Friday

September 19, 2014

September 19, 2014

Total # Posts: 828

**Physics**

Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.1 M Ohm measured between two electrodes placed 20cm apart along the leaf. The leaf has a width of 2.8 cm and is 0.20 mm ...
*February 17, 2010*

**Physics**

The relatively high resistivity of dry skin, about 1x10^6 Ohm m, can safely limit the flow of current into deeper tissues of the body. Suppose an electrical worker places his palm on an instrument whose metal case is accidently connected to a high voltage. The skin of the palm...
*February 17, 2010*

**Physics**

You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, using all the metal, with a resistance of 1.7 Ohm. What length l will you choose for your wire? What diameter d will you choose for ...
*February 17, 2010*

**Physics**

An electric catfish can generate a significant potential difference using stacks of special cells called electrocytes. Each electrocyte develops a potential difference of 110 mV. How many cells must be connected in series to give the 350V a large catfish can produce?
*February 17, 2010*

**Physics**

When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?
*February 17, 2010*

**Physics**

You've made the finals of the Science Olympics! As one of your tasks, you're given 1.8g of copper and asked to make a wire, using all the metal, with a resistance of 1.3 Ohm. Copper has a density of 8900 kg/m^3. What length will you choose for your wire(in meters)? ...
*February 17, 2010*

**math**

what is the value of y- coordinate of the solution to the system of equation x + 2y = 9 and x- y= 5
*January 28, 2010*

**science**

what are the answer
*January 24, 2010*

**6th grade**

How do you convert 3.84% to a fraction?
*January 19, 2010*

**pre-calculus**

is y=x to the 8th power an exponential function
*January 5, 2010*

**Systems operations management**

o A cost-benefit matrix that compares the alternatives. o The effects the alternative will have on productivity. o Possible benefits of using a network strategy to streamline operational procedures.
*January 5, 2010*

**Systems operations management**

1.a cost-benefit matrix that compares the alternatives showing the cost-benefit for each alternative. 2.the effects the alternative will have on productivity. 3.possible benefits of using a network strategy to streamline operational procedures.
*January 5, 2010*

**science**

what type of enironmental change might stop the development of an organic sedimentary rock?
*December 30, 2009*

**arithmetic**

(3/4) x (1/2) (3/8) of a cup.
*December 9, 2009*

**6 grade math**

Let x be Jack's age. Let y be Jen's age. x = 2y - 2 x + 3y = 66 So: 2y - 2 + 3y = 66 5y - 2 = 66 5y = 68 y = 13.6. So she's about 13 and a half years old.
*December 9, 2009*

**physics [sound]**

The coval tract can be assumed to act like a cylindrical tube closed at one end (at the larynx), having a length of 17.5 cm. On the basis of this, what would you expect to be the first three formant frequencies of the voice?
*December 9, 2009*

**physics**

Take the length of a trombone to be 275 cm in the first position. How far does the slide have to be moved to lower the pitch one semitone? [Remember that the length is increased by twice this amount.]
*December 9, 2009*

**math 6 grade**

It's multiplying by four each time. So.. 1st Month: 2 2nd Month: 8 3rd Month: 32 4th Month: 128 5th Month: 512 6th Month: 2048
*December 9, 2009*

**math**

1 + 1 + 17 + 17 2 + 2 + 16 + 16 3 + 3 + 15 + 15 4 + 4 + 14 + 14 5 + 5 + 13 + 13 6 + 6 + 12 + 12 7 + 7 + 11 + 11 8 + 8 + 10 + 10 9 + 9 + 9 + 9 So there are 9.
*December 9, 2009*

**7th grade**

if 50 grams equal to 150 calories,how many grams equal to 1,000 calories
*December 8, 2009*

**Math**

The cost of a new car is $16,000, which can be financed by paying $3000 down $300 per month for 60 months. Use the actuarial method to find the unpaid interest. Instead of making the thirty-sixth payment, the borrower decides to pay the remaining balance and terminate the loan...
*December 2, 2009*

**math**

The price of a home is $120,000. The bank requires a 10% down payment and two points of closing. The cost of the home is financed with 30-year fixed-rate mortgage at 8.5%. Find the total cost of interest over 30 years.
*December 2, 2009*

**history**

explain how reagan's policies reflected conservative politics and contributed to stimulation of the economy
*November 28, 2009*

**Math**

86.25% write as a fraction in lowest terms
*November 15, 2009*

**Math**

If a salesman is paid a $2,100 commission on the sale of a $35,000 sailboat, what is his commission rate?
*November 14, 2009*

**Math**

1/2, 2/3, 3/4, 0.95
*November 14, 2009*

**Math**

write 1/2, 3/4, 2/3, 0.95 from least to greatest
*November 14, 2009*

**Math**

1/2, 3/4,
*November 14, 2009*

**6th Grade Math**

3w-3=W+3
*October 28, 2009*

**biology**

what is cell division called
*October 22, 2009*

**math**

Thanks ms sue
*October 11, 2009*

**math **

Ms sue is it 1 5/12
*October 11, 2009*

**math**

2 2/3-n=1 1/4
*October 11, 2009*

**math**

N+3/4=1 1/2 what is the n?
*October 11, 2009*

**algebra**

c. frequency of occurence
*October 8, 2009*

**math **

Juan Says "When you put together unequal groups you can only add" ishe correct? explain
*October 5, 2009*

**math**

JUAN SAYS "WHEN YOU PUT TOGETHER UNEQUAL GROUPS YOU CAN ONLY ADD IS HE CORRECT? EXPLAIN
*October 5, 2009*

**latin**

what is the latin abbbreviations for speak at will, and the rest, against, afterthought, and others, take this, and which see? what is the meaning of the latin words ad lib, vs, cf, and q.v.
*September 19, 2009*

**geography**

What are the 5 themes of geography?
*September 13, 2009*

**math**

the length of a rectangle is 5 ft more than twice the width. a)if x represents the width of the rctangle, represent the perimeter of the rectangle in terms of x. b) if the perimeter if the rectangle is 2 ft more than eight times the width of the rectangle, find the dimensions ...
*September 12, 2009*

**science**

can you explain the science of cooking
*September 9, 2009*

**math**

how do I solve 9+(P+3)
*September 2, 2009*

**math**

9+(P+3) P=?
*September 2, 2009*

**math**

what is 4m=20
*September 2, 2009*

**Financial officer Interview**

What happens when the interviewer or manager overuses questions?
*August 28, 2009*

**chemistry**

your experiment yielded 50kg of NaCl (D= 4.5g/ml. What volume of your yield is this in liters?
*July 13, 2009*

**Math**

6 1/24
*July 7, 2009*

**math**

Bill Shass pays a property tax of $3,200. In his community, the tax rate is 51 mills. What is Bill’s assessed value? (Round your answer to the nearest dollar amount. Omit the "$" sign in your response.)
*May 5, 2009*

**math**

1) The Vietnam Memorial in Washington, DC is an angular wall. If you are standing at the vertex of the angled monument and you wish to back up always staying equidistant from the side walls, describe the path you would take. 2) Describe fully the locus of points 6 units from ...
*April 25, 2009*

**math**

1) The Vietnam Memorial in Washington, DC is an angular wall. If you are standing at the vertex of the angled monument and you wish to back up always staying equidistant from the side walls, describe the path you would take. 2) Describe fully the locus of points 6 units from ...
*April 25, 2009*

**Math**

5.67
*April 20, 2009*

**com 140**

How do you apply the knowledge of effective business communication in your current or future job and college courses?
*April 20, 2009*

**Physics**

5.94m/s
*April 12, 2009*

**math**

The cross section of an attic is in the shape of an isosceles trapezoid. If the height of the attic is 9 feet, BC=12 feet, and AD=28 feet, find the length of line AB to the nearest foot. The triangle of the trapezoid is triangle ABE and the bases are BC and AD. Could you also ...
*April 11, 2009*

**math still need help**

i dont understand the way this is being worded. where did 46 come from? what does vs and vb stand for?
*March 20, 2009*

**math**

Solve the problem. A cruise boat travels 48 miles downstream in 3 hours and returns upstream in 6 hours. Find the rate of the stream.
*March 20, 2009*

**math help please**

i am getting lost somewhere...
*March 20, 2009*

**math help please**

Solve the problem. A boat can go 33 mph in still water. It takes as long to go 300 miles upstream as it does to go downstream 360 miles. How fast is the current?
*March 20, 2009*

**similarity proofs**

Given: (AX/CX)=(BX/DX) prove: angle B = angle D
*March 12, 2009*

**college**

Does this passage contain an argument? Will a beverage begin to cool more quickly in the freezer or in the regular part of the refrigerator? Well, of course it'll cool faster in the freezer! There are lots of people who don't understand anything at all about physics ...
*March 11, 2009*

**2nd grade Social Studies**

Thank you Mrs. Sue
*February 24, 2009*

**2nd grade Social Studies**

Name 4 things that link countries together.
*February 24, 2009*

**7th grade math**

15x-9=21
*December 10, 2008*

**physics**

Sun will turn into a red giant star one day. Today the sun has a mass of 2*10^30kg and a radius of 70km and an angular velocity of 2.85*10^-6 rad/s. How fast are the particles moving at the surface of the sun? When the sun turns into a red giant its mass will be 75% of what it...
*December 7, 2008*

**math**

i need help with these problems please [6-2x]<4 which is the numeral set for [2x-]<5 1.[x]-4<x<1] 2.{x]x<-4orx>1} 3.{x]-1<x<4} 4.{x]x<-1orx>4}
*December 4, 2008*

**science**

where in the atmosphere does most weather occur.
*November 17, 2008*

**science**

Working on animal cells. Have to label what make up an animal cell in order 1-8 of the following; nucleus, cell membrane, vacuole, cytoplasm, mitochondria, goligi body, endoplasmic reticulum, ribosome??? Not sure where to start. Can not open the last website. Please help!!!
*October 27, 2008*

**science**

can not get the website to open up
*October 27, 2008*

**science**

Working on animal cells. Have to label what make up an animal cell in order 1-8 of the following; nucleus, cell membrane, vacuole, cytoplasm, mitochondria, goligi body, endoplasmic reticulum, ribosome??? Not sure where to start
*October 27, 2008*

**science**

Need to find the sequence of how an animal cell starts. Need the order
*October 27, 2008*

**ac electronics**

if the total current in a two-branch parrallel circuit is 500 mA AND THE RESISTIVE CURRENT IS 250 mA, what is the value of inductive current
*October 7, 2008*

**7th grade**

how do you do metric conversions
*September 30, 2008*

**Math**

9,234-:[3.3(1+8^3)] What do you do with the 9 and the 513 within the brackets? What step is next, what is the answer?
*September 9, 2008*

**9th grade technology discovery**

i'm doing a career report and i need a good website to get info on nuclear power workers. ex: outlook , description , ect
*August 28, 2008*

**9th grade technology discovery**

i'm doing a career report and i need a good website to get info on nuclear power workers. ex: outlook , description , ect
*August 28, 2008*

**tech**

technology is anything man made and information technology im not to sure about but i think it is that technology is man made and tech info is info made by technology.
*August 28, 2008*

**Math**

Can anyone tell me if these functions are odd, even, or neither. Also, what is the domain, range, x-intercept, and y-intercept of these functions? 1. f(x) = x^2 - 3x + 6 2. f(x) = cubicroot(x)
*August 19, 2008*

**Axia College**

First of all there are spelling errors because most prob. do not write their blogs in word first so they have spell check. I do because I can't spell, never could. Thank goodness for spell check. I have been with Axia for a little over a year I have 16.5 weeks to finish my...
*August 7, 2008*

**physics**

Hey do you go to proyecto? =] Look to the response to Jodie!
*July 22, 2008*

**physics**

THANK YOU FOR YOUR HELP!!!
*July 20, 2008*

**physics**

a kangaroo jumps to a vertical height of 2.55m.How long was it in the air before returning to Earth? pleaseee anwser it is due in 1 day!!!!
*July 20, 2008*

**IT205**

Write a 1050-1750 word paper in APA format outlining the development of a high-level computer network design for the Bead Bar. Your paper should include the network topology that you think should be used, the network architecture, and the advantages and drawbacks that the ...
*July 11, 2008*

**Algebra**

thanks for your help
*July 2, 2008*

**Algebra**

Solve. x^2+6x-4=0 x=-3+ã13,-3-ã13
*July 2, 2008*

**social studies**

how does the geography influence the culture of an area?
*June 10, 2008*

**Algebra**

x+y=-8 3x-y=-4
*May 16, 2008*

**Chemistry**

I have to write a paper and bring in examples of each type of mixture for a class feast(so it needs to be edible). I want to know if i'm correct on the two that i have and i need an example of another and why it is it. I have Kool-Aid for a solution, jello for a colloid, ...
*April 13, 2008*

**Math**

12 is 40% of what number?
*March 17, 2008*

**algebra 2**

Suppose that you have received an unexpected inheritance of $36,000. You have decided to invest the money by placing some of the money in stocks and some in bonds. To diversify, you decided that five times the amount in bonds should equal three times the amount invested in ...
*March 12, 2008*

**chemistry**

how is a chemical mixture distinguished from a chemical compound?
*March 3, 2008*

**english**

what is a suffix
*March 3, 2008*

**more chem**

What is the pH that would result from the addition of 0.002 moles of HCl to 100 mL of a 0.1 M boric acid/borate, pH= 9.2 buffer solution?
*February 7, 2008*

**chem**

What should you mix with trisodium citrate to prepare a buffer solution, a strong acid or a strong base?
*February 7, 2008*

**English**

Thnks, I'll try them out
*January 22, 2008*

**English**

I need help quick, I need to write a speech with anecdotes and it needs to make the audience laugh. the title is How Not To Write A Speech or 30 Reasons Not To Do A Speech So what could I use for this?
*January 22, 2008*

**Calculus**

Given two problems: Problem A: Tau = Integral(0 to v) v/(q^2 - v^2) dv q = constant Problem B: Tau = Integral(V TO 0) v/(q^2 - v^2) dv q = constant Why is it that, SUBSTITUTION RULE is used in problem A, and QUOTIENT RULE is used in problem B? The two problems are somewhat ...
*December 19, 2007*

**algebra**

On Monday, Voltaire drove to town at 60 miles per hour. On Tuesday, he drove to town at 40 miles per hour. If the totaling traveling time for both trips was 15 hours, how far was it to town? I know distance=(rate)(time).so I set it up like this...x=distance X/(60)(15) + x/(40...
*December 11, 2007*

**algebra**

Charles opened the old trunk and found $6750 in $1 bills and $10 bills. If there were 150 more ones than tens, how many of each kind were there?
*December 9, 2007*

**Math**

I still do not understand how to solve the following problem. Please show step-by-step. x = Integral (0 to v) dv/(q^2-v^2) where q = constant the answer is --> x = 1/2q ln (q+v/q-v) 1) Where 1/2q came from? 2) Where ln came from? Is there a formula for it? Please help!!!!!!!
*December 8, 2007*

**Algebra**

Yea I think I get it now..thanks!..I'm working on a similar problem ..definetly will post to check if its correct
*December 7, 2007*

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