Questions Asked on
April 6, 2014

Math
Phosphorus32 (P32) has a halflife of 14.2 days. If 200 g of this substance are present initially, find the amount Q(t) present after t days. (Round your growth constant to four decimal places.) How fast is the P32 decaying when t = 21.5? (Round your
asked by Vanessa 
math
how many ways can you choose 3 dishes from a menu of 8? my answer is 56
asked by steve 
Math
A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay
asked by Vanessa 
Math
The growth rate of Escherichia coli, a common bacterium found in the human intestine, is proportional to its size. Under ideal laboratory conditions, when this bacterium is grown in a nutrient broth medium, the number of cells in a culture doubles
asked by Vanessa 
statistics
Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d. What is the probability of 130 or more successes (to 4 decimals)?
asked by Vanessa 
Chemistry
1) it is found that .30 M solutions of the three shots Na3X, Na2Y and NaZ have pH's of 8.5, 7.0 and 10.5 not necessarily in order. (X,Y, and Z AE anions. Na is sodium ion) A) explain how anions can act as bases in aqueous solution. Write a chemical
asked by Reggie 
physics
Water towers store water above the level of consumers for times of heavy use, eliminating the need for highspeed pumps. How high above a user must the water level be to create a gauge pressure of 3.00×105 N/m2 ?
asked by Mohanad 
Chem Help!
Assume that a given solution caontains Ag+or Ba2+ or a mixture of both. A reasonable method for doing a qualitative analysis on this solution might be sketched out as followes (remember  means a precipitate forms and  means a solution remains. It is
asked by Anonymous. 
math
An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is 18% copper. How much (to the nearest tenth lb.) of the second alloy must be added to the first alloy to get a 13% mixture.
asked by justin 
Chemistry
Propane (C3H8) burns according to the following balanced equation: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g) Calculate ΔH∘rxn for this reaction using standard enthalpies of formation. (The standard enthalpy of formation of gaseous propane is 103.9 kJ/mol.)
asked by Anonymous 
chemistry
When 0.451g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 26.7∘C to 29.6∘C.Find ΔErxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate
asked by Anonymous 
CHEMISTRY
Write the net ionic equation for the reaction between...(and MUST INCLUDE STATES, please post answers to all so i can verify if im correct and explanation to one of them) a) potassium hydroxide and copper(I) nitrate b) potassium sulfite and lead(II)
asked by NEED HELP PLEASE!!! 
College Chemistry (DrBob222)
Use the Nernst equation to calculate the iron (II) concentration for the following iron/copper electrochemical cell when [Cu2+] = 0.012 M and Ecell = 0.750 V at 35°C. Cu2+ (aq) + Fe (s) > Cu (s) + Fe2+ (aq)
asked by Adrik 
English
"Mental distance" from a rough draft can be achieved by: A. waiting 24 hours before revising B. revising in a different place from where you have finished your revisions C. not sharing your draft until you have finished the revisions D. Using a computer
asked by Angela 
English
Identify the part of speech or the form of speech in the underlines portion of the next sentence. Sleeping is my favorite hobby. A. Helping Verb B. Gerund C. Being Verb D. Infinitive I think it is B..
asked by Angela 
physics
Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 80.0 kg, and the gauge pressure in the tires
asked by Mohanad 
Physic
How much energy is required to change a 40 g ice cube from ice at 25°C to steam at 105°C? Answer in J.
asked by Renee 
English
Revising often involves A. making an outline B. Makes substainial changes in content C. making grammar corrections D. making changes without a computer I think it is B
asked by Angela 
Chemistry URGENT
I need help understanding oxidation I have a problem that states: The proper assignment of oxidation numbers to the elements in the compound LiAsO3 would be: I think the answer is +1 for Li, +3 for As and 2 for O. I think I am confusing oxidation with
asked by linda 
CHEM.
1. a) What species are present in a 3.0 M NH3 solution? b) Qualitatively, what is the pH of this solution? c) What reaction(s) might occur when this solution is added to a solution containing Mn2+? d) What effect will adding HNO3 to the solution from part
asked by Anonymous. 
Chemistry
What volume of Cl2 gas, measured at 687torr and 34∘C, is required to form 27g of NaCl?
asked by Amy 
Chem Help
Consider a solution that contains Ag+ , Ba2+, and Pb2+ each at a concentration of .2M a) You add NaCl until the concentration of Cl is 5.0 x 10^3 M. A white precipitate forms. How do you determine whether that precipitate was AgCl or PbCl2? b) If you
asked by Anonymous. 
English
The common language used in acedemic and workplace settings is called: A.Slang B. Colloquial C.standard English d.jargon I would say jargon
asked by Angela 
Biomechanics
Two ice skaters start out motionless in the center of an ice rink. They then push each other apart. The first skater (mass = 80 kg) moves to the right with a velocity of 2.5 m/s. The second skater (mass = 58 kg) moves to the left at some unknown speed. If
asked by Brendan 
Chemistry
The following questions refer to the following acids and bases. A) Hydrazoic acid HN3 Ka = 1.9 x 10^5 B) Hydrofluoric acid HF Ka = 6.8 x 10 ^4 C) Nitrous Acid HNO2 Ka = 4.5 x 10^4 D) Phenol C6H5OH Ka = 1.3 x 10^10 E) Aniline C6H5NH2 Ka = 4.3 x 10^10
asked by Zachary 
Biology
Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which
asked by Jane 
advanced algebra
Jennifer figures that she uses 2 pens per month. She started the year with 10 pens. How do I write the equation that represents the number of pens, y, she will have after x months.
asked by Colb 
History
What higher education institution were established to assist blacks during reconstruction? is it college?
asked by anonymous 
math
A 50 foot ladder is placed against a building so that it touches a point 40 feet above the ground. The distances ( in feet ) from the foot of the ladder to the building is a. 10 b. 20 c. 30 d. 45 e. 60 please answer and explain
asked by thomas 
physic
How much energy is required to change a 40 g ice cube from ice at 25°C to steam at 105°C?
asked by Renee 
physics
A lightning bolt may carry a current of 1.00 ✕ 104 A for a short time interval. What is the resulting magnetic field 134 m from the bolt? Assume that the bolt extends far above and below the point of observation.
asked by Chris 
math
The wheelers' bill at a restaurant is $63.00.How much money should Mr.Wheeler leave as a tip 15%?
asked by algebra 
PHI 208 Week 3 Reading Quiz
Question 1. 1. It is unfair to criticize the profitmaking purpose of business because: (Points : 1) it is in the nature of corporations and in the definition for their existence to form as a means to organize human effort more efficiently in order to
asked by Jamski 
Chemistry
A volume of water delivered using a buret has a mass of 2.67 g. What was the final volume reading on the buret if the inital volume reading was 0.30 ml? [assume the density of water is 1.00g/mL]
asked by Anonymous 
Statistics
A procedure in regression analysis where Predictor or Independent Variables are coded as 1 or 0 (representing categories) and can be used to produce ANOVA Tables under the General Linear Model is known as…?
asked by C 
Math
The surface area of a prism is 54 square inches. What is the surface area of a similar prism that is smaller by a scale of 1/3? My answer 6
asked by Unknown 
English
Divide the word inseparable into syllables A. Inseparable B.Inseparable C.Inseparable D. Inseparable I think it is C
asked by Angela 
Project management
work breakdown structure deliverables are ignored and replaced with activities or tasks that have been grouped in phases True or false? ****(False)
asked by Patti 
CHEMISTRY
Method for how to get answer? Thank you! For the equilibrium reaction below. To what is Kc equal? N2(g) + 3H2(g) ↔ 2NH3(g) a. [N2] + 3[H2]  2[NH3] b. [N2][H2]3  [NH3]2 c. 2[NH3]  [N2]+ 3[H2] d. [NH3]2
asked by Chemistry 
physics
A cosmicray proton in interstellar space has an energy of 19.5 MeV and executes a circular orbit having a radius equal to that of Mars' orbit around the Sun (2.28 1011 m). What is the magnetic field in that region of space?
asked by Anonymous 
Physics
A bullet is fired horizontally with a speed of 100 m/s aiming at a target 20m away. It misses the target by??
asked by Anonymous 
Statistics
1. For the following research question, specify the parameter and give the null and alternative hypotheses. "Is there a difference in the proportions of male and female college students who smoke cigarettes? 2. For the following research question, specify
asked by A 
Chemistry
What are the signs of dH, dS, and dG for the following and please explain why? Also what does it mean by sublimation, and molten? 1. CO2(s) > CO2(g) (Dry ice subliming) dH = ? dS = ? dG = ? 2. The electrolysis of molten NaCl(l). dH = ? dS = ? dG = ?
asked by Lauren 
Chemistry
My question is ..can anyone explain how to do problem #2? I feel lost. :( And could you also explain why? Problem#1, is that a regular dG = dH  TdS problem? Then using Go = RTlnK to find K? Im just afraid if there are other seps to it.. 1. The combustion
asked by Lynn 
statistics
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z 1.0) P(z 1.0) P(z 1.5) P(z 2.5) P(3 < z 0)
asked by Vanessa 
Chemistry
A sample of gas has a mass of 0.550g . Its volume is 111mL at a temperature of 75∘C and a pressure of 763mmHg . Find molar mass of gas
asked by Amy 
To Anonymous  English Help
I'm sorry but I accidentally removed your post. Homework Help: English help Posted by Anonymous on Sunday, April 6, 2014 at 9:51pm. To look with admiration at someone or something is to ______ but to look at something very closely is to _____. If we seek
asked by Ms. Sue 
English (essay help)
I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs done but I'm having trouble thinking of a proper introduction. My first sentence for my intro is: confederation was the best
asked by Anonymous 
The Open Boat (Short Story)
Who is the narrator of The Open Boat? A) The oiler B) The captain C) The correspondent D) The cook I think it's the correspondent, but I'm not sure. Someone help, please?
asked by Isabella 
math
Mr. Benedict left half of his estate to his wife, onefourth to his son, onefifth to his daughter and the remainder, $5000 to his college. What is the total amount left by Mr. Benedict? a. $ 9,250 b. $ 10,000 c. $ 16,000 d. $ 50,000 e. $ 100,000 please
asked by thomas 
Math
During a flu epidemic, the number of children in the Woodbridge Community School System who contracted influenza after t days was given by the following. Q(t) = 7000/1+249 e−0.6 t (b) How many children had the flu after 10 days?
asked by Vanessa 
biology
In cat, the gene for black coat is dominant to the gene for white coat. A heterozygous black cat is crossed with a white cat. which of the following is true about the ratio of the offspring from the cross? black coat white coat A 1 3 B 3 1 C 4 1 D 4 0 can
asked by Didi 
Chem
The following questions refer to the following system: A total of 30.0 mL of a .10M solution of a monophonic acid (Ka = 1.0 x 10 ^5) is titrated with .20M sodium hydroxide solution. 1) Before the titration begins, the pH of the solution is about A) 2 B) 5
asked by Charlie 
statistics
Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website, February 27, 2008). Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution
asked by Vanessa 
Calculus A 14
Please Help.... A hardboiled egg at 98℃ is placed in a sink of 18℃ water to cool. After 5 minutes, the eggs temperature is found to be 38° C. a) Find the value of P in Newton’s Law of Cooling. b) Find the value of the constant k rounded to nearest
asked by Raven 
CALC 2
Let an = Hn  ln(n), where Hn is the nth harmonic number Hn = 1 + 1/2 + .... + 1/n a. Show that an > 0 for n>= 1 (Hint: show Hn >= integral from 1 to n+1 dx/x) b. Show {an} is decreasing by interpreting an  an+1 as a positive area. (Hint: use the previous
asked by Bae 
Physics
Boxcar A, with a mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest. The boxcars collide inelastically and move together after they get stuck. What is their combined velocity?
asked by DeAnne 
Business
Bob buys a house for 150,000 with a mortgage rate of 5.8% convertible monthly. At the time of purchase he owns a 10,000 20year zero coupon bond that earns 4.5% annually. The bond matures in 15 yeas. He would like to use the proceeds from the bond to make
asked by John 
cape1 physics
a hammer is often used to force a nail into wood.the faster the hammer moves,the deeper the nail moves into the wood.
asked by kimesha 
science
A uniform AB 2m long Rod which exerts a downwards force of 60N at its centre is placed on a knife egde support position 0.8m from A determine the vertical downward force required at A to prevent rotation of the Rod.
asked by mwazzy 
Chemistry
if you have 9.50x10^25 molecules of KClO3 how many grams of KCl and O2 will you get? The balanced equation is 2KClO3 = 2KCl + 3O2
asked by Emma 
Math
Jane has a pizza shop. She has 1 type of crust, 1 type of sauce and 6 toppings. How many 2 topping pizzas can she make. Note the same topping can't be used for 1 pizza
asked by Evan 
physics
You are given a fourwheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the backmiddle of the cart, 0.525
asked by name 
Math
You are about to leave for vacation, but you forgot your socks! You go back to your room but lights are out, can't see. You remember that in your draw you have 10 pair black, 10 pair white and 11 pair blue all mixed up. How many socks do you need to take
asked by Laney 
Biomechanics
While pushing off against the starting blocks at the beginning of a race, Olympic swimming great Michael Phelps generates a force that increases linearly from 0 N to 800 N over the first 0.30 s, and then decreases steadily back to 0 N over the remaining
asked by Brendan 
Discrete Math
There are 150 students taking Discrete Mathematics II, Calculus II, and Physics I courses. Of these 51 are taking Discrete Mathematics II, 111 are taking Calculus II, and 63 are taking Physics I. There are 41 taking Discrete Mathematics II and Calculus II,
asked by Anonymous 
Physics
In the device a 50g mass is hung from a pulley and released. A disk is placed on the platform. The platform has a radius of 5cm. The disk and platform go from rest to an angular velocity of 8.5rad/s in 2.5 seconds. What is the moment of inertia of the
asked by Joe 
math
A rectangular piece of cardboard 9" x 12" is made into an open box by cutting a 2 1/2" square from each corner and bending up the sides. Find the volume of the box if no allowance is made for overlapping of the edges. a. 70 cu. in. b. 154 3/8 cu. in. c.
asked by thomas 
MATH
Which expression is a polynomial???? A: 11 0ver the square root of x B: square root of 11 times x C: x  square root 11 D: 11 over the square root of x to the 2nd power (sorry I am not sure how to insert square root symbols or fractions, so u have to
asked by Amber 
Chemistry
For a reaction that has an equilibrium constant of 9 × 10–9, which of the following statements must be true? A) ∆G° is positive. B) ∆G° is negative. C) ∆H° is negative. D) ∆H° is positive. E) ∆S° is positive.
asked by Katie 
CHEMISTRY
To what temperature would the reaction below need to be heated to have a rate constant of 8.474e4 M1s1 if the rate constant was 2.7000e4 M1s1 at 327.00°C and the activation energy was 166.000 kJ/mol? H2(g) + I2(g) ↔ 2HI(g) a. 609.24°C b.
asked by Chemistry 
CHEMISTRY
The initial concentration of PCl5 was 0.1983 M. It was allowed to decompose at some temperature until equilibrium had been attained (see reaction below). What must be the equilibrium concentration of PCl3? PCl5(g) ↔ PCl3(g) + Cl2(g) Kc = 0.0580 a. 0.1162
asked by Chemistry 
Biomechanics
Olympic cross country ski champion, Henrik Henrikson, is using a new ski wax, Gripola, that is supposed to stop his ski from slipping backwards when he pushes off against the snow (it gives him a coefficient of static friction between the ski and the snow
asked by Brendan 
Science
What are ten observations made by Charles Darwin on his voyage and what are their significance?
asked by Zoey 
Calc 2
Question 2 Let an = Hn  ln(n), where Hn is the nth harmonic number Hn = 1 + 1/2 + .... + 1/n a. Show that an > 0 for n>= 1 (Hint: show Hn >= integral from 1 to n+1 dx/x) b. Show {an} is decreasing by interpreting an  an+1 as a positive area. (Hint: use
asked by Bae 
TO MS SUE Essay help
I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs done but I'm having trouble thinking of a proper introduction. My first sentence for my intro is: confederation was the best
asked by Anonymous 
Math
Alex's favorite restaurant is a buffetstyle Chinese restaurant downtown. Each time he goes, he chooses 2 appetizers and 1 entree. If the restaurant has four appetizers and 5 entrees to choose from, how many, times could Alex go to the restaurant without
asked by Tom 
Algebra
What is the simplified form of 2x + 6 ? 4x  8 (there should be a line between them.)
asked by Sandra 
geometrey
a chord of 42 cm with the distance of 5 cm from center of the circle find the raduis of the circle?/.
asked by sar 
algebra 2
what is the sum of the first 11 terms of the arithmetic series in which asub one = 12 and d=5
asked by kathy 
science
1. Develop hypotheses predicting the efficiency of solar energy from direct sunlight against the 4 variables tested?
asked by debie 
lotto,5 of ninety numbers
I need a chart plan that will help me win Ghana national lottery.
asked by Quayson Nyamiah Alex 
Physics
You are given a fourwheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the backmiddle of the cart, 0.525
asked by Christina 
physics
A train is traveling along a straight, horizontal track at a constant speed of 20 mph (i.e.,a nonrelativistic speed). An observer on the train places paint cans at the front and back of one of the cars. She then detonates the cans. Due to a malfunction,
asked by anonymous 
math
Which of these phrases is correct? A 9 is a multiple of 3 and a factor of 12. B 9 is a factor of 45 and a multiple of 5. C 9 is a multiple of 6 and a factor of 72. D 9 is a factor of 54 and a multiple of 3.
asked by Carlotta 
Math (Trigonometry)
1. If sec x + tan x = 3/2 and 0 ≤ x ≤ pi/2 then the value of sin x is... 2. If 0 ≤ x ≤ pi/2 and tan²x + sec x = 5 then cos x = ... Please help
asked by Patrick 
Math
The length (in centimeters) of a typical Pacific halibut t years old is approximately. (b) How fast is the length of a typical 9yearold Pacific halibut increasing? (c) What is the maximum length a typical Pacific halibut can attain?
asked by Vanessa 
CHEMISTRY
Method for getting correct answer? Thank you! Initially there were equilibrium concentrations of 0.1887 M A, 0.1042 M B. Which of the equations below is correct if the pressure decreased by a factor of 2.40? Use the reaction below. 6A(g) ↔ 5 B(g) Qc =
asked by Chemistry 
CHEMISTRY
Method for getting correct answer? Thank you! The reaction below is an endothermic reaction. What would one have to do to shift the equilibrium to the right? SO2Cl2(g)↔SO2(g) + Cl2(g) a. Decrease the temperature b. Increase the temperature c. Remove some
asked by Chemistry 
CHEMISTRY
Method for getting correct answer? Thank you! Initially there were equilibrium concentrations of 0.1887 M A, 0.1042 M B. Which of the equations below is correct if the pressure decreased by a factor of 2.40? Use the reaction below. 6A(g) ↔ 5 B(g) a. Qc =
asked by Chemistry 
Biomechanics
A person with a body mass of 65 kg was running over level ground with a strong tailwind, while wearing a 10 kg weighted vest. The tailwind applied a force of 125 N to the runner’s body in the horizontal direction. Early in the stance phase, the runner
asked by Brendan 
Calculus II
the gamma function r(x) is defined by r(x)= integral from 0 to infinity of x^n1(e^1)dx. find r(1), r(2), r(3)
asked by chelsea 
English
1. He went out without taking a shower. 2. He went out without a shower. (Are both the same in meaning?)
asked by rfvv 
Chemistry
How would you start and finish these questions by a step by step process? Does Amp equal to Joules? 1. How many grams of aluminum can be produced by the electrolysis of aqueous aluminum chloride by a current of 5.00 amps for 5.00 hours? 2. Consider the
asked by Erika 
physics
A series RLC circuit is made with a C=100pF capacitor, an L=100μH inductor, and an R=30Ω resistor. The circuit is driven at 5×106rad/s with a 1V amplitude. What is the current oscillation amplitude in amps
asked by roger 
Biographical Essay Evaluation (Writeacher)
Revision of second paragraph: "Liesure time is another one of my favorite things about summer. It brings me happiness beyond belief. It enables me to spend time with my family, to take part in the things they wish to do. It enables me to live life without
asked by Victoria 
Math
What are mathematical concepts are used to make string art?
asked by Juanita 
Child Psychology
why do fine motor skills develop slower than gross motor skills?
asked by Chanel 
Physical Science
13. Why can convex mirrors only produce virtual images? Sadly, I can't find this answer in my book. :( Any help would be appreciated, please and thank you!
asked by Alex 
chemistry
what is the molecular mass of a gas if 0.833 g of it occupies 210 mL at 106.3 kPa and 8 degrees Celsius.
asked by lisa 
essay help/english
Social work in Adaption: Ethical Dilemmas and demographics (Wages,hours and job outlook etc.) thank you!
asked by Anonymous 
history
what happened in Tiananmen Square in 1989? My book says that many students died but that was about it. Thanks
asked by Victoria 
Teachers aide
important concept that children learn by modeling other children is associated with which one of the following researchers?
asked by Soso 
TO MS SUE
How many years old is Canada? It became a country in 1867, how old is Canada?
asked by Anonymous 
science
What Develop hypotheses would you predicting the efficiency of solar energy from direct sunlight against the 4 variables tested?
asked by debie 
science
4. How could you increase the electricity generated by a solar cell during the day, when the sun’s angle is constantly changin
asked by debie 
science
2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this.
asked by debie 
maths
Three positive numbers form an increasing G.P. If the middle term in this G.P. Is doubled , the new numbers are in A.P. Then the common ratio of the G.P. Is?
asked by sagar tiwari 
Math
A closed box has a height which is two times it’s width. The length is 15 cm less than five times the width . What is the domain and range for the surface area function ?
asked by Anonymous 
physics
Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter
asked by roger 
APA style Help!!!
Ely, E. (1997, April). The nontraditional student. Paper presented at the American Association of Community Colleges 77th Annual Conference, Anaheim, CA. Retrieved from (web site)
asked by Uygur 
History
How do you think southern whites reacted to president Andrew Johnson’s plan? President Johnson’s Plan (10%+) Offered amnesty upon simple oath to all except Confederate civil and military officers and those with property over $20,000 (they could
asked by anonymous 
physics
A series RLC circuit is made with a C=100pF capacitor, an L=100μH inductor, and an R=30Ω resistor. The circuit is driven at 5×106rad/s with a 1V amplitude. What is the current oscillation amplitude in amps
asked by roger 
CHEMISTRY
Method for getting correct answer for this? Thank you! A mixture containing an initial concentration of 0.1877 M for H2 and 0.1432 M for Cl2 is allowed to come to equilibrium (see reaction below). What must be the equilibrium concentration of HCl? H2(g) +
asked by Chemistry 
CHEMISTRY
Method for getting correct answer? Thank you! What is the value of Kc at 226.85 °C for the reaction below if Kp is 6.24e3 at this temperature? CO(g) + 2H2(g) ↔ CH3OH(g) a. 3.70e6 b. 2.1614 c. 1.08e5 d. 10.5000
asked by Chemistry 
physics
Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter
asked by Anonymous 
Math
Square miles 66, 000 and 1, 000, 000 people. Population density is a rate that is indicates how crowed and area is. A proportion is used to find population density, or number of persons per square mile. Population/area = number of persons/1 square mile.
asked by Alice Urgent 
CHEMISTRY
Method for getting correct answer? Thank You! What is Kp for the reaction below, if Kc = 1.13e3 at 111.2°C? 4A(s) + 5B(g) ↔ 3C(g) a. 1.36e5 b. 1.15e12 c. 1.14e6 d. 8.42e3
asked by Chemistry 
science
Im researching a disease caused by a cellular organelle that does not function properly. My topic is "cardiamuscle disease" and its organelle is the cytoskeleton. Ive searched google but cant seem to find a website to help me begin
asked by Adam 
Biology please help
I have a project due tomorrow and i cant find a good place to start. Cardiacmuscle disease is a disease that is a result of the cytoskeleton not functioning properly. I cant find anything on cardiac muscle disease. THIS IS NOT CARDIOMYOPATHY
asked by Adam 
Quick English help
Put the following words in the correct place in these sentences. Revoke, Provoke, Invoke A. If we put something off until later, we _____ it. And something done for posterity is done for ____. If a Congressional Medal of Honor is awarded posthumously, it
asked by Anonymous 
Math/Physics
Problem Question: Rashad started The 780km drive from Sault st. Marie to Ottawa at 09:00. His average speed was 100km/h. Two hours later Tyson left Ottawa for Sault St. Marie. He drove at 80km/h on the same highway. How far from Ottawa, and what time of
asked by M. 
Science
When did Gregor Mendel publish his results ? When did people notice how important his work was ?
asked by Anabelle 
chemistry
define a chemical bond
asked by angelena 
CALC 2
a. Consider the following limit as a fact: lim n> infinity ((n!)^1/n)/n = 1/e Use this limit to study the convergence of this series using the root test. Sum of infinity and n=1 of ((3^n)n!)/n^n b. Use the ratio or the root test to determine the
asked by Bae 
math
Two stations, A and B, are located six miles apart on a railroad. The rates of cartage of coal are 50 cents per ton per mile from A and 75 cents per ton per mile from B. At a certain consumer's home, located on the railroad between A and B, the cost for
asked by thomas 
Calculus II
using integration by partial fraction, prove that pi + integral from 0 to 1 of x^4(1x)^4/1+x^2 = 22/7
asked by chelsea 
English
1. He is too full. 2. He is overeating. 3. He is overeaten. (Are the three the same in meaning?)
asked by rfvv 
calculus
How to solve 2.5e^t cos2t=0?
asked by Gordon 
Math
A triangular prism has a volume of 92 in.³ if all dimensions are multiplied by 1.6 what is the new volume?
asked by Holly 
Calc 2
Use the ratio or the root test to determine the convergence of the series: Sum of infinity and n=1 of arctan(e^n), Sum of infinity and k=1 of sqroot(3^k)/(2^k)
asked by Bae 
chemistry
a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?
asked by nina 
Chemistry
I don't really understand these questions and their processes. And I am a bit iffy on redox reactions. For problem 3, can you show a step by step process how to do the problem? Problem 2, I do not fully understand how to do it at all. How would you know
asked by Mika 
chemistry
PLS HELP ME AND THANK YOU:) What is the molarity if 2.18 grams of CO(NO3)2.6H2O dissolved in 50.00ml of solution?
asked by may 
statistics
11.68 is what percent of 141
asked by Anonymous 
science heredity
there are about 100,000 genes in each cell. Why would it be important scientists to identify what every one of these genes does? I put Genes will describe a trait of a person, example, it will determine if a person will be small or tall; blue or brown eyes
asked by sara 
chemistry
What mass of N2O occupies a volume of 0.500 L at 0 degrees Celsius and 101.325 kPa?
asked by stella 
History
What factors gave rise to the youth counterculture of the 1960's?
asked by Victoria 
math
.An angle is 10° more than the measure of its complement. Find the number of degrees in each angle.The angles measure _ degrees.
asked by justin 
ashford
Football is the best sport. The athletes are amazing, and it is extremely complex. (Points : 1) is it deductive or inductive
asked by sallie 
geometrey
whats a circle?
asked by sar 
algebra 2
What is the sum of the first 60 positive integers?
asked by kathy 
physics
A special train is traveling down a long, straight track with a constant acceleration of 9m/s^2 in the forward direction. The train is located on Mars where the acceleration due to gravity is 9 m/s^2. If a passenger drops a ball and measures the
asked by anonymous 
Physics
Consider two masses that hang from an overhead beam. The first mass of 86.4 kg is attached to the beam using an ideal rope. The second mass of 20.8 kg is attached to the first mass with an ideal rope and hangs directly under the first mass. (a) Find the
asked by name 
Fractions
Eight equal size pieces of cake 6 people ate all the pieces how could they have the same amount of cake
asked by Anonymous 
math
Who am I? I have 2 in the ten thousands and the units place. The rest of my digits are 0.
asked by Arnesh 
Math
The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one
asked by Vanessa 
algebra 2
sigma upper limit 28 algebraic expression (8i13) lower limit 1 index=i
asked by kathy 
Geometry
what is the formula of a base area for a right trapezoidal prism?
asked by ali 
chemistry
what is the number of moles of nonvolatile nonelectrolyte dissolved in 3.5 kg of water when the solution boils at 101.86 degrees C
asked by anonymous 
no one's here to help us!!! .
help us!!! plzz btw this is not a question :P
asked by anonymous 
CHEMISTRY
If an explanation for correct answer could be provided, that would be great! Which equilibrium constant indicates that the reaction will produce mostly products? a. Kc = 3.46x106 b. Kc = 1.96x10+7 c. Kc = 0.319 d. Kc = 0.37
asked by Chemistry 
CHEMISTRY
Method for getting correct answer for this? Thank you! For the reaction A ↔ 2B K = 3.80x107 , if one started with 0.154 M A approximately how much A and B would there be after equilibrium had been established? a. very little A, 0.154 M B b. 0.126 M A;
asked by Chemistry 
Math
Volume of a cylinder is 15 cubic inches. If all the dimensions are multiplied by 2.7 what is the new volume?
asked by Karley 
Stats
the average placement test score of a sample of 64 students out of 1000 registered at a community college is 70 with a standard deviation of 15. Construct a confidence interval with a 5% chance of error.
asked by D 
CHP
how to calculate FTE allowing 15% adjustment fact.
asked by suzanne 
Math
The volume of the cylinder is 15 cubic inches. If all the dimensions are multiplied by 2.7 what is the new volume? My Answer 295.245
asked by Holly 
Chemistry
Why organic compound are volatile in nature
asked by M.ayyaz 
Science
How many mole of magnesium atoms are present in 0.50g of manesium (mg=24)
asked by Moses 
Science
Please help !! Look at my other question on science plzzzzzzzzzzzz
asked by Anabelle