Questions Asked on
March 11, 2012

Chemistry Help! Thank you :)
Assuming the final solution will be diluted to 1.00 , how much more should you add to achieve the desired pH? Information: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.80. You have in front of you: 100 ml of
asked by Ashley 
Programming
Write a program (pseudocode) that would calculate and display the results for the multiplication table for values ranging from 1 to 100. This what I have so far: Declare X, Y, Z As Integer Write “10 x 10 Multiplication Table” For (X = 1; X
asked by Amanda 
physics
A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the
asked by Mel 
calculus
Which of the following are antiderivatives of f(x)=sinxcosx? I f(x)=(sin^2* x)/2 II f(x)=(cos^2* x)/2 III f(x)=cos(2x)/4
asked by Tiffany 
Chemistry
After a Melting point determination, why can't you reuse the solidified substance and capllary tube for subsequent determination?
asked by Nuke 
chemistry
Ammonium bisulfide, NH2HS, forms ammonia NH3, and hydrogen sulfide, H2S through the reaction: NH4HS (s) NH3(g) + H2S(g) Kp value of .120 at 25C in a 5L flask is charged with .300g of H2S at 25C. A) What are the partial pressures of NH3 and H2S at
asked by maura 
English
Which one of the following sentences demonstrates correct subjectverb agreement? A. A number of my friends have bought new cars recently B.Epena thinks five dollars are a lot of money C.Roberts friend Steve ,as well as his wife are going to the fair D.
asked by Brenna 
organic chem
when din butyl ether and hot concentrated naoh react> nor rxn .. why? when di n butyl ether reacts with na metal> nor reaction .. why?
asked by lou 
ALGEBRA
An alligators tail length,T varies directly from its body length B. So an alligator with a body length of 7.7 feet has a tail length of 6.3 feet. What is the tail length of an alligator whose body length is 4.4 feet? Thanks ahead of time.
asked by TOTALLY lost 
managerial economics
4. The equation for a demand curve has been estimated to be Q = 100 – 10P + 0.5Y where Q is quantity, P is price, and Y is income. Assume that P = 7 and Y = 50. a. Interpret the equation. b. What is price elasticity at P = 7 and arc elasticity at the
asked by Anonymous 
accounting URGENT HELP DUE IN 1HR
(a) Fill in the missing amounts. (If answer is zero, please enter 0. Do not leave any fields blank.) Account Titles Trial Balance Adjusted Trial Balance Dr. Cr. Dr. Cr. Accounts Receivable 34,000 Prepaid Insurance 26,000 20,000 Supplies 7,000 Accumulated
asked by will 
Physics
a 1.0 Nweight is hanging at rest as shown. In each case, write in the magnitude of the unknown force. a) chain with a weight of 2.5 N has a 1.0 N hanging weight b) chain with a weight of .5 N has a 1.0 N hanging weight c) stretched elastic band with
asked by Brandon 
business math
Pete's warehouse has a market value of $5,000,000, the property in Pete's area is assessed at 40%of the market value. the tax rate is $105.10 per $1,000 of assessed value. what is Pete's property tax?
asked by shawn 
communication
Which of the following is NOT true of nonverbal communication? A.It is continuous. B.It uses a single channel. C.It usually can be controlled. D. It is unstructured and follows few rules. I think it is A. But not to sure
asked by Anonymous 
trig
City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
asked by Janet 
English
I have completed this test and I missed 4 questions. My answers are submitted in blue, can you tell me which questions are wrong. 1.Having studied small engine repair in night school, fixing the lawn mower was easy. dangling modifier 2. When I asked for a
asked by Robin Busch 
physics
The current indoor world record time in the 200m race is 19.92 s, held by Frank Fredericks of Namibia (1996), while the indoor record time in the onemile race is 228.5 s, held by Hicham El Guerrouj of Morroco (1997). (a) Find the mean speed in meters per
asked by Darcie 
physics
A ball with a horizontal speed of 1.25 {\rm m/s} rolls off a bench 1.00 {\rm m} above the floor. How long will it take the ball to hit the floor? How far from a point on the floor directly below the edge of the bench will the ball land?
asked by linda 
Math
1. You (safely) bungee jump from a 200feet tall bridge in your town. Your distance above the water's surface depends on the time since you jumped. Sketch a reasonable graph.
asked by Claries 
Geometry
Troy is thinking of a shape. He says that it has four sides and that no sides have equal length. He also says that no sides are parallel. What is the best name for his shape?
asked by Anonymous 
Physics 111 PLEASE HELP ASAP
A 37.5kg child swings in a swing supported by two chains, each 3.05 m long. The tension in each chain at the lowest point is 433 N. the force of the seat on the child is 498.5 N. b)Find the force exerted by the seat on the child at the lowest point.
asked by lily 
Physics
Three huskies are pulling a dog sled. The mass of the driver, sled and supplies is 145 kg. Snowy is pulling with a force of 83 N and 15.5degrees to the left of forward. Buster is pulling with a force of 75 N at 9degrees right of forward and Prince is
asked by Danielle 
chemistry help!!!!!
Consider the following reaction: Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm, and that the initial partial pressure of A is 0.0
asked by student 
calculus
2. Let R be the region in the first quadrant bounded by the graphs of (x^2/9)+(y^2/81)=1 and 3x+y=9 . a. Set up but do not evaluate an integral representing the area of R. Express the integrand as a function of a single variable. b. Set up but do not
asked by Taeyeon 
economic
Does a dollar given to a rich person raise the rich person’s total utility more than a dollar given to a poor person raises the poor person’s total utility?
asked by snizhanna 
PHYSICS 111
A 37.5kg child swings in a swing supported by two chains, each 3.05 m long. The tension in each chain at the lowest point is 433 N. the force of the seat on the child is 498.5 N. b)Find the force exerted by the seat on the child at the lowest point.
asked by lily 
Chemistry
Calculate the amount of Na2HPO4*7H2O in grams needed to make 50 mL of a 0.40 M solution. I think this is dealing with molarity but i cant figure it all out for some reason? Help would be greatly appreciated.
asked by Bruce 
Maths
Y is 60km away from X on a bearing of 135 degree. Z is 80km away from X on a bearing of 225 degree. (a) find the distance of Z fromY? (b) find the bearing of Z from y?
asked by Ahmed saleh 
physics
A physics student pulls a block of mass m = 23 kg up an incline at a slow constant velocity for a distance of d = 4 m. The incline makes an angle q = 25° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is
asked by Mel 
physics
A 1.1 pebble is stuck in a tread of a 0.85 diameter automobile tire, held in place by static friction that can be at most 3.9 . The car starts from rest and gradually accelerates on a straight road.How fast is the car moving when the pebble flies out of
asked by Anonymous 
microeconomics
This week you have gone to two parties. Assume the total utility you gained from these parties is 100utils. Then you go to a third party, and your total utility rises to 110utils. What is the marginal utility of the third party attended per week? Given the
asked by snizhanna 
physics
A cyclist starts from point X and rides 3 km due west to point Y. At Y he changes direction and rides 5km northwest to point Z. (a) hw far is he from the starting point, correct to the nearest km? Find the bearing of the Z frm X to the nearest degree?
asked by Anonymous 
microeconomics
Do you agree with the following statement? “ If you like tacos you should consume as many as you can”.
asked by snizhanna 
microeconomic
Suppose you consume three pounds of beef and five pounds of pork per month. The price of beef is $ 1.50 per pound, and pork is $ 2.00 per pound. Assuming you have studied economics and achieved consumer equilibrium, what is the ratio of the marginal
asked by snizhanna 
Chemistry
How do I calculate the amount of grams of Na2HPO4 and NaH2PO4 to prepare 200 mL of a buffer with an 8.25 pH so the sum of the concentrations of HPO4 and H2PO4 ions is 0.5 M? Does this involve writing a Ka expression and equilibrium? I am confused and
asked by Carrie 
physics
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 1.7 s apart. How far away did the impact occur?
asked by me 
Trig Help
Prove the following: [1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)] =[sinx+sin^2x]/[sinx+1] =[sinx+(1cos^2x)]/[sinx+1] =??? This is where I'm stuck. Can someone help me. Please check what I got is
asked by Anonymous 
Chemistry(Can someone please answer!!)
The decomposition of hydrogen peroxide in the presence of potassium iodide is believed to occur by the following mechanism: step 1 slow: H2O2 + I^ = H2O + OI^ step 2 fast: H2O2 + OI^ = H2O + O2 + I^ 1) What is the equation for the overall reaction? Use
asked by Hannah 
physics
A small block of mass m = 1.1 kg slides, without friction, along the looptheloop track shown. The block starts from the point P a distance h = 56.0 m above the bottom of the loop of radius R = 17.0 m. What is the kinetic energy of the mass at the point A
asked by Katie 
business math
Mel's Furniture received an invoice dated September 27 for five bedroom sets at $3,000 each.The invoice indicated av trade discount of 5/8/3. The seller of the furniture prepaid the freight of $200. Terms were 2/10 EOM.Assuming Mel pays on november 2,what
asked by shawn 
Physical science
A copper penny has a mass of of 3gram. The atomic number of copper is 29 and the atomic mass is 63,5gram/mol.what is the total charge of all electrons in the penny?
asked by Lucia 
Math PLEASE HELP ME!!
Mike receives a 9.8% raise. He currently earns $1,789.46 per month. Estimate the amount by which this monthly earnings will increase.
asked by Madelyn Santiago 
physics
A small object with mass 4.05 kg moves counterclockwise with constant speed 1.70 rad/s in a circle of radius 3.15 m centered at the origin. It starts at the point with position vector 3.15 m. Then it undergoes an angular displacement of 9.10 rad. (a) What
asked by Maria 
math
Jodie bicycles 6 km/h faster than Javier. In the same time it takes Javier to bicycle 42km, Jodie can bicycle 60 km. How fast is each bicyclist traveling?
asked by Terry 
Chemistry
An example of a solution that exhibits a positive deviation from Raoult’s Law (total pressure is greater than expected) is a solution of acetone (CH3COCH3) and carbon disulfide (CS2). a) Draw Lewis structures for these molecules. Explain the deviation
asked by Laffy Taffy 
organic chemistry
How many steric interactions are there in CIS1,3dimethylcyclohexane? Which groups participate in the interactions and whats the total number of interactions of this type??? Also, if i have the steric strain value for one 1,3 HCH3 interaction, how can i
asked by Alex 
microeconomics
Suppose your marginal utility for meals at the campus cafeteria this week has fallen to zero. Explain what has happened to your total utility curve derived from consuming these meals. Now explain what will happen to total utility if you eat more meals at
asked by snizhanna 
Calculus; Limits
The percentage of research articles in a prominent journal written by researchers in the United States can be modeled by A(t) = 26 + (36/1 + 0.8(0.8)^−t'), where t is time in years (t = 0 represents 1983). Numerically estimate lim as t→+infinity A(t).
asked by James 
chemistry
How do you prepare a 0.4 M solution of sulfuric acid in water starting with concentrated sulfuric acid (18 M) and water?
asked by Amanda 
physics
A small block of mass m = 1.1 kg slides, without friction, along the looptheloop track shown. The block starts from the point P a distance h = 56.0 m above the bottom of the loop of radius R = 17.0 m. What is the kinetic energy of the mass at the point A
asked by Katie 
physics
The National Transportation Safety Board is testing the crashworthiness of a new car. The 1.87 103 kg vehicle, moving at 11.3 m/s, is allowed to collide with a bridge abutment, being brought to rest in a time of 0.463 s. What force, assumed constant, acted
asked by Angelica 
Chemistry
The decomposition of hydrogen peroxide in the presence of potassium iodide is believed to occur by the following mechanism: step 1 slow: H2O2 + I^ = H2O + OI^ step 2 fast: H2O2 + OI^ = H2O + O2 + I^ 1) What is the equation for the overall reaction? Use
asked by Hannah 
physics
A 1.1 kg hammer slams down on a nail at 5.0 m/s and bounces back at 1.0 m/s. If the impact lasts 1.0 ms, what average force is exerted on the nail?
asked by Joe 
Physics
Dry saturated steam at 100'C is passed into 250gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content of the calorimeter has increased by 10gm due to condensed
asked by O.E Olaleye 
math
sasha has 5 red pens and 4 blue pens in her bag. she will randomly pick one pen, keep it, and then randomly pick a second pen. What is the probability that she will pick two blue pens
asked by geoffrey 
trig
A ship sails 40 miles SOUTH and 15 miles EAST. Find the bearing from where it began? HELP.
asked by Chloee 
Algebra
Two companies sell software products. In 2010. Company 1 had total sales of $17.2 million. Its marketing department projects that sales will increase by $1.5 million per year for the next several years. Company 2 had total sales of $9.6 million for
asked by kim 
chemistry
Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 102 Ka (HX) = 7.3 x 108 Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 9 x 105 Ka (HX) = 5.3 x 1011
asked by Anonymous 
Chemistry
How do I calculate the amount of grams of Na2HPO4 and NaH2PO4 to prepare 200 mL of a buffer with an 8.25 pH so the sum of the concentrations of HPO4 and H2PO4 ions is 0.5 M? Does this involve writing a Ka expression and equilibrium? I am confused and
asked by Carrie 
calculus
the productivity of a country in western Europe is given by the function f(x,y)=40x^4/5 y^1/5 when x units of labor and y units of capital are used. a)What is the marginal productivity of labor and the marginal productivity of capital when the amounts
asked by yessi 
CALC
f(x)=x^33x^23x8/(3x^24x6) Find the equation of the nonvertical asymptote. What is the smallest value of x at which f(x) intersects its nonvertical asymptote? the non vertical asymptote is 1/3x + 13/9 i found that using synthetic division and i
asked by UCI 
physics
an electric heating element is conneceted to a 110V circuit and a current of 3.2 a is flowing through the element. How much energy is used up during a period of 5 hours by the element?
asked by kimberly 
Math
Suppose that z is inversely proportional to y and that z=12 when y=16. Write an equation that expresses z in terms of y.
asked by Anastasia 
calculus
Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false. a if f is a function of x and y and a is a real number, then f(ax, ay)= af(x,y). b if fx(a,b) < 0, then f is
asked by help please. 
algebra
a ladder is leaning up against a wall. The ladder is 8 feet long and is 3 feet away from the base of the wall. find the angle the ladder makes with the wall.
asked by abby 
physics
A 50.2 kg child slides down a water slide with a velocity of 1.1 m/sec at the top. At the bottom of the slide, she is moving horizontally, 1.5 meters above the water. She splashes into the water 2.5 meters to the right of the bottom of the slide. a)
asked by Mel 
physics
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.20 after liftoff, the rocket clears the top of its launch platform, 68 above the ground. After an additional 4.85 , it is 1.50 above the ground.Calculate the magnitude
asked by Muhammad 
Chemistry
For the ionization of phenylacetic acid, Hc8H7O2 +H20 C8H7O2 (aq) + H3o+ (aq) Ka + 4.9x10^5 What is the concentration of the phenylacetic ion, C8H702, in 0.186 M phenylacetic acid, HC8H702? Please explain the steps as well..thank you so much
asked by Ken 
physics
A constant force of 40.7 N, directed at 29.9° from horizontal, pulls a mass of 13.7 kg horizontally a distance of 2.93 m. Calculate the work done by the force.
asked by Katie 
physics
The rope of a swing is 3.2 m long. Calculate the angle from the vertical at which a 95kg man must begin to swing in order to have the same kinetic energy at the bottom as a 1500kg car moving at 1.07 m/s (2.39 mi/hr).
asked by Katie 
chemistry
How do you prepare a 0.4 M solution of sulfuric acid in water starting with concentrated sulfuric acid (18 M) and water?
asked by Amanda 
Physics
During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 283 N on the wire. The left section of the wire makes an angle of 11.8°
asked by Natasha 
World geography
Imagine you are a farmer in an area that has monsoons. What would you need to do to adjust your crops or your farming techniques to account for this massive rainfall? How can you protect your crops during the dry winter months?
asked by Pam 
physics
Starting from rest at t = 0 s, a wheel undergoes a constant angular acceleration. When t = 1.6 s, the angular velocity of the wheel is 5.5 rad/s. The acceleration continues until t = 17 s, when the acceleration abruptly changes to 0 rad/s2. Through what
asked by Katie 
Calculus
I have no idea what to do with this problem. Please help me found the basic formula. When Apollo 15 astronaut David Scott dropped a hammer and a feather on the moon to demonstrate that in a vacuum all bodies fall with the same constant acceleration, he
asked by Mathew 
U.S. History
Explain the Civil rights Movement in the US
asked by [Jamby] 
Physics
HELP! A tennis ball is attached to a .8m long string whirled around in a circle with a constant frequency of 1.2 Hz. What is the linear(tangential) velocity of the tennis ball?
asked by Phil 
college math
1). Sum of three numbers is 45. One number is five more than the second number.It is also twice the third.Find the numbers. 2).Perimeter of quadrilateral is 52in. Longest side is is three times as long as the shortest side. The other two sides are equally
asked by micah 
physics
An object of mass M = 4 kg slides from rest a distance d = 2 m down a frictionless inclined plane where it encounters a spring. It compresses the spring a distance D = 1.2 m before stopping. The inclined plane makes an angle q = 20° with the horizontal.
asked by Mel 
Chemistry
Determine the atomic weight of X in the following compounds a)8g XH4 occupy 44.8L volume at 237C and 380 mmHg pressure b)1.92g of X3 occupis a volume of 574 ml at 77C and 2 atm c)A O.326 gram of gas,C3X4 has a volume of 250 ml at100C and 76 cmHg d)A 3.12
asked by faisal 
First Year Chemistry
I have a question that I don't understand from my first year chem lab. Calculate the minimum volume of water needed to decompose all the excess Ethanoic Anhydride. Recall: 1.0g of H2O = 1.0 ml of water. How do I go about doing this?
asked by Joshua 
math
Each cube below is made up of smaller cubes, but the large cubes are not solid. They had tunnels through them. • The first cube originally had 27 small cubes, but the tunnel removed 3 cubes. • The second cube originally had 64 small cubes, but two
asked by Neel 
trig
City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
asked by Janet 
science
How do I find oxidation numbers of certain elements in compounds? I'm really confused so very simple terms would be appreciated. EX: What is the oxidation number of sodium in NaOH AND What is the oxidation number of Iron in FeCl3??
asked by Viola 
AP Chem
Calculate the correct volumes of the 0.1M acetic acid solution and the 0.1M sodium acetate solution needed to make 50mL of a buffer solution with a pH vaule of 5.00. (Ka = 1.8x10^5)
asked by Keighley 
Calculus
AM having problems understanding what equations to use for this word problem. Please help. A rectangular storage container with an open top is to have a volume of 48ft^3. The length of its base is twice the width. Material for the base costs $8 per square
asked by Gaby 
math
What inverse operation is needed for the first step in solving the equation 12+5x=22? a. addition b. subtraction c> multiplication d. division
asked by peter 
calculus
2. Sketch the region in the first quadrant that is bounded by the graphs of y=x^3, y=4X , and 2x+y3=0 that lies below both straight lines. Find the area of this region. I can see the graph in front of me. which function do I subtract from which?
asked by Taeyeon 
Finance
Edwards Construction currently has debt outstandind with a market value of $70,000 and a cost of 8%. The company has EBIT of $5,600 that is expected to continue in perpetuity. Assume there are no taxes. What is the value of the company's equity? What is
asked by Wilbert 
Management
Pat,a manager at State University, is deciding how to set up a procedure for registering online that gives students fair access to courses. Pat is engaged in the (a) utilitarian, (b) individual, (c) moralrights, or (d) justice approach. I chose (b)
asked by Carol 
math
The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in metres, L, through the equation T=2π√ L/9.8 Write this equation in function notation.
asked by james 
physics
Consider a system of N identical particles. Each particle has two energy levels: a ground state with energy 0, and an upper level with energy . The upper level is fourfold degenerate (i.e., there are four excited states with the same energy ). (a) Write
asked by martin 
scienceHelp!
What does it mean in the scientific method that the second step is research? I need to write up the 5 steps of scientific method explaining my experimenthow do i do research?
asked by Jonathan 
PreCalculus
A town has a population which is growing linearly. In 1970 its population was 36,000 while in 1985 its population was 63,000. Find a formula for its population P(t), where t=0 corresponds to the year 1970.
asked by L.Bianchessi 
physics
John Johnson set a world record for the "100.0" m run with a time of 9.86 s. If, after crossing the finish line, John walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?
asked by rachel 
physics
Traveling at a speed of 18.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.690. What is the speed of the automobile after 1.41 s have elapsed?
asked by Natasha 
Chemistry
Consider a solution containing 0.150 M Ba(OH)2. Calulate the pH.
asked by Anonymous 
math problems
If you cut a pizza into 45 degree wedges meeting at a point other than the center and two people eat alternative slices, do they each get the same amount?
asked by juliann 
Physics
A parallelplate capacitor has a capacitance of 2.1 µF with air between the plates. The capacitor is connected to a 24 V battery and charged. The battery is then removed. When a dielectric is placed between the plates, a potential difference of 2.8 V is
asked by Tor 
physics
Two identical planets, each of mass M, have their centers a distance D apart. Halfway between them, at gravitational equilibrium, lies a satellite of mass m. The satellite is then displaced a small distance and released, after which it undergoes SHM. a) In
asked by sand 
physics
John Johnson set a world record for the "100.0" m run with a time of 9.86 s. If, after crossing the finish line, John walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?
asked by rachel 
chemistry
If you have 2 moles of glucose in 8 liters of solution, what is the molarfity of this sol;ution?
asked by idk 
Chemistry
How would you analyze a solution known to contain Hg22+ and Cu2+?
asked by Kelly 
principles of business
Assignment Choose a company that has experienced negative press recently about its financial dealings. Provide a financial summary of your selected company’s financial health, including a timeline of possible financial gains and losses. Define 2
asked by sarah 
business
Assignment Choose a company that has experienced negative press recently about its financial dealings. Provide a financial summary of your selected company’s financial health, including a timeline of possible financial gains and losses. Define 2
asked by sarah 
calculus: related rates
hello, please help me. A cylindrical can is being heated with its height increasing at the rate of 0.01cm/min and its diameter at the rate of 0.005cm/min. At what rate is the volume increasing when the can has a diameter of 15cm and a height of 20cm. this
asked by mary 
math
sasha has 5 red pens and 4 blue pens in her bag. she will randomly pick one pen, keep it, and then randomly pick a second pen. What is the probability that she will pick two blue pens
asked by geoffrey 
business math
Jeff Sellers bought 200 shares of radio shack stock at $22.35. eight months later,he sold the stock at $31.76.assuming a 2% commission charge, what is the bottom line for Jeff?
asked by shawn 
Chemistry
How many mL of 5.5 M KOH are needed to prepare 300 mL of 1.2 M NaOH?
asked by Amanda 
Physics
The electric field between the plates of a paperseparated (K = 3.75) capacitor is 9.01X10^4 V/m. The plates are 1.95 mm apart and the charge on each plate is 0.775 µC. I figured out that the capacitance is 4.4e9F but I need help finding the area.
asked by Millie 
chemistry
3. Find the empirical formula for a compound that consists of aluminum and chlorine in which the aluminum is 20.2 % by mass. 4. A sample contains 71.65% CL, 24.27% C nad 4.07% H. the molecular weight is known to be 98.96 g/mol. What are the empirical and
asked by jhong 
physics
A 190kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 32.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.876, and the log has an
asked by Natasha 
Physicsis this correct?
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy 
Chemistry
Boron Phosphide, BP, is a semiconductor, and a hard, abrasion resistant material. It is made by reacting Boron tribromide and phosphorus tribromide in a hydrogen atmosphere at high temperature (>750 degrees C) (a) Write a Balanced chemical equation for the
asked by Laffy Taffy 
Math(Can someone please answer!!)
n [1.70E2] = ln(0.144)  (k s1)(3609 s) Solve for k. I have a TI30 calculator. Am I suppose to press just the ln button or do I have to press 2nd and then ln??
asked by Hannah 
Chemistry
Draw a titration curce of 25.0 mL of 0.100 M aluminum ion (pKa=5.14) with 0.100 M NaOH. I am familiar with the process of drawing titration curves, however, I have never done an example with an ion (aluminum ion) rather than an actual acid. If anyone can
asked by Anna 
Chemistry
A gas occupied 870 ml under a pressure of 720 mmHg at a temperature of 17C ,the next day it was measured under a pressure 0f 750 mmHg at a temperature of 21C.what volume did the gas occupy under these condition
asked by faisal 
math
Xenia wants to stuff a cubeshaped footstool that measures 10.25 inches on all edges. What is a good estimate of the number of cubic inches of foam peanuts that she will need? a. just over 1,331 cubic inches b. just over 1,000 cubic inches c. just over 30
asked by peter 
Biology Question
I have 2 problems/questions I am unsure of the answers. The first one is "how would you demonstrate the Valsalve maneuver using the model lung?" and 2. If a woman is breathing rapidly and deeply after exercise, would TLC, RV, TV, IRV, and ERV stay the
asked by Mary 
US History
Why did many progressives of both major parties saw American entry into World War I as a peerless opportunity? Many Progressives during the First World War, Republican and Democrat alike, realized something of great importance to furthering their goals:
asked by Jason 
Math
x^36x^2+17x Find the point of inflection of the graph of the function? x,y ( , ) I tried to solve for it by getting the 1st derivative and setting it equal to 0 but i get sqrt,so am confused!
asked by Angelina 
chemistry
solve under rate of reaction: 1)Mno4^ + Fe2^+=Mn2^+ + Fe3^+
asked by faith 
English  please help i had posted 3 times and no
please can you make correction in my short story. i am very bad at grammar and even my parents does not khnow english well. can you proof reed my short story. LoveHate story “Happy birthday Khushi”, her family said as they came to her room at
asked by Annie 
Environmental Science
David Hassenzahl discusses the relative risks of eating peanut butter contaminated with aflatoxin and apple juice contaminated with UDMH, a degradation product of Alar, in the Power Point presentation in the Week Five, Module 5 Conference. The following
asked by brianna love 
English
Could you please check these sentences, too? 1)Winston lives in Victory Mansions, an apartment (?) for Outer Party members in what used to be London. He also rents a small apartment in the Proles area with Julia for the purpose of meeting her. 2)Big
asked by Henry 
math
Why f(x) and g(x) do not cut the xaxis at the same number of points. Why h(x) does not cut the xaxis. Why do all cut the yaxis at one point only.
asked by Kwena 
chemistry
what has the strongest bond? a) C2H6, C2H4, C2H2 b) Cl2, O2, N2 c) H2, Cl2
asked by hadley 
chemistry
solve under rate of reaction: 1)Mno4^ + Fe2^+=Mn2^+ + Fe3^+
asked by faith 
Chemistry
An ideal gas originally at 0.8 atm and 77C was allowed to expand untel its final volume ,pressure and temperature were 600 ml ,0.4 atm and 27C.what was the initial volume
asked by faisal 
calculus
the monthly payment that amortizes a loan of A dollars in t yr when the interest rate is r per year, compounded monthly, is given by P=f(A,r,t) = Ar/ 12[1(1+ r/12)^12t ] Find the monthly payment for a home mortgage of 300,000 that will be amortized over
asked by yessi 
Calc
f(x)=x^33x^23x8/(3x^24x6) Find the equation of the nonvertical asymptote. What is the smallest value of x at which f(x) intersects its nonvertical asymptote?
asked by Elli 
calculus
Find the area of the region bounded by the graph of y^3=x^3 and the chord joining the points (1, 1) and (8,
asked by Taeyeon 
calculus
Find the area of the region bounded by the graph of y^3=x^3 and the chord joining the points (1, 1) and (8,4)
asked by Tiffany 
physics
An automobile tire has a radius of 0.455 m, and its center moves forward with a linear speed of v = 15.7 m/s. Determine the angular speed of the wheel.
asked by Katie 
chemistry
If you have 2 moles of glucose in 8 liters of solution, what is the molarfity of this solution?
asked by idk 
Chemistry
How many mL of concentrated HCl (aq) (36.0% HCl by mass, d=1.18 g/mL are required to produce 5.00 L of a solution with a pH =2.10?
asked by Maddie10 
trig
City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
asked by Janet 
calculus
a)find the first partial derivatives of f(x y)= x √1+y^2 b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)
asked by maria 
math
Image that the last U.S. census indicated that there is a major shift in our population where the northwest states are decreasing in population and the southwest states are increasing in population by more than 3 million. Discuss how this might affect the
asked by d's 
Biology
can anyone send me a website link to a Monocot and Dicot Leaf and Stem cells under a microscope? (not cross section) Also, do they both have a cell nucleus?
asked by CrissyXD 
ALG WORD PROBLEM
The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 9 amperes when the resistance is 940 ohms. What is the current when the resistance is 580 ohms? Thank you yet again. Almost through with this
asked by TOTALLY lost 
PHI103
If the word "should" appears in a sentence, that sentence will always involve an ethical claim. True False To tell you the truth i really do not know this but maybe it could be true
asked by Ashley 
chemistry
solve under rate of reaction: 1)Mno4^ + Fe2^+=Mn2^+ + Fe3^+
asked by faith 
biology
If you have the option to save from extinction either the carnivores oor the primary produccers in an ecosystem which whould you protect? why
asked by Rose 
chemistry
a 12.0g sample of carbohydrate contain 4.50g of carbon, 3.25g of oxygen, and some hydrogen. Determine the percent by mass of hydrogen in your product
asked by jhong 
Chemistry
What is another way to test for hydrogen and oxygen; other than the burning splint test? My teacher gave us the hint of Universal Indicator
asked by Julie 
Business
Is it possible for companies both to maximize financial value for shareholders and to act responsibly in the communities in which they operate, to treat their employees, customers, and suppliers well, and to engage in activities that are good for the
asked by Chase 
math
Mariah is planting a rectangular rose garden. In the center of the garden, she puts a smaller retangular patch of grass. The grass is 2 ft by 3 ft. What is the area of the rose garden?
asked by Austin 
calc
f(x)=[5x^34x^28x+9]/[2x^21x3] Find the equation of the nonvertical asymptote. y = Does f(x) intersect its nonvertical asymptote? (yes or no) What is the smallest value of x at which f(x) intersects its nonvertical asymptote? ( Enter No in the
asked by jasmineT 
maths
how to construct a parallelogram in which diagonal ac=7.2cm,bd=5cm and also angle between the diagonals is 30 degree?
asked by ashwini 
math
can you check these write the decimal as a percent for 0.5 i wrote: 500% write the fration as a percent round to the nearest tenth should this be; 576%
asked by marko 
Lab MathOsmolarity
I know this is easy but it's been a while for me. Calculate the osmolarity of the following: 25mM CaCl2 100mg/dl Glucose 0.20 M MgSo4 which is 50% dissociated Thank you!!!
asked by Morgan M 
Lost in the pits of ALG
I have 5 problems I seem to not be able to comprehend out of 150 that are due Tuesday. I have tried every which way to solve them on my own..please help. Find the variation constant in which y varies inversely as x, and the following condition exists. Y=30
asked by TOTALLY lost 
quantitative decision making
james and john invested ¥700 and ¥300 respectively, at the end the of one year, they divided their profits such that a third of the profit is divided equally for the efforts they have put into the business and the remaining amount of profit is divided in
asked by philip 
Algebra
The life expectancies for men and women in the United States can be approximated by the following formulas: Women: E= 0.126t+76.74 Men: E=0.169t+69.11 where E represents the length of life in years and t represents the year of birth,measured as number of
asked by kim 
Chemistry
My chemistry teacher said that the pCO2 value increases during hypoventilation. Why is that? If hypoventilation causes shortness of breath, would that not increase the CO2 concentration, therefore decreasing pCO2? Because if you think about pH, a larger H
asked by Bobby 
CHEMISTRY
How many grams of dry need to be added to 1.90 of a 0.800 solution of ammonia, , to prepare a buffer solution that has a of 9.00? Kb for ammonia is 1.8*10^5.
asked by Abinaya 
Math
Express the following number in scientific notation: 23^941 How do i get the answer for this? on my graphing calc, i get an error overflow messasge when i try to compute it. THANK YOU!!!!!
asked by Sandy 
physics
An electron is a subatomic particle (m = 9.11 x 1031 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of
asked by Natasha 
HCS/490
Identify two key health carerelated challenges to this population such as increaes in health care costs, increases in presvription drug costs or the need for inhome medical care,
asked by Inez Williams 
algebra
The Environmental Protection Agency (EPA) monitors air quality in U.S. cities. The function f gives the annual number of days with unhealthy air quality in Los Angeles, California, for selected years. X: 1995 1997 1999 2000 2003 f(x):113 60 56 87 88 (a)
asked by mike 
Business
One of your relatives has come into a significant amount of money recently, and wants to invest $100,000 dollars in a stock which is listed either on the New York Stock Exchange (NYSE) or the NASDAQ. This relative has asked you to recommend three stocks,
asked by Chase 
chemistry
Phenylalanyl aspartate, Nutrasweet, is an artificial sweetener used in many diet drinks. If a solution prepared by dissolving 6.068 mg of Nutrasweet in 125 milliliters of water exhibited an osmotic pressure at 25ºC of 3.23 mm Hg, what is the molar mass of
asked by Laffy Taffy 
Trigonometry
Your altitude is 40,000 feet and you detect a target at a depression angle of 6 degrees and a range of 20 miles. what is the altitude of the target? Draw a picture.
asked by Diana 
calc
f(x)=[5x^34x^28x+9]/[2x^21x3] Find the equation of the nonvertical asymptote. y = Does f(x) intersect its nonvertical asymptote? (yes or no) What is the smallest value of x at which f(x) intersects its nonvertical asymptote? ( Enter No in the
asked by jasmineT 
maths
Given the equation of an ellipse as 5x^2+3y^215=0 find the centre and foci
asked by salome 
English
I really need to know if everything is correct in my last post. I hope someone can check it. Thank you very much, Damon. Here are a few more sentences I need to check.In particular, a need to know which word choices are possible. 1) O’Brien even
asked by Henry 
Spanish
I had to answer the questions in the negative please check 1.Hay alguien en la puerta? No, no hay nadie en la puerta. 2. Hay algo en la mesa? No, no hay nada en la mesa.
asked by Tiffany 
english
is this a good thesis for and english research paper? With so many illegal drugs and alcohol cigarettes seem to be the only drug that is not illegal but kills more people each year who smoke.
asked by westwood 
English
I need help writing a thesis sentence for an analytical essay about Romeo and Juliet. The topic the teacher chose is "Romeo and Juliet face untimely deaths because they act recklessly and hastily. thanks!
asked by Nicole 
Physics
A space probe is traveling in outer space with a momentum that has a magnitude of 7.5e7 Kg*m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 2.0e6N and a direction opposite to the probe's motion. It
asked by Natasha 
maths
If f (x) =x^3−2x^2−x+5,then the remainder of g(x)=f( f(x)) divided by (x − 2) is(a) 3 (b) 5 (c) 7 (d) 9 (e) 11? 3 days ago  1 day left to answer.
asked by nothando 
Chemistry
calculate the specific rate constant A] (mol/L) [B] (mol/L) Rate of appearance of C (mol/Lhr) 1.0 ×10^2 1.0 0.30×10^−6 1.0 ×10^−2 3.0 8.10×10^−6 2.0 ×10^−2 3.0 3.24×10^−5 2.0 ×10^−2 1.0 1.20×10^−6 3.0 ×10^−2 3.0 7.30×10^−5
asked by Kelly 
Life Orientation
3 checks and balances that are in place in South Africa that control and regulate media
asked by Damien 
Chemistry
calculate the specific rate constant A] (mol/L) [B] (mol/L) Rate of appearance of C (mol/Lhr) 1.0 ×10^2 1.0 0.30×10^−6 1.0 ×10^−2 3.0 8.10×10^−6 2.0 ×10^−2 3.0 3.24×10^−5 2.0 ×10^−2 1.0 1.20×10^−6 3.0 ×10^−2 3.0 7.30×10^−5
asked by Kelly 
Math problem
having problems working this problem out please solve 49 5/2
asked by Lavern 
Biology
Why does the pCO2 value increase during hypoventilation? If hypoventilation causes shortness of breath, would that not increase the CO2 concentration, therefore decreasing pCO2? What am I understanding incorrectly?
asked by Bobby 
math
Melinda discovered that she took 26 heeltotoe steps to walk in a straight line from the center of her circular garden to any point on the outer edge of the garden. How many heeltotoe steps is the diameter of Melinda's garden?
asked by gary 
Physics
A person heats a can of soup on a stove. If he does 250 Joules of work ON the soup by stirring it as the burner adds 1675 Joules of heat, what is the change in its internal enegry? I did 250 1675 because the work done On something is negative. can you
asked by angela 
Chemistry
Given info: A] (mol/L) [B] (mol/L) Rate of appearance of C (mol/Lhr) 1.0 ×10^2 1.0 0.30×10^−6 1.0 ×10^−2 3.0 8.10×10^−6 2.0 ×10^−2 3.0 3.24×10^−5 2.0 ×10^−2 1.0 1.20×10^−6 3.0 ×10^−2 3.0 7.30×10^−5 Reaction: 3A+2B>2C+D
asked by Kelly 
Math
ln [1.70E2] = ln(0.144)  (k s1)(3609 s) Solve for k. I have a TI30 calculator. Am I suppose to press just the ln button or do I have to press 2nd and then ln??
asked by Hannah 
Physics
A space explorer is 4.6 billion km away from a certain star, and observes that the gravitational force of attraction exerted on the spacecraft by the star is 500 N. What will the force become when the craft has approached to a position 2 billion km from
asked by Steve 
math
Find the LCM of (7+5t),(4925t^2), and (7t5t)
asked by Terry 
Chemistry
Calculte the amount BTU that would be lost to cool 587lbs of water from 87 degrees F to 49 degrees F.
asked by Rohan 
science
How do I find oxidation numbers of certain elements in compounds? I'm really confused so very simple terms would be appreciated. EX: What is the oxidation number of sodium in NaOH???
asked by Viola 
PreCalculus Help, thanks:)
Find the domain of f(x) = 1/ (square root 2x^27x15) I tried setting 2x^27x15 greater or equal to zero but I don't know where to go from there to solve for my domain. Help please!:)
asked by L.Bianchessi 
Business
Imagine you are the owner of a growing technology or service company with a healthy cash flow but little in the way of property and equipment. Develop a strategy for meeting your shortterm financing needs to acquire needed property and equipment.
asked by Chase 
Life orientation
What are the checks and balances that are in place in south africa that control and regulate media
asked by Thato 
trigonometry
If a planet has a semimajor axis of 2 AU (astronomical units) a) what would the semimajor axis of a superior planet be if the angle of greatest elongation for the inferior planet is 20 degrees as viewed from the superior planet? b) assuming a day on the
asked by rachel 
Astronomy
you are 100,000 feet above planet B and the ground range to your horizon point is 400 miles. What is the radius of planet B?
asked by Anonymous 
linguistics
why is there a length difference between the word "house" in 'greenhouse' and 'green house' when you say the word? I know it takes longer to say 'house' in "green house" but why does it take longer? please help me. I am so confused :(
asked by Mitch 
Management
When Nike yielded to pressure from uman rights groups and agreed to close its manufacturing plants located in developing nations,they were acting as (a) proactive, (b) accommodative, (c) defensive, or (d) environmental managers. I chose (c) for my answer.
asked by Carol 
Calc 2
The region bounded by y= 1/(x^2+2x+5), y=0, x=0, and x=1, is revolved about the xaxis. Find the volume of the resulting solid.
asked by Mo 
quantitative decision making
james and john invested ¥700 and ¥300 respectively, at the end the of one year, they divided their profits such that a third of the profit is divided equally for the efforts they have put into the business and the remaining amount of profit is divided in
asked by philip 
biology
If you have the option to save from extinction either the carnivores oor the primary produccers in an ecosystem which whould you protect? why
asked by Rose 
Physiology (reproduction)
if only one sperm penetrates into the zona pellucida of the ovum n other sperm which try to bind to the ovum are prevented from binding by the cortical granules secreted by exocytosis than what happens in Sextuplet? please give a detailed explanation.
asked by kamran Ahmed 
Tiáº¿ng ANh
Tháº§y lÃ m giup em cÃ¢u nÃ y vá»›i áº¡. Make these sentences positive or negative or questions, using the verbs given in capitals and the past Simple. Of course we â€¦. The house ourselves. We donâ€™t know anything about building! (
asked by Chu Phi HÃ¹ng 
trig or geom
i have to use pythagorean theorem to find the legmeasure of x. in the formula, x would be a^2. the hypotenuse is 11 and "b" is unknown. there is also a cosine with a measure of .4 at the topmost angle.. what is x? i don't know how to use cosine with the
asked by starlight18 
math
Find the coordinates of the xintercept. 2x + y = 6
asked by Tony 
Chemistry
calculate the specific rate constant A] (mol/L) [B] (mol/L) Rate of appearance of C (mol/Lhr) 1.0 ×10^2 1.0 0.30×10^−6 1.0 ×10^−2 3.0 8.10×10^−6 2.0 ×10^−2 3.0 3.24×10^−5 2.0 ×10^−2 1.0 1.20×10^−6 3.0 ×10^−2 3.0 7.30×10^−5
asked by Kelly 
trig
If sec theta = radical 5, what is the exact value of cos theta
asked by Dan 
Social Studies / History
What Segments Of U.S Society Were Affected By The Institution Of Selective Service System ?
asked by Remy 
PHi103
Karl Popper advocates, as a more efficient way to examine a scientific hypothesis, which of the following I believe it could be A Gather as much data as possible supporting the hypothesis
asked by Ashley 
Chemistry
My chemistry teacher said that the pCO2 value increases during hypoventilation. Why is that? If hypoventilation causes shortness of breath, would that not increase the CO2 concentration, therefore decreasing pCO2? Because if you think about pH, a larger H
asked by Bobby 
calculus
The efficiency of an internal combustion engine is given by E= (1v/V)^0.4 Where V and v are the respective maximum and minimum volumes of air in each cylinder. a) Show that ∂E/ ∂V > 0 and interpret your result b) Show that ∂E/ ∂v < 0 and interpret
asked by help 
Business
As a growing number of producers pursue multichannel distribution, they could probably learn some lessons from the masters at the game—the big soda companies. Think of all the places in your community where you can purchase a Coke or a Pepsi. How is the
asked by Chase 
math
In a clinical trial, a drug used to reduce blood pressure caused side effects in 6% of the patients who took it. For a new rial, two patients were selected at random. Find the probability that both the patients had side effects.
asked by ally 
Chemistry
3.54*10^7 g of TiCl4(g) are reacted completely. If 7.91*10^6 g of Ti(s) is actually obtained, calculate the percent yield.
asked by Nikki 
math
john has a 25 gallon fish tank. John filled his fish tank today with 24 gallons of water. the water evaporates at a rate of 1.5 gallons per week week. John adds 2 gallons to the tank every other week. At which of the following times will the tank contain
asked by Tom 
Physicsis this correct?
A person heats up a can of soup on a stove. If he does 250 joules of work on the soup by stirring it as the burner adds 1675 joules of heat, what is the change in its internal energy? I took 1675j  250 j = 1425j
asked by Tracy 
Math
adam has 2 yards of fabric to make a shirt. He needs 1 foot of fabric for each arm and 3 feet of fabric for the rest of the shirt. Does he need an estimate or exact answer to decide if he has enough fabric?
asked by Dana 
A&P II
I have 2 problems/questions I am unsure of the answers. The first one is "how would you demonstrate the Valsalve maneuver using the model lung?" and 2. If a woman is breathing rapidly and deeply after exercise, would TLC, RV, TV, IRV, and ERV stay the
asked by Mary 
maths
simplify 48x(14+x)=16(x+14)
asked by Anonymous 
social studies
I need help in evaluating 2nd grade social studies standards according to Arizona Academic standards.
asked by stephanie 
Physics
A spring and block is set up on frictionless tabletop. The 30N/m spring is compressed 16 centimeters and released. What is the maximum speed the 2.0 kilogram block will reach?
asked by Tracy 
Physics
A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
asked by Anonymous 
Physics
A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
asked by Anonymous 
Physics
A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
asked by Anonymous 
biology
A medical microbiological lab report indicates that a sample contained a biofilm, and that one species in the biofilm was identified as Neisseria gonorrhoeae. Is this strain of Neisseria likely to be pathogenic? Why and why not?
asked by Anonymous 
chemistry
what is the wave lenghth of the alpha particle Po which has velocity of 15x10 to the power 6 ms1
asked by Anonymous 
Chem
238U + 2H > ________+ 2 1n 92 1 0 I don't know the answer that goes in the blank or how to figure it out. Please help me. Thanks
asked by Andretti 
PHYSICS
A space explorer is 4.6 billion km away from a certain star, and observes that the gravitational force of attraction exerted on the spacecraft by the star is 500 N. What will the force become when the craft has approached to a position 2 billion km from
asked by Jake 
math
how to write 51/60 as a reduced fraction
asked by Anonymous 
Calculus
Estimate the area under the curve f(x)=x^2 between x=0 and x=1 using 4 rectangles of equal width if a) The height is taken from the right endpoint b) The height is taken from the midpoint. I have no idea what exactly this question is asking me to do is
asked by Enrique 
English
Thank you very, very much Ms. Sue. We left out just a few more LAST sentences, I'm really unsure of. I did some corrections myself. Can you please check them? 1) Big Brother is a symbol of open threat towards the enemy of the Party. Better: he is a threat
asked by Henry 
life orientation
What is media
asked by truly 
PH103
A good way to establish a conclusion as true, or probable, is to A)insist that you are correct. b)construct a strong argument. c)construct a fallacious argument. d)ignore any objections to your conclusion I think it is b, can you help me to be sure.
asked by Ashley 
chemistry
under rate of reactions Fe^2+ + Cr2o7^2 » Cr^3+ +Fe^3+
asked by faith 
art
character in the production is an evil old man who want to take over the world write a character sketch forthis character
asked by karabelo kepadisa 
American History
In the southern campaign launched by the British, Cornwallis lost a battle with the Americans under Nathaniel Greene at
asked by Anonymous 
CHEMISTRY HELP NEEDED!!
Given info: Reaction: 3A+2B>2C+D {A] (mol/L) 1.0 ×10^2 1.0 ×10^−2 2.0 ×10^−2 2.0 ×10^−2 3.0 ×10^−2 [B] (mol/L) 1.0 3.0 3.0 1.0 3.0 Rate of appearance of C (mol/Lhr) 0.30×10^−6 8.10×10^−6 3.24×10^−5 1.20×10^−6 7.30×10^−5
asked by Kelly 
astonomy
If 100 asteriods, each of diameter of 100 km, were combined into a single object, approximately what would its diameter be?
asked by Andrea 
HCS/490
Describe the general impact that changing demographics may have on the health care market
asked by Inez Williams 
math
Transform the equation by completing the square: 4x^2 + y^2  8x + 6y 3 =0
asked by Boby 
Physics
Use the first law of thermodynamics to determine the amount of heat change, Q, and whther it was added to or removd from the system. W=225J Delta U=600J Q=?
asked by Tracy 
math
if two vertices of equilateral triangle is (0,0) (3,3^1/2)find the third vertex
asked by Anonymous 
physics
is there any gravitational force existent between charged objects?
asked by kiba 
calculus
given the circle x^2+y^2+2x2y14=0, find it's intersection with the yaxis. please help me....
asked by alyssa 
Trig.
finnd a possible measure of the angle drawn in standard position that passes through the points (ã2,ã2)
asked by John 
TO MS.SUE, WRITEACHER,VANESSA, MARTHA,OR ANYONE
CAN YOU HELP ME STUDY FOR THE PSSA.
asked by Celest 
algebra
x/8+1/6=1/10
asked by Anonymous 
Math PLEASE HELP ME!!
What is 14% of 120?? PLEASE SHOW ALL WORK, THANK YOU!!!
asked by Madelyn Santiago 
astronomy
Suppose Mercury's rotation period were threequarters of its orbital period. How many Mercury days would ther be in a Mercury year?
asked by Linda 
math
there are 7 identical spheres each colored on the inside with one color in more than 4 of them. When 2 spheres of the same color touch each other they both glow in color. Using as few comparisons as possible, find a single spehere that has the majority
asked by juliann 
Math
29 * 6^(3x) = 13 Thanks!
asked by Will 
Math
I asked this question before sorry I I shouldn't ask it again. Express the following number in scientific notation: 23^941 How do i get the answer for this? on my graphing calc, i get an error overflow messasge when i try to compute it. what is the decimal
asked by Sandy 
english
what are some connotations of Hawaii?
asked by loren 
English
Ms Sue or Damon, as Writeacher is on vacation, I really hope you can check my today's post. I still have a few other sentences.It is extremely urgent!!! 1) To be honest, I had never heard of Derek Landy, but I found out, to my surprise, that he is a
asked by Henry 
Life orintion
Explain three checks and balances that are in place south africa that control and regulate madia
asked by Elie 
Math need help
y= sqrt(81x^2) What length and width should the rectangle have so that its area is a maximum? (smaller value) (larger value) I have no clue how to do this, so if someone could please help! thank you
asked by Angelina 
maths
simplify 48x(14+x)=16
asked by Anonymous 
sociology
Explain the three steps for measuring a variable.
asked by Aaron 
English
Thank you very much, Damon. Here are a few more sentences I need to check.In particular, a need to know which word choices are possible. 1)He is brought/sent to (into also possible) prison cell 101, where he is systematically beaten and tortured. O’Brien
asked by Henry 
Math
If you deposit 1200.00 annually with 5% compounded interest, how many years will it take to get to a million dollars?
asked by Molly 
Math(Can someone please answer!!)
ln [2.30E2] = ln(0.102)  (k s1)(2360 s) k = 6.31E4 s 1 I did 2360k = 1n(0.102 * 0.023) 2360k = 6.055 then I divided 2360 by 6.055 but I didn't get 6.31e4. Where did I mess up???
asked by Hannah 
sociology
Explain the three steps for measuring a variable.
asked by Aaron 
MATH...YUCK!!!H8 IT
IM DOING A PROJECT FOR SCHOOL AND CAN"T FIND THE ANSWER.... WHY IS Pi so important?
asked by JESSICA 
business
outline the role team work or team building can play in the business planning process?
asked by student 
Life orintion
Explain three checks and balances that are in place south africa that control and regulate madia
asked by Elie 
PhysicsIs this correct?
A cylinder contains 0.1 cubic meters of gas at atmospheric pressure. This gas is allowed to expand until its pressure drops to 7800 Pa. What is the gas volume after this expansion has taken place? answer: 7800/10130 = 0.770
asked by Tracy 
Math
Find the discriminant. Tell which conic section the graph will be. 3x^2 + 12 xy + 9y^2 + 7x 2y  100
asked by Drew 
foreign language
how do you say head in spanish
asked by Xzavier 
trig
If sec theta = radical 5, what is the exact value of cos theta
asked by Dan 
calculus
find the domain of the function f (x,y) = e^xy
asked by maria 
English
I still need to check this rephrase I once wrote on Dickens' Hard Times. Thank you. 1) Sissy says that her father works with horses in a circus. He belongs to the the horseriding,that is to the world of imagination Mr. Grandgrind totally rejects. 2) Mr.
asked by Henry 
social statistic
what is the zscore for a raw score if 89?
asked by dee 
alg2trig
2(3y4)^(3/5)4=50
asked by alice 
astronomy
Suppose that the gravitational time dilation on the surface of a star is 1.1. What would be the escape velocity from the star?
asked by Andrea 
PreCalculus
Find the maximum value, and where it occurs for eAch function. G(x)= (square root x^2+4x+12)
asked by L.Bianchessi 
English
I need your help to check the word choice in these sentences. Thank you. 1) George Orwell along with Ernest Hemingway were among the more famous (is "most" a mistake?) foreigners participating in the efforts against the fascists. 2. Many Spanish
asked by Henry 
Math
48 is 88% of what number
asked by Marie