Questions Asked on
March 6, 2008

Physics EM
An ammeter is connected in series to a battery of voltage V_b and a resistor of unknown resistance R_u The ammeter reads a current I_0. Next, a resistor of unknown resistance R_r is connected in series to the ammeter, and the ammeter's reading drops to
asked by Spencer 
Physics
Our sun rotates in a circular orbit about the center of the Milky Way galaxy. The radius of the orbit is 2.2 1020 m, and the angular speed of the sun is 1.2 1015 rad/s. (a) What is the tangential speed of the sun? m/s (b) How long (in years) does it take
asked by John 
calculus
Use the linear approximation (1+x)^k=1+kx to find an approximation for the function f(x)=1/square root of (4+x) for values of x near zero.
asked by Anonymous 
Baseten concept
What are the groupable models and the pregrouped/Trading models of baseten concept? How are they different? I have been searching for a definition for these terms but my efforts deem unsuccessful. Could u asset me plzz.
asked by Tee 
Chem II  Equilibrium
A 2.00 mol sample of nitrogen dioxide was placed in an 80.0L vessel. At 200 degrees C, the nigrogen dioxide was 6.0% decomposed according to the equation: 2NO2 in equilibrium 2NO + O2 Calculate the value of Kc for this reaction at 200 degrees C. I have
asked by Ken 
reading
Can someone please help me. I am suppose to describe the setting of The Wounded Wolf by Jean Craighead George and only have a three paragraph excerpt from the book. I can't describe it from that. Thanks
asked by Anonymous 
geometry
A parallelogram has the area of a 507 square centimeters, and its height is 3 times its base. What are the base and height?
asked by Katie 
Advance Chemistry
A series of measurements are made in order to determine the molar mass of an unknown gas. First, a large flask is evacuated and found to weigh 134.567 g. It is then filled with the gas to a pressure of 735 torr at 31°C and reweighed; its mass is now
asked by A51AN 
precalculus
find the cube roots of 216 answer in polar form and complex
asked by courtney 
Chem II
Would either of the following reactions go almost completely to product at equilibrium? a)2NO + 2H2 at equil N2 + 2H2O Kc = 6.5 x 10 113 b)COCl at equil CO + Cl Kc = 3.6 x 10 16 How do you figure this out?
asked by Ken 
Physics
A cart of mass M1 = 4.00 kg and initial speed = 4.00 m/s collides head on with a second cart of mass M2 = 2.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. i keep getting the wrong answer please help me.I
asked by josh g 
algebra
Janelle wants to enlarge a square graph that she has made so that a side of the new graph will be 1 inch more than twice the original side s. What trinomial represents the area of the enlarged graph?
asked by melony 
Trig
Find the exact value of: tan(3pi).
asked by Jon 
Trig
Find the exact values of the six trigonometric functions 0 if the terminal side of 0 in standard position contains the points(5,4). (0 is not the number zero I don't know what its called) I have to find r first. r=sqrt x^2+y^2 r=sqrt 5^2+4^2 r=sqrt 41
asked by Jon 
physics
An 8.00kg package in a mailsorting room slides 2.00 m down a chute that is inclined at 53.0 degrees below the horizontal. The coefficient of kinetic friction between the package and the chute's surface is 0.400.Calculate the work done on the package by
asked by Erin 
Maths
In order to make some home improvements, a home owner spent $40,000. He paid 20% as a down payment and financed the balance of the purchase with a 36month fixed installment loan with an APR of 7.5%. Determine the home owner’s a) total finance charge and
asked by Marty 
Physics
An automatic drier spins wet clothes at an angular speed of 4.8 rad/s. Starting from rest, the drier reaches its operating speed with an average angular acceleration of 3.6 rad/s2. How long does it take the drier to come up to speed?
asked by Zach 
chemistry
how many liters of 0.100 M HCL would be required to react completely with 5.00 grams of calcium hydroxide?
asked by mac 
physics
Television sets sometimes use a "rabbitears" antenna. A rabbitears antenna consists of a pair of metal rods. The length of each rod can be adjusted to be onefifth of a wavelength of an electromagnetic wave whose frequency is 60.0 MHz. How long is each
asked by bill 
Physics
The Earth has an electric field with magnitude roughly 100 N/C at its surface. A) Assuming there is a point charge at the earth's center creating this field, how much charge does the earth posses? Treat the earth as a sphere of radius 6.37 * 10^6 m. B)As
asked by jenish 
C programming
I'm suppose to write a program using functions and modules that accepts six names from the user and print it back to the screen. It should then ask the user which name they want deleted and print to the screen all the other names except the one deleted. It
asked by Mitchelle 
Chemistry
I have to make a game based on the periodic table Here are the standards we could put in the game: Students know how to relate the position of an element in the periodic table for it's atomic number and mass Students know how to use the periodic table to
asked by johnny 
chemistry
name the following compounds and tell what type of compound they are (binary ionic, ternary ionic or binary molecular) FeBr3, b) CBr4 and c) Na2Cr2O7
asked by hokoslavia 
Calculus 2
Tom and Joel are good runners, both able to run at a constant speed of 10 mph. Their amazing dog Trot can do even better, he runs at 20 mph. Starting from towns 60 miles apart, tom and joel run toward each other while Trot runs back and forth between them.
asked by Needster 
Trig
Rewrite 9pi/5 radians in degree measure. 9pi/5 =9pi/5(180/pi radians) =1620/5 =324 degrees
asked by Jon 
Probability
MY MAIN PROBLEM IS FIGURING OUT WHAT DISCRETE DISTRIBUTION TO USE, BERNOULLI, BINOMIAL, DISCRETE UNIFORM, GEOMETRIC NEGATIVE BINOMIAL, OR POISSON. Every time I choose one, it's the incorrect one. Is there some way I can easily find out which one to use.
asked by Amelie 
English expression
1. Can you greet the person you meet for the first time in English? 2. What is the relationship between the people who greet each other? 3. Can you introduce your friend and answer the question in English? 4. Who and who are being introduced?
asked by John 
Technology
What are some key points historically in which we can say that science became reliant upon technology? We know that technology is a product of science, but at what point did science rely upon technology to make its investigations, and its claims to
asked by anonymous 
Advance Physics
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.48 m. Two of the spheres have a mass of 2.18 kg each. The third sphere (mass unknown) is released from rest. Considering only the
asked by A51AN 
biology
Hello, I have a question. For one molecule of glucose are there six CO2 molecules released during cellular respiration? I'm looking at the kreb/ citric acid diagram and I'm not sure if it is four or six CO2 molecules being released. I'll appreciate your
asked by Bizzy 
Physical Science
Hello, Can some one please tell me if B is the correct answer? Thank You Which one of the following groups of chemical compounds is composed entirely of organic compounds? A. C2H4O, CH2O, CaSO4, C3H5(OH)3 B. C6H6, C2H5OH, C6H5CH3, C3H5(NO3)3 C. C2H2, CH4,
asked by Mandi 
Biology
What type of cell would you expect to have more mitochondria, a skin cell, or a cardiac muscle cell? Explain why. Thank you all!
asked by Biolover! 
Physical Science
Hello, Do I have the right answer? my answer D Thank You, In the chemical equation Zn+2HCL > ZnCI2 + H2, the reactants are A: zinc chloride and hydrogen B: zinf and hydrogen carbonate C: zinc chlorate and water D: zinc and hydrochloric acid
asked by Mandi 
Math
What is the best way to study for a math test? Also, what is the best/most efficient way to write a math test? The format of my tests is usually basic questions, and then word problems. I'm always pressed for time at the end, so I have to scramble when
asked by Lucy 
Physics
Suppose you walk toward a mmirror at 2 m/s. How fact do you and your image approach each other? Explain your reasoning.
asked by Pam 
English expression
e. I'm glad to meet you. 'glad to' is pronounced as a linking sound like one word. In these words, the d is a voiced sound, and the t is a voiceless sound. However the articulation points are the same. In this case, the d sound is dropped. Meet you is
asked by John 
Trig
Solve ABC if C=90 degrees, B=20 degrees, and b=10. Round measures of side to the nearest tenth and measures of angles to the nearest degree. So all I need to do for this problem is find A,a,c right? I know that A=70 b/c 90+20=110 and 180110=70 but how do
asked by Jon 
biology
Compare and contrast the Central Nervous System and the Peripheral Nervous System. Thank you
asked by Loren 
social studies
what did delegates at the constitutional convention hope to accomplish
asked by claudette 
math
help i am failling math!!! worksheets and any more practice will kill me!! help
asked by Anonymous 
Trig
Find the exact value of: sin405. reference angle=225 sin225= .707106781 = .71
asked by Jon 
Maths
Use the compound interest formula A=p(1+r/n)nt to compute the total amount of the investment if $7500 is invested at 9% compounded monthly for 4 years.
asked by Andy 
Math
Find the missing length for the right triangle 7 & 25
asked by Sherri 
English expression
There are five menus on the right on the homepage. If you click the menus, you can get the information of the owner of the homepage.  Are the expressions correct? Do we have to say 'buttons' instead of 'menus'?
asked by John 
math
I don't understand this problem at all. It involves finding the line of best fit. The question says, for a set of data, the line of best fit is y= 3x4 and that r^2 is 0.22. What is the correlation coefficient? I don't know how to solve this.
asked by Leah 
English expression
e.g. Guess What? What is the full form of Guess What?
asked by John 
chemistry
Consider the following chemical equilibrium: SO3(g) > SO2(g) + 1/2 O2(g) and Delta H = 98.9J a. Predict weather the forward or reverse reaction will occur when the equilibrium is disturbed by: i. adding oxygen gas ii. compressing the system at constant
asked by linda 
Math(Solve the system)
So I guess I have to: Solve the system using any algebraic method. I'm not sure how so here is the problem I'm stuck on. 9x5y=30 x+2y=3
asked by Nick 
Trig
Rewrite 25 degrees in radian form. 25 =25(pi radians/180) =25pi/180 radians =5pi/36
asked by Jon 
Trig
Find one angle with positive measure and one angle with negative measure coterminal with 310 310+360=50 310360=670 so 50,670
asked by Jon 
Social studies
Who was the last EMPEROR of Haiti?
asked by Kerry 
math
I must simplify this equation and am having a hard time (5+2a+3a)(a2+a6) I also would like to know if you could help me with this onex(4x2+3x5)2(4x2) this is also simplifing. I have a really hard time with these, thank you
asked by kristina 
Trig
Find the exact value of cot(pi/6). I don't have a lot of work for this one all I have is 30 I guess that was suppose to be the reference angle. answer .58
asked by Jon 
SCIENCE
IF AN OBJECT IN A CIRCULAR MOTION BEGINS TO MOVE FASTER, WHAT HAPPENS TO THE CENTRIPETAL FORCE?
asked by MELISSA 
Geometry
What units in the metic system would you use to measure each of the following quanities? a. distance from los angeles to new york b your waist measurement c. width of a hat d. your height The united States emitted 19.5 million t of nitrogen oxides (NO)into
asked by Sherri 
math
is 4x to the 3rd power a monomial?
asked by ray 
Math
A tree casts a shadow that measures 5m. At the same time,a meter stick casts a shadow that is 0.4m long. How tall is the tree?
asked by Danielle 
Biology
Give 2 reasons why the theoretical yield and actual yield of ATP per glucose molecule are different. Thanks!
asked by Bilover! 
Physics
You came across an egg that was a perfect sphere. You placed it in a tub of water and found that it displaced exactly 280,000 cubic centimetres. However, it was floating on the water, and only 72% of the surface area of the egg was below the water line.
asked by Andrea 
English expression
In Western culture, a man is introduced to a woman and a young person is introduced to an elderly person. (Is this expressions grammatical?) e.g. Mina, this is Mike. Mike, this is Mina. In this words, who is being introduced to whom? Is Mina being
asked by John 
unknown
What are some particular industrial revolution technologies that aided in the growth of the cities, and pushed us away from agriculture?
asked by susie 
englishessay
i have to write a critical analysis of "The Trial" by franz kafka. and i wanted to know what points i should cover in my essay. also how many paragraphs should my essay consist of.
asked by sasha 
English expression
A: What is your specialty? B: My specialty is taking pictures. B1: It is taking pictures. B2: Taking pictures is my specialty. B3: Taking pictures in it.  Is this dialogue correct? Are all answers are acceptable?
asked by John 
Calculus
"I would like to integrate the following equation. It is a chemical rate equation (Arrhenius) where I have temperature & relative humidity as functions of time. Both are sinusoidal, reflecting a typical yearly climate": e^(Integral(k*RH(t))dt), where
asked by A51AN 
physics
how do you find the focal distance when a problem only gives you the object to screen distance of a projecter, and the object and image heights?
asked by Jmax 
Math
A 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence. 1/2 cup of Campbells new england clam chowder provided 6% of the MDV of iron/
asked by Kim 
CHEMISTRY
If 0.500 liter of gas X weighs .0750 what is the molecular weight of X? (Volume measured at STP) THANKYOU
asked by Soraya 
Health
What is the name of the structure above the cellular level?
asked by Sharon 
Watersheds
What part of the enviornment manmade make up watersheds?
asked by Ondrah Simpson 
History
The Protestant Reformation challenged the Catholic Church's authority throughout Europe, what was the Catholic Church's response to restore order and consolidate their power throughout Europe and the rest of the World?
asked by Taylor 
The History of Umbrellas
True or false? In England of the 1700s, men and women conformed to the same customs regarding umbrellas. I say false. Am I right?
asked by Anonymous 
Trig
Find the exact value of: sin60cos60. do I just type sin60cos60 in my calculator? = .37
asked by Jon 
preal
5(2x3)+8=9 how do you solve this?
asked by maddie 
Math
Fast Freddy was driving his new red Porche down the road at 65 miles per hour when he suddenly saw Officer Friendly behind a bush holding a radar gun. Freddy quickly hit his breaks and slowed his car to 45 miles per hour within about 4 seconds. What was
asked by Mike 
psychology
Describe and evaluate two theories of moral development.
asked by caroline olusola 
Physics
Iceland uses a voltage of 220v instead of of the US 110v. So you fly to Iceland with a box of bulbs ,that has been assorted with 30, 60 and 90 Watt light bulbs.U connect it through icelandic electrical socket. The fact that u 'll actually be using AC
asked by jenish 
math
I have a question about Exponential Growth. The problem is: You deposit $350 in an account that pays 9.5% interest compounded yearly. What is the balance after 6 years? I don't know how to write the equation for this. Does anyone have an idea what the
asked by Natalie 
Health care please check answer
Please check my answer thank you :) How are children hospitals paid ? (excluded from Medicare acute care PPS) My answer they are paid based on reasonable costs.
asked by Lauren 
Algebra
Aki's Bicycle Design has determined that when x hundred bicycles are built, the average cost per bicycle =0.9x^21.7x+10.861, when C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
asked by Becky 
arithmetic
There is going to be a tournament to decide which of 8 football teams is the champion. On the first Saturday the 8 teams will play each other in 4 games. on the second saturday the winners of the first 4 games will play,and on the third saturday the
asked by shante 
please check my answer health insurance
Please check my answer thanks :) True or False If an enrollee uses more services then first thought they would per the PPOM calculation then the plan would show a loss for that period I said True
asked by Lauren 
math
How would I find the a for the equation y= a(xh)^2+k. I'm looking at a graph, and I can solve for everything except for a. What is it supposed to be?
asked by Erica 
Math
Samantha's speedometer reads in kilometers per hour. If the legal speed limit is 55 mi/h how fast can she drive?
asked by Kim 
Physics
A highvoltage line of length 175 m is carrying a current of 105 A at a point on the earth where its magnetic field is 5 * 10^(5) T and points North,34 degree from the vertical axis. A) what is the magnitude and direction of the force on the wire if the
asked by jenish 
Math
one last one, so sorry! thanks so much! how would I test the series for convergence or divergence? the series from n=1 to infinity of 1/(arctan(2n))
asked by Anna 
Physics
Your friend says that the wavelength of light waves is less in water than in air. Do you agree or disagree, and why?
asked by Pam 
science
You came across an egg that was a perfect sphere. You placed it in a tub of water and found that it displaced exactly 280,000 cubic centimetres. However, it was floating on the water, and only 72% of the surface area of the egg was below the water line.
asked by Andrea 
calcProbability  PLEASE HELP!
Your friend tosses 3 coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win $X. If not, you lose $1. How large should X be in order for this to be a fair game?
asked by anonymous 
spanish
What does complir anos mean?
asked by LaToya 
Chem
what is an advantage and a disadvantage of using an oil shale?
asked by Jacksonb 
ScIeNcE
How does nature recycle nutrients?
asked by Mike 
science
what exactly is a tropical coast?
asked by keke 
Social Studies
What was it like in the day of a Knight during the MIddle Ages
asked by John 
Percents
The minimum daily values (MDVs)for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence. 1 ounce of Tostitos provides 9% of the MDV of fat 1/2 cup of
asked by Sherri 
math
Your friend tosses three coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win $X. If not, you lose $1. How large should X be in order for this to be a fair game?
asked by anonymous 
arithmetic
There is going to be a tournament to decide which of 8 football teams is the champion. On the first Saturday the 8 teams will play each other in 4 games. on the second saturday the winners of the first 4 games will play,and on the third saturday the
asked by shante 
Englsih
Can i have your opinion about taking the High School Exit Exam...do you want to take it or not and why?
asked by Christie 
Algebra
During a clothing sale, 1/4 of the store merchandise is reduced in price. Find the probablility that 3 of 5 randomlyselectled shirts have reduced prices.
asked by Jon 
Math Calculus
Your friend tosses three coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win $X. If not, you lose $1. How large should X be in order for this to be a fair game?
asked by Karan Shah 
mathaverage
What is SUM AVERAGE? The professor mentioned that the exam average was 58 [out of 100] and sum average was 144
asked by see 
math
the recipe for pasta salad will serve 6 people, and there are 32 people attending the party. I know that when i added all the ingredients i had i got 11.24, and so then i multiplied by 5 1/3 which is 16/3... but i'm not sure if that is right considering
asked by Cynthia 
Biology
Can someone please explain the role of NAHD and FADH2 in cellular respiration, I don't understand, no matter how many diagrams/explanations I read. Thanks!
asked by Mcbiology 
Math
A particle is moving at some constant speed. Use the following information to answer the following questions. s(t)=100/t©÷+12; t¡Ã0; see represents feet and t represents seconds a)Find the velocity and acceleration equations for this particle. b)When
asked by Kelsey 
Vocabulary
Unlike the colorful parasols of centuries ago, many modern umbrellas are a ________ black. a. unique b. traditional c. harmless d. boring The solution will be a synonym of "innocuous." The answer's c, right? Or would it be b?
asked by Anonymous 
religion
the sacred scriptures is more than a pile of old stories. Any websites you can give me to help with this?
asked by Kurst 
Math
You have an unknown function that is monotone increasing for 1 < x < 5 and have the following information about the function values. With the clear understanding that there is no way to get an exact integral, how would you try and approximate the area
asked by Karan Shah 
Human Services
Why are integrated information management systems important in human service organizations? Can you also give an example?
asked by Kimberly 
Analysis and Design
You are in the implementation phase of a project and your customer indicates they need a specific change to the project that changes the scope of the deliverables. How would you handle this request and why?
asked by billy 
Calculus (improper integrals)
the integral from 0 to lnx of lnx/(x^1/2) thanks!
asked by Chelsea 
french
can you give me some useful italian words say if you where going o holiday?
asked by Anonymous 
math
Please help A school had 900 students at the start of a school year. If there is an enrollment increase of 7% by the beginning of the year, what is the new enrollment? A virus scanning program is checking every file for viruses. It has completed checking
asked by Kim 
Math
Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary? Yi Chen made a $6,400 investment at the beginning of a year. By the end the year,the value of the investment had decreased by 8.2%. What was its value at the end
asked by Danielle 
math
what is greater 34.481 or 34.479
asked by @@@@ 
calculus
The volume of a right circular cone is given by V=(1/3)3.14r^2*h, where r is the radius and h is the height. Find dV/dt if r=4, h=5, dr/dt=6, and dh/dt=3 Please try to show as much work as possible
asked by Anonymous 
Math
Ms. Jordan has been given a loan of 2500 for 1 year. If the interst charged is $275, what is the interest rate on the loan?
asked by Kim 
english
choose the sentence wich contains a idirect object
asked by yousra 
LAL
I need info about the book Homework by Margot Livesy
asked by Eric 
Humanities
I need the name of a 20th century figure whose work/artistic contributions can be classified in both the age of modernism and the age of pluralism
asked by Danni 
Vocabulary
No one would think of objecting to this practice, unless a(n)________ tip from an umbrella hit someone in the face. a. stickingout b. sharppointed c. individual d. everpresent The solution is a synonym of "obtrusive." Is the answer a or b? I'm torn
asked by Anonymous 
Physical Science
Hello, In the following question can someone please tell me if I have the correct answer? Thank You My answer: B The Molecular Mass of Sodium Oxide (Na2O) is A.38.98917 B.61.97894
asked by Mandi 
Math
Estimate the number of pints in 49 3/4 cups?
asked by Tray 
JOBS
Does a salesperson use line graphs to show their sales in.. 6 months?
asked by LILY 
Trig
Find the area of ABC if A=56 degrees, b=20ft, and c=12ft. 1/2(20)(12)sin56 1/2(240)sin56 99.5
asked by Jon 
SCIENCE
How protein assists with immunity
asked by Anonymous 
math
How would I calculate exponential regression?
asked by Helen 
precalc
Solve sinx+cosx=0 Thanks!
asked by Andrea 
history
What were the stategies of the axis powers during WW11 used to build up their countries? Also, Why did we use the atom bomb and what were the other options?
asked by grace 
chemistry
is calcium carbonate a base? (whats its ph?)
asked by matt 
calculus
find the conjugate on z times w if z=[3,120] and w=[1,15]
asked by tyler 
Biology: URGENT
Can someone please explain the role of NAHD and FADH2 in cellular respiration, I don't understand, no matter how many diagrams/explanations I read. Thanks!
asked by Mcbiology 
Math Calculus
You have an unknown function that is monotone increasing for 1 < x < 5 and have the following information about the function values. With the clear understanding that there is no way to get an exact integral, how would you try and approximate the area
asked by Karan Shah 
Social Studies
I am trying to find information on comparing the Western states with the Midwestern states in the following areas: Land/Climate, Resources/Economy, and People.
asked by Austin 
Math
How would I test this series for convergence of divergence? the series from n=0 to infinity of sin(2^(n))
asked by Anna 
Math
[ 2[27(2938)] simplify ]
asked by Ashley 
Vocabulary
The governor may have had an important message, but he delivered it rather ________. I am supposed to use a form of the word "prosaic." Is the missing form "prosaically"?
asked by Anonymous 
math
Help!!!!! I can't seem to bring my grades up!!! I study and anything! HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
asked by Vanessa 
math
Can someone please help me with my question? I don't understand how to find the line of best fit.
asked by Leah 
Math
Your friend tosses three coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win $X. If not, you lose $1. How large should X be in order for this to be a fair game?
asked by Anonymous 
CALC  area under a curve
You have an unknown function that is monotone increasing for 1
asked by anonymous 
ss
in 1750 where did most colonist come to america from?
asked by lucretia 
Math
how would I test this series for convergence of divergence? the series from n=0 to infinity of (n^2+1)/(n^3+1)
asked by Anna 
drwls
Thank you very much.
asked by Pam 
business law
Some argue that translation gains orlosses are not important so long as they have not been realized and are only accounting entries. What is the other side of the argument?
asked by Jeannie 
math
3w+1=1 what does w =
asked by cat 
french
can you give me some useful italian words say if you where going o holiday?
asked by Anonymous 
math prealgibra
give a reason for using graphs that does not apply to bar grephs
asked by joe5555