Friday

July 25, 2014

July 25, 2014

Number of results: 151,143

**science (physics) Need to solve this today please**

(a) Express the vectors A, B, and C in the figure below in terms of unit vectors. (b) Use unit vector notation to find the vectors R = A + B + C and S = C – A – B. (c) What are the magnitude and directions of vectors R and S? Well the picture goes and has a vector A pointing ...
*September 29, 2007 by ~christina~*

**science**

i need help with these questions because i need to write a report on it helpp please What are the implications of stem cell reasearch for today and future generations What are stem cells? What are they capable of? How are they used in science/ medicine presently? What ...
*September 23, 2007 by chelsea*

**Physics**

Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...
*October 9, 2012 by Mike*

**algebra**

solve by substitution 5x-2y = -5 y - 5x = 3 could someone take a min a show me how to do this problem by steps so i can do the rest of my problems and wait a min so i may ask questions. I m failing my algebra class and desparately need help. 5x-2y = -5 y - 5x = 3 take the ...
*August 10, 2006 by Tammy Evert*

**Math**

1)Solve sin2x=3cosx for all values of x. What do I need to do? 2)Solve e(sqrtx)=4 3)Approximate the greatest real root of f(x)=x^3-2x-5 to the nearest tenth. I just need help not do for me. HELP. Please and Thank you. Explain please no links.
*September 30, 2008 by Anonymous*

**English 2**

Which hero's story, King Arthur's or Sundiata's, has the more relevant message for young people today? Compose an essay that answers this question, giving at least two examples from the selections and applying them to issues young people face today. I still need help with this...
*October 12, 2010 by mysterychicken*

**English 2**

Which hero's story, King Arthur's or Sundiata's, has the more relevant message for young people today? Compose an essay that answers this question, giving at least two examples from the selections and applying them to issues young people face today. Need help with the first ...
*October 11, 2010 by mysterychicken*

**English-Native speakers**

Need help with one sentence structure. I don't know if I am going to be able to explain it good. It goes like this "the measures will have to be much more drastic than if they were conducted today" I need help with this part "than if they were conducted today". I want to say ...
*November 28, 2012 by mark*

**Math help please**

1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3/4b 2. Solve for y, then find the value of y when given x = 2. 6x = 7 - 4y -12 7/4 19/4 24 I need help solving these. Can you please explain how to solve these problems?
*October 2, 2013 by Charlotte*

**U.S.History**

i need help answering this question:how is the constituiton "alive" today. i dont know if i understand it correctly does it mean like what features or parts of the Constitution make it flexible enough to apply to the nation's needs today? if that is what it means..can i please...
*January 27, 2009 by y912f*

**English**

Which is the best way to write this sentence. Today the Pink Palace Museum has a science center too. 1.Today the Pink Palace Museum is having a science center too. 2.Today the Pink Palace Museum had a science center too. 3.Today the Pink Palace Museum will have a science ...
*December 14, 2012 by Hayden*

**AED**

help please I need info for this ? Discuss how one of the events has shaped today's classroom and how that event is still reflected in today's classroom. I chose this one for this question 1981 Distance learning becomes a reality
*April 22, 2008 by Dawn*

**science**

i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g) at 1 atm and 0 ...
*April 16, 2011 by marie*

**Math/Science(Short Question 10th grade))**

[History Homework] Please answer 1. What are 2 pieces of technology essential today? 2. If you could give a prehistoric person one item from today what would it be? 3. Why is writing important for civilizations? 4. Why is theater/drama important to society? 5. What are some ...
*September 15, 2011 by Bone*

**Algebra**

Help please (x^3 + 3x^2 - 2x+7)/(x+1)=11 I don't how how to solve this at all-the answer should be 11 but I don't have a clue how to get it-please show me this one so I can hopefully do my homeowrk-we did this in class today but I don't understand it
*March 7, 2012 by Jeremy*

**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 5g saccharose please...
*March 29, 2011 by nina*

**Earth Science**

i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you
*September 16, 2009 by Anomynous*

**Earth Science**

i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you
*September 17, 2009 by Need Help*

**Math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
*May 26, 2009 by Amy*

**math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
*May 26, 2009 by Amy*

**Math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
*May 27, 2009 by Amy*

**Science 7R (Lab questions) **

We did a lab today at science and for homework we have to answer questions about the Lab. I need help on 2. 12. Name two ways that a plant and animal cells differ in structure? 13. How are plant and animal cells different in function? She said that we have t write it in ...
*December 1, 2011 by Laruen *

**WHY SKIPED MY QUESTION??????????????**

PLEASE I NEED TO FINISH BY TODAY
*May 26, 2010 by anu*

**English- Mrs. Sue**

So I have my thesis statement down but now I just need examples about speaking up and why you need to address things in this world today. Can you please help. Thanks soooo much:))
*February 8, 2014 by Anonymous*

**English**

i need help finding some propaganda used today i need an example of each of the following propaganda: glittering generalities transfer bandwagon please help and thank you
*January 8, 2011 by needhelp!!!*

**Algebra**

Please help! I need to factorise and solve this equation, x^2 +x -30 =0 I then need to explain how I would use the answer drom this to solve the equation 4x^2 +4x-120=0
*May 5, 2010 by Mac*

**Science**

My homework today is. Is Pluto really a planet? I always thought it was, can you help me please?
*October 10, 2007 by Samirah*

** math**

how to write 50 thousand please i need the answer today
*July 16, 2014 by angela*

**History**

I need help on how people influenced us. I am doing some history homework about the great depression (late 1920's through early 1940's) and I need some future connections like how did Duke Ellington influence us today? Or Walt Disney influence us today...ect. I can't find ...
*February 20, 2013 by Sam*

**Science-Elements**

which of the alchemy symbols is used today with a completely different meaning? what does that symbol mean today? I couldn't find the information for this in my text, I think it's iron, but I'm not sure, your help will be appreciated, thanks
*March 29, 2010 by Sara*

**Science **

NEED HELP PLEASE THANK U U R NICE :) Describe how burning fossil fuels has created an imbalance in the carbon cycle. Most people drive cars and heat their homes with petroleum, coal, or natural gas. Why is it important to find alternatives for these sources of energy? What are...
*April 19, 2013 by Cindy*

**trig 30**

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. Could...
*April 29, 2010 by Rae*

**science physics**

i dont get how to solve this please help me Two resistors, 47 Ù and 82 Ù, are connected in series across a 45 V battery. What is the current in the circuit?
*January 5, 2012 by jason*

**science**

From the cosmic background radiation, what can scientists infer that the universe was like after the big bang ? a) very small b) hot c) the same average temperature as it is today d) cooler then it is today
*November 22, 2013 by victoria*

**Precalc**

Can someone please help me? I don't know how to solve for time under 23 units. When I try I think I get the answer for above 23 units and when I try to subtract from the whole period my answer is wrong. The correct answer is 5.1337 hours. Fidel is measuring the light intensity...
*August 19, 2011 by Rose*

**science**

please help me i am looking for word problems involving potential and kinetic energy i need for my homework in science PLEASE HELP!
*December 9, 2009 by iya*

**poetry**

I need help determining the meter in my poem. The Ocean says, "Roar" to wake me up, And I smile as I grab my coffee cup, Because this is the day the Lord has made! I refuse to quiver and be afraid. The sunburst peeks through my window wide, And stay that way till close noon ...
*June 30, 2011 by Person*

**Science**

Hi I need help finding something. I need 6 primary articles about forensic entomology (the use of insects to solve crimes).
*November 30, 2007 by Anonymous*

**Statistics homework distribution problem? **

i need help with how to solve this: consider a normal distribution with mean 30 and standard deviation 2. what is the probability a value selected at random from this distribution is greater than 30? the book gives me the answer but i need to know how to solve it. please help?
*February 20, 2012 by jess*

**algebra 1b**

i need help!!!!!!!!!!!! Please post your problem and your attempts to solve it. Then we'll be glad to help you. what's the problem? I have a test on wednesday or thursday and I think I'm gonna pass it! I need help with Simplifying i need help with sketching the graph of the ...
*October 1, 2006 by unspoken*

**Science (Cont.)**

Can anyone please answer my science question???? PLEASE!! if nobody on here is answering, try doing a little research on other websites i need some help on my homework
*February 22, 2007 by jk1115*

**science(physics)**

the sum of three forces f1=100n, f2=80n, f3=60n acting on a particle is zero. The angle between f1 and f2 is: Please solve
*June 9, 2011 by marley*

**science**

how can the chemical energy of your lunch today become the energy you need to deliver the newspapers after school tomorrow?
*January 6, 2009 by jayme*

**Science**

good day! can you please give me the wave explanation for colors? i need it for my report tomorrow. i need an immediate answer please!
*July 4, 2010 by Kareen*

**Algebra**

I have a math CRCT test today and I needed some help on a last minute review problem. Can someone please explain how to solve this? 1. 12x-3+6x-2=31 -MC
*April 22, 2009 by mysterychicken*

**planning**

In three to five sentences, answer the following questions. 1.Where do I picture myself five years from now? What am I doing? Where am I going? 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream? 1. Five years from ...
*August 30, 2010 by Anonymous*

**Physics**

a car travels 59.78 miles east in 89.67 minutes, then 89.67 miles north in 59.78 minutes, and then 29.89 miles at 59.78 degrees west of south in 149.45 minutes. whats the magnitude of the car's average velocity in miles per hour??? Please help!!!!!! P.S. please don't round ...
*September 7, 2009 by Autumn*

**science**

PLEASE HELP I NEED A GOOD SCIENCE FAIR PROJECT. PLEASE HELP THANK YOU JUSTIN
*November 28, 2012 by justin*

**Art**

PLEASE HELP! URGENT! I need to find an example of where buddhist art can be found today like an example of it.. a statue, temple, etc. I need one so i can write about it. Thank you soo much!
*August 23, 2012 by Chula*

**biology**

thank you for anwering my question Ms.Sue i just need you to explain it further on the question earlier.Is a scientific hypothesis accepted if there is no way to demonstrate that th e hypothesis is wrong ? thank you. please i need the explanation today.
*September 15, 2009 by rx *

**algebra **

I need help breaking down the steps to solve HELP ME PLEASE solve with an exact answer. x^2 + 2x - 8
*January 17, 2012 by becca*

**science**

See i took this practice test and i got a lot wrong i need help its on nature of matter and i need help so my mom can get of my back help me please I'm desperate for help please i beg
*January 25, 2010 by Brianna*

**Algebra 1 a**

Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-10.0 solve the elimination method
*June 26, 2011 by Manu*

**Physics/Science**

A startled armadillo leaps upward rising 0.547 m in the first 0.202 s. (a) What is its initial speed as it leaves the ground? _____m/s (b) What is its speed at the height of 0.547 m? _____m/s (c) How much higher does it go? _____m Use distance vs time: d=vi*t - 1/2 g t^2 solve...
*January 25, 2007 by TechnoBoi11*

**math**

Solve: (don't forget about imaginary numbers) 5x^2-7x+12=0 how do I solve this? do I need to use the quadratic formula? please help and thank you
*March 12, 2012 by Anonymous*

**Math**

I really, really need help! Solve for the indicated variable. 8x+4y=12 Solve for y. Explanation too, please! Please and thanks!
*January 4, 2012 by Izzy.*

**Geometry :(**

this maths problem is wrecking my head.... 1.find the points of interesction of the line L and the circle k in the following L:x-2y=0 K:X Squared + y squared=25 I would solve both equations for y, and then you'll have a system with two equations and two variables: y = x/2 y...
*September 9, 2006 by emer*

**science -need so info.**

Ms. Sue, I have to do a paper on mitigation strategies and solutions. Detailed description of the problem. Nonliving and living factors that contribute to or are affected by the problem positive or negative human impacts evaluation of current sustainability Benefits and ...
*August 9, 2008 by rose (Ms. sue)*

**Math Help Please...**

x/3-2/3=1/x *Solve the rational below. I really need help. Multiply through by 3x x^2 -2x = 3 And solve. I don't get it... can you explain it more.then I can help you Margie
*March 4, 2007 by Margie*

**My First Quarter Grades (PLEASE READ!!!!) **

What is my grades for the first quarter? I didn't get my report card because my parents didn't go to the parents teacher conference so yeah but today my guides counselor show it to me (my grades for the first quarter) they didn't calculated my average. Here are my grades: ...
*November 18, 2011 by Laruen *

**Religion**

i need to write an essay about if anne frank's life is relevant to teenager's today. Please hele me!!
*June 24, 2012 by Ellie*

**>science/research<**

hi i need a few websites where i can find information that can help me prove that the animals that existed in the past were far more dangerous anddifferent than the animals of today
*April 13, 2008 by Markeda*

**Math please help! Im so confused!**

it is estimated that at the turn of the 20th century, one farmer in the U.S could feed 25 people, whereas today, the ratio is about 1 to 130. How many farmers would it take today to feed 2600 people? Please help i dont even know how to do this problem!
*January 9, 2013 by Tina*

**Physics**

A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? I've been told that I need to use the height of the jump to solve for V. Then I need to use that V in the equation...
*October 10, 2007 by Lindsay*

**physics**

A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! ...
*April 24, 2012 by Akbar*

**physics**

A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! ...
*April 25, 2012 by Akbar*

**SCIENCE**

I have 2 questions that I need help with please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. 2. How are velocity, speed, and acceleration related? I know how they are different only. Thank you
*November 29, 2012 by QUICK PLEASE HELP*

**chem**

Can someone please help me with the following questions? 1:Suppose you were given an ancient wooden box. If you analyze the box for carbon-14 activity and find that it is 50% of that of a new piece of wood of the same size, how old is the wood in the box? 2:How old is an ...
*January 2, 2007 by Margaret*

**college algebra--I really need help!!**

solve the following exponential equation. exact answers only. 1-9x 2x 2 = e I hope that you understand this question. I don't and need some help please. Can you show all answers please.
*November 25, 2012 by Ladybug*

**General**

This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and have at most a 6 ...
*September 6, 2012 by Samantha*

**Computer Science**

Help me please! I need help with Floating Point Notation when converting biary and regular numbers! Please. I just need some help and would appreciate it greatly. Also instant message me at TRbal10. Thank you
*October 14, 2007 by Tiler*

**simple interest**

What is the amount after 1 year on $315 invested at 7%, if interest is simple interest? Multiply $315 by .07 to find the interest earned. Add this figure to $315 to find the total at the end of one year. this doesnt help me!i need to know this and they gave me is to solve a ...
*March 28, 2007 by victoire*

**Algebra**

I am so confused with some word problems math is not my strong point here is the problem if you know how to solve it please tell me how to solve but just dont give me the answer Austin has 42 paperback books that are either Mysteries or science fiction. If he has 16 more ...
*August 23, 2005 by danielle*

**Science Helpers**

My science post is almost at the bottom and I need it to be checked urgently. I see science helpers on this site as of right now.--Can you please have a moment to look at my Science post. Thank you very much in advance:-)
*April 6, 2010 by Sara*

**English - Classics**

I've been writing a personal response on the Great Gatsby and need some specific examples of how my idea "Money does not equal happiness" or "Money corrupts" is relevant to today/today's society
*November 6, 2012 by Ebug*

**Physics Drwls**

I was wanting help with my physics post and since no one replied I thought there wasn't a physics tutor on Jiskha, but came back on today cause I really need to get a hang of my physics stuff and luckily seen you Drwls. A bike rider approachea a hill with a speed of 8.5m/s. ...
*November 22, 2011 by Fizzylicous*

**political science- PHL**

hello can u help me please? write a few words about Machiavelli, Locke and how they are relevant today? John Locke is another philosopher who is considered as relevant today for some of his ideas he expressed. His writings were a great influence to the founders of United ...
*December 1, 2012 by jenny*

**the big idea of energy KS3**

what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big idea of energy is? ...
*October 22, 2006 by blue babe*

**chem**

1. A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL? How many moles do you need? moles = M x L. please help today
*December 1, 2010 by moon*

**Science/DUE TODAY**

please help!!! quick!!! How is a polar bear adapted to living in a desert? (behavioural and physical)!!! write something that is a good answer and that i can understand.
*April 23, 2013 by Daisy Walker*

**World History**

I need help finding examples of imperialism in today's world? And then explain why is it an example of imperialism. PLEASE HELP THANKS ALOT Try the following: http://www.google.com/search?hl=en&lr=&as_qdr=all&q=allintitle%3A++%22imperialism+today%22+ Tam, First decide what ...
*May 25, 2007 by Tam*

**Science**

The water we drink today is the same water that the dinosaurs once drank. Please explain answer.
*October 6, 2009 by Earl*

**science **

please help me i am in 4th grade and i need help on my science project. my science project is, is smiling contagious and i have no idea what to do for research and data
*November 25, 2012 by kaylee *

** 3rd grade science**

1)list five ways germs were spread in pioneer days. 2)list the names of the various pioneer diseases.star the ones that make people sick today in north America. Can you please help me with my homework please.
*March 5, 2009 by saira*

**Science math **

Can no one help me? I posted a question earlier I don't need answer I need to understand what I did wrong my thinking is that if I have a 2:1 ratio And my total is 99 that if I divide by 3 then I can get the amounts 33x2 is 66, then 33x1 is 33 so it would be 66:33. I used this...
*October 18, 2012 by Maria*

**Math**

solve the equation: 1/3+5/27=4/9-8m-2/3+9m+2/27 please please please i need help on thissss!!!!!! =D <3 Marcie
*January 12, 2011 by Marcie <3s Jeffrey*

**writing**

The cost of new homes is high today. Many people are purchasing older homes in need of renovation. the most effective combination of sentences 1 and 2 would include which of the following groups of words? 1) although many homes need renovation 2)although the cost of new homes ...
*June 10, 2011 by Ruth*

**Math**

I need help on how to solve this type of problem please. 29.)Solve the inequality and express the solution in terms of intervals whenever possible. 1/(x-2) ≥ 3/(x+1) THE ANSWER IS: ( -∞,-1 ) U ( 2,(7/2) ]
*August 12, 2012 by Alex*

**Deciding on a H.S. Science Course**

I'm currently a sophomore, and I need to plan a science course for next year. Do you know if colleges require physics? Would a college prefer to see physics on my transcript in oppose to Environmental Sciences or Astronomy? Thanks!!
*February 16, 2009 by Coralie*

**Final Project**

I need to find 4 children songs/lyrics in between the copyright date of 2004-2009. I have search the Internet 4 days and I have no luck.I need 2 Spanishand 2 English version. Can someone help me please. I need this today.I have to have the name of the song,publisher, city, ...
*May 11, 2009 by Cynthia*

**Science**

I need help with 2 questions please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. Wikipedia and other sites just gives me the definition of the law of conversation. 2. How are velocity, speed, and ...
*November 29, 2012 by Please Please Help*

**Math **

Abe Frill wants to attend AVP Tech. He will need to have $15,000, 7 years from today. How much should Abe put in the bank today (12 percent quarterly) to reach his goal in the future? (Using the Calculator)
*November 28, 2011 by Anonymous*

**Science gr 8**

Hi I really need help !! What are the 3 problems fluid technology has helped solve? I posted this question up onlie a few days ago but I was only given a google page Can someone please actually state the 3 problems or give me a proper site thank you =)
*May 6, 2009 by Hello*

**Global science**

Exponential growth is stopped when______equals. there are no choices and I don't hve an answer. I am learning about Growth and population.My science book is called Global science Earth/ environmental systems science by Kendall Hunt publishing company. It is the seventh edition...
*November 1, 2010 by Anonymous*

**Finance**

You can deposit 10,000 into an account paying 9% annual interest either today or exactly 10 years from today. How much better off will you be at the end of 40 years if you decide to make the initial deposit today rather than 1o years from today?
*September 16, 2011 by Sky*

**science fair **

I need to do a project for the science fair but I don't know what to do. My science teacher says it has to be like the water dancing on a penny, everything has to be the same but you have to change one thing. What can I do?????? HELP ME PLEASE :/
*October 9, 2012 by Molisa*

**math**

I need help solving these equations -5s+3s-2s=48 6m=5m-2+m 5d=-2d-24 you need help or you want someone to solve them for you? ;) please solve : ) thanks okay well pretty much solve for s in the first question and m for the second question and d in the third and when you think ...
*October 30, 2006 by courtney*

**science accelerated **

Can you please list only the CONS about technology in the food we eat today. If you can't then look for a website with the cons. Thanks.
*September 25, 2013 by rod*

**5th math**

what is the average number of hot dogs sold? 12,12,13,17,21,22,22,22,22,30,32,37. please! show me this how to solve this problem? my last question for today.thank you very much without your help . it;s impossible to understand this problem.
*January 27, 2011 by pat*

**science**

I really need some help...so please give me an acrostic for the word; "science"
*June 11, 2008 by crhris*

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