Sunday
December 21, 2014

# Posts by Bobby

Total # Posts: 600

Physics- Circuits
A 100-microCoulomb parallel-plate capacitor is charged with a 24V power supply, then is disconnected from the power supply. a) The plates are moved 0.01 m apart to 0.05 m apart. What happens numerically, to the: i. Capacitance of the device? ii. Potential difference between ...
April 12, 2008

Algebra
ln e^lnx-ln(x-3)=ln8 First of all the "ln of e" cancels out, so it is just: ln(x)-ln(x-3)=ln(8) which is the same as: ln(x/(x-3))=ln(8) e^ both sides... x/(x-3)=8 x=8x-24 7x=24 x=24/7
April 12, 2008

algebra1
y-6=x 10x-4y=12 plug first equation into second equation: 10(y-6)-4y=12 10y-60-4y=12 6y=72 y=12 12-6=x x=6
April 12, 2008

Math
-52.4576 is the correct answer. ln9^(x+6)=ln7^x (x+6)*ln(9)=x*ln(7) (x+6)/x=ln(7)/ln(9) x/x+6/x=.885622 1+6/x=.885622 6/x=.885622-1 6/x=-.114378 x=6/(-.114378) x=-52.4576
April 12, 2008

Physics- Circuits
At time t=0, a potential difference of 475 V is applied to a coil with an inductance L=0.642 H and a resistance R=36 ohms. How long does it take to reach 20 percent of maximum energy in the inductor?
April 12, 2008

math riddle ALGEBRA WITH PIZZAZZ
this is hard
April 6, 2008

Physics DC Circuit
In the last drawing you can sort of get the idea of how my circuit is drawn (its still flawed obviously) but if you redraw on a piece of paper it is easy to see. Any input is appreciated. Sorry for all the posts. I can't tell how it will come out until it is actually posted.
March 26, 2008

Physics DC Circuit
|-----2-----------------2--------| |*****************|**************| ___***************5**************3 *-****************|**************| |****************___*************_ 2*****************-*************___ |*****************|**************| |****************I3...
March 26, 2008

Physics DC Circuit
|-----2 ohm r-----------2 ohm r--| |*****************|**************| ___************5 ohm r********3 ohm r -****************|**************| |****************___*************_ 2 ohm r***********-*************___ |*****************|**************| |****************I3...
March 26, 2008

Physics DC Circuit
A |-----2 ohm r-----------2 ohm r--| | | | ___ 5 ohm r 3 ohm r - | | | ___ _ 2 ohm r - ___ | | | | I3 | | | | |-----<I1<---------------<I2<----| B Hopefully my drawing came out right because I can't find a way to attach the picture of the circuit. Key: 2 ohm r...
March 26, 2008

math...help me! this is hard!!!!
No problem! These kinds of probs are fun =]
March 26, 2008

math...help me! this is hard!!!!
Scoop water using the 3 liter jug and poor it into the 10 liter jug. Do this 3 times. You should have 9 liters in the 10 liter jug. Pour from the 10 liter jug into the 7 liter jug until the 7 liter jug is full. You should have 2 liters in the 10 liter jug now. Scoop up another...
March 26, 2008

algebra 1
She walked half the distance, or 2 miles. 2 miles * 1h/3mi = 2/3 hours 2/3 hours or 40 minutes
March 25, 2008

math
It depends. Usually you split up the irregular figure into many regular figures which you add up. I don't know what math you're in. If you give me specifics I can help you out more (up to one step above BC Calc)
March 25, 2008

Geography
Could also be Caucasus Mountains
March 25, 2008

Geography
Ural Mountains
March 25, 2008

math
Is that equal to something? Do you want to factor it? If it's an equation and this is only one side of it, then the first step is probably to factor it anyways, so 6x^2+7x-3=(2x+3)(3x-1)
March 23, 2008

Math
8 and 7/8ths 8*(8/8) + 7/8 64/8+7/8 71/8 8.875
March 23, 2008

Math
24in=2ft 15in=1.25ft 2ft*1.25ft=area of 1 poster=2.5 sq feet (2.5 sq ft)*6 posters=15 square feet of material.
March 23, 2008

Math
area of table=pi*(3.5)^2=3.14*(3.5)^2=38.465 (38.465 sq ft)*(6 dollars/sqft)=230.79 dollars
March 23, 2008

Math
3.07, 3.071, 3.0712, 3.0717, 3.072, 3.078
March 23, 2008

Math
6 is the greatest common factor 12*18*30=6480 Divide the product of the numbers (6480) by the greatest common factor (6) So 6480/6=1080
March 23, 2008

Physics-Gauss' Law, hard
Damon, you are amazing... Tell me if you get the second one please, I'm still having trouble. In the meantime I temporarily took over your role answering all the math questions =].
March 23, 2008

Physics-Gauss' Law, hard
Thank you Damon for answering my first questions fast and accurately. Do you or anybody else know how to do these harder Gauss' Law Problems? 1. A solid metal sphere of radius R has charge +2Q. A hollow spherical shell of radius 3R placed concentric with the first sphere ...
March 23, 2008

psycology
I'm not taking psychology but I looked online and got this (look at 3rd paragraph if you want to jump right into it- I'm not sure if that's what you're asking about). This site specified Glutamic acid, Glutamine, and Glutamate: Glutamic acid is an organic acid ...
March 23, 2008

Physics-Gauss' Law
1. If a surface is a 10 meter by 10 meter plane lying in the y-z plane, what is the vector representing the area of the plane? 2. If a sphere of radius 2 meters is placed in a uniform electric field of 3 N/C, what is the net flux through the sphere? 3. Show how Gauss's Law...
March 23, 2008

word unscramble in french
What is it like to F*** a doggy or a puppy?
March 11, 2008

word unscramble in french
what is alueti unscambled in french?
March 11, 2008

math
what do you call it when somebody spens 20 years in the 24th row of a theater?
February 19, 2008

math
what do you call a person who spent 20 years in the 24th row in the theatre?
February 19, 2008

i'm french can u help me about english??
what does homer est le fre're de bart mean in french
February 14, 2008

Algebra
Solve for x: 5abx = 30ac^2
February 10, 2008

Algebra
Lisa had a box of apples. She gave 1/3 of them to henry and 1/4 of the remainder to ale. If there were still 30 apples left, how many did she have at the start?
February 3, 2008

Algebra
Each of my sons has as many brothers as sisters, but each of my daughters has only half as many sisters as brothers. How many children do i have?
January 18, 2008

english/witchcraft/Puritans punishment HELP
Why was public humiliation felt to be more severe than imprisonment in the Puritan community? ANY HELp WOULD BE GREAT! THANK YOU
January 16, 2008

Algebra
Make this into a trinomial square and solve for x. 4.6x=54-x^2
January 14, 2008

Algebra
I reduced a diagram on my computer using a scale factor of 8o%(i.e. the linear dimensions of the diagram were reduced so they became 80% of the original dimensions). What scale factor is required to return the diagram to original size?
January 13, 2008

L.ARTS
nouns ending in ful for their _____ by adding s. I can not seem to find this answer.
December 30, 2007

math 2
955 the beat
December 18, 2007

Algebra
Simplify: 2p^5/p^4
December 9, 2007

AP Biology
In cattle, the gene pair for red (RR) or white (WW) coat color shows an absence of dominance. Heterozygotes (RW) have a roan coat. Outline a breeding procedure to establish apure breeding herd of red cattle from a roan bull and white cow. A cattle breed wants to establish a ...
December 4, 2007

science
what is cellular respiration
November 18, 2007

physics
Is a current carrying wire electrically charged? Explain.
November 11, 2007

HOW WOULD YOU integrate this equation between zero and pi/2 1/(1+(tan^2008)xdx
October 25, 2007

Algebra
Factor, then evaluate 17*9-17*8
October 23, 2007

science
THERE ARE THREE SOURCES OF RESISTANCE IN A PARALLEL CIRCUIT . TWO OF THEM ARE RATED AT 20 OHMS, THE OTHER AT 10 OHMS .WHAT IS THE CIRCUIT,S TOTAL RESISTANCE
October 12, 2007

Algebra
Deduce this game of cows and bulls: Guess cows bulls 245 2 ___ 354 2 ___ 423 2 ___
September 29, 2007

Algebra
find the postitive solution for c: c^2=o.6^2+0.8^2
September 29, 2007

Algebra
Calculate, in yards and feet, the perimeter of the playing field. Width=160 Length=360
September 24, 2007

Algebra
A train takes 40 min to travel 18 mi. What is the average speed? ___mph
September 24, 2007

Algebra
finish the equation 1.6+4x=8
September 22, 2007

pigskin geography
SHUT UP u losers do the god-dam work by ur self so shut the hell UP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
September 19, 2007

Infant and toddler
What are some adult interactions that support self control,compliance,and social competence and how do they benifit from clear guidence goals?
September 17, 2007

Algebra
find all possible values for n so that 9 is also and interger 9/n+1
September 16, 2007

Algebra
find all possible values for the interger n so that 9 is also a interger --- n+1
September 16, 2007

Algebra
find the volume of the prism below. A=24cm2 2.5cm
September 16, 2007

Algebra
Expand 6(3-2x)
September 16, 2007

1.How would you accomplish exposure netting with currencies to two countries that tend to go up and down together in value? 2.Developed country partners in countertrade contracts have had problems with quality and timely delivery of goods from the developing country partners. ...
September 13, 2007

inb
1.How and why would a seller make a sale to a buyer that has no money the seller can use? In the event that the seller does not need the money, the seller will gain by holding PAPER. In this event I sell you the house, you pay the closing costs and sign for a mortgage. The ...
September 13, 2007

inb
1.How would you accomplish exposure netting with currencies to two countries that tend to go up and down together in value? 2.Some argue that translation gains or losses are not important so long as they have not been realized and are only accounting entries. What is the other...
September 13, 2007

inb-help
could you just give me some web sites please
September 13, 2007

inb-help
1.Why is an exporter that is to be paid in six months in a foreign currency worried about fluctuating foreign exchange rates? 2.Are there ways in which this exporter can protect itself? If so, what are they? 3.How does the credit or money market hedge work?buy protection on ...
September 13, 2007

INB
1.Why is an exporter that is to be paid in six months in a foreign currency worried about fluctuating foreign exchange rates? 2.Are there ways in which this exporter can protect itself? If so, what are they? 3.How does the credit or money market hedge work? 4.Why is ...
September 13, 2007

FIN
1. Current assets that a firm must carry even at the trough of sales are _____________, while current that fluctuate with seasonal or cyclical variations in sales are _____________. a. temporary assets; permanent assets b. permanent assets; temporary assets c. matched assets...
September 12, 2007

Physics
Another Question---- A ball of clay of mass m travels with a velocity v in a path tangent to a disk of radius R and mass M. The clay collides with the disk tangentially to its outer rim (a totally inelastic collision) and the clay and disk begin to spin about the axis. a.) ...
August 3, 2007

Physics
A yo-yo is spun from rest by pulling on the string with a constant tension of 2.0 N. The radius of the inner rod on which the string is strung around is 0.50 cm. The tension is applied for 5.0 seconds after which the yo-yo is observed to spin with an angular velocity of 15 rad...
August 3, 2007

I am given a project to Develop and Incorporate a Business. I decided about video game business for example companies that make big systems like xbox. What is the concept? Type of Entity?: LLC Reason for selecting Entity? Financial Assistance? Marketting Audience? who are the ...
April 18, 2007

I am given a project to Develop and Incorporate a Business. I decided about video game business for example companies that make big systems like xbox. What is the concept? Type of Entity?: LLC Reason for selecting Entity? Financial Assistance? Marketting Audience? who are the ...
April 17, 2007

I am given a project to Develop and Incorporate a Business. I decided about video game business for example companies that make big systems like xbox. What is the concept? Type of Entity?: LLC Reason for selecting Entity? Financial Assistance? Marketting Audience? who are the ...
April 16, 2007

Psychology
I need to find a source for my paper and it is on Sigmund Freud's panic disorder. http://www.google.com/search?source=ig&hl=en&q=Freud+panic+disorder
April 11, 2007

Physics
The star has a mass n_1 times that of the planet, which orbits this star. For a person on the planet, the average distance to the center of the star is n_2 times the distance to the center of the planet. In magnitude, what is the ratio of the star's gravitational force on ...
April 10, 2007

Physics
A block is connected between two springs on a frictionless horizontally level track. The other end of each spring is respectively anchored to a vertical pin set at opposite ends of the track. The spring constant for one spring is k = 100N/m and the mass of the block is 0.300 ...
April 4, 2007

Physics
A racecar driver speeds around a circular track of radius 100 m at a velocity of 50 km/hr. The coefficient of friction us between his tires and the road is 0.20. It begins to rain, reducing us to 0.15. What must he change his velocity to in order to maintain his path without ...
March 29, 2007

science
No, how is it maintained in the DIGESTIVE SYSTEM???
March 27, 2007

Spelling
Brother:Mother::Fly:_ _ _ _ brother is to mother as fly is to______ What are your choices? fhgvhfduigbvfuis visgfebgjdfgjeghjkdsfgjebvvuydfgvuygugugvuegvuggdjfgrtuer jhfdgsuyfuegfuyguegugruhgieyigygjhguirighyi grtghuhdgghuofhydugiotrjghodrhoigrjeioghfihbhrgkhs ...
March 8, 2007

help me math
if the percent was 56 what would the fraction value be and the decimal value Please read my previous answer to "kate" http://www.jiskha.com/display.cgi?id=1173141658
March 6, 2007

Math
Can you help me? 360 in^ = _____ ft^ ( ^ means 2 ) So which would the answer be: 30, 3.6, 2.5, or 1.8 Wouldn't it be 30? (If I'm working this right)! Thank you!! Thank you A square foot = 12 inches by 12 inches = 144 square inches. What does dividing that into 360 ...
February 28, 2007

1 2/5 divided by 21 Which example is correct 7/5 * 1/21 = 7/105 = 1/15 or is it? 5/7 * 21/1 = 105/7 =15 You asked this question yesterday. The answer is still the same.
February 23, 2007

health
how long does arthritis last?? For the rest of a person's life. http://www.google.com/search?q=arthritis&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA There is never a need to post a question seven times in four minutes. Please refrain ...
February 11, 2007

science
Is acid rain a homogeneous or heterogeneous mixture? If we mean that each drop of rain may not have the same amount of acid in it as the next drop, it must be heterogeneous. That would mean that each drop of rain absorbed different amounts of the appropriate oxide(s) forming ...
January 16, 2007

spelling
what is the answer to accept except threw ?
January 16, 2007

math
3x+5=2x Subtract 5 from both sides. Subtract 2x from both sides. X=-5
December 8, 2006

math
5x-12=2x-21 add 12 to both sides. subtract 2x from both sides. divide both sides by the coefficent of x. i agree
December 8, 2006

Fact Familys
0+3=3 1+2=3
November 30, 2006

computer science
Heh i have thes ame problem
November 29, 2006

Watershed?
Hahaha guess what...I'm not in FLVS!!!!!!!
November 1, 2006

physics
A gun that shoots bullets at 469m/s is to be aimed at a target 45.7 m away ans level with the gun. How high above the target must the gun barrel be pointed so that the bullet hits the target? Which equation would I use? I should have gotten 4.8 cm for the answer... Find the ...
October 25, 2006

physics
A gun that shoots bullets at 469m/s is to be aimed at a target 45.7 m away ans level with the gun. How high above the target must the gun barrel be pointed so that the bullet hits the target? Which equation would I use? I should have gotten 4.8 cm for the answer...
October 25, 2006

physics
You throw a ball toward a wall with a speed of 25m/s and at an angleof 40 degree above the horizontal. The wall is 22m from the realease point of the ball. a) How far above the release point does the ball hit the wall? b) What are the horizontal and vertical components of its ...
October 25, 2006

PHYSICS
During a tennis match a player serves the ball at 23.6 m/s with the center of the ball leaving the raquet horizontally 2.37m abovet eht court surface. The net is 12m away and .9m high. When the ball reaches the net a) does the ball clear it and b) what is the distance between ...
October 24, 2006

Identifying controls and Variables
I NEED HELP ON THE identifying the control and variable sheet with the simpsons
October 1, 2006

ph+chem#2
Hey, can you help me on this last question. I dont understand how I can figure it ouyt without any indicators or solutions. Please help! 13. Three solutions labelled A, B, and C are known to have pH values of 4.0, 6.5, and 8.0. Write an experimental design including diagnostic...
August 4, 2006

pH???+chem!
7. A few drops of bromothymol blue indicator are placed into 250 mL of 0.20 mol/L HCl(aq). A sample of 1.8 g of NaOH(s) is then dissolved into this solution. The final colour of the solution is predicted to be How can I do this one? What is the pH of the HCl solution? THen, ...
August 4, 2006

graphing!
can someone help me? okay so I am given this : (a) y= x-4 (b) y=2-x I have to graph this manually and find the intersection. okay so I know how to graphi it right with this formula: y=mx+b okay but is the slope how can you tell and what number is the y intercept i belive it ...
July 4, 2006

sturctural formula
how would i the sturctural formula look for this one: dimethyl-propane: my guess that it would be like so: CH3 l CH2 l C-CH2-CH3 l CH2 l CH3 Is this right? Please visit the following: http://images.google.com/images?hl=en&safe=off&as_qdr=all&sa=N&resnum=0&q=%20%...
June 13, 2006

complete and balnces theses reactions
how do i complete and balnces theses reactions???? CH3-CH2-CH3 (g) + Br2 (l) --> like how in the world????? do i do this? lol aint got a clue wish i would have listened at school now. Alkanes usually react with a halogen to form one of several halides. The simplest reaction...
June 13, 2006

carbon!
Why is that carbon can form an infinite number of molecules? http://web.jjay.cuny.edu/~acarpi/NSC/10-organic.htm http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-2/Carbon.html http://biology.clc.uc.edu/courses/bio104/carbon.htm
June 13, 2006

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