Questions Asked on
February 26, 2011

physics
The drawing shows an extreme skier at bottom of a ski jump. At this point the track is circular with a radius r. Two forces act on the skier, her weight mg and the normal force FN. Which relation describes how the net force acting on her is related to her
asked by annie 
AP Physics
15. A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0 with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s2. If the coefficient of kinetic friction
asked by jeff 
math
Numbered disks are placed in a box and one disk is selected at random. There are 6 red disks numbered 1 through 6, and 7 yellow disks numbered 7 through 13. In an experiment a disk is selected, the number and color noted, replaced, and then a second disk
asked by Anonymous 
chem
Which of the following compounds would be expected to form intermolecular hydrogen bonds in the liquid state? (Select all that apply.) HCO2H CH3OCH3 (dimethyl ether) CH3CO2H (acetic acid) CH3OH (methanol) thanks:)
asked by Rebekah 
calculus
please help. Compute Δy and dy for x = 4 and dx = Δx = 0.2. (Round the answers to three decimal places.) y = 4x  x2....im lost to were to start solving for delta y
asked by nic 
Chemistry
Which of the following aqueous solutions are good buffer systems ? . 0.26 M hydrochloric acid + 0.24 M potassium chloride . 0.14 M acetic acid + 0.20 M potassium acetate . 0.16 M potassium hypochlorite + 0.23 M hypochlorous acid . 0.31 M hydrocyanic acid +
asked by Chris 
statistics
The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second quartile for this data set?
asked by josh 
calculus
Use analytic methods to find the global extreme values of the function on the interval and state where they occur. y=x(2x)^(1/2), 2
asked by Jocelyn 
Math
A manufacturer estimates that the profit P from producing x units of a commodity is P=x^2+40x100 dollars per week. What is the maximium profit he can realize in one week? I was going to take the derivative of the equation and set it equal to 0 and then
asked by Hannah 
chemistry
105 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.3, what is the mass of the steel bar?
asked by shannon 
chemistry
"A 280ml flask contains pure helium at a pressure of 754 torr . A second flask with a volume of 475ml contains pure argon at a pressure of 732 torr . If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial
asked by T 
physics
A 84 kg diver steps off a 10 m tower and drops from rest straight down into the water. If he comes to rest 4.7 m beneath the surface, determine the average resistance force exerted on him by the water.
asked by floyd 
statistics
in a distribution of scores with a mean of 1500 and a standard deviation of 250, what is the 95th percentile?
asked by Ruben 
AP Physics
A student weighing 700 N climbs at constant speed to the top of an 8 m vertical rope in 10 s. The average power expended by the student to overcome gravity is most nearly 1. P = 560 W. 2. P = 87.5 W. 3. P = 5, 600 W. 4. P = 1.1 W. 5. P = 875 W.
asked by jeff 
AP Physics
22. a)You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 2.19 m and the cannon is aimed at a 32
asked by jeff 
physics
Calculate the gravitational force between the Sun and Neptune. The mass of the Sun is 1.99×1030 kg. The mass of Neptune is 1020×1023 kg. The distance between them is 450×1010 m.
asked by Jane 
physics
How will you find the height of a tall tower using a longenough thread? You only have a stopwatch with you. So you can only measure time and not length. Explain the method by stating the formula you will use to calculate the height of the tower.
asked by calous  HELP PLEASEE!!! 
Environmental engineering
The company you work for plans to release a waste stream containing 7 mg/L of benzaldehyde . Assuming that benzaldehyde degrades according to the reaction: C7H6O + 8O2 → 7CO2 + 3H2O Calculate the theoretical carbonaceous oxygen demand of this waste
asked by Jazmin 
statistics
Suppose a basketball player successfully makes 70% of the free throw shots they attempt. Let X represent the number of successful attempts in 120 independent attempted free throws. (A) What is the true probability distribution of X? (B) Find the mean and
asked by Adam 
operations management
A critical dimension of the service quality of a call center is the wait time of a caller to get to a sales representative. Periodically, random samples of 6 customer calls are measured for time. Results from the last five samples are shown in the table.
asked by Anonymous 
physics
free fall on the moon is 1.62m/s2 What is the lenght of the pendulum whos period on the moon mtches the period of 1.80m long on Earth?
asked by pam 
Physical Science
A stationary but moveable 450kg cannon is fired and the 12kg cannonball moves off to the right with a velocity of 20.0 m/s. What is the connon's velocity (both magnitude and direction) due to the kickback from the firing?
asked by Tina 
physics
Which of the following statements is not true about a particle executing Simple Harmonic Motion? Choose one answer. a. Its velocity is maximum at the equilibrium position. b. Its acceleration depends only upon its displacement at that instant. c. Its
asked by calous  HELP PLEASEE!!! 
chemistry
how wold you prepare 2.00L of 1.00M HCl solution using 6.00 M HCl? i already found the volume of 6.00M HCl needed to be .333L. i am confused about how to actually prepare the solution. do i used a volumetric flask or any other glassware?
asked by lindy 
Physics
A cyclist coasts up a 10.3° slope, traveling 17.0 m along the road to the top of the hill. If the cyclist's initial speed is 9.90 m/s, what is the final speed? Ignore friction and air resistance. Any help would be great.
asked by Ryan 
Calculus
The area a meadow was approximated by measuring the length of the meadow at 30foot intervals. THe distances measured across the meadow were 76 ft, 118 ft, 130 ft, 143 ft, 139 ft, 136 ft, 137 ft, 139 ft, 130 ft, 122 ft, and 60 ft. Use Simpson's Rule to
asked by Lena 
Algebra
Jennifer takes a job with a starting salary of $39,000 for the first year with an annual increase of 5% beginning in the second year. What is Jennifer's salary, to the nearest dollar
asked by amber 
Math
which of the following graphs could represent a function with the following 3 properties? 1) f(x)>0, for x0 would mean that the graph is above the x axis, and f'(x) is less than or equal to 0 would mean that the slope is negative. Is this correct?
asked by Hannah 
algebra2/trig
tina can paint a room in 8 hours, but when she and her friend emily work together, they can complete the job in 3 hours. how long would it take emily to paint the room alone?
asked by jackie 
Physics
A 91 kg man lying on a surface of negligible friction shoves a 75 g stone away from himself, giving it a speed of 4.0 m/s. What speed does the man acquire as a result?
asked by William 
physics
Cloverleaf exits are approximately circular. A 1256 kg automobile is traveling 58 mph while taking a cloverleaf exit that has a radius of 35.4 m. Calculate the centripetal acceleration of the car and the centripetal force on the car. Remember that 1 mph =
asked by mac 
Government
With regard to public opinion, the Supreme Court a. ignores it completely in order to make decisions that are based on enduring values rather than the public’s passing whims. b. remains uninformed about it because justices stay on the bench for life and
asked by Anthony 
Calculus
let d2y/dx2= 6x. Find a solution to the differential equation that is continuous for negative infinity to positive infinity and whose graph passes through the point (0,1) and has a horizontal tangent there.
asked by Anastasia 
Calculus
Use a graphing calculator to graph f(x)=x^46x^3+11x^26x. Then use upper sums to approximate the area of the region in the first quadrant bounded by f and the xaxis using four subintervals.
asked by Catalina 
physics
A mass on a string of unknown length oscillates witha period of 6.0s What is the period if the mass is doubled?
asked by pam 
math
if you have 15 coins in a bag and their total amount is $2.70 how many quarters and dimes are in the bag? Use substitution to solve
asked by mary 
statistics
On one 100point test, Lisa managed to get 74 points. On a separate 100point test, Paul managed to get 74 points. But when these scores were converted to z scores, Lisa received 1.25 and Paul received 1.30. Which of these students received a higher
asked by Crystal 
chemistry
What intermolecular force(s) must be overcome to do the following. (a) sublime ice hydrogen bonding dipoledipole interactions (not hydrogen bonding) induceddipole/induceddipole forces iondipole force You can choose one. Can some one please explain. I
asked by Rebekah 
Geometry
The measure of the supplement of an angle is one fourth the measure of the angle. What is the measure of each angle?
asked by Thomas 
ap Physics
1. a)A 15.6 kg block is dragged over a rough, horizontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234.Find the work done by the
asked by jeff 
chemistry
Calculate the H3O^+ and OH^ ion concentrations in a solution that has a pH of 3.72.
asked by Maria 
HELP PLEASE
I have to submit a complaint on any advertisment which I think should be banned And it should be one that you feel violates any clause of the Canadian Code of Advertising Standards or the Gender Portrayal Guidelines. Write a letter of complaint following
asked by Anonymous 
AP Physics
The initial kinetic energy imparted to a 0.72 kg bullet is 1777 J.The acceleration of gravity is 9.81 m/s2. Neglecting air resistance, find the range of this projectile when it is fired at an angle such that the range equals the maximum height attained.
asked by jeff 
Calculus
Find the area in the second quadrant bounded by the xaxis and f(x)=sqrt((x^3/8)+1)
asked by Hannah 
Calculus
Transportation engineers use traffic flow data to design the timing of traffic lights at intersections. At a certain intersection, the traffic flow, F(t), is modeled by the function F(t)=82+4sin(t/2) when 0¡Üt¡Ü30 minutes, where F(t), in vehicles per
asked by Jemima 
SCI
at room temperature, all samples of liquid water must have the same...
asked by Cordal 
Math
A clown was shot out of a cannon at ground level. Her height above the ground at any time (t) was given by the function h(t) = 15t2 + 15t What was height at t(1), t(2),and t(3)? The flight will last how many seconds??
asked by Bob 
Physics
An electric power plant that would make use of the temperature gradient in the ocean has been proposed. The system is to operate between 20.0°C (surface water temperature) and 5.00°C (water temperature at a depth of about 1 km). The first question asks
asked by Z32 
AP Physics
27. a)In the 1950’s, an experimental train that had a mass of 32800 kg was powered across a level track by a jet engine that produced a thrust of 4.37× 10^5 N for a distance of 465 m.Find the work done on the train. Answer in units of J. b)Find the
asked by jeff 
College Chemistry
Determine the pH of a solution that contains 5.3*10^2 M in HClO4 and 3.0*10^2 M in HCl?
asked by Mickey 
Math Help
1) 1+cos(3t)/ sin(3t) + sin(3t)/( 1+ cos(3t))= 2csc(3t) 2) sec^2 2u1/ sec^2 2u= sin^2 2u 3) cosB/1 sinB= secB+ tanB
asked by suzi 
math
Solve the problem. 31) For a party, Mary has to bake 5 cakes, 3 pies, and 4 trays of cookies. One cake requires 2.5 cups of flour, one pie requires 1.25 cups of flour, and one tray of cookies needs 0.75 cups of flour. How much flour in all does Mary need
asked by Anonymous 
physics
A horizontal force of magnitude F = 110 N is used to push a box of mass m = 6 kg from rest a distance d = 16 m up a frictionless incline with a slope q = 28°. a) How much work is done by the force on the box? b) How much work is done on the box by the
asked by Lyla 
Chemistry
what mass of carbon dioxide is produced by the combustion of 50.0 g of propane
asked by Anonymous 
physics
A particle vibrates in Simple Harmonic Motion with amplitude. What will be its displacement in one timeperiod if you attach a mass to the spring from its initial equilibrium position, it vibrates forever in simple harmonic motion. Why doesn't it come to
asked by calous  HELP PLEASEE!!! 
chemistry
an insoluble precipitate was formed when a solution of 1.000 L of 0.750 M sodium carbonate (Na2CO3) was mixed with .5000 L of 1.50 M solution of iron (III) nitrate (Fe(NO3)3). what is the concentration of all ions present after the reaction is complete?
asked by mel <3 
Math
If a student's percentile rank in a class of 400 students is 87, how do I find the student's class rank.
asked by David 
World Lit.
are the female characters victims or natural survivirs and do they deserve more pity or admiration? in Candide
asked by ricki 
statistics and probability
It is known that an exam scores of students in STAT 2507 follow a normal distribution with a mean of 70% and a standard deviation of 9%. (A) If a student must obtain a mark of 50% to pass the exam, what proportion of students fail the exam? (B) What is the
asked by Adam 
FRENCH BANGS
Bangs really confuse me:( Could I get a few notes on them please, I already checked the internet. B stands for beauty A stands for age N stands for number G stands for goodness S stands for size These are all adjectives, what confuses me is that are they
asked by Sidney 
chemistry
What would be the pH of 0.568 g of HClO4 per 250 mL of solution?
asked by Vaneza ASAP 
Accounting
Cambridge Manufacturing Company, Inc. has 200 laborhours available. There is no limit on machine hours. Cambridge can sell all of Product B that it wants, but it can only sell 30 units and 20 units of Products A and C, respectively. ProductA ProductB
asked by Gail 
Definitions
Is there a good website other than Wikipedia that has a good and brief definition of the words, "social justice"? I have to define it in my own words.
asked by Alex L. 
algebra 1 sequences
Year 2003 2004 2005 2006 Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the preceeding year. Round to the two decimal places and show the Texas population increase that is approximately geometric. 1.01 B.
asked by amber 
ALGEBRA
Find an equation in slopeintercept form passing through the points (2,5) and (7,3). M=(3,5)/(7,2) M=8/5 IS THE SLOPE [Y=MX+B] 5=8/5*2+B 5=16/5+B 5+16/5=B (25+16)/5=B 41/5=B THE Y INTERCEPT Y=8X/5 +41/5 HOW WOULD I SHOW A GRAPH ON THIS PROBLEM?
asked by bianca 
Biological psychology
What does mitosis produce and how?
asked by Maria 
Stats
In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
asked by Ruben 
English
Can anyone tell what is a hickory slat?
asked by Anonymous 
Trianle Fire
What was the significance of the fire which occurred on March 25, 1911 at the Triangle Shirtwaist Company in New York City? Why were public officials motivated to act in response to the fire? How did the fire and the response to the fire impact the world
asked by Anna 
maths
k(t)=3t^4/sin(4t) (0
asked by emma 
Costs and Awards
h t t p // w w w . educationplanner . ca / program . cfm?id=33362&view=details I went onto this site, and I have found the problem I want to take and what would be my insitution for that program? Website help  Ms. Sue, Sunday, February 20, 2011 at 5:23pm
asked by Anonymous 
math
12ab + 8ab + 5ab is it 25ab
asked by pavleen 
world issues
i need some detailed information about the history of any country in the world that has had major urban development. why was the site chosen? (for development)  what is the nature of the urban area?  how much population and housing is there?  where do
asked by mya 
Math
Consider a polygon ABCDE with coordinates A(0,4), B(3,0), C(7,2) , D(11,6) and E(8,15) Choose all possible pairs from below at which a maximum over the region can be attained by a non constant linear function. [(0,4),(7,2)] [(0,4),(8,15)] [(7,2),(11,6)]
asked by Melissa 
Stats
In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
asked by Ruben 
Math
What is 0.00023534 rounded to 2 decimal places? Is it 0.00024?
asked by Nursing Student 
Math
An equilateral triangle has the same sides. If one the sides measure 1.5 meters. What is it's perimeter ?
asked by Jasmine 
physics
if you attach a mass to the spring from its initial equilibrium position, it vibrates forever in simple harmonic motion. Why doesn't it come to rest after stretching by a distance 'd'; proportional to the weight of the mass, when the spring's restoring
asked by calous  HELP PLEASEE!!! 
physics
A satellite is in orbit about Earth. Its orbital radius is 7.51×107 m. The mass of the satellite is 5415 kg and the mass of Earth is 5.974×1024 kg. Determine the orbital speed of the satellite in mi/s. 1 mi/s = 1609 m/s.
asked by mac 
PHYSICS
The weight of fully saturated soil in a prism having a 4.00 sq. ft. base (or a base of 4.00 ft*ft) is 4,000 lbs. Pore pressure at the base is 499 lbs/(ft*ft). True or False: The effective stress at the base is 501 lbs/(ft*ft).
asked by dan 
Calculus
An ant moves along the xaxis with velocity given by v(t)=tsin(t^2), t is greater than or equal to zero. Given that x(t) is the position of the particle at time t and that x(0)=3, find x(2) Find the total distance traveled by the particle from t=0 to t=2
asked by Hannah 
chemistry
a solid sample of impure Ba(OH)2 is added to 400.0 mL of 0.5000 M of aqueous HBr, a strong acid. the remaining solution was acidic. it was then titrated to equivalence point with 120.0 mL of 0.5000 M of NaOH solution. what mass of pure Ba(OH)2 was present
asked by mel <3 
trigonometry (repost) Mathmate
I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the books i have (it poorly explains the subject of trigonometry let alone logarithms and antilog). Your last explanation was very
asked by Anon 
sociology
what effects of global tv programming acces from a functinalist, conflict, and inteactionist perspective.
asked by brenda johnson 
Math MDM4U
Event A represents the act of drawing a rank of eight from a standard deck of 52 cards, if B represents the event of drawing any diamond after the first card has been replaced into the deck, what is the probability of A and B.
asked by Lorrie 
HE AGE OF JEFFERSON TO THE AMERICAN EXPANSION
During Jefferson's presidency, cities were A. mainly ports for international trade. B. mostly found along the Mississippi. C. mainly industrial centers. D. mostly the haunts of thieves and degenerates
asked by Anonymous 
algebra II
Thank you for your prompt response. I have my homework I have to turn in in about 2 hours, but i am struggling to solve this question. Is there any way you can just give me the answer while I find a website that can show me step by step how to solve these
asked by esther 
reading
need to draw floor plan of my room and home I have to use my map story to show me example how do I draw my desk ??
asked by Evan 
algebra II
I would appreciate anyone's help in solving this problem.(1/4x^4+6/7x^3+1/8x^2+7) + (3/4x^4+7/8x^27). Thank you kindly.
asked by esther 
french
i need help get done a french homework. its 16 pages long, onlye grammar questions. please anyone can help me or direct me to the right direction, to get help get done this job! either for free or involving money.
asked by rahim 
Physical Science
If a 2.0kg object is initially moving with a speed of 10 m/s and a 6.0 N force were applied in the direction of the motion, what would be the acceleration?
asked by Tina 
Maths
Can someone factorise 25x^225xy+6y^2 show your work please
asked by Anonymous 
chemistry
calculate the concentration of ions present after the reaction between 13.50mL of 2.00M BaCl2 and 2.50mL of 6.00M H2SO4 i just wanted to check my answers [Ba^2+]=1.69M [SO4^2]=o.938M [H^+]=0 [Cl^]=1.50M if they are wrong please explain
asked by lindy 
Math
Can someone please help me with these three question? I having a very difficlut time answering them May first question To select a _________ sample, the population is divided into disjoint subgroups according to some characteristics like income level, and
asked by Latisha 
algebra II
please, somebody help me Divide. x^2+7x37/x+9. Please help me. I need all the help I can get. Thank you so much.
asked by esther 
algebra
A consumer electronics company sells 6.7 million MP3 players per month at a price of $100 apiece; when the price is lowered to $80, the company sells 10.2 million players per month. How many MP3 players can the company expect to sell per month at a price
asked by bianca 
chemistry
a solid sample of impure Ba(OH02 is added to .4000L of .5000M of HBr. the remaining solution was acidic, it was then titrated to equivalence point with .1200L of .5000M NaOH. what mass of pure Ba(OH)2 was present in the sample?
asked by mel <3 
trigonometry
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" I have to use logarithms and law of tangents . and then provide the check. which says law of sine or mollweids equation. I can't us the
asked by Anon 
Chemisry
How many moles of oxygen are present in 8g of oxgen gas.
asked by Abba 
Unix Script
"Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last name, first
asked by Tina 
Government
The judiciary’s status as an independent branch of the national government rests on judicial review, which grants the judiciary the authority to a. make political decisions; judges can overturn any congressional or presidential decision they personally
asked by Anthony 
algebra
Seven inches are equivalent to 17.78 cm. Find the equation converting length in cm to length in inches. What is the length in inches of a 96.2 cm bar? 17.8cm =7 in. 1cm = (7/17.78)in 96.2cm = 96.2 (7/17.78)in 96.2cm = 37.874 in can this be graphed and how?
asked by p eg 
physic
a mass 2.9kg object moving at a speed of 5.9m\s sticks a mass 0.88kg object initially at rest. immeditaly after the collision the 2.9kg object has a velocity of 0.99m/s directed 27 degree from its initial line of motion. that is the speed of the 0.88kg
asked by Anonymous 
Business Communications
A job application letter is effective in convincing the reader that an applicant is knowledgeable of the company by?
asked by Jenny 
Math
Simplfy 10^1 x 10 ^2 x 10 ^1
asked by Nicholas 
Math
Suppose that y≤5x,3x≤y and 14x+15y≤1 together with 0≤x, 0≤y. The maximum value of the function y+x on the resulting region occurs at x=? and y=? The maximum value of the function is ?
asked by Paul 
Math
A diet management system produces two types of foods A and B. Food A contains (5,15,1,2) mg. per ounce of cholesterol, calcium, iron and vitamin C respectively and Food B contains (5,15,1,2) mg. per ounce of the same nutrients in order respectively A
asked by Tracy 
Physics
A 3.60 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.80 m, before compressing a spring of force constant 2.30*10^4 N/m. Find the maximum compression of the spring. Any help would be appreciated, this
asked by Ryan 
Physics
An 8.00 kg block is placed on a rough horizontal surface and connected to a spring of spring constant 100 N/m. The spring is then stretched by some distance A and released. The block will begin to oscillate back and forth across the surface. As the block
asked by Trish 
Accounting
Ferguson Company was started in 2008 when it acquired $60,000 from the issue of common stock. The following data summarize the company's first years' operating activities. Assume that all transactions were cash transactions. 2008 2009 2010 Purchase of Inve
asked by Rosa 
Physics
Which of the following is true? a. Conserved forces cannot do work b. Work can be performed on an object without moving it c. If the work is done by a conserved force, you do not need to know the path the object took d. To know the total work performed on
asked by Paige 
Neptune High
I am in a class for cosmetology my teacher want me to set up a time line with dates and what was created or accomplished who created it and to describ the prouct or accomplishment what dose a time linr look like and how do you set it up on paper with a
asked by kamisha 
statistics
a distribution has a mean of 5 and a standard deviation of 2, what is the z score of 8 ?
asked by Ruben 
math
how can i use the numbers 9 9 9 and 13 to make 24??
asked by math 
Physics
Is the trend for ionic radius just that for metals, they are smaller than the nuetral atom and for nonmetals, and for nonmetals, they are bigger than the neutral atom? Or is there another specific trend?
asked by Emily 
Business Communitions
"Investors And their wives" is considered sexist because?
asked by Jenny 
physics
a mass of 65 kg falls from rest 4.3m onto a spring with a stiffness coefficient of 62000 n/m. How far does the mass compress the spring?
asked by Elmer 
physics
if a 65 kg mass drops vertically onto a spring wit stiffness coefficient of 6.2x10 to the 4th power , how far does it depress the spring?
asked by Elmer 
chemistry
The pH of a 0.10 M solution of ammonia is 11.1. Find the hydroxide concentration.
asked by Jazmin 
AP Physics
6. a)A 1260 kg car accelerates uniformly from rest to 4.65 m/s in 2.6 s. Find the work done on the car in this time.Answer in units of J. b)Find the average power delivered by the engine in the first 1.768 s. Answer in units of W. c)Find the instantaneous
asked by jeff 
Math
x is a number between 3 and 50. How many vales of x is radical x / 13 a rational number?
asked by Lauren 
Chemistry
How do you dilute 100mL of 20ppm Fe3+ to 1,2,4,6,8 ppm, 50mL each?
asked by Jerry 
Government
Do you think that governors should have significant powers? I know there are about 14 states, Texas being one that their governor has very little power. But why should these governors be allowed more?
asked by Joe 
Chemistry
If a solution is made by mixing 50.0 moles of KOH to 3.4 kilograms of water, what is the solutions molality?
asked by Samuel 
world history
Which of the following was the first known king of Mesopotamia? A. Sargon B. LipitIshtar C. Hammurabi D. Gilgamesh
asked by lina 
Bio Medical Science
What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
asked by Sandy 
physical science
Two 5.0kg rocks are 0.20m apart. What is the magnitude of the gravitational attraction between the rocks?
asked by Tina 
Business Finance
Break Even Analysis.. consider the following income statemenbt and answer the question that follow. Sales(100 units) $200 Variable cost (.80each) .80 Fixed cost 20 Ebit 100 interest expense 30 ebt 70 income tax 24 net income 43 What is the firm break even
asked by Michael 
SOCIAL STUDIES
WHY WAS THEODORE ROOSEVELT AMERICAN HERO
asked by NYOMY 
science
bacteria that change nitrogen from the air into compounds that plants can use is called _______________ i don't know what the answer is
asked by pavleen 
math
if p=a^2+a1,which expression represents P+R
asked by pavleen 
social studies
Was the Civial War and the Spanish similiar because they were both fought on us soil.
asked by NYOMY 
Unix Shell script
Shell script Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last
asked by Tina 
Ma
Autoparts Inc. produces three types of parts' assemblies: (P,Q,R)and they each require (2,5,3) units of work on machine I and (2,2,4) units of work on machine II respectively. The two machines have respectively (160,190) units of work available per day. It
asked by Jeff 
CALC
INTEGRAL OF Y^2/(25+Y^2)
asked by tom 
Calculus
Determine if f(x)=5/(x3)^2 is integrable on [0,2]. Justify your answer.
asked by Carmen 
physics
If a mass of 65kg drops 4.3m onto a spring with a stiffness coefficient of 6.2x10n/m to the 4th power, how far does it compess the spring?
asked by Elmer 
Biological Psychology
What is a good site for a simple explanation on chromosomes, meiosis, mitosis, etc as it relates to biological psychology? I have a college level test to study for, and I am really struggling with the complicated text in the book.
asked by Maria 
English
Who is H. L. Mencken? What is he best know for? What was his reputation? Why was he disliked by many Southerners? can anybody help with this thanks
asked by Anonymous 
Math
Differentiate g(x)=(x^3+1)(3x^21) so I use g'(x) X h(x) + g(x) X h'(x) so the derivative of (x^3+1)=3x^2 and (3x^31)=6x So (3x^2)(x^3+1) + (x^3+1)(6x) Is this correct so far. If so this is where I am stuck. I am having trouble simplifing.
asked by Hannah 
social studies
what does the judicial branch do?
asked by cindy love 
precalculas
Given the function f(x)= 4+4x^2, calculate the following values: [f(a+h)f(a)]/h
asked by katrina 
English
I have writiers block..How would I start my research paper on animal rights?
asked by HELP?!?! 
math
maria teresa leftthe libray at 5:30pm and began biking at the ratee of 20km/hr. by what time had she biked 35 killometers?
asked by sarah 
helth
i am in the 5th grade and need to know the function of heart and how to draw it
asked by mimi 
North & Central America
What ensures Canada's cold climate?
asked by Emily 
accounting
a song or poem to help remember the defintion of accountig
asked by otania 
math
f(x)=(1/2e^6x) differientate
asked by linda 
math 117
help solve ã18+ã32=
asked by scott 
Government
According to the doctrine of judicial restraint, the judiciary should a. defer to the decisions of elected officials. b. deny most appeals for retrials. c. deny individual rights when they conflict with the majority’s desires. d. decline to make any
asked by Anthony 
Government
The contention that the Constitution contains moral language that justifies the vigorous protection of individual rights by the judiciary is a view compatible with a. judicial activism. b. judicial restraint. c. analytical jurisprudence. d. precedentbased
asked by Anthony 
Science
I need help how i can make a Volcanoes Concept Map
asked by Anonymous 
ALGEBRA
Sales tax in Pennsylvania is 6%. Create an equation for the total price (cost plus tax) of a purchase in PA in terms of its cost. How much would a person pay for a car whose cost is $32,000? PAY = COST + 0.06 * COST P=C(1+1.06) P=1.06C P= (32,000)=
asked by PEG 
Math
Which is a prime factorization? a. 5^2 x 7^2 x 18^3 b. 5^3 x 7^2 x 19^2 c. 6^2 x 7^3 x 18^2 d. 4^2 x 5^2 x 15^3
asked by Nicholas 
Physics
Is the trend for ionic radius just that for metals, they are smaller than the nuetral atom and for nonmetals, and for nonmetals, they are bigger than the neutral atom? Or is there another specific trend?
asked by EmilyHelp Please! 
Calculus
Use the limit proces to find the are aof the region between the graph of the function f(x)=(x^2)+4 and the x axis over the interval [0,2].
asked by Yulka 
three language sentence
daily language practicecorrect the sentences and rewrite them correctly on the lines. circle subject and underline predicate. Finally, circle the correct type of sentence. The number of corrections is in parentheses. Ex: He discovered the dog in it's
asked by jontre 
Math
Which of the following could represent a function having the given properties? 1)increasing slope for x
asked by Hannah 
English
I need a topic sentence that DOES NOT include factual information about Greek mythology
asked by Abby Williams 
world issues
what is one major existing urban development in the world? regrading urbaization.
asked by mya 
Math
Compute the maximum product for two positive numbers x and y with the property that the sum of the first plus five times the second is 5000. 1) Indicate the objective equation 2) Indicate the constraint equation 3) Rewrite the objective equation in terms
asked by Hannah 
Science
Classify each of the eight living things listed below into one of the two groups according to an important physical characteristic. Gorilla,Parrot,Snake, Earthworm,Jellyfish,sponge,fish,fly Group 1 Group 2 what characteristic did you use in you
asked by Ivy 
Chemistry
If a solution is made by mixing 50.0 moles of KOH to 3.4 kilograms of water, what is the solutions molality?
asked by Samuel 
Chemistry
If a solution is made by mixing 50.0 moles of KOH to 3.4 kilograms of water, what is the solutions molality?
asked by Samuel 
Math
“ y and z are integers greater than 1 5y is the square of a number 75yz is the cube of a number. The smallest value for y + z is = ?”
asked by cherryl 
Yr 10 English  UPDATED
HEY guys! I need to majorly cut down on this piece of writing as i've only got 15 mins to write my piece of journal entry so I need EXTRA help and FAST!! :( Imagine you are a 12 year old boy from Afghanistan wo is newly arrived in Australia. Write a diary
asked by Shivi 
english
how can a school fundraiser for a hospital help prepare me for life after high school please help and thank you
asked by needhelp 
sociology
what is " distraction hypothesis" ?
asked by alya 
algebra 2
Hi there, I feel so embarrassed that even after you give me the answer, i don't even know how to format it. I most definately need to learn this and quickly! if I expect to make my grade. I really apologize for my shortcomings. But, how is it that you
asked by esther 
psychology
Can someone help me understand this question? What are the psychological benefits of having and seeing my own childhood photos, can they those photos help me presently know that I am an adult?
asked by Latisha 
science
what are 3 ways bacteria affect your life?
asked by pavleen 
microbiology
Which are the two other pathways necessary to obtain enough energy to accomplish the task?
asked by heidi 
cheerleading
what is tumbling in cheerleading?
asked by alanaR. 
career planning
How attending a christian college help you achieve your goal to become pharmacist.
asked by johnny 
Math
u x 6 2/3=20
asked by dan 
Maths literacy
Write 78/115 as a decimal fraction
asked by Joel 
algebra2/trig
for what are value of k are the roots of 3x^26x+k=0 equal?
asked by jackie 
algebra2/trig
the length of a rectangle is 2x+4/(x^29) and its width is 3/(x3). express the perimeter of the rectangle as a single fraction in simplest form.
asked by jackie 
SOCIAL STUDIES
DID THE THE CIVIL WAR BEGIN BEFORE THE THE AMERICAN SPANISH WAR
asked by MARY 
science
the plant disease that causes flower young leaves and stems to die quickly is called ____________.
asked by pavleen 
SOCIAL STUDIES
I cant believe i don't know this.my quistion is where is Cuba.
asked by NYOMY 
science
foods that are canned are cooked at high temperatures and then placed in airtight containers what efffect do these action have on the food
asked by pavleen 
math 117
simplify by factoring sqrt1575to the 4th sorry not sure how to type it out right
asked by scott 
english
clutced her notebook in the other hand as though it were a flyswatter
asked by diana 
english
clutced her notebook in the other hand as though it were a flyswatter is this a similie?
asked by diana 
sociology
what is digital device
asked by alya 
english
can i know how to paraphrase : 1) fresh and dried cherries are one of the only natural food sources of melatonin, the chemical that controls the body`s internal clock to regulate sleep. researches who tested tart cherries and found high levels of melatonin
asked by alya 
maths
k(t)==34^t/sin(4)t
asked by emma 
math
9(x5)=4x5
asked by pavleen 
socialstudies
what does a peninsula
asked by esha