed equal to half the velocity of light to go from star A to star B is 2 years as calculated at the Earth station. Which of the following is correct for the time measured by the astronaut in the
asked by ashley  
physics
An observer measures the length of an object. In which of the following cases is the measured length at a minimum? Choose one answer. a. The observer and the object move with the same speed v in the same direction. b. The observer and the object move with
asked by ashley  
math
Can you tell me if I have the correct answer to this problem. A formula to determine the area of a person’s skin in square inches is s=15.7w^0.425 h^0.725 where w is weight in pounds and h is height in inches. Use S to estimate the area of a person’s
asked by patiance 
Physics Urgent!!!!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked by Abi 
math
if john mowes his lawn in 2 1/2 hours how much of the lawn does he mow in 1 hour?
asked by lisa 
Physics (please help)
A planet is in circular orbit about a remote star, far from any other object in the universe. Which of the following statements is true? a. None of the other statements are true. b. There is only one force acting on the planet. c. There are two forces
asked by Catherine 
calculus
Choose the correct quantity to fill in the blank: Integral_______ dx = (ax2  a2)4 + C.
asked by Todd 
calculus
Choose the correct quantity to fill in the blank: Integral_______ dx = (ax2  a2)4 + C.
asked by Todd 
Calc 2
Consider the line passing through the points (2, 1) and (2, 3). Find the parametric equation for y if x = t + 1.
asked by Vance 
Calc 2
Find the second derivative (d2y/dx2) for the curve given by x = 2·cos() and y = sin()
asked by Vance 
Calc 2
Find the corresponding rectangular coordinates for the polar point (4, /6).
asked by Vance 
statistics
an employee earning $10.85 per hour has been awarded a 3.5 percent increase. What is the hourly salary
asked by Anonymous 
Math
Mary B deposits $8500 into a savings account, compounded monthly at a nominal interest rate of 9 percent, as part of a savings plan that she would like to undertake in 5 years. 1) What is the effective interest rate per annum? 2) How much money would she
asked by Randi 
spanishcollege essay!
Se puede revisar mi ensayo por favor? Es un ensayo de colegio. Gracias! Cuando la mayoría de la gente oye la palabra “El machismo” se la asocia con el sexismo. Se piensa que las mujeres y hombres son desiguales. Se pregunta: ¿por qué las mujeres
asked by Talia 
Maths
Peter invests $12500 for 5 years at 12 percent per annum,compounded monthly foe the first two years, and 14 percent per annum compounded simiannually for the next three years. How much will Peter receive after five years?
asked by Randi 
Math
Dominic was 8 years old when his sister was born. Now the sum of their ages i 56. How old is Dominic now?
asked by HELP!!! 
Mathematics
What are consecutive numbers? The sum of TWO consecutive whole numbers is 99. What are they? The sum of THREE consecutive whole numbers is 99. What are they? Can someone please show me if there is working out? (if needed)
asked by Crissy XD 
math
4,35,60,440 expand in words
asked by padma 
English
I still have the following doubts. I included the various alternatives. Thank you 1) Prospero calls Caliban a lying slave instead Miranda calls him a horrible slave. Is "instead" correct? I would have used "while, whereas" or I would have started a new
asked by Henry 1 
CHEM (HELP PLS)
Suggest the syntheses of putrescine and cadaverine from ethyl bromide I don't think I can use Grignard can I? PLEASE HELP. CH3CH2Br + CH3CH2Mg/EtoEt > CH3Ch2Ch2Ch2MgBr + NaN3/EtOH > CH3Ch2Ch2Ch2N=N=N + LiAlH4/H20 CH3Ch2Ch2Ch2NH2? Then what? does this
asked by lauder 
CHEM (HELP PLS)
Suggest the syntheses of cadaverine (pentane1,5diamine) from 1,5Dibromopentane
asked by lauder 
English
i forgot to include the following sentences. Thank you. 1) You keep mispelling the word "together". Rewrite it correctly at least 10 times. 2) Particular attention was paid to the setting (was given is a mistake?) 3) The novels are preceded by a preface,
asked by Henry 1 
English
The problem is I don't know how to answer this question. Many writers create characters who are blissfully unaware of how they are perceived by others. One of the most complex examples of this is Chaucer's Pardoner. In one character we see a complex mix of
asked by ChrystalJhean 
Maths
From this past 4 results 1790488441. 466156485. 7841655054. 5270304229. Can anyone predict the next 5/90 lotto winning numbers please
asked by Steve 
chemistry
describe how you can crystallize potassium nitrate from its aqueous solution
asked by ziki 
probability
Ryan spent a dollar on a TriState Megabucks ticket, enticed by a big jackpot. Ryan chose six different numbers from 1 to 40, inclusive, hoping that hey would be the same numbers draw later by lottery officials. Sad to say, none of Ryan's choices were
asked by jane 
maths
cos(a+b)=m(cos(ab) then tan a=?
asked by pooja 
islam
a.What does “seven earths” as implied in verse 12 surah atTalaq actually mean? b.Why does the Quran use only a singular noun(alardhu) when describing the earth(or seven earths) in this case whereas when describing seven heavens a plural noun
asked by fidah 
English
1. He made them be quiet in the library. 2. He made them quiet in the library. 3. He had them be quiet in the library. 4. He had them quiet in the library. 5. He watched them be quiet in the library. 6. He watched them quiet in the library. (Which ones are
asked by rfvv 
Math
Could someone answer this question so I understand it. Thanks Find the supply function: p = S(x)=5(e^0.02x  1) Find the average price (in dollars)over the supply interval [31,36]. Round to decimal places as needed. The average price in dollars is ?
asked by Jules 
English
1. I would prefer not to eat that. 2. He slaved at his job so his family would have everything they needed. 3. Your cholesterol balance is good. 4. He slipped into the room. 5. Clip two sheets of paper together. 6. The whole universe knows it. 7. I won't
asked by rfvv 
Chemistry
Suppose a compound could point in any of two directions in the solid and still have the same energy. How many molecules would there be if the total entropy of a solid sample of this compound was 8.174e9J/K I used S= klnW and got lnW = 5.92e14. How do i
asked by Jude 
College math
Highwq curves. If a circular curve without any banking has a radius of R feet, the speed limit L in miles per hour is L = 1.5 aqrt(R) (a) Find the speed limit for a curve having a radius of 400 feet. (b). If the radius of a curve doubles, what happens to
asked by Shin 
com156
courses per year the total comes to $8,760. With this information financial aid does not begin to cover my tuition for a year. The only other option I have is to apply for a student loan, scholarship, or a credit card. There’s a downside to using a
asked by kim 
physics
If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value.
asked by ashley  
physics
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time
asked by ashley  
Chemistry
The free energy change for the dissolution of cuco3 at 25celsius is 56.246KJ/mol. What is the solubility of this compound. I used delta G/RT = lnKsp but the answer i got was wrong.
asked by Jude 
math
2 questions please 6x
asked by wayne 
algelbra 2
I have a 3.50 but have 7 disks problem and can't think straight, my last class before i graduate. I need answers to Math 117 week six quiz? Can u Help, just put $ in pay PaL.
asked by Deb 
Life orientation (research)
Research one factor that causes ill health , accidents , crises or disasters: 1) alcoholism
asked by Bheki 
Math(Please help)
1) h(t)=20(5/8)  16(5/8)^2 + 10 = 65/4 All I need to know for this is how to calculate the fraction parts to get 65/4. I am not good with fractions. 2) A manufacturer's profit from producing x units of a product is given by P(x)=0.002x^3  0.01x^2 + 0.5x.
asked by Hannah 
art
Titles of works and company names should be treated as singular nouns. For example: “The Secret Life of Bees is a novel that was made into a movie last year.” true or false
asked by Anonymous 
AP Chemistry
So... this is the question which is from AP chem 2006 past paper. Suppose that a stable element with atomic number 119, symbol Q, has been discovered. a) write down the groundstate electron configuration of Q, showing only the valenceshell electrons.
asked by  
English
Can you please check if the two answers to the questions (3/4) are correct? It's really urgent. Thank you. 1)Jamal is planning a trip around the world on his motorbike with his friend Simon. 2)They are going to leave from London next week. Then they will
asked by Henry1 
world history
is pennsylvania's government a monotheistic or not?
asked by Seth 
Calc
Consider the line passing through the points (2, 1) and (2, 3). Find the parametric equation for y if x = t + 1.
asked by Alex 
physics
These are problems I have been stuck on and can't figure out. Help would be greatly appreciated. 1. Blue and yellow light combinte to produce white light because ______ (Please explain what it's the correct answer) a.they absorb each other's wavelengths b.
asked by Josh 
Math(Please help)
1) where is the function f(x)= 5 / (2x4)^3 increasing. I know the answer is for all of x but I do not know how to get this. I know that you can write the equation as 5(2x4)^3 2) Let a, b, and c be fixed with a>0 and let f(x)=ax^2 + bx + c. Which of the
asked by Hannah 
calc
Find the corresponding rectangular coordinates for the polar point (4, /6).
asked by Alex 
chemistry
What mass of the following would be needed to make 50 ml of 0.100 M solution? (i) KOH (ii) Na2CO3 (iii) NaHCO3 (iv) Na2CO3•10H2O (v) Ba(OH)2 (vi) KMnO4
asked by Anonymous 
English
In my previous post I didn't include the USA when mentioning the countries they are travelling through. Shall I include it? Can you please check again? Thank you. 1) Which countries are they travelling through? They are travelling through Ukraine,
asked by Henry1 
calc
Let f(3) = 0, f '(3) = 6, g(3) = 1, and g '(3) = 1/3. If h(x) = f(x)*g(x), find h '(3).
asked by Todd 
math
how do i find the cubed root of anumber
asked by steve 
math
is it possible for two rays to be parsllel to each other is it possible for two rays to be parallel to each other
asked by esha 
Etymology
So I posted like 34 weeks ago that I was doing a project about fascinating etymology stories and I got a few great websites:) I only could find a few really funny and interesting stories that my classmates would actually enjoy/ want to listen to. I have
asked by Rebekah 
science
what is the state of matter in which particles have lowest energy
asked by loser 
math
Interest= 472.50 principal= 750 rate=7% time=???
asked by sasha 
science
the ______ value indicates the amount of resistance in 1cm of insulation
asked by loserisuck 
English
I forgot to include the following sentences. They are really urgent. 1)He hadn't read a book since he was a boy/ "by the time he was a boy he hadn't read a book (is a mistake?) 2) She told me she had dumped him/broken/finished with him. (are they all
asked by Henry1 
math
If $3000 is deposited at the end of each half year in an account that earns 6.2% compounded semiannually, how long will it be before the account contains
asked by yeah 
math
If $3000 is deposited at the end of each half year in an account that earns 6.2% compounded semiannually, how long will it be before the account contains $130,000?
asked by yeah 
Algebraic Expressions
2 / (x1)^3 + 3 / (x1)^2 + 4 / x1 Two of us get 4x^2  5x + 3 / (x1)^3 The book gives 4x^2  5x + 3 / (x1)^3 Can anyone help with this one.
asked by tish 
Chemistry
So I am writing a lab report and Im stuck with calculating the enthalpy change of combustion of the following reaction: Mg+2HCl> MgCl2+H2 .I am given the mass of Mg which is 5g and the concentration of HCl which is 2M and the volume of HCl which is 50
asked by Ashley 
science
A stretched string has a third harmonic frequency of 600 Hz. What is the frequency of the second harmonic?
asked by Anonymous 
science
What travels the slowest? Sound waves in water, steel, air, helium or visible rediation?
asked by Anonymous 
science
One person talking softly in a room is about 60dB. If 100 people in the room are all talking at the same level the intensity is now?
asked by Anonymous 
science
The major difference between transverse and longitudinal waves is the?
asked by Anonymous 
science
An object is 15 cm from a converging lens forms a real image 15 cm from the lens. The magnification is?
asked by Anonymous 
science
A sound produces an intensity of 1 W/m2 at a distance of 10 m from a source. What would be the intensity at a distance of 5 m from the source?
asked by Anonymous 
science
Which of the following travels the fastest? sound waves in air, sonar, microwave radiation, waves produced by a sonic boom, Ultrasonic waves?
asked by Anonymous 
science
The intensity of a 50dB sound is reduced by onehalf. What is the new intensity of the sound in dB?
asked by Anonymous 
science
Unpolarized light is shown through two polarizing filters that are at 90 degrees. What fraction of light will pass through both filters?
asked by Anonymous 
science
Polarized sunglasses operate on the principal that?
asked by Anonymous 
science
Transverse waves can propagate through which of the following? solids, liquids, gasses, or what combination of these?
asked by Anonymous 
physics
What is the critical angle of light traveling from benzene (n=1.501) into air? Choose one answer. a. 40.05o b. 48.22o c. 41.78o d. 62.63o
asked by ashley  
science
Three different resistors: 10 ohm, 20 ohm, and 20 ohm are connected in series, the overall resistance is:
asked by Anonymous 
science
Three different resistors: 10 ohm, 20 ohm, and 20 ohm are connected in parallel, the overall resistance is:
asked by Anonymous 
Calc
dy/dx of xy^2=tan(2x+4y)
asked by ardi 
science
Which one would be the safest? a. a current of 0.001 amps at 120 volts b. a current of 0.0001 amps at 24,000 volts c.a 5 volt source with unlimited current potential
asked by Anonymous 
Business Statistics
A company employs 10 people and plans to select a group of 4 of these employees to receive advanced training. How many ways can the group of four employees be selected? I thought this would be rather simple and I am completely stuck.. Any help with a
asked by Shelley 
algebra 2
what is the rule for the geometric sequence: 5000, 500, 50, 5?
asked by sky 
pre school
The comparison to children with adhdhi, children with the subtype adhdpi are greater risk for? A.ANTISOCIAL BEHAVIOR B.REJECTION FROM OTHERS C.ANXIETY AND MOOD DISORDERS D. PLACEMENT IN SPECIAL EDUCATION CLASS *I THOUGHT C BUT WASN'T SURE
asked by mallory 
Algebra
Find a power function of the form y=ax^b whose graph passes throught the points (2, 5) and (8, 12). How do i solve this??
asked by Brittney 
Algebra
Solve the equation and check for extraneous solutions. 10^((x^2)+1)=100,000 How do i handle this when the exponents have exponents?
asked by Brittney 
Spanish
How do you say "make a mess" in spanish?
asked by Delaney 
Chemistry
What is the total energy transfer(in KJ) when 10.00 pounds of water vapor at 110 degrees C becomes ice at 253K? Assume that the specific gravity of water = 1.00. The answer I got was around 12,000 KJ. Is this correct?
asked by Tyler 
Math
Consider the line passing through the points (2, 1) and (2, 3). Find the parametric equation for y if x = t + 1.
asked by Missy 
Chemistry
How many grams of Li2SO4 are needed to prepare 250.0 mL of a 4.0% m/v Li2SO4 solution?
asked by Debbie 
Algebra
Expand the expression of log5x^(1/3)y^6 5 is the base of the log. this is pretty tricky stuff and im not sure how to attempt it..
asked by Brittney 
Physics Urgent!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked by Abi 
english news report
Pls i need help with this newsreport. can you pls tell me if it sounds like it or not and you can also advice me on somethings to make it good. Headline: The death of King Duncan. Byline: Victoria Sinec. Lead paragraph: Duncan, the King of Scotland killed
asked by ted 
Algebra
ok did i do this right? evaluate the expression log(base4)(16)(4) log(4) 16 + log(4) 4 ? can you do that?
asked by Brittney 
Math(Please help)
Logarithmic differentiation f(x)=(2x1)^2 (x+3)^4 at x=1 f'(x)= 2*2/2x+1 + 4*1/x+3 [(2x1)^2)(x+3)^4 and then I plug in 1. I am having trouble getting an answer when I plug in 1.
asked by Hannah 
Advanced Algebra
Solve the equation 4e^x 2=14 I got it this far... 4e^x=16 But now what?
asked by Kenya 
physics
A 0.50 kilogram ball is thrown vertically upward with an initial kinetic energy of 25 joules. Approximately how high will the ball rise ?
asked by lucy 
Quotes about English language origin
So I wanted to start my etymology paper about fascinating word origins with a quote as my attention grabber. I am looking for a quote that talks about the english language and the origin of most of its words. Some interesting quote. I don't even know if
asked by Rebekah 
math
The perimeter of a rectangle is 194 inches. the length exceeds the width by 31 inches. find the L&W
asked by Renee 
science
Which of the following compounds has more than one some; PtCl_5NH_3, Co(BH_3)_4Cl_2, Pt(Co)_2Cl_2, Rb_3[Cr(CN)_6]
asked by kyle 
6th grade english
Please tell me if I have identified the following the sentences correctly as being declarative, exclamatory or impeative: The Italian word fo "moon" is luna Declarative Wow, that's how you say it it Spanish, too Exclamatory I have heard the words lunatic
asked by Linda 
chid psychology
which of the following is not true of the metaanalytical finding of reseach theory with children? A. changes achieved by children reciving treatment are greater than those for children not receiving treatment b. treatment effects are larger for problems
asked by alicia 
Geology 245
I am in need of help with my final project in Geology. I have to create a 1215slide powerpoint presentation on Factors and Forces of Geological Features, The Barnett Shale. I have the final rubric Final Rubric: Factors and Forces of Geological Features
asked by Joe 
probability
you have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tail up the ratio of heads up to tails up is 1:1.5. How many are tails up?
asked by Crystal 
Philosophy
The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated lifethreatening diseases such as polio, the human immune system
asked by Jean 
6th grade english
How would I change the following sentences to exclamatory? The moon travels at more than 2,300 miles per hour Some people thought the moon was made out of green cheese
asked by Linda 
Chemistry 20
The mass of calcium hydrogen carbonate that would be found in 52.0L of hard water in a bathtub is _______________ g. The amount concentration of calcium hydrogen carbonate in the hard water is __________mmol/L
asked by Cheryl 
Chemistry
Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction
asked by Donna 
eth/125
Write a 1,050 to 1,400word research paper in which you identify the linguistic, political, social, economic, religious, and familial conventions or statuses of four Hispanic groups living in the United States. Your paper must address Mexican Americans,
asked by meka 
Math(Please help)
Find: the integral (x^2/4  4) dx I know that the answer is x^3/12 4 +c but I do not know how to get this
asked by Hannah 
Chemistry 20
Sorry, the 1st part to those 2 questions are: Hard water contains metal ions, most commonly calcium and magnesium ions. Some moderately hard water is found to contain 200ppm of calcium hydrogen carbonate.
asked by Cheryl 
geology 245
Power point on factors and forces of geological features for the Barnett Shale
asked by Joe 
Math(Please help)
Determine the integral by making an appropriate substitution integral of 8x cuberoot srqt(4x^29) dx let u= 4x^29 du= 8x dx I do not know what to do now
asked by Hannah 
Math(Please check)
evaluate the integral integral of 3 to 2 x/(x^22)^2 dx u=x^22 du=2x dx 1/2 du = x dx integral of 1/u^2 du 1/(x^22) Then I plug in 3 and 2 and subtract them form each other 1/(3^22)  (1/(2^22) Is this correct?
asked by Hannah 
History
What were the economic and social differences between the North and the South around the 1830s? What types of classes lived there, and what kinds of labor and stuff did they do?
asked by Bobby 
math need help
Find the future value of an annuity due of $100 each quarter for 2½ years at 11%, compounded quarterly.
asked by eek 
math
A house is rented for $2000 per quarter, with each quarter's rent payable in advance. If money is worth 2%, compounded quarterly, and the rent is deposited in an account, what is the future value of the rent for one year?
asked by plz help 
math
What is the size of the payments that must be deposited at the beginning of each 6month period in an account that pays 6.6%, compounded semiannually, so that the account will have a future value of $140,000 at the end of 17 years?
asked by plz help 
finite math
A young executive deposits $400 at the end of each month for 7 years and then increases the deposits. If the account earns 7.2%, compounded monthly, how much (to the nearest dollar) should each new deposit be in order to have a total of $400,000 after 25
asked by distressed 
physics
Jack and Jill blow their whistles at the same time producing sound waves at frequencies of 400 Hz and 404 Hz respectively. How many beats per second are heard from the superposition of the two waves? Choose one answer. a. 400 b. 404 c. 4 d. 8
asked by ashley  
physics
What is the magnification of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? Choose one answer. a. 0.33 b. 0.33 c. 1.33 d. 1.33
asked by ashley  
physics
What is the image distance of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? Choose one answer. a. 13.3 cm b. 13.3 cm c. 40.0 cm d. 40.0 cm
asked by ashley  
math
whats the excluded value of 30k  20 over 90k
asked by Charnai Smith 
physics  really dnt get this at all
A 5.00 cm tall candle is placed at a distance of 50.0 cm from a double convex lens having a focal length of 15.0 cm. What is the image distance? Choose one answer. a. 21.4 cm b. 21.4 cm c. 65 cm d. 35 cm
asked by ashley  
Really Confused
About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? This is so confusing. I am thinking that it might be for business matters, but I would like the whole thing please. And no sites, since they do not
asked by Anonymous 
physics
Monochromatic light of wavelength 550 nm passes through a diffraction grating that has 55000 lines/m. A bright line appears on the screen at an angle of 12.23o from the central bright fringe. What is the order of this bright line? Choose one answer. a. 5
asked by ashley  
physics  really dnt get this at all
The third harmonic of a guitar string has a frequency of 170 Hz. What is the length of the guitar string if the speed of the waves on the string is 125 m/s? Choose one answer. a. 1.103 m b. 2.206 m c. 0.368 m d. 2.040 m
asked by ashley  
physics
Marks: 2 Light cannot be linearly polarized by: Choose one answer. a. transmission b. reflection c. diffraction d. scattering
asked by ashley  
physics
Marks: 5 In an experiment conducted using the Young's doubleslit apparatus, the separation between the slits is 20 µm. A firstorder constructive interference fringe appears at an angle of 2.5o from the zeroth order (central) fringe. A. What wavelength
asked by ashley  
physics
What is the angle of refraction of a light ray that enters the surface of a calm lake from air at an angle of 45o to the normal? The refractive index of water is 1.333. Choose one answer. a. 32.04o b. 45.00o c. 59.99o d. 33.76o
asked by ashley  
physics
What is the critical angle of light traveling from benzene (n=1.501) into air? Choose one answer. a. 40.05o b. 48.22o c. 41.78o d. 62.63o
asked by ashley  
physics
Which of the following statements is not true about resonance? Choose one answer. a. It is easy to get an object to vibrate at its resonant frequencies but difficult to get it vibrate at other frequencies. b. A simple pendulum has many resonant frequencies
asked by ashley  
Philosophy ( Critical Thinking)
1. The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses (Points : 1) Jerry with
asked by Jean 
Science
A vibrating string produces the highest pitch if it's; A) loose and long B) loose and short C) tight and long D) tight and short
asked by Lekeisha 
Physics Urgent!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked by Abi 
Trading Posts, dont get it.
What were the effects of having to use rivers to complete such long journeys? I don't know. Please help.
asked by Anonymous 
Engliu
I have a few more doubts. I also wanted to know if the sentence "It was three days since I had last met him" is a mistake. I just applied a grammar rule according to which "it was ... is followd by the past perfect with the meaning "I hadn't met him for
asked by Henry1 
Math
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write
asked by bill 
English
I'm posting you my questions again since I mispelt the word English before. Thank you very much for your help! I have a few more doubts. I also wanted to know if the sentence "It was three days since I had last met him" is a mistake. I just applied a
asked by Henry1 
Trading Posts
About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? This is so confusing. I am thinking that it might be for business matters, but I would like the whole thing please. And no sites, since they do not
asked by Anonymous 
Math
Below are the amounts of money a waiter earned each day last week. $120 , $170 , $150 , $190 , $130 , $200 , $160 . What is the interquartile ?
asked by Edwin Rodriguez 
pLZ help
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write
asked by bill 
Math
Whats 6 x 4 ?
asked by Katrina Alex 
Chemistry
The Hydrolysis Reactions  Write netionic equations for the reaction of each salt with water below. If there is no reaction, write N.R. 1. NH4C2H3O2 2. NH4Cl 3. NaCl 4. Na2CO3 5. NaC2H3O2 6. NaHSO4 7. FeCl3 8. NaH2PO4 9. NaHCO3
asked by K 
Critical Thinking (philosophy)
1. 21{1[2(24)24]}> The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses (Points : 1)
asked by Jean 
Chemistry
A mixture of KCI and KClO3 weighing 1.80g was heated. The dry O2 generated occupied 140ml at STP. What percent of the original mixture was KCl03?
asked by Lisa 
chemistry
How many grams of sodium are contained in 10 grams of sodium sulfate?
asked by Anonymous 
chemistry
OF THE FOLLOWING SUBSTANCES, WHICH HAS THE LARGEST AVERAGE SPEED AT 25DEGREES. CO, NH3,H2,N2?
asked by Joe 
Math
Determine the integral by making an appropriate substitution integral of 8x cuberoot srqt(4x^29) dx let u= 4x^29 du= 8x dx I do not know what to do now
asked by Hannah 
physics
Which of the following statements is true about a mass, which is attached to a spring and moves with simple harmonic motion on a frictionless horizontal surface? Choose one answer. a. The kinetic energy of the mass is maximum at the end positions. b. The
asked by ashley  HELP PLEASEE!!! 
physics
A 5.00 cm tall candle is placed at a distance of 50.0 cm from a double convex lens having a focal length of 15.0 cm. What is the image distance? Choose one answer. a. 21.4 cm b. 21.4 cm c. 65 cm d. 35 cm
asked by ashley  HELP PLEASEE!!! 
math
A young executive deposits $400 at the end of each month for 7 years and then increases the deposits. If the account earns 7.2%, compounded monthly, how much (to the nearest dollar) should each new deposit be in order to have a total of $400,000 after 25
asked by worried 
math
Suppose a young couple deposits $700 at the end of each quarter in an account that earns 7.1%, compounded quarterly, for a period of 6 years. After the 6 years, they start a family and find they can contribute only $200 per quarter. If they leave the money
asked by cant figure this out :( 
math
What is the size of the payments that must be deposited at the beginning of each 6month period in an account that pays 6.6%, compounded semiannually, so that the account will have a future value of $140,000 at the end of 17 years?
asked by cant figure this out :( 
Religious Studies
1. What is “the problem of evil,” and why is it particularly problematic for Western, monotheistic religious traditions?
asked by Lily 
Art History
Help please... What do you believe the amphitheater in Pompeii reveals about the culture that created it?
asked by Alex 
Physics Urgent!!!!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked by Abi 
Math(Please check. Thank You)
1) solve:e^x(x^24)=0 e^x=0 and then (x+2)(x2) so x=2, 2 2) differentiate: y=ln(6x^2  3x + 1) 1/(6x^2  3x + 1) * 12x3 3) differentiate: y=e^3x+2 3 * e^3x+2 4) evaluate: 2^4x=8 2^4x = 2^3 4x = 3 x=1 so x=1 5) differentiate: x^3 + y^3 6 =0 3x^2
asked by Hannah 
math
Find a 4digit number so that if you put a decimal point in the middle the number you get is the average of the two numbers on either side??
asked by that_chick 
calculus
Find the coordinates of the vertex of the graph of f(x)=2x^2+101
asked by Anonymous 
Calculus
Find the coordinates of the vertex of the graph of f(x)=2x^2+10x17.
asked by Anonymous 
Religious Studies
From an academic perspective, when does the Job text first emerge in history?
asked by Lily 
PHYSICAL SCIENCE
compute the freezing point of 21.6 g CuSO4 in 1.00 x10 to the 2nd power gH2O
asked by Anonymous 
Economics
Use the following calculations in the relevant formulas to answer the questions Need Help don't know where to start n = 7 ¢²(x − x̄)©÷ = 4,924.00 x̄ =44 ¢²(y − ȳ)©÷ = 904,627.43 ȳ =553 ¢²(y − ŷ)©÷ = 35,168.50 ¢²xy =235,843
asked by Kieran McCamment 
geometry
I have a triangle garden in my backyard. one side is 4 meters and another side is 6 meters. the angle formed by these two sides is 72 degrees. what is the area of the garden?
asked by Shauna 
Social Studies
Put these facts in your only words *Metacomet is an indian cheif who hated christianity. * He would always turn down offers to convert to christianity. *He was the second son of Massasoit *Massasoit died in 1661 *Metacom's older brother Alexander was chief
asked by Frances 
Economics
Use the following calculations in the relevant formulas to answer the questions Need Help don't know where to start n = 7 (Greek)E(x − x̄) = 4,924.00 x̄ =44 E(y − ȳ)= 904,627.43 ȳ =553 E(y − ŷ)= 35,168.50 Exy =235,843 E(ŷ − ȳ)=
asked by Kieran McCamment 
math
you have16 coins that are heads up an18 coins that are tails up. After you add some coins that are tails up, the ratio of heads up to tails up is 1 to 1.5. How many coins are tails up? How many coins are in all?
asked by Lance 
calculus
Evaluate the Integral ∫1, 0 x^3(1+x^4)^6dx where 1=b 0=a for the limits
asked by noell 
Math grade 11
An observer in a hot air balloon some distance away from the aqueduct determines that the angle of each depression to each end is 54 degrees and 71 degrees. The closest end of the aqueduct is 270 m from the balloon. Calculate the length of the aqueduct to
asked by Anonymous 
aglbera
A 125ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and
asked by kozy 
calculus
Find the general indefinite integral ∫cosxsin^4xdx
asked by noell 
algebra
A 125ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and
asked by kozy 
differential calculus
use the product rule to find the derivatives of the given function y=(3x^28)^2
asked by ash 
healthcare
What are the benefits and challenges of one technologically based communication modality—email, a webbased forum, and so forth—involving patients and health care providers? at least 2 benefits and 2 challenges
asked by bobbi 
physics
what is the value of electric field intesity at a point between two co centric sphere
asked by Anonymous 
child psychology
the only ssri that's currently fda approved for the treatment of depression in children is a.paraxetine(paxil) b.fluxetine(prozac) c.sertraline(zoloft) d.trimoxiphine(xantax) I chose A im still unsure
asked by alicia 
6th grade english
I was just checking to see if anyone read my response to the information that you all gave me. I was asked to check back with you all. My post was at 5:49pm Thanks
asked by Linda 
programming logic and design
what is the output by each psuedocode segments ? 1. a=1 b=2 c=5 while af d=d+1 e=e 1 endwhile output d, e, f 3. g=4 h=6 while g
asked by michael 
Trading Posts
About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? Okay so this is because of competition. Individuals seeked for different benefits. Please Ms. Sue help me expand on this.
asked by Anonymous 
math
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write
asked by mike 
Science
What is friction? I don't understand the definition.
asked by Christina 
Algebra
solve the eauation check for extraneous solutions. log5 x=4
asked by Ashley 
chemistry
Calculate the pH at each stage in the titration of 25.0 ml 0.10 M KOH(aq) with 0.25 M HCl(aq). 1. Initiall ( before titration). 2. After addition of 5 ml of HCl. 3. After addition of 9.5 ml of HCl. 4. At the equivalent point. 5. After addition of 12 ml of
asked by jonah 
Algebra Unit Analysis
I am doing Unit Analysis and I can not fugure out how to set the promble up on these 3. I just need to know how to set it up I can figure out the answer. 1.How many cubic meters are there in a cubic mile? (1 mi = 1609.344 m.) 2.My 1967 Encyclopædia
asked by Shawn L 
Algebra
Solve the equation. 2log3 y = log3 4+ log3 (y+8) Here's what ive got take out the logs and say y^2= 4+ y +8 which simplifies to (y^2)y=12 how do i simplfy the y?
asked by Kenya 
Math (difficult)
The value of a new car purchased for $28,000 decreases 8% per year. Write an exponential decay model for the value of the car. Use the model to estimate the value after 5 years.
asked by Benjamin 
Calculus
Find the derivative of y=x^2/ln3x.
asked by Anonymous 
math
If $86,000 is invested in an annuity that earns 5.2%, compounded quarterly, what payments will it provide at the end of each quarter for the next 3½ years?
asked by ughh help 
Math
Suppose an annuity will pay $18,000 at the beginning of each year for the next 8 years. How much money is needed to start this annuity if it earns 6.9%, compounded annually?
asked by math help plz 
math
A used piece of rental equipment has 3½ years of useful life remaining. When rented, the equipment brings in $300 per month (paid at the beginning of the month). If the equipment is sold now and money is worth 5%, compounded monthly, what must the selling
asked by math help plz 
math
Suppose an individual makes an initial investment of $1100 in an account that earns 7.5%, compounded monthly, and makes additional contributions of $100 at the end of each month for a period of 12 years. After these 12 years, this individual wants to make
asked by help me i'm stuck 
math
The terms of a single parent's will indicate that a child will receive an ordinary annuity of $20,000 per year from age 18 to age 24 (so the child can attend college) and that the balance of the estate goes to a niece. If the parent dies on the child's
asked by stuck on this one ? 
Leadership
“Big Changes for a Small Hospital” As F. Nicholas Jacobs toured the Windber Medical Center facility, he was dismayed by the industrial pink painted walls, the circa 1970 furniture, and the snow leaking through the windows of the conference room.
asked by Tebbie 
CHEM
What is the number of "UNBOUND" electrons in H2O...its not 0 or 2....is it 1??
asked by CHEMISTRY 
Advanced Algebra
Find the exponential function of the form y=ax^b whose graph passes through the points (3, 1/27) and (0,1). I don't know where to begin with this problem??
asked by Anonymous