Questions Asked on
April 3, 2011

freedom similes and metaphors?
I'm stuck on what to write for freedom similes and metaphors? help? Thanks!
asked by Skye 
Physics
A certain moving electron has a kinetic energy of 1.01 × 10−19 J. Calculate the speed necessary for the electron to have this energy. The mass of an electron is 9.109 × 10−31 kg. Answer in units of m/s.
asked by lucky 
college chemistry
When ammonium carbonate decomposes, what would happen to a glowing splint in the presence of the gases that are evolved. Explain
asked by jennifer 
physics
the velocity of the water jet discharging from the orifice can be obtained from v = (2gh)^(1/2), where h = 2m is the depth of the orifice from the free water surface. determine the time for a particle of water leaving the orifice to reach point B and the
asked by  
Physics helpp please!
A 8000kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m
asked by Kate 
Physics  please help!
Particles 1 and 2 of charge q1 = q2 = +3.20 x 1019 C are on a y axis at distance d = 22.0 cm from the origin. Particle 3 of charge q3 = +9.60 x 1019 C is moved gradually along the x axis from x = 0 to x = +5.0 m. At what value of x will the magnitude of
asked by Char 
chemistry
Does a precipitate form if HCl and Ba(NO3)2 are mixed?
asked by Greg 
physics
"A solid cylinder and a thinwalled hollow cylinder have the same mass and radius. They are rolling horizontally along the ground toward the bottom of an incline. They center of mass of each cylinder has the same translational speed. The cylinders roll up
asked by Seth 
Chemistry
What is the percent ionization for each of the following acids? a. 0.022 M HClO2 solution of pH= 3.88 Answer obtained: .60% pH = 10^(3.88) = 1.32 x 10^4 % ionization= [H+] formed divided by MHA (original acid concent) x 100 = (1.32x10^4)/0.022 x 100 =
asked by Cassie 
Chemistry
A sample containing 4.80g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the new volume if 0.500 mole of O2 gas is added? Am I converting the 4.80 O2 into moles first? How do I do that?
asked by Shambrey 
Chemistry
This is for a lab about determining the equilibrium constant. Given: 5.00mL of .203M Fe(NO3)3 mixed with 100mL of .00205M KSCN in a .5M HNO3 solvent for both solutions. Resulting absorbance for solution is .315. How can i find the total Fe, [Fe*] and SCN,
asked by Bob 
Chemistry
What is the pH of a 0.0344 M KOH solution?
asked by Cassie 
finance
A self –employed person deposits $3,000 annually in a retirement account(called a Keogh account)that earns 8 percent. a) How much will be in the account when the individual retires at the age of 65 if the savings program starts when the person is age 40?
asked by Anonymous 
Math
bill takes a loan of $8,000 at a 13% simple interet rate for 6 years. How much interest will he pay after 3 years?
asked by Cee Cee 
linear programming app
write the constraints as linear inequalities and identify all variables used. A canoe requires 8 hours of fabrication and a rowboat 5 hours. The fabrication department has at most 110 hours of labor available each week
asked by ash 
physics
A block of mass m = 5 kg is attached to a spring (k = 35 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 4 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley,
asked by Anonymous 
finance
A 5year annuity of ten $4500 semiannual payments will begin 9 years from now, with the first payment coming 9.5 years from now. If the discount rate is 12% compounded monthly, what is the value of this annuity five years from now? What is the value three
asked by Anonymous 
Physical Science
When aqueous solutions of Na2CO3 and BaCl2 are mixed, the products are NaCl and?
asked by Wendy 
physics
a 12 kg sled is pulled horizontally with a force of 82 N. the coefficent of the kentic friction of the sled is 0.42. draw a FBD of the sled.
asked by OMar 
Chemistry
If 80.0 grams of methane were reacted with 368 grams of oxygen, how many grams of water would be formed (find limiter first).
asked by Lisa 
Chemistry
A 50.0 mL sample of 0.23 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, is titrated with 0.14 M KOH. Ka of CH3CH2COOH = 1.4 multiplied by 105. What is the pH at equivalence point?
asked by George 
Chemistry
a. What is the theoretical [H+] of 0.00030 M HCl? Answer: 0.00030 b. The above 0.00030 M HCl solution was prepared in the lab by dilution. The pH of the solution was measured as 4.23. Calculate the [H+] from the measured pH. Answer: pH = 4.23 = 10^ (4.23)
asked by Cassie 
Calculus
Find the area of the region enclosed by one loop of the curve. r = sin(12θ)
asked by Beth 
chemistry
Water (density = 1.00 g/mL) will float on hexane (density = 0.95 mL).
asked by Anonymous 
statistics
Three students take equivalent stress tests. Which is the highest relative score? a. A score of 144 on a test with a mean of 128 and a standard deviation of 34. b. A score of 90 on a test with a mean of 86 and a standard deviation of 18. c. A score of 18
asked by Charlie 
Calculus
The base of a solid is the region bounded by the parabola y^2=4x and the line x=2. Each plane section is perpendicular to the xaxis is a square. What id the volume of the square?
asked by Amanda 
Physics
"A 1220N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960N crate hangs from the far end of the beam. Find a) the magnitude of the tension in the cable and b) the magnitude of the horizontal and
asked by Seth 
chemistry
How many grams are in 2.25 mole of NaBr?
asked by Connie 
Stat
An instant lottery game gives you probability 0.02 of winning on any one play. Plays are independent of each other. If you play 4 times, the probability (±0.0001) that you win on none of your plays is about
asked by may 
chemistry
given the reaction 4NH3 + 3O2 =2N2 + 6H20 how many moles of N2 would form if 2.77 moles of NH3 reacted completely?
asked by Carrie 
Chemistry
The Ka values of H3PO4 are shown below. Ka1 7.5 multiplied by 103 Ka2 6.2 multiplied by 108 Ka3 4.8 multiplied by 1013 What is the pH of a 0.14 M solution of Na2HPO4?
asked by George 
Chemistry
Vinegar is a dilute solution of acetic acid. In the titration of 5.00 mL of vinegar, 39.75 mL of 0.137 M sodium hydroxide solution was required to neutralize the vinegar to a phenolphthalein end point. Calculate each of the following of the vinegar. (a)
asked by Mark 
Europe
how did europe's geography affect its development?
asked by Pamela 
math
You have a 1200 foot roll of fencing and a large field. You want to make two smaller fields by splitting a rectangular enclosure in half.. 1. Use an algebraic solution to find the dimensions of the largest such enclosure. How big will the enclosure be?
asked by jill 
physics
A 9.50 {\rm g} bullet has a speed of 1.40 {\rm km/s}. What is its kinetic energy in joules? What is the bullet's kinetic energy if its speed is halved? If its speed is doubled?
asked by Anonymous 
Calculus
Find the equation of a quartic polynomial whose graph is symmetric about the yaxis and has local maxima at (−1,1) and (1,1) and a yintercept of 1.
asked by Cad 
Titrations (chem)
In the titration of a 0.101 M sodium hydroxide solution, 19.02 mL of 0.130 M sulfuric acid solution was required to neutralize the sodium hydroxide in reactions that replace both hydrogen ions of the sulfuric acid. Calculate the number of milliliters of
asked by Sarah 
chemistry
A sample of propane, \rm C_3H_8, contains 12.8 moles of carbon atoms. How many total moles of atoms does the sample contain?
asked by Ivy 
algebra
Suppose the speedometer in your car reads 55.0 mph also written as mile/hour. What is your speed in m/sec? (1 km = 0.621 mi.) unit factor methond soooo lost on this one please help!!!
asked by casey 
math
David helps his dad with grocery shopping.he wants to buy brand x or brand y laundry detergent.he knows his dad wants the best value,so he compares the prices.48 ounces of brand x is 5.76.two pounds of brand y is 4.80.which brand is the better value.show
asked by santos 
Chemistry
A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the following points in the titration. Ka of HCOOH = 1.8 multiplied by 104. What is the pH when 50.0 mL NaOH is added 60.0 mL NaOH is
asked by George 
finance
An investment offers to pay you a $10,000 a year for five years. If it costs $33,520, what will be your rate of return on the investment?
asked by Anonymous 
Calculus
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
asked by Karku 
chemistry
given the reaction 4NH3 + 3O2 =2N2 + 6H20 how many moles of N2 would form if 2.77 moles of NH3 reacted completely?
asked by Carrie 
Physics
Two tugboats are pulling a freighter. Find the net force and direction of the acceleration for the following cases. Assume that each tugboat pulls with a force of 1.2 x 10^5 N. Assume no resistive force at this time. a) Tugboat 1 pulls in a direction given
asked by Emily 
Physics
An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into oscillation with an initial potential energy of 0.150 J and an initial kinetic energy of 6.00×10−2 J. What is the amplitude of
asked by Jake 
Principles of Business
The term 'human resources' refers to: (A)persons available for productive and professional services (B)raw materials used in the manufacture of goods (C)materials and goods made by human beings (D)capital invested by shareholders in company
asked by Sasha 
stat
Musical styles other than rock and pop are becoming more popular. A survey of college students finds that 34% like country music, 32% like gospel music, and 12% like both. What is the conditional probability (±0.01) that a student likes gospel music,
asked by may 
Chemistry
The Ksp for a certain metal hydroxide, M(OH)2 (molar mass = 127) is 3.5 × 1019. What is the pH for a saturated solution of this hydroxide? Confused on how to set up this problem...
asked by Dan 
Calculus
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
asked by Karku 
Global
causes and effects of the Crusades?
asked by TeeTee 
physics
"By means of a rope, whose mass is negligible, two blocks (mass: 11kg and 44 kg) are suspended over a pulley. The pulley can be treated as a uniform solid cylindrical disk. The downward acceleration of the 44 kg block is observed to be exactly one half the
asked by Seth 
chemistry
resonance structures of ch3nco
asked by chamo 
Grammar
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. • Mark each verb used in bold and, in parentheses, identify the specific tense used. CAN YOU TELL ME IF
asked by Cheril 
AP Chemistry
NF2 has (2, 3, 4) regions of high electron density and (2, 4, 6) bonded electrons.
asked by Anonymous 
english
identify one example of personification from dorothy aldis s poem snow and knikki giovannis poem the world is not a pleasant place to be
asked by Ashley 
math polynomials
Simplify 4q^25q1+8q^2+8q9 A. 4q^2+3q+8 B. 12q^2+3q10 C. 12q^213q10 D. 4q^213q+8 I'm pretty sure its B. 12q^2+3q10 Add (4x2y) + (7x5y) A. 11x+3y B. 11x7y C. 3x+3y D. 3x7y I think this one is B. 11x7y, also.
asked by Brittany 
Chemistry
Consider the following electochemical cell. Pt  Fe3+ (0.0600 M), Fe2+ (6.50e5 M)  Sn2+ (0.0620 M), Sn4+ (3.90e4 M)  Pt (a) Calculate the voltage of the cell, Ecell, including the sign.
asked by Logan 
Chemistry
What pH is required to start precipitation of Fe(OH)3 from a 0.380 M solution of FeCl3? Ksp of Fe(OH)3 = 4.0e29.
asked by Pob 
Chemistry
How many milliters of 1.80M HCl are required to react with 30.0 grams of calcium hydroxide according to the given equation: CA(OH)2(s) + 2HCl(aq)> CaCl2(aq) + 2H2O(l)
asked by Elaine 
MDM4UO
A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on one of his test is 8% What is the probability that the class will not earn a pizza for the firt seven tests? Answer is 0.5578
asked by Sonia 
Health
The patient was started on a Lasix drip and transferred to the cardiac floor. The concentration of the Lasix drip is 64mg/250mL D5NS. The prescription is for the drip to deliver 4mg of Lasix per hour. How many hours will the bag last?
asked by Steve 
Calculus
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0,50), a minimum at (1.5,−4), and no critical points between these two points.
asked by Karku 
finance
A 45yearold woman decides to put funds into a retirement plan. She can save $2,000 a year and earn 9 percent on this savings. How much will she have accumulated if she retires at age 65. At retirement how much can she withdraw each year for 20 years from
asked by Anonymous 
Chemistry
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams of compound remain in solution? How may grams of solid are formed?
asked by Craig 
English
this is what i have done so far, but i need help with the rest. The type of graphs that could be used for the topic samesex marriage, such as graphing out how many samesex couples exist in the state of region. Than comparing the number of licensed
asked by Jennifer 
chemistry
A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample increases the total pressure to 1250 torr, what is the partial pressure in torr?
asked by Jane 
Literature
I am writing a paper on the movie "Smooth Talk" and the short story "Where are you going where have you been". I am going to be talking about how they are different from each other. I was wondering if someone could just let me know how my thesis sounds,
asked by Hannah 
english
i have no clue how to paraphrase!!! paraphrase the quotation: the poets voice need not merel be the record of man it can be one of the props the pillars to help him endure and pervail.
asked by Ashley 
Chemistry
A 22.3 mL sample of a weak monoprotic acid, HX, requires 50.0 mL of 0.040 M NaOH to reach the equivalence point. After the addition of 30.0 mL of NaOH, the pH is 5.30. What is the Ka of HX?
asked by George 
chem
If 0.752 g of pure sodium carbonate was dissolved in water and the solution titrated with 25.90 mL of hydrochloric acid to a methyl orange end point, calculate the molarity of the hydrochloric acid solution. (Hint: This process takes the carbonate ion to
asked by Beth 
Chemistry
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams of compound remain in solution? How many grams of solid are formed?
asked by George 
finance
You invest $1,000 in a certificate of deposit that matures after 10 years and pays 5 percent interest, which is compounded annually until the certificate matures. a) How much interest will the saver earn if the interest is left to accumulate? b) How much
asked by Anonymous 
Chemistry
For the given reaction, how many moles of water will be formed starting with 45.0 moles of aluminum hydroxide: 2AL(OH)3(s) + 3 H2SO4 > Al2(SO4)3 + 6H2O
asked by Elaine 
physics
ou are the technical consultant for an actionadventure film in which a stunt calls for the hero to drop off a 18mtall building and land on the ground safely at a final vertical speed of 5 m/s. At the edge of the building's roof, there is a 100kg drum
asked by Hard to solve ..please help!!!! 
Calculus II
Find the area of the region enclosed by the inner loop of the curve. r = 5 + 10sin(θ) Thanks for the help!
asked by Julie 
Physics
Two point charges, one of +3.00 105 C and the other 5.00 105 C are placed at adjacent corners of a square 1.400 m on a side. A third charge of +5.70 105 C is placed at the corner diagonally opposite to the negative charge. Calculate the magnitude and
asked by Terri 
biology
If you toss a coin and it comes up tails on eight consecutive tosses, what is the likelihood it will come up heads on the ninth toss?
asked by demi 
Computer science
Hi, Can someone please confirm the following for me .. This realtes to PSK or phase shift keying. Is it right that 8PSK uses eight different phase shifts each representing one of the eight patterns of three bits ... ?? Does it ehn follow that 256PSK uses
asked by Oddie 
chemistry
calculate the heat released for 5.00 grams if H2O cooling from 99 degrees celcius to 22 degrees celcius in joules and calories
asked by Meagan 
physics
Water skiers often ride to one side of the center line of a boat, as shown in the figure . In this case, the ski boat is traveling at 15 {\rm m}/{\rm s} and the tension in the rope is 76 N. If the boat does 3600 J of work on the skier in 53.6 m, what is
asked by Anonymous 
chemistry
a sample of gas has a volume of 6.00L at 20.0 degrees celcius . what will be its volume at 40.0 degrees celcius pressure remaining constant
asked by monica 
com155
Having a credit card could get someone into much trouble if it is not used responsibly. I personally have nightmares when it concerns credit cards. I do not like paying interest on something when it is not necessary. I learned how to use credit cards the
asked by Joe 
Geometry
Two sides of similar regular polygons are in the ratio of 5 : 4. The sum of their perimeters is 20. Find the perimeters of each polygon
asked by jessilyn 
math HELP!!
. Adam wants to compare the fractions 2 5 1 6 , and 1 3 . He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fractions.
asked by liz 
social studies
Help! 1. Describe the social strusture of feudal society. 2. what were the similarities and differences between feudalism in Euope and Japan? 3. How did the Roman Catholic Church influence social, political, and economic life during the Middle Ages? 4. How
asked by Pamela 
math
The sum of two integers is 4. Their difference is 12. Name the integers.
asked by johnny 
Chemistry
A student reacts 20.0 grams of sodium hydroxide with hydrochloric acid and obtains 25.0 grams of sodium chloride. What is the percent yield?
asked by Lisa 
math
Which choice below gives the number of faces, edges, and vertices of a rectangular pyramid? A. 5, 8, 5 B. 4, 7, 4 C. 6, 12, 8 D. 8, 10, 8
asked by liz 
arithmetic
In a mobile phone network, how many times as strong would a signal be expected to be at 200 m from a base station, compared with at 600 m? i calculated 3 or 81. which is it right?
asked by Subash 
geometry
A right circular cylinder has an altitude of 11 feet and a radius of 5 feet. What is the lateral area, in square feet, of the cylinder, to the nearest tenth?
asked by megan 
Chemistry
Determine the density of CO2 gas at STP.
asked by SusieQ 
Math
A recipe that makes 18 cookie calls for 3/4 cup of sugar. Howbmuch sugar is needes to make 24 cookies using this recipe?
asked by Cici 
chemistry
if you start with ten grams of lithium hydroxidr, how many grams of lithium bromide will be produced
asked by mary 
chemistry
Calculate how many mL of the 5% w/v AgNO3* solution must be added to 0.4020g of the sample to precipitate all the chloride. Assume the sample is NaCl. * this means tat there are 5 grams of silver nitrate present per 100ml of solution.
asked by Melanie 
Physics
"A small 0.5 kg object moves on a frictionless horizontal table in a circular path of radius 1 meter. The angular speed is 6.28 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the
asked by Seth 
physics
A 1,000 kg car accelerates uniformly to double its speed from 13.5 ms in 5.77 s. What net force acted on this car?
asked by nofa 
math HELP!!
Adam colored two parts of a 4 × 4 grid. He colored 1_ 2 of the squares red and 1_ 4 of the squares blue. How many of the squares are not colored? Explain your answer. What fraction of the squares are not colored? Explain your answer.
asked by liz 
English
I really need your help to rephrase the following lines taken from Owen's "Dulce et decorum est". I included a lot of question marks for the parts to rephrase. 1)In the second stanza the soldiers succeed in putting on thier clumsy helmets.Someone, however,
asked by Mike 
Chemistry
A 22.3 mL sample of a weak monoprotic acid, HX, requires 50.0 mL of 0.040 M NaOH to reach the equivalence point. After the addition of 30.0 mL of NaOH, the pH is 5.30. What is the Ka of HX?
asked by Mark 
Math
Complete the square for this conic section in standard form: x^2+y^26x+4y12=0
asked by Molly 
statistics
Three students take equivalent stress tests. Which is the highest relative score? a. A score of 144 on a test with a mean of 128 and a standard deviation of 34. b. A score of 90 on a test with a mean of 86 and a standard deviation of 18. c. A score of 18
asked by Charlie 
math
What is the difference between the shape of a side view of a triangular prism and a top view of a triangular prism?
asked by liz 
physics/ torques
A block of mass m = 5 kg is attached to a spring (k = 35 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 4 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley,
asked by HELP!!!! 
Math 11th Grade
Use Demoivre's Theorem to find the fourth roots of 16. Leave the four roots in trigonometric form. How the heck do i do this?
asked by Carl 
Leah
During a week in December on anchorage, Alaska the daily high temperatures were 20,18,10,15,15,25, and 11. Write an expression to find the average daily high temperature during that week.
asked by Math 
Math
The ratio of students to teachers is 28 to 2 at a school. If there are 42 new students how many teachers should be added in order to maintain the same student teacher ratio?
asked by KayKay 
Polynomial Doublecheck2
I asked this earlier, but I didn't get an answer. I'm glad though, because I found a couple of typos. I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they
asked by Brittany 
Physics
A small object A, electrically charged, creates an electric field. At a point P located 0.250 m directly north of A, the field has a value of 40.0 N/C directed to the south. What is the charge of object A?
asked by Noman 
English
I forgot to include the following sentences on fashion. I hope you can look at them, too. Thank you. 1) How do you call a halfbutton up Tshirt with a collar? In Italian it is called a polo Tshirt. 2) He is wearing a blue polo Tshirt with the Ralph
asked by Mike 
Math(statisc)
Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat
asked by ibrahim 
Chemistry
Suppose that you had a mercuryinglass thermometer and calibrated to measure temperatures from 10 degrees C to 110 degrees C and you wished to measure a temperature of approximately 115 degrees C accurately. How might you use your thermometer to do it?
asked by James 
finance
You are 25 years old and inherit $65,000 from your grandmother. If you wish to purchase a $100,000 yatch to celebrate your 30th birthday, what compound annual rate of return must you earn?
asked by Anonymous 
science
"How many calories of heat are required to raise the temperature of 650 g of water from 13.0C to 20.0C? (Heat of water is 1.00cal/g X C) "
asked by sharon 
AP PHYSICS PLEASE HELP
A spherical surface has a radious of .150 meters. A charge of +85.0 uC is placed on the sphere. A. decribe what happens to the electric potential of a 5.0 pC charge that is moved from a very far distance from the sphere to a point 0.100 meters away from
asked by Sanjida 
history
Must be eight to ten doublespaced pages in length and formatted according to APA style as outlined in the approved APA style guide. Must use at least 8 scholarly sources. My instructor wants me to write a essay with eight pages double spaced in lenght and
asked by Sharon 
Chemistry
For the given reaction, how many moles of ammonia will result from 4.0 moles of nitrogen N2(g) + 3H2(g) > 2NH3(g)
asked by Elaine 
geometry
the perimeter of triangle ABC is 21 units. Give the perimeter of the triangle formed by its midsegments (connecting midpoints of all sides).
asked by sreve 
AP Chemistry
A mixture of aluminum and zinc metal is used in 2 experiments described below: A A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg
asked by Kate 
HCS341
can someone explainwhy training and education are vital in health care and the importance of measuring competencies an is there a Description of the process for tracking and evaluating training effectiveness ? thanks
asked by Ari 
math
A rectangle has a length 10 m less than twice its width. When 2 m are added to the width, the resulting figure is a sqaure with an area of 196 m squared. Find the demensions of the original rectangle
asked by Anonymous 
Chemistry
What is the minimum amount of ice (at 0 degress C) that must be added to 250mL of water at 23 degrees C in order to cool it to 0 degrees celsius? (Density of water= .98 g/cm^3; heat of fusion= 333J/g; heat capacity of water= 4.184J/g C; and heat capacity
asked by Kayla 
ap ch em
004 10.0 points To what temperature must a sample of helium gas be cooled from 144◦C to reduce its volume from 4 L to 0.86 L at constant pressure? Answer in units of K.
asked by Anonymous 
World. Issues!
If a country has a high population density does that mean the the country has to be overpopulated? IS lebanon overpopulated?
asked by NINI 
calcium cloride
we are having a ice cream industry we are using calcium cloride to get 35 degree now we are getting 25 degree density of liquid is 1.210 how many kilo grams of calcium cloride to mix in liquid to get the density of 1.300 the liquid is nearly 3000 liters
asked by chitti 
math
Reggie knows the length and width of a rectangle.How can he find the perimeter of the rectangle.
asked by santos 
algebra
the equation y=1777x+27,153 can be used to predict the number Y of gun deaths in the US X years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in 2004 and 2009, In
asked by bianca last one I promise 
math
solve for 5x+3y=2 and 6x+4y=7
asked by maria 
mechanics
at what altitude above the earth's surface is the free fall acceleration equal to three quarters of its value at the surface ?
asked by aliza 
science
calculate the number of carbon atom in 6 moles of ethanoic acid
asked by Anonymous 
chemistry
if I add water to 100.0 mL of a 0.15 M NaOH solution until the final volume is 150.0 mL what will the molarity of the diluted solution be? If I set this up properly I believe it is 0.10 M.....am I correct?
asked by carla 
physics
I'm actually doing a project but I don't know how easy it will be to describe it. It involves two weights, both attatched to the same string through the center of a flat surface so one weight is directly on the surface, and the other is dangling below.
asked by stacy 
Algrebra
Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x7) = x + 11 Answer: x + 11 3.)
asked by Jeannie 
Algebra 2
please help i seriously don't understand any of these!! solve by factoring: 1.x^312x = x^2 simplify 1.4c/12c^5 2. a^2x/a 3. x^3y^4/2 x^2y^6
asked by Ashley 
geometry
The length of the smaller of the two diagonals of a rhombus is 12 and the length of the larger diagonal is 16. What is the length of a side of the rhombus?
asked by Reid 
algebra
Donna must choose a number between and that is a multiple of , , and . Write all the numbers that she could choose. If there is more than one number, separate them with commas.
asked by john 
Science
What will be lost if intrusion goes unchecked? Appeal to the biological diversity.
asked by N. West 
algebra
User: in 1995, the life expectancy of males in a certian country was 67.3 years. In 2001, it was 69.8 years. let E represent the life expectency in year t and let t represent the number of years since 1995. e9t)_t+_ e(11)=_
asked by zteava 
Math
What is 20÷50,000
asked by shay 
Chemistry
If 17.0 mL of 0.590 M CaCl2 are mixed with 46.6 mL of 0.480 M CaCl2, calculate the molarity of each ion in the final solution? Assume the volumes are additive.
asked by Pob 
Biology
What happens if you increase biodiversity? Decrease it?
asked by Ann 
chemistry
Draw the tritration curve for the neutralization of a 100ml sample of 1M solution of HCl with a .6M solution of Naoh point 1: 2 ml NaOH edded point 2: 40 ml NoOH ADDED POINT 3: EQUIVALENCE POINT 4: 80 ML NaOH added
asked by sam 
trig
If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.
asked by A 
trig
If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.
asked by A 
Finance
I need help with this problem: 1. Hanster Inc. is a levered firm with publicly traded shares. The company has 250 million shares outstanding with a share price of $16 and an estimated equity beta of 1.50. The company has market value based outstanding debt
asked by Duffy 
Physics
a shaft rotation @ 800 rpm delivers a torque of 240 N.m to an output shaft that is rotating @ 200 rpm. a. if the efficiency of the machine is 70%, compute the output torque b, what is the output power e=Po/Pi .7=x/240 N.m = 168 N.m this is not the answer
asked by Jeannine 
Chemistry
What volume will 10.0g of oxygen gas occupy at a temperature of 22 degrees C an a pressure of 740. torr? Hint: Change pressure units to atmospheres.
asked by SusieQ 
math
how write a number story that solve by adding
asked by ishmam 
English
I left out the following sentences. Thank you for your help. It's urgent 1) I must always bring all my books and exercise books to school (class?) I must do (my) homework every day. 2) How can I get to the school (or to school?) from here? Do you know how
asked by Mike 
science
what would most likely happen to organisms in an ecosystem if the temperature suddenly increased alot for an extended period of time?
asked by jada 
chemistry
Calculate each of the following quantities in 0.183 mole {\rm (C_3H_5)_2O}: Find the Atoms of H and C
asked by Ivy 
French  Sentences
Could you check to see if these sentences make any sense. I tried to simlify what I wanted to say. Oui, j'aime l'art parce il fais moi sourire. Il fais moi avoir envie de magique, et il donne moi plaisir. In english: Yes, I love art because it makes me
asked by Karley 
physics
Bob..thank you very much for taking time with my question but I still don't seem to get it. the book answers are a=672 N.m b=14.1 KW to reiterate the problem...a shaft rotating @ 800 rpm delivers a torque of 240 N.m to an Output Shaft that is rotating @
asked by Jeannine 
Word Meaning
What's another word for unconsitutional?
asked by Heather 
statistics
A sample of 36 females is taken. What is the probability that the mean height of these women is shorter than 64 inches if we know the height for all American females is N(63,3^2)? What is the probability that a random woman is shorter than 64 inches?
asked by Cori 
Business  royalty
I'm watching shark tank and they keep going on about royalty. They'll say something along the lines of: I'll give you 500k for 30% equity and 10% royalty. I don't really understand all this business stuff but what I think is going on it that they're giving
asked by Lena 
math2
What would be the greatest commmon factor to 15, 34, and 55?
asked by Anonymous 
Chemistry
Given the following information: Ag^+(aq) + Cl^(aq)AgCl(s) Keq=1.8x10^1 Ag^+(aq) + 2NH3(aq)Ag(NH3)2^+(aq) Keq=8.2x10^3 Explain why the AgCl(s) dissolved when NH3 was added to the test tube.
asked by Gina 
English
In Chicago what are some jobs problem list it.Explain
asked by sanjana 
physics
what is the answer for this a car starts from rest at 0.8 meters pre seconds for 10 seconds and contiunes for a further 20 seconds what is the distance travelled
asked by chadd 
Little Miami
Two redtangles are similar. One has a length of 11 cm and a width of 6 cm, and the other has a width of 5 cm. Find the length of the second rectangle. Round to the nearest tenth if necessary.
asked by Susuan 
chemistry
a solution that has an absorbance of 0.603 is diluted ten fold. What is the absorbance of this solution now?
asked by carla 
Sociology
I need help with these homework questions!! 1. if a young person aspiring to a career in environmental issues joins professional society he or she should be engaging in: a. primary group behavior b. cliques c. anticipatory socialization d. none of the
asked by Tyler 
Finance
An investment generates $10,000 per year for 25 years. If you can earn 10 percent on other investments, what is the current value of this investment? If its current price is $120,000, should you buy it?
asked by Anonymous 
Chemistry
How many milliters of 0.500 M magnesium nitrate can be produced from the reaction of 35.5 grams of magnesium bromide.
asked by Arlene 
algebra
the equation y=1777x+27,153 can be used to predict the number Y of gun deaths in the US X years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in 2004 and 2009, In
asked by bianca 
Government
Could you give a short list of cases involving zero tolerence in schools. I am trying to locate individual cases to research and write a report on. Thank you
asked by Stact 
English
I forgot to add the following sentences. Thank you very much. 1) In the evening I always have to prepare (?) my schoolbag.I must put up my hand if I want to speak (??) I mustn't eat or drink during school hours (also: lessons?) 2) I mustn't interrupt my
asked by Mike 
Algebra
Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x7) = x + 11 Answer: x + 11 3.)
asked by Jeannie 
math
Write a equation for the following situation: In one U.S. town, the annual consumption, b, of beef (in kg per person) can be estimated by adding 20 to half the years, t, since 1975.
asked by Dena 
algebra 2
please help i have done these problems 3 times now and always get them worng. find the first three terms of (ab)^6 find the last three terms of (2x+y)^5 find the third fourth and fifth terms of (a+b)^9
asked by Ashley 
Physics
Electrons in a beam incident on a crystal at an angle of 300 have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5A0, and the reflected electrons are passed through a slit .Find the velocities of the
asked by Abby 
Physics
At what separation is the electrostatic force between a +11.5 mu C point charge and a +29.2 mu C point charge equal in magnitude to 1.90 N?
asked by Noman 
math
if 2 cards are drawn from 52cards deck without replacement, how many different ways is it possible to obtain a king on the first draw and a king on the second?
asked by Anonymous 
spanish2
how do you make a spanish comic strip with only two people talking to each other? please give me some examples
asked by quelynn 
Algebra I
How do you find compositions of functions? Example: (x Squared)(x2/5(8))
asked by Ryan 
elementary
Plane A left Vancouver for Winnipeg, a distance of 2232 km, travelling at an average speed of 560km/h. At the same time, Plane B left Winnipeg for Vancouver travelling at an average spped of 430km /h. how long after takeoff did the planes pass each other?
asked by Anonymous 
Chemistry
If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert electrodes. What is the [Cu2+] in the solution at the end of the electrolysis?
asked by Mango 
English
I have two more questions on the same theme. Thank you. 1)Pay attention to (not at) your teachers' explanations. 2)You must put up your hand, if you want to ask a question to your teacher/your teacher a question . Are they both possible? 3) You mustn's
asked by Mike 
math
A truck traveled 22.75 mileage in 3 hours and 30 mins. What is the unit rate?
asked by SixFlagsLover 
Literature
What literature do you consider to be part of the United States' current literary canon, and why? How do those selections reflect the cultural tradition of the United States? What do you consider to be part of your personal literary canon?
asked by Sonya 
Government
Left Wing: Support(sometimes radical) change; think that the government should provide more social services such as education and health care(therfroe they support higher taxes); believe that the government should be heavily involved in managing the
asked by Lola 
english
In paragrpahs 24 the letter Public Statement by Eight Clergymen why does King use narrative in paragraph 2 and why does King use refutation. In paragraph 3 why does King use allusion.
asked by Anonymous 
English
We have to give presentations on syntax. I remember awhile back reading this modernist poem which repeated the same sentence over 20 times but changed the order of words each time resulting in a different meaning. I think it really demonstrates the
asked by Regina 
math
2(5656)93872
asked by steph 
chemistr
A solution preapred from 50.0 g NaCL AND 150 G Of water has a mass/mass percent concentration
asked by chela 
English
I left out two sentences. Thank you. 1) I take the clothes out (and not: I take out the clothes?) 2) You mustn't speak during the lessons/during lessons/during your school hours/during your school classes. 3) You must be in class when the teacher arrives.
asked by Mike 
algebra
i do not understand how to solve for x and y can someone please explain it to me. an example of the problem i am workin on is 6x4y=72
asked by anon 
Essential Mathematics 2
The length and width of a given rectangle are 6 feet and 5 feet. What is the perimeter of the rectangle? What is the area of the rectangle?
asked by DestinyLashea 
Chemistry
The compound A1B2 (molar mass = 132) has a solubility of 13 g/L. Calculate the Ksp for this compound. I'm stuck on this question, please help?
asked by Adrianna 
Algebra
Write a direct algebraic proof to show that if a/b=c/d, then a+c=b+d
asked by Rocky 
Social Studies
What are the 5 things that every business needs to succeed?
asked by Charlie 
plays .. english
could anyone give me comedy plays that are short... i have a project and we should do a movie about a play within 15 min. any suggestions!!
asked by Anonymous 
Chemistry
Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?
asked by Katie 
dressmaking
Silk is a delicate & usually a semitransparent fabric, and a french seam would seem to be preferable to an open seam because silk does fray and the raw edges would need to be finished. Would this addition process add bulk and drag on the drape of the
asked by Kathy 
English
Thank you very much. Can you help me rephrase the last few lines, please? "Obscene as cancer, bitter as the cud Of vile, incurable sores on innocent tongues, My friend, you would not tell with such high zest To children ardent for some desperate glory,
asked by Mike 
physics
Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force exerted by the table on the rod as it makes an angle θ = 49.6° with respect to the vertical. b) If the rod falls onto the table without
asked by please help!!!! 
math
The table shows the amount of marbles brandon has in each bag. Brandon's Marbles bag) 1,2,3,4,5,6 marbles)12,11,12,20,21,20. What is the range?
asked by melissa 
FRENCH/Sra JMcGin
Bonjour! Pourriezvous me dire, s'il vous plait, quelle de ces phrases et correct? Je veux dire: " it has been two years since we were there" 1) Il y a deux ans que nous y étions 2) Il y a deux ans que nous étions là 3) Il a été deux ans depuis que
asked by E.G. 
pre algebra
Two 6sided dice are rolled. Find the odds of rolling s sum that is a prime number
asked by Anonymous 
English
Can you please check these sentences? It's really urgent. 1) At school I mustn't cheat during a test (also tests?). 2)When I do the washingup, I have to put the dishes into the dishwasher, then put the washingup gel (powder) into the dishwasher, start it
asked by Mike 
English Honors  Tale of Two Cities
Hello, I can't figure out the significance of the quote in Tale of Two Cities: "Drive him fast to his tomb". I know it signifies the beginning of the revolution but I'm not sure why.
asked by Martha 
PreCal
Write each expression in problems 1 to 3 in the form a + bi. 1. (83i)+(6+2i) 2. 4/(2i) 3. (32i)^3 I do not understand at all where to start. I tired looking on google to find a way to solve but I didn't get any real help. So please help me!
asked by PreCal 
math
if an angle has 40DEGREES and 80 dgrees what is the missing number?
asked by joyce 
chemistry
Suggest a technique the student could try to reduce the concentration of the 12 M solution.
asked by sam 
math
a boat travels 4 km upstream and 4 km back. the time for the round trip is 9 hrs. the speed of the stream is 2 km/hr. What is the speed of the boaty in still water?
asked by Anonymous 
Chemistry
How many milligrams of oxygen sre in a 4.00L bottle of the gas at STP?
asked by SusieQ 
Chemistry
How many moles of N2 can be in a balloon with a volume of 6.00 L at STP?
asked by SusieQ 
Chemistry
What pressure, in atmospheres, is exerted by 0.120 mol of steam (water vapor) at its boiling point of 100.degrees C if the volume is contained in a 2.00L teakettle?
asked by SusieQ 
English
Need to decide which form is needed:present participle, past, past participle of each verb in parentheses. 1. Nora (see) the toy exhibit at the museum. ANSWER=Seen 2. People (speak) French in parts of Canada. ANSWER=spoke 3. That character has (say) "Good
asked by Ann 
Math
Find the length of VR, the direct distance across the river, to the nearest tenth.
asked by William 
Math
What is the equation for the sequence 1, 2, 1/4, 8, 1/16, 32,......
asked by Carl 
Science
How many Newtons of force are neede to lift 20 50lb bags of sand??
asked by Alizha 
calculus
A company wants to bid on an order of 20,000 square based boxes which hold 5 cubic feet. The cardboard cost is $.15 per square foot. The boxes must be reinforced with an extra layer of cheaper cardboard on the bottom ($.12 per square foot). The box is held
asked by Shannon 
Physics
Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.
asked by Alice 
Math
How would I solve this...I don't get it. Two solutions of an equation are (6,5) and (8,5). What could the equation be?
asked by Tim 
FRENCH  repost
Pourriezvous me dire, s'il vous plait, quelle de ces phrases est correct? Je voudrais dire: "It has been two years since we were there". 1) Il y a deux ans que nous y étions. 2) Il y a deux ans que nous étions là. 3) Il a été deux ans depuis que nous
asked by E.G. 
math
find the vertex, the line of symmetry, the max or min value of f(x)=2x^28x+16
asked by jr 
algebra
find the slope and the yintercept f(x)=10x9
asked by bianca, pleeease help i'm lost 
AP Chemistry
A mixture of aluminum and zinc metal is used in 2 experiments described below: A A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg
asked by Kate 
algebra
solve by the subtraction method 5x+6y=0 x=348y
asked by bianca last one I promise 
French
I love all the painters J'aime tous le peintres. Have I written it correct?
asked by Karley 
physics
If we instead used 90 g of steam, how much of the 200 g of water would have turned into 100° C steam in the end?
asked by Anonymous 
italiancollege
Ciao! can you please check my italian essay? Im only in italian elements II so its a little rough and I don't know a lot of vocabulary. below is the prompt: Racconta le vacanze più belle della tua vita heres is the essay Mi piace la clima freddo però, mi
asked by Talia 
chemistry
what is the ph of a 2.0M solution of a strong acid?
asked by emmanuel 
math
Kate is a veterinarian.she has 9 liter bottles of a common liquid medicine for cats.she carefully measures 90 milliliters of the medicine into a smaller bottle and labels the bottle with each cats name.How many smaller bottles of 90 ml each she make from
asked by santos 
geometry
Two cords are equally distant from the center of two congruent circles draw three conclusions?
asked by Anonymous 
Math
What is the least common multiple of 15, 34, and 55?
asked by Anonymous 
science
only some light passes through
asked by Anonymous 
Chem ap
What happens to cell potential as temperature decreases? Please explain
asked by boots 
chemistry
HOW MANY LITERS OF H2 must react to produce 75.0g of PH3
asked by jane 
english
What are the nouns and verbs in this sentences. Trust in the Lord with all your heart. Do not depend own understanding.
asked by wendy 
CHEMISTRY (URGENT!!!!)
What is the Keq of NaOBr dissolving in water if the Ka of HOBr dissociating is 6.4*10^6
asked by Hannah 
English
What is a principals report?
asked by Joseph 
Hcs341
Explanation of why training and education are vital in health care Explanation of the importance of measuring competencies Description of the process for tracking and evaluating training effectiveness
asked by Ari 
math
the perimeter of a square is 32 inches.what is the area.
asked by santos 
English 101
I am pretty good at writing papers, but poetry is my weakness. I have to read "For C" by Richard Wilbur and I am having the hardest time analyzing it. Please help me!
asked by Aly 
math
At kenneht's school, tickets for a concert were sold at the rate of 40 per halfhour. how many tickets will be sold in 7 hours?
asked by marie 
math
a square with perimeter 5 less then the area. perimeter and area equal 45
asked by lily 
Algebra
Can someone please help me with this? I'm not looking for the answer, just a detailed explanation on how to solve this. Thank you in advance. Solve: 16(t  1) + 10 > 8(t +2) + 4(t  1) + 4t
asked by Lace 
algebra
(9,2),(1010) find the slope if it exists
asked by bianca, pleeease help i'm lost 
college
Find the x and y intercepts and graph 9x + 8y = 72. Graph the points.
asked by charmain 
Math Help
a to the 9 power b to the 3 power / a to the 7 power b to the 8 power.( a^8b^8/ a^7b^8)
asked by Nate 
Principle of economic
The quantities of orange supplied by a producer in a week is shown below 12,6,7,3,15,10,18,9 calculate the variance deviation for groupdata and ungroupdata.
asked by Cyril 
Chemistry
Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?
asked by Katie