Questions Asked on
February 9, 2008

chemistry
3.) A 5.00 x 10^2 g block of metal absorbs 5016 joules of heat when its temperature changed from 20 degrees C to 30 degrees C. Calculate the specific heat of the metal. I used the formula and came with two answers 100.32 joules and 10.01 joules. Which is
asked by mhaidar9108 
Chemistry AP help
7. A 100g mass of tungsten at 100 degrees C is placed in 200 mL of water at 20 degrees C. The mixture reaches equilibrium at 21.6 degrees C. Calculate the specific heat of tungsten. Ok, I tried working it out but I got q= 100g x 4.186 j/g*degrees C * (21.6
asked by mhaidar9108 
french
how do you conjugate aimer mieux? do you just conjugate the aimer part?
asked by Eric 
BioGenetics
In watermelons the allele for green color and for short shape are dominant over the alleles for striped color and for long shape. A plant with long striped fruit is crossed with one heterozygous for both characteristics. The results are: green, short: 14
asked by Matt 
physics
A balloon carrying a basket is descending at a constant velocity of 20.0 m/s. A person in the basket throws a stone with an initial velocity of 15.0 m/s horizontally perpendicular to the path of the descending balloon, and 4.00s later this person sees the
asked by Erin 
Chemistry
A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular weight of the compound For Further Reading Chemisty  drbob222, Thursday, February 7, 2008 at 9:40pm The molarity of the solution
asked by Lauren 
science
What is the difference between a taiga and a tundra?
asked by Anonymous 
MATHPERCENTILES
I JUST TOOK A TEAS TEST(FOR PRACTICAL NURSING ADMISSIONS). THE REQUIREMENTS MUST BE A GRADE IN AT LEAST THE 40TH PERCENTILE IN EACH SUBJECT. THERE WAS A MATH, READING,ENGLISH, AND SCIENCE SECTION. TOTAL OF QUESTIONS WERE 170.MATH45? READING40? ENGLISH55
asked by TORI 
math
Express 5832 as a product of prime factors and hence,find the cube root of 5832 ?
asked by MTH 
Discrete Math  Geometric Vectors
Under what conditions will 3 vectors having magnitudes of 7, 24 and 25, respectively, have the zero vector as a resultant? I don't get this question at all.
asked by Anonymous 
Chemistry
HELP! I am struggling on this question. I think I may or may not have it. Why does Methane has a tetrahedral shape? The Valenceshell electon pair repulsion theory applies which predicts that the shape of a molecule by placing the electron pairs on a
asked by Tim 
Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at 0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then
asked by Lauren 
chemistry
If the reaction is zero order, how long would it take for I2 disappear?
asked by Henry60 
Chemisty
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol? NaCl CaCl2 Fe2(SO4)3 K3PO4
asked by Lauren 
Physics
A "dip needle" is a small magnet mounted on a horizontal axis so that it can swivel up or down. Where on Earth will a dip needle point most nearly verically? Where will it point most nearly horizontally?
asked by Heather 
Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at 0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then
asked by Lauren 
music
Is concertos a genre of the Romantic period that influenced or had an effect on music today? I think it did but I cannot find an example.
asked by Kally 
math
2)For 2000 patients, a bloodclotting time was normally distributed with a mean of 8 seconds and a standard deviation of 3 seconds. What percent had bloodclotting times between 5 and 11 seconds? A)68% B)34% C)49/5% D)47/5% I chose A 4)A music teacher
asked by Jon 
financial accounting
the longterm note payable bears an interest of 12% per year. the unadjusted interest expense account equals the amount paid for the first 11 months of the 2008 fiscal year.(3,300). The 300 accrued interest for april has not yet been paid or recorded.Note:
asked by ben 
Quadratic Make up a problem
I am supposed to write a quadratic equation in the varible x having the given numbers as solutions. Type the equation in standard ax^2+bx+c=0 my solution is 1, only one solution. The equation is __________=0?
asked by Marysvoice 
chemistry
Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. HOH and COH bond angles are all equal to 109.5. B. Dispersion forces affect all three molecules. C. Two lone pairs of electrons are assigned to the oxygen
asked by Anonymous 
algebra
mrs.Goh bought 4 bags of rice at $5.28 per bag ,5 packets of biscuits at $1.25 per packet and 2.8 kg of meat at $7.40 kg per kg.Assuming that GST was absorbed by the retailer,calculate the total amount she spent ? What would be change if she paid for all
asked by MTH 
PRE ALGEBRA
THE AVERAGE WEIGHT W (IN POUNDS) OF AN ATLANTIC COD AGED t YEARS CAN BE MODELED BY THE EGUATION W=1.16(1.44)^t. FIND THE RATIO OF THE WEIGHT OF A 5 YEAR OLD COD TO THE WEIGHT OF A 2 YEAR OLD COD. EXPRESS THIS RATIO AS A POWER OF 1.44!!!!!! HOW WOULD I DO
asked by Mackenzie 
French
Hi yall. I have been trying to write this paragraph on Christmas and I was just wondering if someone could read it and see if im totally off the mark....thanx yall La saison de Noël est mon temps favori de l'année. C’est une fête religieuse et il y a
asked by Rachel 
physics
An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If 1 mJ of work is
asked by Kwang hu111 
Math
A piece of rectangular metal has 8 holes punched in it that lie in a straight line.If there are 1 1/16 inches between the centers of two consecutive holes find the distance from the center of the first hole to the center of the last hole. _______ inches
asked by Mike 
physics
The world record for the discus throw is 74.08m , set by Jürgen Schult in 1986.If he had been competing, not on earth, but on Mars, where the acceleration due to gravity is 0.379 what it is on earth, and if he had thrown the discus in exactly the same way
asked by Erin 
Physics
What is the magnetic effect of placing two wires with equal but oppositely directed currents close together or twisted about each other?
asked by Heather 
Math
If the rise of a roof is 8 feet and the run is 2 feet 8 inches, what is the pitch of the roof in lowest terms when written as a FRACTION? 8 feet = 96 inches 2 feet 8 inches = 24+8= 32 so is it 32/96 which equals 1/3
asked by Mike 
science
Give example of constructive and destructive interference sound waves?
asked by Dj 
spanish
le duele la cabeza  my head hurts or is it I hace a headache me siento cansado  I am tired???
asked by sam 
Chemistry please help!
A Cesium 137 sample has a measured radioactivity of 50 microcuries.Cesium 137 has a halflife of 30 years. How long will it take this sample to be reduced to a residual radioactivity of 6.25 microcuries? Is there a formula to calculate half life?
asked by Mary 
science
Describe how sound is caused by vibration?
asked by Dj 
Science  Proof of Propositional Logics
I am being asked if I can prove P, L, Q? (without using resolutionrefutation). Propositional clauses: 1. P > V 2. !P > (!V and F) 3. (V or F) > Q 4. Q > L From here I was able, with resolutionrefutation, to determine that we cannot prove P but we
asked by Jack 
history
How did U.S. “Manifest Destiny” impact Latin America?
asked by Karen 
French
What's "are you there yet?", "having fun?" and "check our inbox when you get back" in French? Thanks!
asked by Anonymous 
math
Age 014 number of people= 206,423 Age 1534 number of people= 265,778 Age 3554 number of people= 308,946 Age 5574 number of people= 159,092 Age over 74 number of people= 69,264 1)Classify the data in the table. A)positively skewed B)negatively skewed
asked by Jon 
Chemistry
I think I have identified these right but I am confused on the why part of my question. Am I on the right track or should I read some more? Are these organic? If they are why? KMnO4no CH3Ohyes C6H6yes PdCI2no Ch3CO2Hyes Because they are carbon
asked by Sara 
Math
A board 7 3/8 inches is cut to 3/4 of its size. What is the size ? _______ inches
asked by Mike 
world history
Re: Industrial Revolution Apart from external problems including urban crowding, insanitation, pollution, and social and order problems, what may have also been (2) problems created by industrialization/urbanization during this time?
asked by hellga 
economics
what is a country's excess quantity of demand to a nation's? exports or imports
asked by Ruby 
spanish
te sientes bien  are you good???? nos sentimos bien  are we good?? te sientes cansado  are you sad?? se siente cansados  are they sad?? for the test we need to be able to translate these
asked by sam 
Statistics
Age 014 number of people= 206,423 Age 1534 number of people= 265,778 Age 3554 number of people= 308,946 Age 5574 number of people= 159,092 Age over 74 number of people= 69,264 1)Classify the data in the table. A)positively skewed B)negatively skewed
asked by Jon 
math
Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x,
asked by bob 
to srajmcgin
j'ai réfléchi pour "extended family", d'après votre définition, on pourra utiliser le terme de "famille recomposée" je ne pense pas que vous le connaissez car c'est récemment utilisé en france,mais c'est une définitin qui me semble convenir
asked by mktintin 
Government
Today unions (A) have generally experienced a tremendous increase in membership (B) have not succeeded in organizing any whitecollar workers (C) are divided into two large organizations, the A.F.L. and the C.I.O. (D) have generally experienced a decline
asked by Rachel 
math
Could someone double check my answers. 1. Write the number in expanded form 684 answer: (6x100)+(8x10)+(4x1) 2.Give the place value for the indicated digit 8 in the number 138,350 answer: thousands 3. Write the following in the standard form of a number
asked by Kim S. 
spnaish sra McGuin
what is the difference in translation saying someone is feliz contendo ( a) both say happy???
asked by sam 
spanish
estar refriado it is cold or it will be cold the teacher will have these exactly as above and we must translate
asked by sam 
dr bob
I am doing my homework for a spanish test and each time I post a question someone writes somehting disgusting  I am not going to be allowed to use this site anymore  can we ask him to stop
asked by sam 
Economics
In running a regression model with three variables, two of the three come back as statistically significant at the 95% level of confidence. The one that doesn't is the intercept  so is my model still valid?
asked by David 
science
Hare are Vaccines important in preventing viral diseases?
asked by Andre 
spnaish Sra Mcguin
i just got a new lap top and I am setting up my im and stuff this afternoon  hope your hand is feeling better
asked by sam 
French
Hi yall. I have been trying to write this paragraph on Christmas and I was just wondering if someone could read it and see if im totally off the mark....thanx yall La saison de Noël est mon temps favori de l'année. C’est une fête religieuse et il y a
asked by Rachel 
math
The perimeter of the polygon below is 9x1. Find the expression for the missing side length. There are 5 expressions: 3x4, x5, x+1, 2x+3, and ?. I got ?=2x6. I added all the equation and minus it from 9x1.
asked by bob 
math
Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x,
asked by bob 
reading
In reading we have to draw a picture about how dog sleds are loaded. We just finished reading The Call of the Wild by Jack London so this is one of our many assignments and I can't find anything about this on th internet. Thanks so much for any help!
asked by lellie 
science
Explain how amplitude and frequency are related to the energy of wave?
asked by Dj 
Physics
A magnet can exert a force on a moving charged particle, but it cannot change the particle's kinetic energy. Why not?
asked by Heather 
spanish
I have a test on conjugation and I am trying to make sure I have done this right me duelen los pies  my feet hurt Te duele la garganta?  does your throat hurt te duelen las piernas  le duele la cabeza 
asked by sam 
Speed and distance
I can't figure this one out During a trip, a canoe travles 47 miles at r speed. The second part of the trip the canoe travels 9 miles, but 5 mph slower. The total trip is 5 hrs. What is the speed of each part of the trip? I start with 47/r+9/r5=5hrs Then
asked by Marysvoice 
spanish sra mcguin
estar refriado it is cold or it will be cold the teacher will have these exactly as above and we must translate
asked by sam 
French
Hey again, i've made the corrects you suggested...and i was hoping you could proof read just to make sure i did them correctly...Thankz Noël La saison de Noël est l'époque de l'année que je préfère. C’est une fête religieuse et il y a toujours
asked by Rachel 
calculus
how would you do this improper integral 1/(x1) from 0 to 2 this is improper at one, so I split it up into two integrals ln(x1) from 01 and ln(x1) from 12 I then did for the first one the (lim t>1() of ln(t1))(ln(01)) and then the same thing for
asked by sarah 
Math
I need help please A computer can execute 64 instructions per second. How many instructions can it execute in 10 minutes? Multiply 3 1/6 x 9/11 x 6/17. Write the answer in simplest form Divide 6/25 / 2/15. Write the result in simplest form.
asked by Sonya 
SCIENCE
HOW DOES THERMAL UNDERWEAR HELP PREVENT LOSS OF BODY HEAT?
asked by KYLE 
Macro econ
Use the Keynesian model for this problem. Assume the following model of the economy, where c, t, and nx are positive constants: Y=C+Ip+G+NX C= 200 0 + c(YT) T= 400 + tY Ip = 1500 G = 2000 NX = 1000  nxY where c=.75, t=.2, nx = .10 a) What is the
asked by Ty 
Chemistry
Formula of 1,3butadiene The answer I came up with is CH2=CHCH=CH2 Am I close?
asked by Megan 
science
Explain how amplitude and loudness are related?
asked by Dj 
science
What part of science is genomics part of? and what should i list it as under in my science fair project
asked by Brooke 
science
what is a data table
asked by t wilson 
SOSE
I got a big research contract at school and need to locate an original copy of the Advance Australia Fair by Peter Dodds McCormick. Can you please help?
asked by Anonymouse 
science
why does wearing loose clothing on a cold day provide good insulation
asked by kyle 
Pre Algebra
HOW WOULD I GO ABOUT THIS QUESTION? JUNGER SAYS THAT EVEN A 10 KNOT INCREASE IN WIND SPEED CAN BE VERY DANGEROUS FOR A SHIP. PICK TWO WIND SPEEDS THAT DIFFER BY 10 KNOTS, AND COMPARE THE RESULTING WAVE ENERGIES. HOW WOULD I GO ABOUT THIS QUESTION??
asked by Mackenzie 
Living Env.
I know what it is but,what is the formal definition of the Digestive System?
asked by Jessie 
spanish
se siete bien ( question ) are you good se siete bien statement you are good is this correct
asked by sam 
MATh
What is the square route of x Times 3 ifx is equal to 5 cubed? Then triple the answer
asked by Yo 
English 4
what are the steps in writing a good essay?
asked by Mack 
Math
If a car averages about 22 1/2 miles per gallon , and the capacity of the tank is 16 1/4 gallons, how many miles would be expected on a tank of gas?
asked by Mike 
science
Explain how sound is transmitted through a medium?
asked by Dj 
contemporary issues in criminal justice
can anyone help me with this question? what are common privacy rights held by U.S. citizens?
asked by Anonymous 
Businessmarketing
Marketers have observed that consumers are involved in more camping, hiking, boating, fishing, and other outdoor activities because of their __________. A. love of nature B. awareness of nature C. need of exercise D. lack of money E. none of the above I
asked by jen 
spanish
se sieten cansadas  could it also be are they tired instead of do they feel tired I am setting up my im today
asked by sam 
Chemistry
what are three chraracteristics of metalloids and 2 characteristics of noble gases
asked by JOSE 
Math
If the rise of a roof is 8 feet and the run is 2 feet 8 inches, what is the pitch of the roof in lowest terms when written as a FRACTION?
asked by Mike 
Math
Write an equivalent FRACTION to 3/7 which has a numerator of 114.
asked by Mike 
math
There are four angles, a,b,c,d. The measure of angle a is (3x+10) degrees. The measure of angle d is (x+10).What is the value of x? I made an equation 3x+10=x+10. I think the value is 0.
asked by bob 
Math
Mike is told to take 3 1/2 tablets of his 750 mg (milligram) per tablet medication on a daily basis. How many milligrams will he be taking? _______ mg
asked by Mike 
philosophy
What is the meaning of life?
asked by domonic 
calc
how would you do this improper integral 1/(x1) from 0 to 2 this is improper at one, so I split it up into two integrals ln(x1) from 01 and ln(x1) from 12 I then did for the first one the (lim t>1() of ln(t1))(ln(01)) and then the same thing for
asked by sarah 
math
2 5/7 divided 38/21 = ?
asked by mike 
human resources
Degrussa: Strategy and Human Resources in China
asked by Anonymous 
sra mcguin
se siente bien  are you good me siento cansado  I am tired la cancha de futbol  la pista de correr
asked by sam 
spanish
if i have to translate la pisa de correr do i write running track or track
asked by sam 
spanish
i am confused is it you are good or are you good
asked by sam 
Poetry
I am learning about poetry (meter, verse, and foot). I need a website with audio that can allow me to hear the pronunciations of the syllables if stressed or unstressed. Please help me thank you.
asked by laura 
Gurublue( poetry)
Guru Blue, These are two wonderful websites, thank you. However, I need a website that has audio to show me the stressed and unstressed words.
asked by laura 
english
What main words can I use in a persuasive arguement
asked by Bethan 
nursing 112
if you have a ph 7.15, PCO2 22, HCO3 14 then is it compensated or uncompensated
asked by shelia 
world history
What was the history of France in the 1600's?
asked by brittany 
spnaish Sra Mcguin
i just got a new lap top and I am setting up my im and stuff this afternoon  hope your hand is feeling better
asked by sam 
Health
what are the different ways stimulants can enter the body? & is it possbile for certain stimulants to be injected (like by a needle)into the body? & if so what kind of stimulants are injected?
asked by Cynthia 
spanish
is it track or running track
asked by sam