Questions Asked on
May 17, 2009

physics
the relationship bwtween frequency, wavelength, and speed holds for light waves because all forms of electromagnetic radiation travel at a single speed in a vaccum. is this true?? or do different forms of electromagnetic radiation travel at different
asked by Claudia 
exponential function
An investment pays 8% interest, compounded annually. a) write an equation that expresses the amount, A, of the investment as a function of time, t, in years. b) determine how long it will take for this investment to double in value and then to triple in
asked by Jus 
Math
Which ordered pair is a solution of the system of equations y=x^2x20 and y=3x15? a. (5,30) b. (1,18) c. (0,5) d. (5,1) When I solved the system of equations I got 5 and 1. What do I do next?
asked by Angie 
waves and sound
1A tunning fork has a frequency of 440Hz. The string of a violin and this tuning fork, when sounded together, produce a beat frequency of iHz. From these two pieces of information alone, is it possible to determine the exact frequency of the violin
asked by Cynthia 
Logarithmic Function
A spacecraft is approaching a space station that is orbiting Earth. When the craft is 1000 km from the space station, reverse thrusters must be applied to begin braking. The time, t, in hours, required to reach a distance, d, in km, from the space station
asked by Jus 
physics
I have a few questions that i am not too sure how to figure out... 1 as a racing car zooms by you, its pitch decreases by 20%. If the speed of sound is 345m/s, how fast is the car travelling? 2a person has a threshold of hearing of 5db. another person
asked by kate 
Chemistry I
A scuba diver's tank contains 0.23 kg of O2 compressed into a volume of 3.5 L. (a) Calculate the gas pressure inside the tank at 11°C. ________atm (b) What volume would this oxygen occupy at 20°C and 0.92 atm? ________L what are the formulas for this
asked by Elizabeth 
physics
When a guitar string is sounded along with a 440Hz tuning fork, a beat frequency of 5Hz is heard. When the same string is sounded along with a 43Hz tuning fork, the beat frequency is 9Hz. What is the frequency of the string??.. The first thing i thought of
asked by help:( 
Exponential Word Problem
An investment pays 3.5 percent interest, compounded quarterly. a) write an equation to express the amount A, of the investment as a function of time, t, in years. The answer is A(t)=P(1.00875)^4t Ok, but my question is this: Why isn't the equation
asked by Jus 
geometry
A regular polygon has 12 sides. What is the measure of each EXTERIOR angle?
asked by Lauren 
English
1. He struck me on the head. He struck my head. 2. He looked me in the face. He looked at my face. 3. He took me by the hand. He took my hand. (Is each pare the same? Which one is frequently used?)
asked by John 
OChem
Anhydrous conditions are vital for a successful Grignard synthesis. To demonstrate this point, calculate the mass of water it would take to destroy the phenylmagnesium bromide that synthesized from 0.48 mL of bromobenzene and 112.5 mg of magnesium. What is
asked by bee 
Math
dz =(−sinx + 2xy^2)dx +(2x^2 y)dy Integrate the differential to find the function z. Would I say that z was equal to two separate differentials and integrate the first part of the function with respect to x and the second part with respect to y? z = cosx
asked by Clare 
algebra
Militsa has 4 times as many nickels as dimes. Their total value is $8.10. How many of each coin does she have
asked by Benjamin 
English Repost
I really need help on this, please help! Posted by Priscilla on Saturday, May 16, 2009 at 5:28pm. I did not really understand the poem, Moon Rondeau. Here is the lyrics: "Love is a door we shall open together." So they told each other under the moon One
asked by Priscilla 
cjs250 Introduction to Security
What component of the overall security objective do you think deserves the most attention in the environments mentioned in the article?What components would be less pertinent for these particular environments during a vulnerability assessment? Why? o
asked by Anonymous 
Diversity in the Classroom
Imagine that you have been asked to serve on the advisory board for a new, alternative school program in your school district. The advisory board must specify the factors that will be considered in determining which students qualify for the program and
asked by B.B. 
English
I am writing a poem. Can someone please give me some suggestions on how to imporove the poem, especially line 5. Also, I want to use some sound devices in the poem. Any ideas? Here is the poem: Education You are light that lightens up our lives You are as
asked by Anonymous 
Science
1.Differentiate between soil permeability and retentivity. 2.Differentiate between chemical factors and biological factors of soil organisms. Please note,I wouldn't be needing any information from: SoilWikipedia,the free Encyclopedia. Thanks.
asked by Kavita 
Language Arts
Hi! I'm having trouble coming up with a paper for a magazine school project im doing. My magazine topic is about preforming arts and i need to write a persuasive paper. It needs to persuade the reader to do something while advertising something. Any help?
asked by Eleane 
math
The exterior angle of a regular polygon is the angle formed by an extended side and the adjacent side. c) How do the central angel and the exterior angle of a regular pentagon compare? Is this relationship true in any regular polygon? Explain. Help
asked by CAITLIN D. 
How does this sound?
Write a 350 to 700word paper in APA format describing two approaches or indicators to measuring patient outcomes. Measuring the quality of care is essential to being able to identify which areas of patient care need improvement. A positive patient
asked by Jen 
Chemistry 
If a solution is 0.25 M KOH...how can i figure out the hydronium concentration and hydroxide concentration? i'm confused..because isn't this a salt?
asked by Lisa 
English
So for English we're doing poetry. With a partner we both wrote our own poems and compared them. We had to find one word that fits into both poems and we got the word "Change". Now we have to be able to read our poems while not boring the class by doing
asked by Brian 
Math
A set of homogeneous simultaneous equations is given by x + ky = 0 kx + 3y = 0 Calculate the two values of k that lead to nontrivial solutions to these equations and express y in terms of x for the two values. I thought that for the solutions to be no
asked by Alice 
Maths
Hey :) I'm sitting my maths noncalculator GCSE tomorrow and am currently revising. I'm doing a practise paper and am currently stuck on this question: Express A in terms of w. 3w + 20 A  =  200 A + 12  What does the question mean?  Can
asked by Sarah 
Chemistry
Two moles of pure ammonia were injected into a 2.00L flask at a certain temperature. The equilibrium mixture: 2NH3(G)>N2(G) + 3H2(G)
asked by Jimmy 
history
I was hoping someone could write me a little a bit about their specific memories related to the Vietnam War, to Civil Rights, to the growth of feminism, to the rise of a new conservative movement, to Watergate and Nixon’s resignation, etc during the
asked by bee 
College Final Project
I need to write a paper that stems from me interviewing another...so in sorts it is a Interview Profile Report that also compares and contrasts with me answering the same questions asked. What kind of paper is this for me to format my writing with...I am
asked by Mary K 
english
what is a direct object and a subject compliment?
asked by vero29 
Chemistry
I have no clue as to how this problem should be solved... could i have some help please? Calculate the rms speed of SF6 molecules at 16°C
asked by Lydia 
algebra
please help me in this fraction add and solve 3b^3t^3/ 8d^2k^2 + 5y^2/ 2bk^3
asked by sara 
algebra
multiply and solve please i need help bad x^21/x3 * 4x12/x^2x2
asked by sara 
MATH
The exterior angle of a regular polygon is the angle formed by an extended side and the adjacent side. a)what is the measure of each interior angel of a regular pentagon. (There is apicture on the page and each side measures 21mm) Help please.
asked by CAITLIN D. 
senior year
does anyone know what consumer math is? i'm trying to take it for my senior year, but i'm not sure what it's about. or if i can take it after trig and algebra.
asked by y912f 
Lanuage
What is subjectverb or pronounantecedent for this sentence: Not one of our tomato plants are producing any fruit, but the greenbeans are thriving.
asked by Cynthia 
Math
Fing (ÝV/Ýp)_T,n given pV = nRT(1 + (B/V) + (C/(V^2)) + (D/(V^3)) ) I know how to do partial differentiation, but I have no idea how to rearrange this for V
asked by Clare 
uop
How many riders would there have to be on a bus to yield (a) a 50 percent probability that at least two will have the same birthday? (b) A 75 percent probability? Hint: Use LearningStats.
asked by sally 
math
List all the subsets of {2, o, t}.
asked by help 
Pre Calc
I need to graph the function, y = log(root 3)2x I did...now I need to graph the inverse. What is that?
asked by MW 
math
Let U = {x/x is a female} A = {x/x is a mathematician} B = {x/x owns a pickup} C = {x/x owns a dog} Describe in words a member of each of the following: _ (a) B (b) B u C (c) A  C
asked by anonymous 
7th grade
USING THE FUNDAMENTAL COUNTING PRICIPLE TO FIND THE TOTAL NUMBER OF OUTCOMES IN EACH SISTUATIONS 1.THE TOTAL NUMBER OF TREES PLANTED IN 5 DAYS BY 30 PEOPLE ,WHO EACH PLANT 3 PLANTS PER DAY 2.TOTAL OF DISGUISES YOU CAN CREATE WITH 2 DIFFERENT CONTACT LENS 3
asked by Anonymous 
algebra
help solve this proportion u/4 = 11/17
asked by sara 
maths
whats 3(a+2)? or give me step by step guide how to expand brackets, thanks.
asked by hassen 
spanish sra jmcguin
hi would you please look over one more time  does pedi have an accent Mis hermanos gemelos nacieron en el Hospital de Riverside en Columbus, Ohio. Uno tiene cabello negro y ojos azules. El otro es rubio con ojos verdes. Nacieron el veintinueve del año
asked by sam 
spanish sra jmcguin
hi any other suggestions i tried to get them all Mis hermanos gemelos nacieron en el Hospital de Riverside en Columbus, Ohio. Uno tiene cabello negro y ojos azules. El otro es rubio con ojos verdes. Nacieron el veintinueve del año dos mil. Estaba
asked by sam 
DHJ
WHAT IS THE RELATIONSHIP BETWEEN FRICTION AND DIFFERENT SURFACES?
asked by Anonymous 
Math
Hi, I'm really having problems with this question, can someone please help me. Thankyou! Algebraically solve for 0
asked by Sydney 
chemistry
Which of the following is NOT true about the thermodynamic standard state? A. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm. B. An aqueous solution is in its standard state at a concentration of 1.00 M. C. A gas is in its
asked by jeff 
physics
The Weistin Stamford Hotel in Detroit is 228 m tall. Suppose a piece of ice which initially has a temperature of o degrees celcius falls from the hotel roof and crashes to the ground. Assuming that 50% of the ices mechanical energy during the fall and
asked by bob 
Algebra 1
I need help simplifying these expressions. 1/3 + 2/x= 3/x 2/5  3/x=1/5x 3/x+1  1/x=1/2 4/x+1=3/x+2 x/x+3= x2/x 2x^24x/x2 5x/2 times 1/x 12x/5 divided by 6x/7
asked by Meghan 
English
1. His face looked familiar to me. 2. I looked familiar with his face. (Are both the same?) 3. The subject is familiar to me. 4. I am familiar with the subject. (Are both the same?)
asked by John 
Chemistry
Does the Octet rule say that atoms like to have 8 structural electrons, or eight valence electrons. I'm pretty sure it's valence, but I just wanted to check.
asked by Tabetha 
science
chemical equation for iodine and sodium bromide
asked by colton 
5th grade
out of 100 tickets sold at a school raffle jack bought 5 mat bought 3 and jon bought 2 whats the probability each boy will win?
asked by rebecca 
Science (Ocean Life)
What is the temperature range where gulper eels live at 6000 ft. below sea level (not the top of the water)
asked by Asunta 
healthcare
can you give me a Physiology powerpoint Presentation that summarizes the processes of the digestion,respiration,and circulation.
asked by cathy 
Diversity in the Classroom
Create an AtRisk Program. What would be AtRisk Program that I can create? I need to talk about how the atrisk population will have an affect on the program serve.
asked by B.B. 
spanish
"De pequeño, ¿con qué jugabas en el patio de recreo?" "Jugaba con _____." a. el columpio y los peces b. el cajón de arena y las tortugas c. la cuerda y la verdad d. el tobogán y el sube y baja D
asked by y912f 
SPANISH
TRUE OR FALSE IN Spain, all hotels are new modern buildings The PARADORES in Spain are operated by the Spanish government Many types of accomodations are available for tourists who visit Spain i found this in my book, can someone pleaase translate it for
asked by y912f 
math
I really need help. Please help. Solve for x: log(subscript)3(3x+1)log(subscript)3(x1)=2
asked by Jenna 
math
List all the subsets of {2, o, t}.
asked by help 
Physics
When looking straight down on a film of oil on water, you see the color red, How thick could the film be to cause this effect? How thick could it be at another place where you see violet?
asked by Sara 
Math
Please explain ... What percent of 60 is 72? 35 is what percent of 20? Thank you!
asked by Kate 
Math
Can somone please help me with this question. Thankyou! Solve for x if 125^3x1=25^x+4
asked by Sydney 
economics
Hi. I was wondering if someone could please tell me what states are getting the most stimulus money to stimulate new job creation? Thanks.
asked by Leah 
English
I have to write a paper on the PseudoModern movement and how it relates to movie, music, artwork, an article, and a 21st century. I can't find an example for each of these cases.
asked by Vince 
Science
What keeps cheese warmer? aluminum or plastic wrap?
asked by Katie 
business
Describe the evolution of business
asked by oz 
math subsets
List all the subsets of {2, o, t}.
asked by help 
social studies
what was found in king tut's tomb
asked by gabby 
English
I have to write an essay about three 'heroes' so I chose Batman, Harry Potter, and Hercules. But I need to know what they have in common so any ideas?
asked by Astrid 
social studies
some workers specialized in fishers,tailors ,printors,or what?
asked by rachel 
science
what are the ten rescent devolopments in science?
asked by sreehari 
nucleophilicity
the more basic the the more nucleophilic?
asked by katherine 
healthcare
Use five medical words discussed in this week’s reading to create a SOAP note.
asked by cathy 
Math
How do you do this, I keep on getting 3.. There is a right triangle. One angle is 30 degrees. The hypotenuse is 24. What is the value of x, the adjacent, to the nearest whole number? a. 12 b. 14 c. 21 d. 28
asked by Angie 
criminology
According to Courtwright, criminal rates were exceedingly high in the nineteenth century before TV, movies, and rap videos had been created. What, if anything, does this say about the effect of media on crime? What were some of the other factors that
asked by melissa 
Chemistry
For one mole the ideal gas law is pV=RT , write down the exact differential dV. Would I be right to differentiate with respect to T and p separately?... V = RT/p dV = R/p  (RT)/(p^2)
asked by Beth 
Technology
Is a cellphone an electrical appliance
asked by Tanisha 
physics
Given the amplitude of a wave and the wabelength how to you find the period? The problem then goes on and asks me how to find the speed which I know how to do I just don't know how to find the period... Please show me how to do and the formulas to use
asked by HELP ME! 
spanish sra jmcguin
thank for your help you are so great
asked by sam 
math
find the 19th term to: 4,6,8,10
asked by sally 
spanish
"¿Cómo te _____ cuando eras pequeño?" "Muy mal. Siempre me peleaba con mi hermana menor." a. llorabas b. portabas c. preferías d. eras B
asked by y912f