Questions Asked on
March 26, 2011

physics
The 235kg cart in the figure starts from rest and rolls with negligible friction. It is pulled by three ropes as shown. It moves 600. m horizontally. Find the final velocity of the cart. F1 = 500N at 0 degree F2 = 500N at 40.1 degree F3 = 400N at 30
asked by ashyLerry 
Statistics and Probability
Suppose you took 1000 random samples of size 200 from the Poisson distribution with u = 5 and computed a 90% confidence interval for each sample. Approximate the probability that at least 920 of these intervals would contain the mean value u = 5. Be sure
asked by Adam HELP PLEASEEE 
calculus
sketch the curve of y=x1/x^2x6
asked by Anonymous 
calculus
sketch the curve of y=x1/x^2x6
asked by Anonymous 
Chemistry
What mass of octane must be burned in order to liberate 5510 kJ of heat? ΔHcomb = 5471 kJ/mol.
asked by nicole 
a and p 2
What is the most dramatic metabolic change that occurs with fasting?
asked by lisa 
math
3x=13x=96 6x11x=136 6.4x2.3x=65.6
asked by susan 
hypothesis testing
A researcher asks whether attending a private high school leads to higher or lower performance on a test of social skills when compared to students attending public schools. A sample of 100 students from a private school produces a mean score of 71.30. The
asked by Beverly 
English 101
I am writing an Argumentative research paper but I am not sure how I will create a topic sentence for the opposion position argument?
asked by John 
chemistry
What is the molarity of Cl− ions at the stoi chiometric point? Answer in units of mol/L.
asked by paul 
math
how do you write 26th march 2011 in 5 letters without using number?
asked by maharaj 
economics
What are the components of aggregate expenditure? In the model developed in this chapter, which components vary with changes in the level of real GDP? What determines the slope of the aggregate expenditure line?
asked by kwame kinker 
chemistry
to what volume should you dilute 0.100 L of a 15M NaOH solution to obtain a 1.0 M NaOH solution?
asked by eugene 
science
Water is flowing in a pipe as depicted in the figure. As shown, p = 117 kPa, d = 4.67 cm, d' = 3.06 cm, v = 4.36 m/s, and h = 1.11 m. What pressure is indicated on the upper pressure gauge? Take y = 0 at the bottom of the left pipe so that the center of
asked by Jeantel 
physics
Water is flowing in a pipe as depicted in the figure. As shown, p = 117 kPa, d = 4.67 cm, d' = 3.06 cm, v = 4.36 m/s, and h = 1.11 m. What pressure is indicated on the upper pressure gauge? Take y = 0 at the bottom of the left pipe so that the center of
asked by please help me 
chemistry
how to know if an acid is weak or strong , i simply don't understand the idea of dissolving or not dissolving completely in water ,,,,
asked by auro 
chemistry
0.1M solution of methanoic acid is found to have a ph of 2.4 at 25 degree celcius. Calculate the dissociation constant k at this temperature.
asked by Olamide 
Math
If line LM (0, 9) is congruent to line MN (0, 1) what is the order pair for point M
asked by Kay 
English
Can you please check if everything is correct? I included two paragraphs on the history of Ireland. Thank you. 1) The rebels occupied Dublin's key buildings and for some days had control of the city. The revolt, however, was put down by the British army
asked by Mike 
Social Sciences
I need to write an essay using the second amendment controversy with gun control as proof that the Bill of Rights is at an unhealthy state. I am going to focus on misleading ideologies surrounding guns and gun control and propose that proper gun education
asked by Bill 
BUS 210
Content and Development 170 Points Points Earned XX/170 Additional Comments: The student covers all key elements of the assignment in a substantive way. · Reviews the three business problems identified in Week Six paper · Develops technology solutions to
asked by Amanda 
accounting
sa traders who use the perpetual inventory system, purchased merchandise on the 1 feb 2011 form africa limited for 500. the purchase was subject to a cash discount of 5% if settled within 20 days and a trade discount of 25%
asked by Anonymous 
Physics
According to conservation of momentum, when two objects collide, the momentum lost by one object equals the momentum gained by the other. Give a commonsense, nonmathematical explanation of the connection between Newton’s 3rd law and momentum
asked by Tammy 
adding
556+555
asked by malisha 
math
Larry borrowed $12,000 from his grandfather to buy a car. He bought a used car, so, he returned $4,411 to his grandfather. Write and solve an equation using integers that shows the total amount that Larry owes his grandfather.
asked by googoo 
Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problemsolving tool than a sensemaking tool. ii. It really depends on the formula.
asked by Tammy 
computer
The following RAM chips are specified by the number of words times the number of bits per word. For each, specify: a. The number of address lines needed for each memory chip b. The number of data lines needed for each memory chip c. The number of bytes
asked by bode 
chemistry
A swimming pool, 20.0 m 12.5 m, is filled with water to a depth of 3.73 m. If the initial temperature of the water is 17.7°C, how much heat must be added to the water to raise its temperature to 28.7°C? Assume that the density of water is 1.000 g/mL.
asked by nicole 
Math
1 the mystery shape has at least 2 lines of symmetry 2 at least 1 of its diagonals is also a line of symmetry 3 it has has at least 1 obtuse angle 4 at least 3 of its angles are congruent 5 its total angle measure is between 100 degrees and 1,000 degrees
asked by Rayna 
Statistics
Hi am having trouble finding the lamda value for this question the below I tried different methods but they don't make sense. I know for everyone 25 metres theirs 1 nick. A coil of wire has 500 metres of wire. Suppose there are 20 nicks (the most common
asked by John 
Green
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner? why or how based on Ellis and LarsenFreeman(2009) and Eskilsden(2008) all make the case that second language learning emerges from usage, from a
asked by Monique 
linguistics
Give two different kinds of specific examples of transfer from an L1 to and L2? A particular grammar construction, a particular pronunciation, and a particular word meaning
asked by Monique 
linguistics
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?
asked by Monique 
physic
The amount of heat released when 100 grams of steam at 100 degrees Celsius is converted into liquid water at 100 degrees Celsius is ____ J.
asked by bode 
chemistry
1.30 grams of chromium reacts with 9.5 grams of iodine. What is the percent of chromium in this compound? How do I work out this answer. I know answer is 12.02, but can figure out how to get it! Thanks!
asked by Quick chem question 
chem101
propyl Bromide reacts with Mg, Propanone, H+ to yeild what?
asked by richard 
chemistry
Ammonium sulfate can be made by the reaction H2SO4 + 2 NH3 ® (NH4)2SO4. What quantity of ammonium sulfate will result from the reaction of 5.00 kg of ammonia and 20.0 kg of sulfuric acid?
asked by Anonymous 
business
Direct verse indirect cost Estep Construction Company is composed of two divisions: (1) Home Construction and (2) Commercial Construction .The Home Construction Division is in the process of building 12 houses and the Commercial Division is working on 3
asked by richard 
Physical Science
An aluminum nucleus has 13 protons and 14 neutrons. A copper nucleus has 29 protons and 34 neutrons. What is the force of repulsion between an aluminum nucleus and a copper nucleus when they are separated by 1.2 nm?
asked by Avery 
chemistry
To prepare the titrant fo amonia nitrogen analysis an analyst weight out 1.20 grams of concentration 98% sulfuric acid and brings to 1000 ml in lab pure water. if the molecular weight is 98 calculate the normality of the solution this analyst has prepare.
asked by Faye 
Physics
A wave of amplitude 0.30m interferes with a second wave of amplitude 0.20m traveling in the same direction. What are (a) the largest and (b) the smallest resultant amplitudes that can occur, and under what conditions will these maxima and minima arise?
asked by Anthony 
Finance
ABC Mining is evaluating the introduction of a new ore production process. Two alter¬natives are available. Production Process A has an initial cost of $25,000, a 4year life, and a $5,000 net salvage value, and the use of Process A will increase net cash
asked by Sara 
Planning
Im trying to find a budget page at education planner . ca, but I can't seem to find it. If you find it, could you please give me a link to it.
asked by Anonymous 
linguistics
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?
asked by Monique 
Rational Inequality with Absolute Value
Here's a question I'm having trouble with: x/x+2=0 and x+2>0, x must be greater than or equal to zero. When I solved for x in this case, I got x>4. Reconciling the constraints leaves me back at x>=0. Did I do that correctly? Case 2: x is greater than
asked by Randy 
physics
The figure shows a bicycle wheel resting against a small step whose height is h = 0.110 m. The weight and radius of the wheel are W = 26.0 N and r = 0.370 m. A horizontal force is applied to the axle of the wheel. As the magnitude of increases, there comes
asked by Alicia 
Writeacher  help
Erik Johnson has just become a heir to $15 000. He's 23 years old, and hes graduated frm university business program. He works as an assistant managager of retail store. He lives with his friend in a two bedroom apartment. He saves 5% of his monthly
asked by emma 
calculus
f(x)=(x+2)^3+(x1)^4
asked by critical numbers 
linguistics
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner? why or how based on Ellis and LarsenFreeman(2009) and Eskilsden(2008) all make the case that second language learning emerges from usage, from a
asked by Monique 
linguistics
Give two different kinds of specific examples of transfer from an L1 to and L2? A particular grammar construction, a particular pronunciation, and a particular word meaning
asked by Monique 
math
The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are increased by 1, the resulting fraction equals 1/2. What is the original fraction? **Need to show all work** Thanks for the help.
asked by Dylan 
Cover letter Help
Okay, so I'm trying to get a job at this grocery store. And I have some questions which I don't get how to answer. Here is an example of a cover letter I was given. (I'll post the first paragraph) Dear Manager, I am applying for the position as a
asked by Sydney 
physics help
A bar made of a particular metallic alloy has a length of 10 cm at a temperature of 24 oC and a length of 10.015 cm at the boiling point of water. (a) If a second bar made of the same material were 10 m at 24 oC, how much longer would this bar be at the
asked by sam 
physics
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 8.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very
asked by Rachel 
math
Ruth makes a scale drawing of her room. She uses the scale 3/2 in : 1 ft. In the drawing, the dimensions of her room are 18 in by 24 in. What are the actual dimensions of her room?
asked by Anonymous 
Calculator help
i have a ti 83, and i want to plug this equation r=1+cos(theta)( this is polar coordinates) into my calculator but the graph does not look right. i think i messed around with the windows or table set menu and i cant fix it. can someone tell me what numbers
asked by tom 
chemistry
Sleeping pills often contain barbital, which is weakly acidic (pKa = 8.00). For analysis of the barbital content of a sleeping pill, a titration is carried out with strong base. It takes 12.00 mL of 0.200 M base to reach the stoichiometric point. If the
asked by help 
physics
How can I convert 0.06981 radians/ sec^2 to rpm?
asked by Mark 
Physics
Two charges, 2.0 micro C and 6.0 micro C, are located at (0.65 m, 0) and (0.65 m, 0), respectively. There is a point on the xaxis between the two charges where the electric field is zero. Find the location of the point where the electric field is zero.
asked by Ben 
Linguistics
Bob: DO you want to grab a cup of coffee sometime? Sally: My boyfriend might get jealous. Select a maxim that is being flouted in this conversation. A. Quantity B. Manner C. Quality D. Relevance
asked by Ala 
MathMate
could you help me on the investment post
asked by emma 
Chemistry
1. Ca(OH)2(aq) + H3PO4(aq) à Ca3(PO4)2(aq) + H2O(l) a. If you have 13.7mol of Ca(OH)2, how many grams of H2O are produced? b. How many grams of H3PO4 are required to produce 102.3g Ca3(PO4)2? c. How many moles of Ca(OH)2 are needed to produce 82.9g of
asked by Sulon 
English
In Great Expectations, Pip is talking to the 'mysterious sailor' that is at his house. He asks the man "What floor do you want?" and the man replies "The top, Mr. Pip." What does this mean???
asked by Cecilia 
Chemistry
1. The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrofluoric acid. F2(g) + NH3(g) „³ N2F4(g) + HF(g) a. If you have 66.5g NH3, how many grams of F2 are required for complete reaction? b. How many grams of NH3 are required
asked by Sulon 
Chemistry
1. Ca(OH)2 + H3PO4 > H2O + Ca3(PO4)2 (A) How many moles of H3PO4 are needed to make 15g of H2O? (B) What mass in grams of Ca(OH)2 is used to react with 5.6mol of H3PO4? (C) How many grams of Ca3(PO4)2 are made from 134g of Ca(OH)2? 2. Fe2O3 + CO > Fe
asked by Sulon 
Math
Please let me know if I am right on these. Mystery #1. 1. The mystery shape has fewer than 3 lines of symmetry. 2. It has at least 1 pair of perpendicular sides. 3. It has at least 1 pair of parallel sides. 4. It has less than 1 obtuse angle. This is what
asked by Rayna 
poetry
I'm trying to understand the meaning of Tom Dent's poem "secret messages" (for Danny Barker). What is he trying to say? I'm thinking in the first stanza, the rain is washing away the past and "bad" history of blk mammies chained to praline shops, but past
asked by redgy 
Physics
A brick of mass 1.0 kg slides down an icy roof inclined at 30.0 degrees with respect to the horizontal. (a) If the brick starts from rest, how fast is it moving when it reaches the edge of the roof 2.00 m away? Ignore friction. (b) Redo part (a) if the
asked by Anonymous 
Texas Government
Why should judges be appointed by experts, as explained in the Missouri plan, not by the people in open elections as we do now?
asked by Susie 
Geometry
What are the formulas for the following: Volume ratio Area ratio Perimeter ratio Angle outside the Circle Angle inside the Circle Angle on the Circle
asked by Anonymous 
physics
The turbine and associated rotating parts of a jet engine have a total moment of inertia of 23 kg m2. The turbine is accelerated uniformly from rest to an angular speed of 140 rad/s in a time of 27 s. (a) Find the angular acceleration. (b) Find the net
asked by HELP!!!! 
Physics
Bruce stands on a bank beside a pond, grasps the end of a 20.0mlong rope attatched to a nearby tree and swings out to drop into the water.If the rope starts at an angle of 35.0 degrees with the vertical, what is Bruce's speed at the bottom of the swing?
asked by Work needed! 
geometry
Suppose you buy 1 ticket for $1 out of a lottery of 3,000 tickets. If the prize for the one winning ticket is to be $1,000, what are your expected winnings?
asked by Valerie 
science
what pressure is required to cause n2 to have a density of 1.00 g/L at 45 C?
asked by bianca 
Physics
You are on the Moon and would like to send a probe into space so that it does not fall back to the surface of the Moon. What launch speed do you need?
asked by Work needed! 
physics
A 27kg boy stands 4 m from the center of a frictionless playground merrygoround, which has a moment of inertia of 238 kg m2. The boy begins to run in a circular path with a speed of 0.6 m/s relative to the ground. (a) Calculate the angular velocity of
asked by Nick 
Physics
A block of wood is compressed 2.0 nm when inward forces of magnitude 120N are applied to it on two opposite sides. (a) Assuming Hooke's law holds, what is the effective spring constant of the block? (b) Assuming Hooke's las still holds, how much is the
asked by Work needed! 
calcus
determine domain, intercepts, asymptotes, intervals of increase and decrease, and concavity, and to locate any local extrema and point of inflection.
asked by Anonymous 
physics
A demonstration gyroscope consists of a uniform disk with a 37cm radius, mounted at the midpoint of a light 61cm axle. The axle is supported at one end while in a horizontal position. How fast is the gyroscope precessing, in units of rad/s, if the disk
asked by zack 
Physics
The length of a spring increases by 7.2 cm from its relaxed length when a mass of 1.4 kg is hanging in equilibrium from the spring. (a) What is the spring constant? (b) How much elastic potential energy is stored in the spring? (c) A different mass is
asked by Work needed! 
science
what does an experiment prove /or disprove?
asked by maria 
Physics
You shoot a 51g pebble straight up with a catapult whose spring constant is 320N/m. The catapult is initially stretched by 0.20m. How high above the starting point does the pebble fly? Ignore air resistance.
asked by Work needed! 
Physics
A motorist driving a 1200kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.0s. Neglecting friction and air resistance, determine the average mechanical power in watts the engine must supply during this time interval.
asked by Work needed! 
Physics
A top fuel drag racer with a mass of 500.0 kg completes a quartermile (402m) drag race in a time of 4.2s starting from rest. The car's final speed is 125m/s. What is the engine's average power output? Ignore friction and air resistance.
asked by Work needed! 
Physics
A spring with k=40.0 N/m is at the base of a frictionless 30.0 degree inclined plane. A 0.50kg object is pressed against the spring, compressing it 0.20m from its equilibrium position. The object is then released. If the object is not attatched to the
asked by Work needed! 
Lingusitics
"It is a widely held view in syntax that the constituents we have been calling noun phrases (NPs) are actually determiner phrases (DPs). In this view, all nouns are inside a DP, and if a sentence does not have an overt determiner, the head of DP will be a
asked by Gundu 
physics
You 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 Really stuck in this problem !! 
maths
Find the slope and the y interceft of each line whose equation is given  4x +y = 7 write a point slope equation for the line with slope that contains the given point. m =  5/4,x(2,6)
asked by ngo 
Math
A contractor is considering a sale that promises a profit of $30,000 with a probability of .7 or a loss of $4,000 with a probability of .3. What is the expected profit?
asked by Valerie 
Physics
Two converging lenses with focal lengths 5 cm and 30 cm are placed 35 cm apart. Rays from a very distant object are impinged on the lens system parallel to the principal axis. What is the refractive power of the combination of these two lenses?
asked by Abby 
Math
Make a table to display your answer. When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT
asked by Valerie 
calculator
how do you find the integral on a ti 83 calculator?
asked by lois 
Lingusitics
Hello everyone!! For these six sentences, I have to explain what determines whether the sentence is grammatical or not 1) Both the students were studying. 2) The students were both studying. 3) They were both studying. 4) *Both they were studying. 5) Both
asked by Bobby 
Math
In how many ways can 7 people line up for plane tickets?
asked by Valerie 
physics
A .50kg ball is rolling on a frictionless surface at a speed of .75m/s. it collides with a second ball with a mass of 1kg which is also moving in the same direction as the first ball with a speed of .38m/s. After the collision the firt ball continues at a
asked by Mari 
science
Which organ sterilizes ingested food
asked by kathi 
Spanish
Can you please help me with this question. 1.Select the correct form for the verb escribir: He doubted the prince wrote stories for children. Dudaba que el principe __ cuentos para ninos A.escribe B.escribia C.escribiera D.escribio
asked by anon 
Math
How many ways can 5 people be arranged in a straight line if there are 12 people to choose from
asked by Valerie 
science
Which organ sterilizes ingested food? Salivary glands, Stomach, Pancreas, or Liver Thankyou!
asked by kathi 
Math
What is the vertical asymptote of the graph of y=log4(x3) ?
asked by Diamond 
math
how do you use pascals triangle in everyday life or nature?
asked by kaykay 
French
I am saying... Put them to bed at 9:00. I don't know wether to use leurs or Les. I have Metsleur au lit a 9h00. Is it indirect or direct because if it is direct I think I would use Les but idk if it is.
asked by Hannah 
phi 103
The second level of argumentation, where generalizations can be found in the form of public opinion polls, ratings for television and radio stations, and research surveys. (Points : 1)
asked by liz 
Physics
I'm totally confused and this is due Monday We're dealing with electrical circuits and I have to construct a circuit with resistors of 10 Ohms, 20 Ohms, 30 Ohms and 20 Ohms. The total resistance has to be 42 OhmsCan someone direct me how to even begin to
asked by Aubrey 
Chemistry
A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 1.9 x 10^11 for Mg(OH)2 and Ksp = 6.0x10^26 for Sn(OH)2. What [Sn2+] is required so that the [Mg2+] in solution will be 0.15 M?
asked by Nikki 
Bio  Reproductive Organs
Is this true? The oocyte is moved through the fallopian tubes by peristaltic contractions of the muscular layer >>> I feel as though this may be correct but I'm not too sure AND The outer layer of the fallopian tube is formed by the ampulla >>> I feel like
asked by Lena 
Busn 380
if we invest $8000.00 that pays $500.00 annually, but then decreases in value to $7000.00 by the end of the year, what is our rate of return?
asked by luara 
Chemistry
I'm having trouble giving the formula for this coordination compound: sodium diamminetetrachloroplatinate(IV) I think that it has to have a charge because it has Na+ and [Pt(NH3)2Cl4] (which is neutral), but Na[Pt(NH3)2Cl4]+ is wrong. Please help!
asked by nikki 
Childhood education
What can a teacher do to reinforce the primary relationship between the parent and the child and to communicate that the teacher does not desire to take the parent's place in the child's life
asked by Toro 
geometry
Is it possible for AB = 10, BC = 2x + 5 and AC = 5x, given that point B is the midpoint?
asked by Misty 
sodium tetraborate
How is the mass of sodium tetraborate related to the amount of stretch in slime? I was doing some googling and I came across something that had to do with crosslinking but I didn't really understand it. Could someone explain why the slime gets more or
asked by Lena 
trig
ABC is an isoscele triangle in which [AB]=[AC]=5cm and [BC]=6cm. Calculate [AM], where M is the midpoint of BC.
asked by ezendu 
math
find an exponential function of the form P(t)yoe^kt to model the given; In 1995, the number of female athletes participating in Summer OlympicsType Games was 550. In 1996, about 3550 participated in the summer olympics in ATlanta. Assuming that P(0)= 500
asked by anonymous 
Math
If each angle of a regular polygon measures 140 degrees, how many sides does it have?
asked by Valerie 
logarithm
So I have to an expression as the logarithm of a single number or expression with a coefficient of 1 9log w+ 4log z log(x5) my answer is: log w^4*z^9/(x5).. is this right? thanks in advance!
asked by anonymous 
chemistry
what volume of nitrous oxide gas N2O has the same number of atoms as 9.0 liters of neon gas at the same temperature and pressure
asked by matt 
Childhood education
What does research show about the child's relationship with the primary parental figure when the child has additional attachments to other people.
asked by Olu 
statistics
if we know that 50% of the customers that shop at the florist in a particular town are male(the probability of any given customer at the florist being a male is 0.50),find the probability that more than 20 but less than 30 of the next 50 customers are
asked by kita 
science
what must be the genotypes of their children?
asked by xavier 
Discrete Math
Find f(1), f(2), and f(3) if f(n) is defined recursively by f(0) = 1 and for n = 0, 1, 2, . . . • f(n+1) = f(n) + 2 So, would it be f(n) = f(n+1) + 2? Or would I just keep it like the original and plug in 1, 2, 3. Thanks for any helpful replies.
asked by Francesca 
geometry
The diagonal of a rectangle measures 26 cm the width of the rectangle is 24 cm find the length of the rectangle.
asked by Chelle 
math
Simplify. Please be sure to show all of your work. 9424*22/5*1/2
asked by Anonymous 
HCR 230
Write a medical office financial policy for Part A of your final project.
asked by Anonymous 
english, Writing in the Vernacular: Burns
I just want to get a better understanding of this. I need help badly. 1. What mood does the dialect in “To a Mouse” and “To a Louse” by Robert Burns convey? a. longing and evocative b. proud and provocative c. cheerful and downtoearth 2. Using
asked by Jesicca 
Linguistics
Determine whether the following are entailment, presupposition, or both. 1) (A) Mary murdered the platypus (B) Mary killed something Is the answer: (a) entails (b) OR (a) presupposes (b) OR both 2) (A) John is taller than Mary (B) Mary is shorter than John
asked by Marcella 
management,subject please help me asap
please can you help me to differentiate and compare the followinr process.i really could not have the right idea this question. synthetic vs. fabricating process
asked by jessie 
math
Solve 6(52z)+5z=8z3(163z) . Please show all of your work.
asked by Anonymous 
chemistry
Hi, I can't figure out how to start this one. I know I need to figure out the proportions or something of that sort. Any help is greatly appreciated Thanks! Calculate ƒ¢H for the reaction NO(g) + O(g) ¨ NO2(g) given the following: NO(g) + O3(g) ¨
asked by anna 
Chem
H2SO4 +NaCO3 > Na2SO4 +Co2 +H2O if 150.0 g Of Sulfuric acids is spilled what is the minimum number of moles of sodium carbonate to complete this reaction?
asked by Jenna 
Physics
A brick of mass 1.0 kg slides down an icy roof inclined at 30.0 degrees with respect to the horizontal. (a) If the brick starts from rest, how fast is it moving when it reaches the edge of the roof 2.00 m away? Ignore friction. (b) Redo part (a) if the
asked by Physics 
History
Why was Athens the most important city of ancient Greece?
asked by Ann 
trig
y = 3sec3x Amplitude =_________ Period = __________ Shift along x = ____________ Shift along y = _____________ Kind of reflection = ______________
asked by ryan 
Math
How much did you invest at 8% simple interest if 12 months later the investment is worth $1,945?
asked by Tracy 
Ma
How much did you invest each month at 6.10% compounded monthly if 10 years later the investment is worth $57,670.12?
asked by Morgan 
Mensturation
I have a question. In my anatomy textbook it says that during menstrual cycle, the epithelial cells of the endometrium are shed. Are germinal epithelial cells the same thing?
asked by Lena 
Math
If you invest $9,000 at 6% compounded biweekly, after how many years, rounded to .01, will your investment be worth $14,536.63?
asked by Jackie 
Chemistry
A student titrated a solution containing 3.7066 grams of an unknown triprotic acid to the end point using 28.94 milliliters of 0.3021 M KOH. What is the molar mass of the unknown acid? And write a balanced equation for the reaction.
asked by Cassie 
History
Was there anything significant that happened in Sparta? Were they important?
asked by Ann 
math
write seven names for 8.use only numbers less than 10,and use at least 3 different operatins in each name.use parentheses.
asked by mathurine 
The Nephron
Concentration and volume of urine depend on H2O reabsorption where in the nephron? a) ascending loop of Henle b) descending loop of Henle c) distal convoluted tubule and collecting duct d) proximal convoluted tubule >>> I think the answer is C but I'm not
asked by Lena 
Chemistry
Why is it important to swirl the NaOH solution each time before using it during a titration?
asked by K 
Math
How much did you invest at 9% compounded biweekly if 10 years later the investment is worth $54,000?
asked by Megan 
Biology  The Bladder
What is the trigone of the bladder bounded by? a) top of fundus and uretal orifices b) major and minor calyces c) orifices of ejaculatory ducts and urethra d) uretal and internal urethral orifices
asked by Lena 
Physiks
You shoot a 51g pebble straight up with a catapult whose spring constant is 320N/m. The catapult is initially stretched by 0.20m. How high above the starting point does the pebble fly? Ignore air resistance.
asked by Anonymous 
math
MathMate attempted to help but did not show how the problem is answered. It only confused the problem. Could someone else please help? Thanks. The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are
asked by Dylan 
math
if 2/3 of a dozen eggs broke how many eggs broke?
asked by Anonymous 
math
If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.
asked by Brandon 
chemistry
N2(g) + O2 (g)= 2NO(g) if the temperature is constant and the pressure increases the number of miles of NO(g) will decrease, increase or remain the same
asked by sashaa 
physics
A 27kg boy stands 4 m from the center of a frictionless playground merrygoround, which has a moment of inertia of 238 kg m2. The boy begins to run in a circular path with a speed of 0.6 m/s relative to the ground. (a) Calculate the angular velocity of
asked by Really stuck in this problem !! 
Chemistry
Would it be better to use an unknown acid sample of a size that should require 10.00 milliliters or one that would require 15.00 milliliters of titrant? Explain. I have been thinking about this question... And I don't believe it matters what measurement of
asked by K 
Science (Physics)
A motorist driving a 1200kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.0s. Neglecting friction and air resistance, determine the average mechanical power in watts the engine must supply during this time interval.
asked by Anonymous 
math
Drwls  totally confused me on how this problem is done. Can someone else help to solve this problem? If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.
asked by Brandon 
Chemistry
Titration of an Unknown Acid... What effect on the molar mass of the unknown acid would each of the following have... Would it make the calculated molar mass high, low, or would it have no effect? 1. Adding 5 drops of phenolphthalein instead of 1 drop...
asked by K 
Chemistry
Why is it important to keep the NaOH solution (being used during titration) stoppered at all times when it is not in use? And why is it all right to use a wet flask for a titration experiment?
asked by Cassie 
Chemistry
H2C2O4 * 2H2O (s) is a primary standard substance. 2.3688 grams of oxalic acid dihydrate were completely neutralized by 42.56 milliliters of NaOH solution. Calculate the molar concentration of the NaOH solution.
asked by Cassie 
statistics
A study of checkout lines at the Safeway revealed that between 47pm on weekdays there is an average of 4 customers waiting in line. What is the probability that you visit that Safeway during this time period and... 1no customers are waiting in line?
asked by kim 
math
what is the number in the blank? 5,13,29,61,125?
asked by cindy 
math
round 359,641 to the nearst 1,000
asked by cindy 
statistics
An auditor of Health Maintenance Services reports 40 percent of policyholders 55 years and older submit a claim during the year. Fifteen policyholders are selected at random for company records. a)how many of the policyholders would you expect to have
asked by kim 
math
name all the properties to a equilateral traingle and a obtuse triangle
asked by cindy 
math
what is $15,000 more than $1,275,000
asked by cindy 
math
write 4 and2/5 as a improper fraction.[fraction greater than 1]
asked by cindy 
math
write 28/6 as a mixed number.
asked by cindy 
math
erin ate 1/4 of her cookies for snack .she had 18 left in her bag.how many did she have in the bag before she ate her snack?
asked by cindy 
math
f $20,000 is invested in a savings account offering 3.5% per year, compounded continuously, how fast is the balance growing after 4 years? (Round your answer to the nearest cent.) $ 1 per yr
asked by LA 
math
erin ate 12 more cookies what is the fraction total she has eaten now??????????
asked by cindy 
math
what is the precentage erin has now?
asked by cindy