Questions Asked on
February 10, 2011

Algebra
Explain three rules of exponents
asked by Danielle 
Math
evaluate without using a calculator lg(1/10)
asked by Noah 
calculus
the edge of a cube is increasing at the rate of .05 centimeters per second. in terms of the side of the cube s, what is the rate of change of the volume of the cube, in cm^3/sec
asked by crystal 
Physics
A particle has an initial horizontal velocity of 1.8 m/s and an initial upward velocity of 4.7 m/s. It is then given a horizontal acceleration of 2.3 m/s2 and a downward acceleration of 1.6 m/s2. What is its speed after 1.9 s? Answer in units of m/s. What
asked by Catarina 
2nd grade
How do do the worksheet, guess my rule with two rules. Guess each rule and write it down. Using shapes.
asked by Help me 
10 grade
A 80 slug car runs into a wall while moving at 10ft/s. If the car bounces off the wall with the same speed it struck it with as a result of having been in contact with the wall for .8 second, then find... a)... The initial momentum of the car b)... The
asked by sravya 
math
If E,N,O,T,and W each represent a different integer, can you find more than on solution to this problem?
asked by christy 
math
If E,N,O,T, and W each represent a diffrent integer, can you find more than one solution to this problem? ONE + ONE = TWO
asked by christy 
Chemistry Drbobhelp#3
I still need help with #3 I'm not sure how I got 1.14M. I have tried to do the problem over, but I not coming up with my original answer of 1.14M. Somehow I am missing a step. Please show work for the 1.14M Thanks Question#9 reads exactly as written. A
asked by Paul 
Human services management 240
compare and contrast the types of delivery systems (in social programs)mentioned in chapter 7. What should agencies want in terms of "good" service and benefit delivery?
asked by cristee 
Math
I am really have a tough time trying to solve this problem. I think my first three steps are correct but I am not sure. Could someone please help me? I got lost somewhere on one of these steps. I thonk it was step 3, 4, 5. Thank you. The two numbers chosen
asked by Tiffany 
Chemistry
express this mass as a percentage of the weight of your sample of plant food. this is the % of elemental phosphorous in the plant food. I'm not sure what the question is asking for. The mass its referring to is 0.06438g Phosphorus and the weight of the
asked by Buzz 
Chemistry
A 0.0677g sample of magnesium metal reacted with excess hydrochloric acid to produce 69.9 ml of hydrogen gas. The gas was collected over water at 21.0 degrees Celsius. The levels of water inside and outside the gas collecting tube is identical. The water
asked by K 
math
the base of a triangle is the same as its height. what are the least whole number measurements for the triangle so that the area would be greater than 144 ft square?
asked by martin 
math
the base of a triangle is the same as its height. what are the least whole number measurements for the triangle so that the area would be greater than 144 ft square?
asked by martin 
Chemistry
A 0.188g sample of unknown metal, X (s), produced 71.4 ml of hydrogen gas when reacted with HCL according to the equation: X(s)+2HCL(aq)>XCl2(aq)+H2(g) The gas was collected over water at 23 degrees Celsius. The levels of water inside and outside the
asked by K 
chemistry
complete the table a, 355km/s cm/s m/m b,1228g/L g/mL kg/ML C,554MK/S K/S UK/MS D,2.554MG/Ml J mJ
asked by ncheta 
chemistry
ok and i had another question: convert the % elemental phosphorus(6.391%) to the % phosphorus present as phosphorous pentoxide (P2O5)
asked by Buzz 
Calc
The base of a solid is a circle of radius a, and its vertical cross sections are equilateral triangles. The volume of the solid is 10 cubic meters. Find the radius of the circle.
asked by Erica 
math
according to data from the national safety council, the fatalaccident rate per 100,000 licensed drivers can be approximated by the function f(x)=.0328x^2  3.55x + 115, where x is the age of the driver (16< or equal to x < or equal to 88). at what age is
asked by anonymous 
Chemistry
2 CO (g) + O2 (g) > 2 CO2 (g) The mechanism below has been proposed for this reaction; (slow) O2 + CO > CO2 + O (fast) O + CO > CO2 Based on this mechanism what is the rate law for this reaction?
asked by John 
chemistry
a 3.11g sample of one of the halogens, Xsubscript2, is shown to react with NaOH to produce 2.00g NaX. the equation is 2NaOH+X subscript 2 yields NaX+NaXO+ water. Assuming that the percent yield of product is 100% identify the halogen.
asked by callie 
chemistry
CS2+3CO2=2SO2+CO2.HOW MANY OF SULFUR DIOXIDE CAN BE OBTAINED FROM 3.50 MOLES OF CARBON DISULFIDE?
asked by BOLA 
Chemistry
What is the volume of Tin(Sn)? Mass of sample = 2.588g Initial vol. of water = 31 m/L Final vol. of water = 32 m/L
asked by Sierra 
geometry
If a triangle has angle measures 15, 120 and 45, and the length of the side between the 15 and 120 angles is 8, what is the area of the triangle?
asked by Linda 
chemistryhelp
a compound contains 63.15% Carbon, 5.30% hydrogen, 31.55% oxygen. Its molar mass is 152.14 g/mol. determine the empirical and molecular formula. I get the empirical formula to be C8H803 is it right because it is not fitting the molecular formula because
asked by amy 
Math
The number of tickets sold each day for an upcoming performance is given by N(x)=0.5x^2+12x+13, where x is the number of days since the performance was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
asked by Tish 
Physics
An uncharged spherical conducting shell surrounds a charge q at the center of the shell. The charges on the inner and outer surfaces of the shell are respectively... a] q,q b]+q, +q c]q, +q d]+q,0 e]+q, q 2) A postive point Charge is enclosed in a
asked by John 
chemistry
what volume and mass of steam at 100 degrees C and 1.00 atm would, during condensation, release the same amount of heat as 100.cm^3 of liquid water during freezing? What do you note, qualitatively, about the relative volumes and masses of steam and liquid
asked by JAJA HI 
Magnetism
I need to calculate the magnetic field strength at 30 cm distance of a coil with a diameter of 17 cm. Directly at the coil surface I measure 100 Gauss. Please advise.
asked by Ben 
physics
A motorbike accelerates uniformly at 0.6m.s for 10s. If it covers a distance of 500m. During this time, what was its initial velocity?
asked by Elton luthuli 
AP Chemistry
I have no idea how to answer this question: A compound effuses through a porous cylinder 3.20 time faster than helium. What is it’s molar mass? Help me please? Give a step by step detail please.
asked by Ana 
soc 120
Do ethics apply to sex? Or is that something strictly relative to specific cultures or personal context?
asked by meshelle 
algebra
Solve the equation x= 9
asked by Anonymous 
prealgebra
what is x? 2x+4=3x6
asked by Kai 
spelling
I need a sentence for the for transferring
asked by Starr 
Social Studys
If the french had won the french and indian war, what might have happened??????????
asked by Urgent!! 
language arts
hoow does language arts help me become a registered nurse?
asked by casandra 
Clinical Procedures
On which type of route can a miroorganism travel from one place to another? A. Botulism B. Universal Precaution C. Vector D. Fungi i am torn between A and D. however my answer is A. please help!
asked by Jessica 
math 5th grade
One morning, 8/9 of the customers at the diner ordered coffee. Regular coffee was ordered three times as much as flavored coffee. What fractional part of the customers orderd flavored coffee? I did it this way 8/9x3/1= 24/9=8/3 It is wrong so please show
asked by B 
math
How do you make this sign on he computer √
asked by charles 
physics
An electron and a proton are separated by 2.0 nm. (a) What is the magnitude of the force on the electron? (b) What is the net force on the system?
asked by Jay 
Business Management
50 lb bags @ $12.50/bag Fixed Costs: $68,000 Variable Costs $.15/lb Annual Interest Expected $7500 A. What is the breakeven point in bags? B. C.
asked by Polly 
Clinical Procedures
Why should a recording in the medical record never be erased or obliterated? A. It makes it harder to read the chart. B. The patient may not receive the proper care. C. It will invalidate the legal value, which would be important in any litigation. D. It's
asked by Jessica 
English
Can you check these sentences for me please? Thank you. 1) Who were the Druids and what was their role within the Celtic social system? Refer also (or also refer?) to the etymology of their name. 2) When did te bubonic plague strike England and what were
asked by Franco 
Chemistry
Hey, been trying to work through this but no luck so far: The heat of formation of nitrogen atoms N(g) is 472.7KJ/mol. Is that enough information to determine the NN bond energy in N2(g)? Is so, what is it in units of KJ/mol? If not, explain why not.
asked by Tyrell 
HCA 220
posted a soap, teacher asked that i change the s & o. this is what i did: s  patient is here for a non routine checkup, she is 4 months pregnant and is complaining of weakness, fatigue, lack of appetite and lightheadedness. o  HEENT: normal. patient has
asked by Jackie 
chemistry
If 14.8 kJ of heat is given off when 1.6 g of HCl condesses from vapor to liquid, what is the delta Hcond. for this substance?
asked by Jazmin 
physics
A transverse wave is traveling with a speed of 500 m/s on a horizontal string. If the tension in the string is increased by a factor of 2, what is the speed of the wave?
asked by help please 
Physics
A transverse wave is traveling with a speed of 500 m/s on a horizontal string. If the tension in the string is increased by a factor of 2, what is the speed of the wave?
asked by help please 
english
Find the word that is acting as either a predicate nominative or predicate adjective in the sentence. Then tell which of the two it is. Megan is an intelligent girl.
asked by Anonymous 
Math
Use Euler’s formula to answer the question. A polyhedron has 12 edges and 6 faces, how many vertices does it have?
asked by Rena 
algebra
solve the following simultaneous equations 5y=13 x+y/2+30=0 2x2y=9 2x+2y=9 The first set, I have no idea and the second set I tried but wish to double check.
asked by Kat 
chemistry
A 1L flask is filled with 1.000atm of H2 and 2.000atm of I2 at 448*C. The following equilibrium is established: H2(g)+I2(g)= 2HI(g). The value of K for this equilibri um is 50.5. What are equilibrium partial pressures of H2,I2,and HI?
asked by Victor 
com 156
What aspect of writing an introduction do you anticipate will be a challenge for you? Explain why.
asked by bonjour 
Algerbra 1
Shane and Kate are preparing to go on long car trips with their families. Shane bought 8 books and 2 CDs for $73.60. Kate bought 3 books and 4 CDs for $69.85. Both totals were withour tax. All of the books were the same price and all of the CDs cost the
asked by Jessica 
physics
The builders of the pyramids used a long ramp to lift 20000kg (20ton) blocks. What is the gravitational potential energy of one of the blocks if it’s now 79 m above the ground?
asked by olga 
physics
You’re using a wedge to split a log. You are hitting the wedge with a large hammer to drive it into the log. It takes a force of 3500 N to push the wedge into the wood. If the wedge moves 0.2 m into the log, how much work have you done on the wedge?
asked by olga 
physics
You’re sanding a table. You must exert a force of 23 N on the sandpaper to keep it moving steadily across the table’s surface. You slide the paper back and forth for 23 minutes, during which time you move it 1090 m. How much work have you done?
asked by olga 
physics
The earth exerts a downward force of 850 N on a veteran astronaut as he works outside the space shuttle. What force (if any) does the astronaut exert on the earth?
asked by olga 
Physics
A 3kg block is resting on a table with a coefficient of friction of 0.4. It is now pushed with a force of 15n. What is the acceleration of the book?
asked by Derrick 
geometry
Describe how four 454590 triangles fit together to form a square.
asked by Anonymous 
animals
What is the location of the Little Blue Penguin?
asked by liz 
7th grade introduction/conclusion
I have this stupid extra credit thing due tommorrow about the forest and I need the steps to writing an intro and conclusion because I forgot to bring home my notes??????? So if u could help me out I really appreciate it!!!!??? Thx Sara
asked by Sara 
animals
How many eggs can a Little Blue Penguin lay? And what are their color features?
asked by liz 
animals
What is the population of gentoo penguins?
asked by spencer 
calculus
For the function f(x) = 18/(3x14) determine the xcoordinate of any vertical asymptote
asked by maggie 
business calculus
For the function f(x) = 18/(3x14) determine the xcoordinate of any vertical asymptote
asked by maggie 
chem
i need help on this question: Equal masses of gaseous N2 and Ar are placed in separate flasks of equal volume at the same temperature. Tell whether each of the following statements is true or false. a) There are more molecules of N2 are present than atoms
asked by hannah 
English
How can i generally discuss books and World Wide Web in my introduction? I mean i want to focus on books and internet.
asked by TITI 
chemistry
A ten gallon methane tank contains 1.243 mol of methane at 74°F. Express the volume of tank in liters, the amount of methane in the tank in grams, and the tempature of the tank in kelvin.
asked by Kalyn 
Math
f(x)=x^3+2x^257x+54;k=6
asked by Anonymous 
physics
An object is lifted from the surface of a spherical planet to an altitude equal to the radius of the planet. As a result, what happens to the mass and wieght of the object?
asked by Dee 
chemistry
a chemist performs the sunthesis of sodium chloride from its elements. The chemist begins with 46 grams of sodium. How many grams of sodium chloride are produced? 2Na + Cl2 > 2NaCl
asked by Joana 
Chemistry
What is the empirical formula of caffeine (C8 H10 N4 O2)? How do I get it? Thanks
asked by Cad 
Chemistry
A solution contains 3.75g of nonvolatile pure hydrocarbon in 95g acetone. The boiling points of pure acetone and the solution are 55.95C and 56.50C, respectively. The molal boiling point constant of acetone is 1.71 C*kg/mol. What is the molar mass of the
asked by James 
Chemistry
A 6.0g of methane decomposes into 4.5g of Carbon and 1.5g of Heydrogen. Determine the empirical formula of methane.
asked by Cecille 
physics
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +8.3 m/s and ax = +8.8 m/s2. The y components of the puck's initial velocity and
asked by frost 
physics
A skateboarder shoots off a ramp with a velocity of 7.9 m/s, directed at an angle of 56° above the horizontal. The end of the ramp is 1.3 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the
asked by frost 
physics
A space vehicle is coasting at a constant velocity of 24.7 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.228 m/s2 in the +x direction. After
asked by frost 
Physics
A charge of uniform volume density (40nC/m^3) fills a cube with 8cm edges. What is the net flux through the surface of the cube?
asked by John 
physics
A fire hose ejects a stream of water at an angle of 37.9 ° above the horizontal. The water leaves the nozzle with a speed of 25.5 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the
asked by frost 
physics
A majorleague pitcher can throw a ball in excess of 44.4 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the point of release?
asked by frost 
physics
A diver runs horizontally with a speed of 0.759 m/s off a platform that is 10.0 m above the water. What is his speed just before striking the water?
asked by tish 
physics
An airplane with a speed of 94.9 m/s is climbing upward at an angle of 63.2 ° with respect to the horizontal. When the plane's altitude is 743 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly
asked by tish 
physics
Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0° the horizontal. At this instant your opponent is 10.0 m away from the ball. He begins moving away from you 0.38 s later, hoping to reach the ball and hit it back at the
asked by tish 
physics
a rifle that has been ‘sighted in' for a 91.4meter target. If the muzzle speed of the bullet is v0 = 328 m/s, there are the two possible angles è1 and è2 between the rifle barrel and the horizontal such that the bullet will hit the target. One of
asked by tish 
physics
An airplane is flying with a velocity of 240 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.4 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle è?
asked by tish 
economics
Question 1. An accurate statement about the Great Depression would be that? A. it was a recession that became a depression because of World War II. B. it was set off because of a sharp and unexpected rise in interest rates. C. it was the most severe
asked by Lonly 
Modern World Studies
1. What do we call the movement in literature and the arts that emphasized nature and emotion over reason? [x] a. Enlightenment b. Reformation c. Romanticism d. Neoclassicism 2. Who said it is the government’s job to protect the natural rights of life,
asked by Megan 
algebra
a window is shaped like a rectangle whose perimeter is 294 in. The length is 6 times as long as the width. Find the lengthnand the width.
asked by shelia 
Economics
Today's supply curve of classrooms on campus is likely to have a price elasticity of: less than one equal to one greater than one Can anyone please assist? Thanks
asked by Lizette 
Social psycology
Prepare at minimum a 1,400 word paper (no maximum) in which you examine the discipline of social psychology. As a part of your examination, be sure to address the following items: o Define social psychology. o Discuss how social psychology differs from
asked by cla 
Economics
Today's supply curve of classrooms on campus is likely to have a price elasticity of: less than one equal to one greater than one Can anyone please assist? Thanks
asked by Lizette 
chemistry
what is the molality of a 10.5% by mass glucose solution?. density of the solution is 1.03g/ml can someone please explain how to do this question. please and thank you
asked by sam 
algebra
A window is shaped like a rectangle whose perimeter is 294 in. The length is 6 times as long as the width. Find the length and the width
asked by shelia 
algebra
last year lien earned 1,700 more than her husband. Together they earned 42,100. howm much did each of them earn?
asked by shelia 
Math
50MB file is compressed using a compression ratio of 10. What is the compressed file size?
asked by Sue 
Chemistry
sir p2o5+H2o = H2P2O6 why is it H3po4? instead of H2P2O6 please explain me
asked by Ramesh Reddy 
computers
Can please help me, i'm stuck on thios question: Q) Select the two true statements from the following list. A)In the OSI model, PDUs at layer 2 are called frames and PDUs at layer 3 are called packets. B)In an IPv4 packet header the TimetoLive field is
asked by Sue 
physics
A laden lorry of mass 3000kg travelling due east at 40 m.s 1 collides head on with a large truck of mass 2000kg travelling at 30 m.s 1. the two vehicles combine during the collision. Calculate the velocity with which the two wrecks move after collision.]
asked by Claudia 
physics
truck A of mass 2,5 x 10(4) kg approaches a second truck B of mass 2 x 10(4) kg with a velocity of 12 m.s 1 and collides with it. After collision the two trucks move apart with equal but opposite momenta. Calculate what the velocity of B was before the
asked by Claudia 
physics
an aeroplane of mass 8000kg flying at 600km.h1 fires a projectile of mass 100kg at a speed of 900 km.h1. Calculate the velocity of the aeroplane after firing if the projectile was fired a)forward b) backward
asked by Claudia 
business calculus
For the function f(x) = 1/(x2+14x42) there are two vertical asymptotes. Determine the xcoordinate of each one
asked by mj 
physics
A cannon on a stationery railway truck fires a shell of mass 5 kg with a velocity of 240 m.s 1. The mass of the cannon is 600kg. The cannon recoils and moves back on the rails and collides with a stationery truck of mass 400 kg. The velocity of the cannon
asked by Claudia 
math
Stuck on solving this inequality, help please. 3X le 15 and 2x gt 6
asked by marco 
calculus
Let f(x)= Ax^2 + Bx + C. If f(x) passes through the point (1,1) and has a relative minimum at (1,13), find A, B, and C.
asked by stephanie 
CRIMINOLOGY
Describe one of the psychological or physical traits of the trait theories associated with criminal behavior and provide an example of a recent criminal who exhibits this trait.Might this crime be prevented in future circumstances?
asked by kathy 
Geometry
if plane angle DAB = (67 + 4x) degrees, than wht is plane angle DAB?
asked by al 
literature
compare and contrast the structure and literary elements of Abigail Adams' letter to her daughter with Jean de Crevacoeur's essay from "letters from an american farmer."
asked by ted 
Math
I need help step by step on how to figure how many ways can three cars be parked in a row of four parking spaces?
asked by Judy 
geometry
Rectangle ABCD is similar to rectangle EFGH. Rectangle ABCD has the following dimensions: segment AB=10 inches; segment BC = 6 inches; segment CD =10 inches; segment AD=6 inches. In rectangle EFGH, segment EF=25 inches.
asked by Anonymous 
Ap Calculus
Find the equation of the tangent line to the graph of f(x)=cos3xlnx^4 at (1,0)
asked by Dinorah 
algebra
During the month of february, the depth,d, of snow in inches at the base of one ski resort can be approximated by adding 7 to twice the number of days, t, since Jan. 31.
asked by jessica 
com170
Write five sentences about the role of education in successful financial planning in the spaces on the following page. Correctly use a different verb tense in each sentence. Highlight each verb in yellow and identify the tense in parentheses.
asked by joe 
english 105
Why Should one know the difference between prejudice and racism?
asked by natalie 
English
Can you check if these sentences are OK please? I forgot to include them before. 1) The first three questions are questions on the revision and must be answered by all those students with low marks. 2)The British Museum is such a fantastic place to visit.
asked by nco 
spanish
Can someone check my work? Read the school rules listed below. In the the blanks write (P)profesor for realistic rules that were most likely written by teachers for their classrooms. Write (E)estudiante for improbable rules that were most likely submitted
asked by amanda 
phoenix
The library is an excellent sources and option. What are some other public option? examples & explanation.
asked by alexandra 
Math
The length of a rectangular piece of property if 1 foot more than twice the width. If the perimeter is 302 feet, find the length and width.
asked by RNRH 
american literature
list three rhetorical devices that patrick Henry uses in his "speech in the virginia convention." Give an example from the speech of each rhetorical device.
asked by amber 
algebera
the lengthnof a rectangular jewelry box is 3 inches more than twice the width. the perimeter is 30 inches. find the length and the width?
asked by shelia 
math
I was asked to simplify all variable but are positive real numbers and they have exponents
asked by Maposo 
math 2
how do i find a scale factor for scale drawings and scale models
asked by jarrad 
Algebra 1
Quadrilateral ABCD has vertices A(2,1), B(3,3), C(5,7), and D(0,5). Determine whether line AC is perpendicular to line BD.
asked by Ryan 
College Physics :/
a ship is traveling due east at 10 km/h. what must be the speed of a second ship heading 30 degrees east of north if it is always due north of the first ship?
asked by Anonymous 
science
if a force of 50 N stretches a spring 250 mm, what is the spring constant?
asked by joey 
business accounting
can some one help me with a websit for this question. Create a Rewards and Recognition Program. Illustrate your ideas and information with examples of how frequent feedback and recognition can be delivered. ► Include Justification Time frame How results
asked by Denese 
math
Driving at a constant rate, noah covered 130 miles in 3.5 hours. Express his driving rate in feet per minute.
asked by kaykay 
science
if a force of 50 N stretches a spring 250 mm, what is the elastic potential energy of the spring when it is stretched by 200 mm?
asked by joey 
physics
The masses of the earth and moon are 5.98x1024 and 7.35x1022 kg, respectively. Identical amounts of charge are placed on each body, such that the net force (gravitational plus electrical) on each is zero. What is the magnitude of the charge placed on each
asked by anto99999999999999999999999999 
5tth grade math
every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines.How many students are in the class.
asked by tryston 
social studies
My second grader is writing an essay on the blending of the American Culture. Help please!
asked by Anna 
math
The ratio of boys to girls in a school choir is 4:3. There are 6 more boys than girls. If another 2 girls join the choir, what will be the new ratio of boys to girls?
asked by kaykay 
physics
A boy of mass 65.3 kg is about to disembark from a canoe of mass 36.1 kg. The canoe is initially at rest, with the bow just touching the dock (see figure). The center of the canoe is 3.0 m behind the bow. As the boy moves forward 6.0 m to the bow, the
asked by Anonymous 
fifth grade math
at the school free throw contest, jane made 48 out of 60 shots. max made 78% of his shots, who is the better free throw shooter
asked by anthony 
physics
The location of two particles at t = 0 is shown in the figure below. The particles are initially at rest. Each particle is subject to a constant force, as indicated in the figure. (Take m1 = 2.06 kg and m2 = 0.95 kg.) (a) Find the position of the center of
asked by Anonymous 
Albany, New York
Why did Zorna Pour Ketchup on Her Brother's Hand?
asked by Anonymous 
english
why is the ending of a story significant?
asked by ted 
College Physics
A uniform plank of length L leans against a vertical wall, its head a distance h above the horizontal ground. If we let go of the plank from rest, how far above the ground is the head of the plank the moment it loses contact with the wall?
asked by Grimider 
math
Olivia picked 2.5 kilograms of cherries. She divided the cherries evenly among 10 small baskets. How much did each basket hold?
asked by William 
Physics
A small bead of mass m is free to slide along a long, thin rod without any friction. The rod rotates in a horizontal plane about a vertical axis passing through its end at a constant rate of f revolutions per second. Show that the displacement of the bead
asked by Roger Cole 
Chemistry
I need help predicting the products and naming them using classes and subclasses. a. Br2+BaI2 b. CdBr2+Na2S c. H2+Br2 d. H3PO4+Ca(OH)2 (Numbers above are supposed to be in subscript form)
asked by Maddie 
chemistry
A bag of potato chips contains 585 mL of air at 25°C and a pressure of 765 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 448 mm Hg and the temperature is 6.0°C? I set it up like p1v1/t1=
asked by sam 
grammar
underline the adverb and circle the word or phrase it tells more about. These furs brought extravagantly high prices. Theirs was a very solitary existence.
asked by Carol 
Math(Graphing)
What would the function H(x)=0.002x^2+0.005x0.029 look like?
asked by Steve 
Math(Graphing2)
What would the functions 4808t0.8t^2 254+0.78t look like? How would they look like if they were added? (480+8t0.8t^2+254+0.78t)
asked by Steve 
Economics
I have to fill in the following for a fascist economy. Ownership of resources = private Philosophers= Karl Marx (are there more?) Role of government= to controls production and allocation of resources Reaction to social and technological Change= don't know
asked by Jeff 
Algebra
A roadside vegetable stand sells pumpkins for $5 each and squash for $3 each. One day they sold six more squash then pumpkins and their sales totaled $98.00. Write a system of equations to find the number of pumpkins and squash they sold.
asked by Hannah 
math
if a wheel chair ramp is 6.10m long with a rise of 0.45m what should the angle of degree be
asked by shaunna 
Chemistry
Find the mass of hydrogen gas if 420.5 mL of nitrogen gas reacted to form ammonia at STP according to the equation: 3H2 + N2 = 2NH3
asked by Mia 
geometry
If the degree measures of the angles of a triangle are represented by x,y,x+y the triangle must be??
asked by andrea 
math
a ball is dropped 128 feet from the roof of a building with each bounce the ball goes up exactly half its previous height. A man is sitting at his desk on the second floor. How many times will he see the ball if his eye level is 15 feet above the ground?
asked by sammie 
health
Is it possible to have a stressdisorder? And if so, would it be deadly? Thank u for helping me with this strange question.
asked by sierra (6th grade) 
math
Rowan raised $640 in a chairty walked last year . this year he raised 15 percent more than last year. how much did rowan raise this year. wat do i do
asked by pavleen 
chm
Silver chloride, often used in silver plating, contains 75.27% .Calculate the mass of silver chloride required to plate 195 of pure silver.
asked by ahmad 
physics
Vector vector A has a magnitude of 27 units and points in the positive ydirection. When vector vector B is added to vector A , the resultant vector vector A + vector B points in the negative ydirection with a magnitude of 18 units. Find the magnitude of
asked by jj 
physics
A 4.5 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=13.50 N at an angle theta=30.0 degrees above the horizontal. What is the speed of the block 5.50 seconds after it starts moving?
asked by jessie 
math
If the O scale (model train question) is 1/48 the acutal length. An Oscale locomotive is 1.05ft long. How long is the actual locomotive?
asked by megan 
english
what are the styles of characterization
asked by ted 
MAth(Someone please help)
What would the function H(x)=0.002x^2+0.005x0.029 look like?
asked by Ethan 
math
x y 1 1 0 4 1 7 2 10 3 5 i got the answer it 13 and 15 what duhh rule
asked by pavleen 
Graphing(I Truly Need Help) :)
What would the functions 4808t0.8t^2 254+0.78t look like? How would they look like if they were added? (480+8t0.8t^2+254+0.78t)
asked by Steve 
math
bob has a container with a capacity of 12 quarts. he wants to express this capacity in gallons. write a proportion to find the number of gallons of water bob's container can hold.
asked by pavleen 
Math
Kate is 4yrs older than Margaret . In 7yrs the sum of their ages will be 70. How old are they now. How do you find kates age using mArgarets
asked by Amy 
health
List 3 word elements and examples in health field?
asked by Jo 
math (8th grade)
The length of each piece in a model train railroad built on the HO scale is 1/87 of the actual length. Another popular model is the N scale, for which the scale is 1/160. Each car on a fullsize passenger train is 80ft long. What is the length in inches of
asked by megan 
Chemistry
Consider a gas that has a molar mass of 100.21 g/mol. What mass of this gas would occupy a 150 mL container under a pressure of 1.00 atmosphere and a temperature of 25 degrees centegrade?
asked by Nili 
earth science
what are the six most abundant components (elements)dissolved in seawater? what is produced when the two most abundant elements are combined?
asked by frakia 
akgebra 2
Use synthetic division to divide x^4+4x^3+6x^2+4x+1 by x+1
asked by Adri 
Stats
a population of 8 scores has a mean of 11. If one of the scores in this population is changed from x=9 to x=25, what value would be obtained for the new population mean?
asked by Anonymous 
chemistry
The total pressure in a 11.3 L automobile tire is 44 psi at 11°C. By how much does the pressure in the tire rise if it warms to a temperature of 29°C and the volume remains at 11.3 L?
asked by HELP 
chemistry
A bag of potato chips contains 585 mL of air at 25°C and a pressure of 765 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 434 mm Hg and the temperature is 4.3°C?
asked by bob the builder 
Math
How to find the (implicit) domain for the function f(x) = ln(16x + 14).
asked by Diane 
math
if a cheetah runs 64 mph how far can it run in 15 minutes?
asked by linda 
math
a squirrel runs 12 mph how far can it go in 5 minutes?
asked by linda 
Science  Motion
What are two aspects of motion????
asked by m101 
Math
Given that f(x) = a log x for some constant a, and that f(7) 5:282, determine the value of a and calculate f(13) to 3 decimals.
asked by Diane 
math
Super Bowl XLIV, which aired on February 7, 2010, included a record 47 minutes and 50 seconds of advertising in 104 commercial messages, the most of any Super Bowl. What was the average length, in seconds, of an ad shown during Super Bowl XLIV? Express
asked by Anonymous 
History
What did Mussolini, Hitler, and Stalin all share in common.
asked by Ashley k. 
CRIMINOLOGY
Describe one of the psychological or physical traits of the trait theories associated with criminal behavior and provide an example of a recent criminal who exhibits this trait.Might this crime be prevented in future circumstances?
asked by kathy 
Math
Does anyone know how to solve? (3cd^4)(2c^2)
asked by Kody 
physics
On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 3.7 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 44 m/s at an angle of
asked by Dyer 
Physics
Suppose a straight 1.25 mm diameter copper wire could just "float" horizontally in air because of the force of the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 5.00 multiplied by 105 T. What current would the
asked by Justin 
US History
How did Hitler respond to Germany’s obligations under the Treaty of Versailles when he became Germany’s leader?
asked by Molly 
Science
I need an acrostic poem for Photosynthesis?! I got everything else I need a few letters Photosynthetic or Plants Heterotrough Oxygen Tomatoes Outside Stoma Y????? N???? Trees H2O Energy Sun I???? Suger
asked by Brianna 
Geometry
A road climbs at an 8 degree angle with the horizontal. What is the grade of the Road.
asked by Rose 
bus303
List one external factor that you feel has a powerful influence on your company's HRM function and explain why.
asked by mike 
Math
Suppose that 34% of the people who inquire about investments at a certain brokerage firm end up investing in stocks, 30% end up investing in bonds, and 35% end up investing in stocks or bonds (or both). What is the probability that a person who inquires
asked by Rachal 
Math
I need to know how to figure out 290,000 is 70% of what???? How do I get the what?
asked by Cheryl 
Chemistry
If you begin with 100.0 mL of a 3.0 Molar solution of ammonium sulfate and 100mL of a 2.0 Molar solution of barium phosphate how many grams of Barium sulfate would be produced?
asked by jackie 
math
what is 21/10 as a percent
asked by gop 
math
what is 21/10 as a percent
asked by gop 
math
In a dice game if you roll a 2, 4, or 6 you get the value of the die. If you roll as 1, 3, or 5 you lose $5. What is the expected value of the game?
asked by john 
TrigValue of angle degree
For the angle degree 0, i don't understand how for sin it's 0 and then for cos it's 1 and then for csc it's undefined. How would I get that algebraically? wouldn't it be just a line so how would I get the different values?
asked by Amy 
fin 200
using the financial statements for the goodyear calendar company calulate the 13 basic ratios
asked by kim 
math
what percent of 1/4 is 2/5
asked by jess 
math
x y 1 1 0 4 1 7 2 10 3 5 i got the answer it 13 and 15 what duhh rule
asked by pavleen 
Reading/ELA
What is a good sentence for syringe?
asked by Anonymous 
physics 1 please help!
A man seeking to set a world record wants to tow a 106000kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is 0.99.
asked by Hannah 
physics 1 please help!
A man seeking to set a world record wants to tow a 106000kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is 0.99.
asked by Hannah 
math
Complete the proof. Given: ∠DCE≅∠CDE≅∠DEC; ∠CDB≅∠CBD Prove: BC≅DE a. DE≅EC≅CD because ___? b. BC≅DC because ___? c. ∴ BC≅DE because ___?
asked by Haleigh Dawson 
physics 2 help please!
The space probe Deep Space 1 was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generates only a weak thrust, but it can do so over long periods of
asked by Hannah 
physics help please!
A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon? This point lies on a line between the centers of the
asked by Hannah 
physics please help! 116
Two blocks are connected by a rope that passes over a set of pulleys. One block has a weight of 412 N, and the other has a weight of 908 N. The rope and the pulleys are massless and there is no friction. (a) What is the acceleration of the lighter block?
asked by Hannah 
Ch. 5 physics help!
There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a cylindrical container mounted so that it can be rotated about its axis by turning a hand crank. The outer wall of the cylinder is perforated with small holes.
asked by Hannah 
physics help go!
Two cars are traveling at the same speed of 27 m/s on a curve that has a radius of 126 m. Car A has a mass of 1020 kg, and car B has a mass of 1670 kg. Find (a) the magnitude of the centripetal acceleration and (b) the magnitude of the centripetal force
asked by Hannah 
Biology  Uncertainty (Repost)
I'm doing a bio lab, and I have collected data on heart rate measured in beats/15 secs with an uncertainty of +/ 1 beat/sec. To get heart rate per minute, I multiplied my data by 4, making my uncertainty +/ 4 beats/min. However, what I need to do now is
asked by Stuck 
physics cars!
Car A uses tires for which the coefficient of static friction is 0.175 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 28.3 m/s. Car B uses tires for which the coefficient of static friction is 0.740 on the
asked by Hannah 
physics for dummies!
The man hanging upside down is holding a partner who weighs 699 N. Assume that the partner moves on a circle that has a radius of 3.37 m. At a swinging speed of 3.49 m/s, what force must the man apply to his partner in the straightdown position?
asked by Hannah 
social studies
what is secondary, tertiaty, quaternary industry of Ukraine
asked by courtny 
Science
you have 25 L cylinder of helium at a pressure of 135 atm and a temperature of 23 degrees celcius. the He is used to fill balloons toa volume of 1 L at .982 atm and 27 degrees celcius. how many balloons can be silled with He?
asked by Uru 
math 3rd grade
what kinds of angles do you see in the letters E,F, and L? Is right correct
asked by mekhi 
social studys
whats a funny social study story
asked by crystal 
social studys
what does a horse got to do with farming
asked by crystal 
chemistry
a sample of gas has a volume of 12liters at 0 degrees celcius and 380 torr. what will be its volume whent the pressure is changed to 760 torr at a constant temperature?
asked by melissa 
statistics
Suppose that in a particular year the probability of a college student being parttime was 0.43. For parttime students, the probability of being male was 0.33. For fulltime students, the probability of being male was 0.42. Find the probability of a
asked by Amiee 
math
Write a word using capital letters. Your word needs to have 5 acute, 2 obtuse, and 5 right angles?
asked by mekhi 
Language Arts
I have to underline the simple subject and simple predicate and circle the prepositional phrase this sentence...There was a rank smell below the deck fromthe dead raccoon.
asked by Sydney 
Calculus
Find the derivative of 4e^x+x^3
asked by Grace 
MATH
During play, a ball with a diameter of 3.00 inches splits exactly in half. What is the volume of each portion of the ball?
asked by Asher 
Math
The cost of Mrs.Taylors purchases was $45.87 She had a coupon for 20% off the total. Find, to the nearest cent, the amount of money she will save if she uses the coupon?
asked by Hannah 
fin 200
i am really confused on what numbers to use to get the calculations on the 13 ratios
asked by kim 
Math
You can answer any 8 questions from the 12 questions on an exam. In how many different ways can you choose the 8 questions, assuming that the order in which you choose the questions is irrelevant?
asked by Rachal 
Math
The cost of Mrs.Taylors purchases was $45.87 She had a coupon for 20% off the total. Find, to the nearest cent, the amount of money she will save if she uses the coupon?
asked by Hannah 
Math7
Write and equation that could be used to find x the number of ounces in g gallons x=
asked by Justin 
Science
__ NH4NO3 (s) > __ NH2 (g) + __ HNO3 (l) Please balance equation!
asked by Ronaldo 
???
how do you make a skit on the word vexation?
asked by amy 
Calculus
find dz/dx when z= (ln 5)e^x
asked by Emily 
Physics
A box with a mass of 5 kg is lifted (at constant velocity) to a height of 3 m to place it on the shelf of a closet. How much work was required to lift the box to this position?
asked by Alex 
chemistry
If you begin with 100.0 mL of a 3.0 Molar solution of ammonium sulfate and 100mL of a 2.0 Molar solution of barium phosphate how many grams of Barium sulfate would be produced?
asked by jackie 
social studies
Questions about Henry Ford the inventor: 1. Why was Ford not satisfied with the Model T at first? 2. How would working in a factory like the Highland Park Plant be dangerous? 3. What plan did Henry come up with to make the workers happier and to reduce
asked by Kat 
math
according to data from the national safety council, the fatalaccident rate per 100,000 licensed drivers can be approximated by the function f(x)=.0328x^2  3.55x + 115, where x is the age of the driver (16< or equal to x < or equal to 88). at what age is
asked by anonymou 
physics
How fast (in ) must a centrifuge rotate if a particle 8.00 from the axis of rotation is to experience an acceleration of 117000 's?
asked by Tara 
MaTh
Is (3,2) a solution of 3x  2y = 12 yes or no? Is it no?
asked by CiCi 
Chemistry HELP!!!
If 2.5 L N2 reacts with 7 L H2, what is the theoretical yield (in liters) of NH3? Assume that the volumes of reactants and products are measured at the same temperature and pressure.
asked by Mishka 
Physcis 1
A muscle builder holds the ends of a massless rope. At the center of the rope, a 7.9kg ball is hung. Each end of the rope subsequently makes an angle of È with the horizontal. What is the tension in the rope if the angle È is 6.0°?
asked by April 
Chemistry
A helium balloon is filled to a volume of 2.88 x 10^3L at 722 mm Hg and 19 degrees Celcius. When the balloon is released, it rises to an altitude where the pressure and temperature are 339 mm Hg and 55vC, respectively. What is the volume of the balloon?
asked by Ageha 
math
you want to buy a shirt that costs $20. The sales tax is 7.25%.What is the total cost of the shirt?
asked by gerardo 
SCIENCE
MAKE A LIST OF ALL OF THE BOTTLES/FLASKS THE YOU CLASSIFIED AS BEING SOLUTIONS
asked by SANKI 
physics
an electric heater provides 2kW of power when connected to a 120 V potential difference. what is the current through the heater?
asked by Musha 
social sudies
the first kingdom in nubia was called kerma. what contact did the people of kerma have with egypt? in what ways were they liike the egyptians?
asked by Anonymous 
Geography
The people of Africa vary greatly across the continent. Thousands of different ethnic groups occupy this vast continent. In two or three welldeveloped paragraphs, suggest two ways in which ethnic groups can differ from one another besides language. Use
asked by Lulu 
Pysichal Therapy Aide
A PTA CAN ASK A SW TO HELP WITH ALL OF THE FOLLOWING EXCEPT: A. TO ASSES THE PATIENT'S HOME ENVIRONMENT AND INSTRUCT THE PATIENT AT DISCHARGE FROM THE HOSPITAL B. TO ARRANGE FOR HOME HEALTH SERVICES AT THE PATIENT DISCHARGED FROM THE HOSPITAL C. TO ARRANGE
asked by Shannon 
Geometry
find the lengths of the sides of a triangle whose perimeter is 37. The measure of the first side of the triangle is 8 less than the second side, and the second side is twice the length of the third side
asked by Zach 
MathTrue OR False Please Help!
True or False? If the inverse function of f exists, and the graph of f has a yintercept, the yintercept of f is an xintercept of f^1
asked by Steve 
calc a
derivative of; ((1+x^2)^2)sin(2x)
asked by steve 
Physics
A 2.6kg object hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 7.5° with the vertical, as shown in the figure below. Find the acceleration of the car
asked by Anonymous 
History
So, this isn't a homework assignment, but I really would like to know about US containment policy. Can someone tell me without sending me to links to research, please? I don't want to sound lazy, but because it isn't a homework assignment, I really don't
asked by Jennifer 
algebra
look first for the common factor check by multiplying if polynomial is a prime state this. y^2y+0
asked by Laura 
algebra
factor completely if polynomial is a prime state this. 10s^2+4st6t^2
asked by Laura 
statistics
Given a level of confidence of 95% and a population standard deviation of 14, answer the following: (A) What other information is necessary to find the sample size (n)? (B) Find the Maximum Error of Estimate (E) if n = 78.
asked by Tammy 
algebra
Factor completely first look for a common factor and check by multiplying If polynomialis a prime state this 27m^236+12
asked by Laura 
math
5 is to 8 as 15 is to (blank) ?
asked by alyssa 
geometry
If the perimeter of the smaller triangle is 9 cm, what is the perimeter of the larger triangle?
asked by Anonymous 
Math
5x + 10 =10y solve for y does y= 5x/10 + 1
asked by Plz Help 
Algebra
2x + y = 3
asked by Kiara 
social studies
how was it like on the middle passage for slaves??
asked by harrison 
math
how do I work the problem d=3.5t
asked by tyler 
chemistry
Write down a balanced acidbase reaction given the following reactants Reactants: NaOH(aq) + HCl(aq)
asked by jonh 
Chemistry
2 CO (g) + O2 (g) > 2 CO2 (g) The mechanism below has been proposed for this reaction; (slow) O2 + CO > CO2 + O (fast) O + CO > CO2 Based on this mechanism what is the rate law for this reaction?
asked by John 
Math
how to solve (√(2)/2) / (2/√(2)) steps too please the answer is 1 in other words it's tan(π/4)= 1
asked by Amy 
Chem
3 H2 (g) + N2 (g) > 2 NH3 (g) How many liters of ammonia gas can be produced from 10.0 L of N2 and 20.0 L of H2? Assume all gases are measured at the same temperature and pressure.
asked by James 
Physics
Small parts on a conveyor belt moving with a constant speed of 1m/s are allowed to drop into a bin. The radius R is .5m. The coefficient of friction is .25. What is the angle at which the parts start sliding off the belt???? Don't even know where to begin.
asked by Kindra 
chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?
asked by Anonymous 
chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what
asked by Anonymous 
Spanish
1. Mis abuelos viven en Manhattan. ____ apartamento es grande y bonito. a. Sus b. Su c. Nuestros d. Nuestro C? 2. Para la comida, ¿___ Evangelina y tú el pescado o el bistec? a. prefieren b. prefiero c. prefieres d. prefiere A or C? 3. ____ después de
asked by mysterychicken 
college algebra
how do you slove this problem a rope is 72 feet long is cut into two pieces the longer piece is 3 feet than twice the shorter piece. How long is each piece ???
asked by phila 
geometry
Is it possible for the geometric mean and the arithmetic meam of two numbers,a and b, to be the same? explain. can you help me answer this question? thank you
asked by mike 
Immigrant Experience
Im doing this activity which is called township in upper canada, and we each got a person whom we have to shift in their new lot. So basically Im imagining that I am that person and that Ive got my lot. My location ticket says that my concession is 12 and
asked by Sara 
math
The are of a rectangular athletic field is represented by the expression 12y^3+48y^2+24y square meters.write an algebriac expression to represent one possible set of dimensions (in the same sense''length times width'')of the althetic field. include the
asked by Nick 
CRIMINOLOGY
Describe a physical traits of the trait theories associated with criminal behavior and provide an example of a recent criminal who exhibits this trait.Might this crime be prevented in future circumstances?
asked by kathy 
Math
How do I to solve r = 11ft?
asked by Mia 
geometry
A rectangle with an area of 32 inches squared has one side measuring 4 inches. A similar rectangle has an area of 288 inches squared. How long is the longer side in the larger rectangle?
asked by Tori 
Math
5y + 3 =2y  3x + 5
asked by Plz Help 
government
congress inability to consistantly provide leadership on broad national issues is due to
asked by Anonymous 
math
John who is an amateur golfer spends 3 hours every day practicing golf. What percentage of his waking hours does John spend practicing golf if he sleeps 8.5 hours a day?
asked by joann 
math
look first for the common factor check by multiplying if polynomial is a prime state this. y^2y+0
asked by laura 
math
factor completely if polynomial is a prime state this. 10s^2+4st6t^2
asked by laura 
social studies
What would be the dangers of working in a factory like the Highland Park Plant in Henry Ford's time?
asked by Anya 
math
Factor completely first look for a common factor and check by multiplying If polynomialis a prime state this 27m^236+12
asked by laura 
college chem
Calculate the Mole Fraction of benzene in toluene if there are 5 grams of each in the mixture
asked by shelby 
trig
find x in DMS if 2sinx1=cscx
asked by claire 
Math
Solve:(√2/2)/(√2/2) steps too and i got 1 but the answer is supposed to be 1
asked by Amy 
algebra
What is the value of x so that the perimeter of the triagle is at least 57? 14 on left side x + 4 on right side 2x3 on the bottom
asked by Missy 
literature
1. An important similarity shared by walt whitman and emily dickinson are? A. Fondness for big cityiving B. obscurity during their lifetime C. Rejection by the literary community D. Abandonment of literary conventions
asked by Anonymous 
algebra 2
4xy44xz4
asked by james 
Socials  Need Help
could someone please have a look at my post, I really need help.
asked by Sara 
algebra
Samantha's homework is to determine the dimensions of her rectangular backyard. She knows that the length is 10 feet more than the width, and the total area is 144 square feet. Write an equation that Samantha could use to solve this problem. Then find the
asked by Anonymous 
Math
is the slope of J(4,6), K(4,2) 4?
asked by Mike 
spanish
con dos amigas / salir a almorzar / esta persona / a las 12.00
asked by jammy 
chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what
asked by Anonymous 
math
mr.king, the owner of good morning groceries, wants to make a fence aea to put his carts in at night.he has 68 feet of fencing.what is the largest rectangular area he can fence? ( use only whole numbers)
asked by jay 
chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what
asked by Anonymous 
Physics
A 2.6kg object hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 7.5° with the vertical, as shown in the figure below. Find the acceleration of the car
asked by Anonymous 
Business
4 each of examples identify financial decision you have made or might have to make in the future. In the last column, tell what effect this decision may have on ur personal resources. (Personal resources include things such as money, time and health.)
asked by Anonymous 
chemistry
expalin how Henry's law help a patient stay alive?
asked by kerri 
business accounting
what dose Lack of prejudice mean
asked by Denese 
pre algebra
solve and simplify 6 to the 4th power * 6 to the 2nd power
asked by john 
Chem 262
What solvents would you use to isolate these compounds? Malonic Acid Salicylic acid Ethyl4aminobenzoate
asked by Sandra 
chesmistry
how many molecules of water are produced when 3.8L of HN4NO3
asked by treat 
business accounting
can someone help me with some information on each one of this. Employee Receives Either Rewards or Punishments Employee Identifies Need Employee searches for ways to satisfy these needs Employee Reassess Need Deficiencies Employee Performs Employee Selects
asked by Denese 
english (poetry)
i have to write an acrostic poem on the word black...help me please and thank you.
asked by blanca 
physics
If the ball is in equilibrium when the string makes a 25.9 ◦ angle with the vertical as indicated, what is the net charge on the ball? Answer in units of µC. i know how to do this if i had the balls mass and the electric field or some other information,
asked by Rachel 
physics
As soon as a traffic light turns green, a car speeds up from rest to 46.0 mi/h with constant acceleration 8.50 mi/hs. In the adjoining bike lane, a cyclist speeds up from rest to 24.0 mi/h with constant acceleration 12.00 mi/hs. Each vehicle maintains
asked by james 
Math/Chem  Very EASY
What volume of lead (of density 11.3 g/cm3) has the same mass as 304 cm3 of a piece of redwood (of density 0.38 g/cm3?(Answer in units of cm3. Okay, so this is like testing us over the basics, but I really can't get the answer! I tried everything...
asked by ND 
science
What is the kinetic energy of a 14 kg dog that is running at a speed of 9.0 m/s (about 20 mi/h)
asked by Renee 
science
A microwave oven has a power requirement of 1248 W. A frozen dinner requires 6.9 min to heat on full power. (a) How much electrical energy (in kWh) is used? (b) If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?
asked by Renee 
chemistry
What volume of water would be required to dilute a 10.0 mL 0.650 M solution of calcium sulfate to create 0.25 M solution, what would the volume of the new solution be?
asked by Elaine 
Composition
Identify the main purpose of a persuasive essay and the elements necessary for it to be effective. Above is the question I had to answer. Here is what I wrote. I am looking for a second opinion if it reads well and covers the question adequately. Thanks...
asked by Jim 
Physics
a plane is flying at a velocity of 5500 km/hr, 55 degrees north of east. How far EAST has it traveled after 4 hours? How far North has it traveled after 4 hours?
asked by Sara 
math209
4x10^8/2x10^30
asked by john 
chemistry
What would the wavelength of radiation whose frequency is 5.75*10 to the 9th cycles per second be? Name the type of radiation it is?
asked by Elaine 
statistics
Find the number z (± 0.01) such that 46% of all observations from a standard Normal distribution are greater than z:
asked by sugar 
Physics
How fast (in rpm ) must a centrifuge rotate if a particle 8.00 from the axis of rotation is to experience an acceleration of 117000g's?
asked by Sam 
math
Factor completely first look for a common factor and check by multiplying If polynomialis a prime state this 27m^236+12
asked by laura 
Ms. Sue
Ms. Sue could you please have a look at my previous post. Thanks:)
asked by Sara 
Physics
Sketch the velocity vs. time graph for an object that: • from 0 to 2 seconds has moved with constant velocity of 3 m/s • from 2 to 5 seconds was at rest • from 5 to 10 seconds increased its velocity, reaching 5 m/s at t =10 s. Could you please help
asked by Kayla 
geometry/help
Is it possible for the geometric mean and the arithmetic meam of two numbers,a and b, to be the same? explain. can you help me answer this question? thank you
asked by mike 
physics
(a) The sound of the splash is actually heard 2.2 s after the rock is released from rest. How far below the top of the well is the surface of the water? The speed of sound in air (at the ambient temperature) is 336 m/s.
asked by jammy 
MAth
Name two numbers that can be equally divided by 4 and 6
asked by Tara 
physics
Kathy Kool buys a sports car that can accelerate at the rate of 5.00 m/s2. She decides to test the car by racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.00 s before Kathy. Stan moves with a
asked by chuikia 
physics
If the ball is in equilibrium when the string makes a 25.9◦ angle with the vertical as indicated, what is the net charge on the ball? Answer in units of µC.
asked by mayra 
Algebra 2
help with a question x+2/x4 + x^2 + 6 I am not certain how to solve this problem at all
asked by Jackie 
science
A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 126 lb person burn during 7 hours of sleep? (Note
asked by Renee 
Science
Calculate the Mass of C6H12O6 needed ot generate 2575 KJ of energy
asked by Thomas 
Math
Amanda will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $75 and costs an additional $0.40 per mile driven. The second plan has no initial fee but costs $0.60 per mile driven. How many miles would Amanda
asked by Ilene 
english/ grammar
would you say: her aspiration of freedom or her aspiration for freedom ?
asked by Haley 
physics
A hard rubber ball, released at chest height, falls to the pavement and bounces back to nearly the same height. When it is in contact with the pavement, the lower side of the ball is temporarily flattened. Suppose the maximum depth of the dent is on the
asked by chuikia 
physics
A parallel plate capacitor is made of two 3.0 cm x 3.0 cm square plates that are separated by 1.0 mm are connected to a12.0 V battery. If and electron is released from the negative electrode, what speed will it reach by the time it arrives at the positive
asked by So Confused 
Physics
A proton is moving toward a charge of + 2.8 nC. On its way in to the charge it passes Point B at 4.5 cm from the charge and then passes Point A at 1.2 cm as it gets closer to the charge. a. What is the potential difference between points B and A? b. What
asked by So Confused 
Physics
Two conducting spheres are connected by a thin wire and are in electrostatic equilibrium. The diameter of the smaller sphere is 3.0 cm and the diameter of the larger one is 8.0 cm. If the smaller sphere is found to be charged to 2.0 nC, what is the charge
asked by Mr. Science 
math
hey everyone, i have a question, by looking at a particular graph, how will you estimate the amount that is asked in a problem? (e.i. revenue, profit, stocks, etc) Do you just guess or something? thank you!
asked by anonymous 
Physics
There are 3 charges situated on the xaxis: a +3.0 nC charge at (3 cm, 0), a +4.0 nC charge at the origin (0, 0) and a 6.0 nC charge at (3 cm, 0). What is the electric potential at the point (0, 3 cm) on the yaxis?
asked by Mr. Science 
Physics
A proton orbits a negatively charged wire that has a linear charge density of 8.0 x 10 9 C/m. What speed must the proton have to maintain a circular orbit at 1.3 cm?
asked by Please Help!!!!!!!!!!! 
Physics
Two 18.0 cm diameter charged rings face each other, 22.0 cm apart. The left ring is charged to + 40.0 nC and the right ring is charged to + 15.0 nC. What is the force on a + 0.50 nC charge placed at the mid point?
asked by Please Help!!!!!!!!!!! 
physics
As soon as a traffic light turns green, a car speeds up from rest to 46.0 mi/h with constant acceleration 8.50 mi/hs. In the adjoining bike lane, a cyclist speeds up from rest to 24.0 mi/h with constant acceleration 12.00 mi/hs. Each vehicle maintains
asked by chuikia 
Physics
A 3.2 cm diameter plastic sphere is charged to 19.0 nC. What orbital frequency must a proton have to maintain a circular orbit around the sphere 2.4 mm above its surface?
asked by Please Help!!!!!!!!!!! 
Physics
A proton is launched from the surface of a 2.0 cm diameter glass sphere that is charged to 25.0 nC. What is the speed of the proton when it is launched so that it just escapes the influence of the charge of the glass sphere?
asked by Please Help!!!!!!!!!!! 
Chemistry 125
What is the maximum mass of water that can be released by heating a 6.895 g sample of nickel(II) sulfate heptahydrate?
asked by Andrew 
Algebra
How do you simplify (r+3)^3?
asked by Rocky 
Calculus
Find the volume of the solid formed by rotating the region enclosed by y=e^(2x)+3 y=0, x=0, x=0.9 about the xaxis.
asked by Anonymous 
chemistry
What is the percent by volume of isopropyl alcohol in a solution that contains 24 mL of isopropyl alcohol in 1.1 L of water? this the other one i need help with and thanks for the last help
asked by Anonymous 
College history
Explain the meetings that resulted in the Japanese seeing "RollsRoyce,RollsRoyce,Ford" and how was this part of Americans "clamoring for the outlawry of war? I need help with this question because I don't understand the question and what exactly it is
asked by Karla 
french
Ou'vit le garcon? mean in english?
asked by ANITA 
MAth
Pat Kan owns a factory that manufactures souvenir key chains. Her weekly profit (in hundreds of dollars) is given by P(x)=2x^2+60x120, where x is the number of cases of key chains sold. a) what is the largest number of cases she can sell and still make a
asked by anonymous 
physics
The height of a helicopter above the ground is given by h = 2.90t3, where h is in meters and t is in seconds. After 2.35 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?
asked by chuikia 
physics
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 81.0 m/s at ground level. Its engines then fire and it accelerates upward at 4.10 m/s2 until it reaches an altitude of 940 m. At that point its engines fail, and
asked by chuikia 
literature
In "A Pair of Silk Stockings," the silk stockings are a symbol of
asked by Anonymous 
math
Let f(x)= x^22x. Find f(1+h)f(1) / h How do you solve this?
asked by Sara 
health
The level of chloroform which is considered toxic,?
asked by Bacteria 
5th Grade Math
There are about 3,400 species of frogs and toads, and scientists tell us that they represent 90% of the amphibians in the world. Using this information, what is total number of amphibians scientists believe are in the world. (Round your answer to the
asked by Janice 
Algebra
Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?
asked by Donna 
Physics
I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the
asked by Cecille 
geography
describe the varius type of forest vegetation. give good example describing the location and type of plants.
asked by mat 
Physics
You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses
asked by Roberto 
Math
Is the time it takes to run a 100meter race a function of the speed you run?
asked by Please help 
Physics
A guitar string, destined to be an upper E string, has length 100 cm and mass 0.400 g. a. What is its mass per unit length? u = m/L = 0.004 g/cm b. What length of this string should be used on a guitar if the fundamental frequency is to be 330 Hz and its
asked by Nick 
chem
which of the following is insoluble (1)calcium chloride (2)ammonium phosphate (3)barium sulfate (4)potassium chromate
asked by lisa 
physics
You are traveling in a convertible with the top down. The car is moving at a constant velocity 22.7 m/s, due east along flat ground. You throw a tomato straight upward at a speed of 14.9 m/s. How far has the car moved when you get a chance to catch the
asked by dyer 
science
My son is in a group with two other boys and they need to construct a model of an earthquake resistant house. Can you give me a good website with some ideas on materials they should use and pointers on how to construct it? Or you might have some helpful
asked by Mom needs help 
Chemistry
which sample of matter is a mixture (1)H2O(s) (2)H2O(l) (3) NaCl(l) (4)NaCL(aq) please explain the answe !
asked by Alex