Questions Asked on
January 24, 2011

physics
three point charges are placed at the following points on the xaxis: +2µC at x=0, 3µC at x=40 cm, 5µC at x=120 cm. Find the force (a) on the 3µC charge (b)on the 5µC charge.
asked by Joanna Luz 
physics
A point charge with charge q1 is held stationary at the origin. A second point charge with charge moves from the point (x1,0) to the point (x2,y2). How much work is done by the electrostatic force on the moving point charge? Express your answer in joules.
asked by Cassie 
Geometry
1. MO bisects LMN, LMN = 5x23, LMO = x+32. Find NMO. >>I got the answer 45.75 but I got it wrong. I do not know how to solve this question and I have tried all that I know. Please help..
asked by Needs Help 
chemistry
An unknown metal is found to have a density of 19.300 g/cm^3 and to crystallize in a bodycentered cubic lattice. The edge of the unit cell is found to be 0.31627 nm. Calculate the atomic mass of the metal. Im not sure how to approach this problem...when i
asked by sam 
Biochemistry
What is the concentration of HNO3 in a solution that has a pH of 3.4?
asked by Freddy 
Math (Calculus AB)
For x≠0, the slope of the tangent to y=xcosx equals zero whenever: (a) tanx=x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help. I have a final tomorrow and I am working diligently to understand every type of problem that may show up on my test. Thank you
asked by Jake 
CP Geometry
What do you call it when the nurse gives you a shot you hardly feel? s.r. = square root s.r.5 * s.r. 15. my choices are 5s.r.3, 20s.r.5, 4s.r.10, 3s.r.2, 3s.r.10, 2s.r.6, 9, 5s.r.6, 10s.r.3.
asked by Amber 
math
the answer to this worksheet!!:what do you call drilling 4,876 holes?please answer now !!!!!
asked by bella 
Chemistry
If 0.630 grams of HNO3 (molecular weight 63.0) are placed in 1 liter of distilled water at 25 degrees C, what will be the pH of the solution? (Assume that the volume of the solution is unchanged by the addition of the HNO3.) A. 0.01 B. 0.1 C. 1 D. 2 E. 3
asked by Sharon 
math
What Do You Call Drilling 4,876 Holes?
asked by bella 
math
In a motorcycle race, one lap of the course is 650 m. At the start of the race, John sets off 4 seconds after Tom does, but John drives his motorcycle 5m/s faster and finishes the lap 2.5 seconds sooner than Tom does. What is the speed at which each of
asked by Taylor 
physics
A blowdryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blowdryer is 12 A, and that of the vacuum cleaner is 5.5 A. Determine the power consumed by the blowdryer. Determine the power consumed by the vacuum
asked by Anonymous 
Math
What is the probability that a 76% freethrow shooter will miss his next free throw?
asked by Chae 
Chemistry
The following information is given for ethanol, C2H5OH, at 1atm: boiling point = 78.4oC Hvap(78.4oC) = 38.6 kJ/mol melting point = 115oC Hfus(115oC) = 5.02 kJ/mol specific heat liquid = 2.46 J/goC At a pressure of 1 atm, what is H in kJ for the process
asked by Jordan 
Chemistry
Calculate the concentrations of S2O8 2, I, S2O32 2 in moles per litre of reaction mixture given the following: 20mL of 0.1 M (NH4)2S2O8 added to: 20mL of 0.2M KI 10mL of 0.01M Na2S2O3 5mL 0.2% starch Also, calculate (delta)S2O8 2 that is, how much
asked by Rachel 
Help Please!
Charges of −4q are fixed to diagonally opposite corners of a square. A charge of + 5q is fixed to one of the remaining corners, and a charge of + 3q is fixed to the last corner. Assuming that ten electric field lines emerge from the + 5q charge, sketch
asked by Brian 
social studies
what is the other name for machu picchu?
asked by kahlitah 
math
how to find the height of a trapezoid with median 12 and area 84
asked by rachel 
Literature Frankenstein Novel
Please check my answer to this question: Consider the protagonist in the novel that you read this semester. In a response of no fewer than three paragraphs, explain how this character changes over the course of the novel. Include examples of these changes
asked by Kayla 
Algebra 2
a chemistry lab assistant wants to prepare 10 liters of 48% acid solution. in stock he has 80% and 40% acid solutions. how many liters of each in stock solution should he mix to prepare a 10liter mixture?
asked by Jennifer 
The Pigman
In the book the pigman who said "Actually i hate school, but then again most of the time i hate everything."
asked by Anoymous 
chemistry 1310
The decomposition of nitrosyl bromide is followed by measuring total pressure because the number of moles of gas changes; it cannot be followed colorimetrically because both NOBr and Br2 are reddish brown: 2 NOBr(g) ® 2 NO(g) + Br2(g) Use the data in the
asked by shamia 
Biology
10. In some cats the gene for tail length shows incomplete dominance. Cats with long tails and cats with no tails are homozygous for their respective alleles. Cats with one long tail allele and one no tail allele have short tails. For each of the following
asked by Tiara 
Physics
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.5 m/s2 for 3.6 seconds. It then continues at a constant speed for 10.1 seconds, before applying the
asked by Hayls 
organic chemistry
in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? For example, for 1butene, the percent composition is low in E1 but very high in E2.
asked by Yoo 
chemistry  grade 9
calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO > CH3OH.
asked by lisa 
Alliedhealth
A woman is brought into an emergency room after a severe automobile accident. She’s unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. The doctor explains the wife’s condition to
asked by Melinda 
6th grade math
Form and equivalent division problem for 5 / 1/3 by multiplying both the dividend and divisor by 3. Then find the quotient. IS it 5 / 3/9 Do I finish by mutliplying 5/1 x 9/3(reciprocal)?
asked by Suzanne 
physics
How long does it take a plane, traveling at a constant speed of 160 m/s, to fly once around a circle whose radius is 3450 m?
asked by lucey 
chemistry
calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO  CH3OH.
asked by lisa 
math
6 men have 6 bags each, each one has 6 cats and they had 6 kittens how many legs in all
asked by love 
Chemistry
Calculate the joules of energy involved when 11 grams of water at 10.0 degrees Celsius cools and then freezes at 0.0 degrees Celsius. How many kilocalories are required to raise the temperature of 305 gtams silver from 30 degrees Celsius to 70 degrees
asked by Palak 
Algebra 1
A line has slope 4/3.Through which two points could this line pass?
asked by Ian Thomas 
english
huh??? If the form(s) of documentation you listed in the previous problem is (are) missing, why will an assignment be plagiarized?
asked by Anonymous 
physics
1. How does a Van de Graaff Generator work? What is the magnitude of the electric field inside the dome of a charged Van de Graaff generator? 2. How does the charge on one plate of a capacitor compare with that on the opposite plate? 3. How does a
asked by beauty 
English
Determine whether the statement represents a progressive view or a traditional view of literature. 1.There is no such thing as classic literature. 2.Literature can only be understood in the context of history. 3.Harry Potter books are not literature.
asked by Ron 
Physics
An 75 kg man drops from rest on a diving board −3.1 m above the surface of the water and comes to rest 0.6 s after reaching the water. The acceleration due to gravity is 9.81 m/s2. What force does the water exert on the man? Answer in units of N.
asked by Michael N. 
Grammar! please check my answers!
Choose the answer that describes how to correct the misplaced phrase. The suspect is a tall man with a beard weighing about two hundred pounds. Move with a beard to the beginning of the sentence. Place weighing about two hundred pounds right after man.
asked by Haily 
geometry
Corresponding sides of 2 triangles are 6 & 15; if the perimeter of the smaller triangle is 22, what is the perimeter of the larger triangle?
asked by B.J. 
Chemistry
What mass of hydrogen peroxide must decompose to produce 0.77 grams of water(H2O)?
asked by Anonymous 
math
With regards to question J: The variables x and y are connected by the equation y = x2  x  5. Some corresponding values of x and y are given in the table below. x 4 3 2 1 0 1 2 3 4 5 y 15 7 a 3 5 b 3 1 7 15 (a) Calculate the values of a and b (b)
asked by jun 
English!! Double check my answer?
Choose the answer that identifies the underlined word. Well, I must say that your ideas are quite creative. ("creative" is underlined) direct object indirect object x objective complement predicate adjective
asked by Haily 
math
A.use the distributive property to write an expression that is equivalent 3(x +  8) if the coefficient of the variable is increased by 10, what would the new expression be after you apply the distributive property?
asked by karon 
spanish
Is this the correct spanish prepositional pronoun in this sentence? Chicos, voy a hablar con la señora Perales, en un momento estoy con ellos?
asked by Anonymous 
chem
Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earth¡¯s oceans, because of their high heat capacity, can absorb heat and therefore act to
asked by marie 
Math
A jet leaves an airport traveling at a steady rate of 600 km/h. Another jet leaves the same airport 3/4 hr later taveling at 800 km/$ in the same direction. How long will it take the second jet to overtake the first.
asked by Jenny 
Chemistry
How much energy (in kilojoules) is released when 12.8 g of steam at 130.0 C is condensed to give liquid water at 73.5 C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/(K*Mol)for the liquid and 33.6
asked by Kevin 
Literature Frankenstein
Consider the protagonist in "Frankenstein". Explain how Victor Frankenstein character changes over the course of the novel, Frankenstein. Please include examples of these changes in the response. I have to write no fewer than three paragraphs, so please
asked by Kayla 
latin
how would you translation BElimicus, !@#$%^& De testanmento Audivisset, adeo attonitus erat ut ninil respondere posset, salvius autem haec addidit ridens.
asked by Anonymous 
Physics
A 0.48 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 24 m/s. What impulse was delivered to the ball by the player?
asked by Michael N. 
math
if 8m cloth costs RS 250 find the cost of 5.8m of the same cloth
asked by Anonymous 
physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 60 kg, who is 0.5 m from the baby. 1 N Which exerts more gravitational force on the baby, Mars or the obstetrician? 2 obstetrician Mars both exert the same
asked by taylor 
math
How much limestone (CaCO3) in kilograms would be required to completely neutralize a lake with a volume of 5.2 x 10^7 L lake containing 5.0 x 103g of H2SO4 per liter?
asked by Anonymous 
physics
pls help me solve this problem.. charges of +2.0, 3.0 and 8.0µC are placed at the vertices of an equilateral triangle of a side 10 cm. Calculate the magnitude of the force acting on the 8µC charge due to the other two charges.
asked by Joanna Luz 
geometry
George is building a model of his father's sailboat with a scale factor of 1:32. The actual sail is in the shape of a right triangle with a base of 8 meters and a hypotenuse of 13 meters. What will be the approproximate perimeter of the sail on the model
asked by Marjorie 
Geometry Ms. Sue help please?
Ms. Sue, can you help me again? you replied to my question but i still need a bit of help Small Pizza radius 6 in. cost $9.75 Medium radius 8in cost $12 Largediameter 20 in cost $16.50 The edge is stuffed with cheese, and its the best part of the pizza/
asked by Skye 
Pre Algebra
The ratio of the length of a rectangular field to its width is 10:7 if the width of the field is 70 meters find the perimeter of the field.
asked by Izabel 
food styles of catering
At a cocktail party,you can expect the average person to eat how many hors d'oeurves in two and a half hours? A 8 B 10 C 15 D 20
asked by sarah 
physics
A point charge of 7.9 microcoulomb is at the origin. What is the electric potential at (3.0,  3.0)?
asked by Cassie 
calculus
Consider a car whose position, s, is given by the table t(s) s(ft) 0 0 .2 0.35 .4 1.8 .6 3.8 .8 6.5 1 9.6 Estimate the velocity at t=0.2
asked by Laurin 
Physics
After driving 20.0 km west, a car turns southwest and proceeds another 80.0 km. What is the displacement (in kilometers) of the car from the point of origin (magnitude only)?
asked by Nick 
Biology
In each set up the dialysis tubing contains a solution of 30% glucose and safranin. However, the set ups differ in the contents of the beaker. The control set up has the same solution in the beaker while in the experimental set up it contains just water.
asked by Jason 
Science
Would you expect orange juice to be more dense than water? Explain.
asked by Micheal 
marketing
what special advantages and potential problems did 3m have in introducing a new highlighter with flags product for college students in 2004
asked by jo 
statistics
: A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores
asked by Anonymous 
Human service
Who developed the behavioral learning theory and explain the theory? Did John Watson, Ivan Pavlov and B.F. Skinner develop the behavioral learning theory? Also where can I found a explanation on this theory? Thank you
asked by patiance 
Fine Arts
2. Miniature painting continued into the Romanesque period. These paintings were found a. on the top of columns b. in churches c. in religious manuscripts d. monasteries 4. Which of the following artists used small flat planes of colors to compose a look
asked by mysterychicken 
devry
A small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked,
asked by pp 
Chemistry
Why was Wohler's synthesis of urea significant to the field of carbon chemistry? Please help. Thank you.
asked by John 
chem/math
How much heat would be required to warm Earth¡¯s oceans by 1.0 ¡ãC? Assume that the volume of Earth¡¯s oceans is 137 x ¡¼10¡½^7 ¡¼km¡½^3 and that the density of sea water is 1.03 g/cm3. Also assume that the heat capacity of seawater is the
asked by marie 
Physics
An airplane lands and starts down the runway at a southwest velocity of 46 m/s. What constant acceleration allows it to come to a stop in 1.1 km? PLEASE HELP ME WITH THIS QUESTION AND PROVIDE AN EXPLANATION IF POSSIBLE!!!! THANK YOU!
asked by MB 
Chemistry
a dose of asprin of 5.0mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. Calculate the number of milligrams of asprin that should be administered.
asked by Jamie 
organic chemistry
in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? dehydration of a secondary alcohol proceeds readily with the presence of strong acid and proceeds with E1 mechanisms. Removing product from chemical system
asked by Yoo 
Physics
Two charges are D = 1.5 m apart and lie on the xaxis. What must be the magnitude of the charge on the right one, Q2, (in C) so that the electric field is zero at x = 1.05 meters. Let Q1 be at the origin and have a charge 6 C.
asked by Nadya 
Math
Use the Factor Theorem to determine whether x3 is a factor of P(x)=2x^35x^9 . Specifically, evaluate P at the proper value, and then determine whether x3 is a factor. P(_)=__ also pick which one applies x3 is not a factor of P(x) x3 is a factor of
asked by Joe 
Math Please Help
Solve for v. v+6/5=3/5v7/3 Simplify your answer as much as possible.
asked by Jen 
Physics
A positive charge +q is located to the left of a negative charge q. On a lne passing through the two charges there are two places where the total potential is zero. The first place is between the charges and is 3.8 cm to the left of the negative charge.
asked by Sam 
U.S.History
After the Civil War, the southern eceonmy was primarily industrial agrarian marine both a and b In my book, it mentions both industrial and agrarian but then it states the econmy was largely agrarian so I'm not sure what I should put down. Which of the
asked by Ray Scholz 
calculus
if f x is the slope of a trail at a distance of x miles from the start of the trail what does the definite integral of (f)xdx when x=3 to x=5 represent
asked by Jasmine 
social studies
describe life on a seigneury on the St. Lawrnce River, during the Iroquois wars.
asked by alanna 
chemistry
What is the concentration of chloride ion when 75ml of 4.50m NaCl is mixed with 125mL of 1.42M FeCl3?
asked by Ericaplease help! 
uOFp
Imagine you are conducting fieldwork and discover two groups of mice living on opposite sides of a river. Assuming that you will not disturb the mice, design a study to determine whether these two groups belong to the same species
asked by t 
math
In a motorcycle race, one lap of the course is 650 m. At the start of the race, John sets off 4 seconds after Tom does, but John drives his motorcycle 5m/s faster and finishes the lap 2.5 seconds sooner than Tom does. What is the speed at which each of
asked by Taylor 
Algebra 1
Find the intercept and then use them to graph the equation 1.4x13y=3.64. I just can't seem to find the intercept or to even solve the equation. Please help! Thank you so much.
asked by Esther 
math
how much heat would be required to warm Earths ocean by 1.0 degrees C assuming that the volume is 137*10^7 km ^3 and the density of sea water is 1.03 g/cm 3. also assume that the heat capacity of seawater is the same as that of water
asked by marie 
math 10
how do i work out the answer to: "how many integer values are there for k for which 4x^2 + kxy  9y^2 is factorable?"
asked by jordan 
Math 157
Copy each equation in Exercises 31–33. Replace the boldface italic letter with a number that shows the relationship indicated in the table. Then copy each table and complete it by using the corresponding equation. 32. y = x + b x y 1 0 2 1 8 7 10 ? 20
asked by Rena 
ESSAY NEED HELP PLEASE
thesis satement why abortion should be illegal
asked by girly ggsk 
Math
how do you convert 0.625 into a fraction
asked by Jason 
math/ CIRCUMFERENCE of a circle
A person has a measuring wheel that records the distance the wheel is rolled along the ground. The circumference of the wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1mi=5280 ft)?
asked by Suzanne 
efdtef
what conclusion based on the effectof temp on seedling growth can be drawn from this chart
asked by yasmin 
algebra
a rectangular sheet of plywood is seven times longer than its width,write an simlify an expression for the perimeter of the rectangle in terms of the width.
asked by jack 
Chemistry
72.0 ml of a 1.50 M solution is diluted to a volume of 288 mL. A 144 mL portion of that solution is diluted using 185 mL of water. What is the final concentration?
asked by Anonymous 
Chemistry
The decomposition of IBr(g)into I2 (g) and Br2 (g) is first order in IBr with k = 0.00255/sec. (a)Starting with [IBr] = 1.50M, what will [IBr] become after 2.50 minutes? (b)How long, in minutes, will it take for [IBr] to go from 0.500M to 0.100M? (c)What
asked by David 
Literature Frankenstein
Consider the protagonist in "Frankenstein". Explain how Victor Frankenstein character changes over the course of the novel, Frankenstein. Please include examples of these changes in the response. I have to write no fewer than three paragraphs, so please
asked by Kayla 
com170
CAN YOU TELL ME IF I HAVE FIVE ADVERBS FIVE ADJECTIVES AND FIVE PRONOUNS I recently had a serious talk with my sister about her personal finance; she wants to be able to buy a new home this year. We carefully went over all her finance, while doing this we
asked by angela 
PreAlgebra
If 4 liters of motor oil cost $3.88, what is the price for 1 liter? I'm supposed yo set up proportions. This is how I set it up: $3.88/4 liters • 1 liter/p p= the price for 1 liter Please tell me if I set it up right and how to solve.
asked by Joel 
math
The Aesthetic Garden Problem. A landscape architect wants the length of a rectangular shaped flower garden to be twice the width. The garden should have a total area of 288ft^2. what are the dimensions of the garden?
asked by Rena 
physics
Problem: Two blocks of metals have the same mass. The first block has a volume of 827 cm^3 and a density of 4.50g/cm^3.Thesecond block has a volume of 193cm^3. What is the density of thesecond block ? Solution: (1) 4.50x827=3720 (2)3720/193=19.3 1. Give an
asked by andrea 
math chem
Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earth¡¯s oceans, because of their high heat capacity, can absorb heat and therefore act to
asked by Anonymous 
mathematics
1.An aquarium has the shape of a rectangular prism.It's length is 80 cm.its width is onehalf of the length and its height is threefourths of the length.What is the volume of the aquarium in cm3?
asked by maricel 
College Chemistry
A 32.85{\rm g} sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 46.00 mL. The solid and toluene together weigh 58.56 g. The density of toluene
asked by Nicole 
math check me
Find the slope of the line graphed below. Points are (4,1) and (4,3) Is the slope 4/8 ?
asked by Joe 
physics
1. What is an electric dipole? 2. A balloon may easily be charged to several thousand volts. Does that mean it has several thousand Joules of energy? Explain.
asked by beauty 
Physics
A metal sphere of radius R = 28 cm carries a total charge Q = 0.5 microC. What is the magnitude of the electric field (in N/C) just outside the sphere?
asked by Nadya 
Grammar! Am i correct?
Choose the answer that identifies the underlined word. Well, I must say that your ideas are quite creative. ("creative" is underlined) direct object indirect object objective complement x predicate adjective
asked by Kayla 
Chemistry
Which of the following is the BEST explanation for why a catalyst speeds up a reaction? A) The catalyst increases the concentration of the products B) The catalyst decreases the total pressure in the container. C) The catalyst raises the temperature of the
asked by Howard 
physical science
The density of copper is 8.92 g/cm cubed. if you plotted the mass of copper in grams verses the volume in cubic cm what would the slop of the line be?.
asked by misti 
physics
Calculate the force of gravity on a 12 kg mass if it were 6.4 106 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)
asked by Anonymous 
social studies
How did the outcome of the meeting at Vincennes between Harrison & Tecumseh affect future events?
asked by austin 
algebra
1.)Twice a number is 28
asked by Eve 
Math
A loan of $37,000 is made at 3%interest, compounded annually. After how many years will the amount due reach $49,000 or more? (Use the calculator provided if necessary.) Write the answer as a whole number. ****I get 1.03^10 = 49,724.91 So is the answer 10
asked by Jen 
math
the length of this rectangle is 3 cm greater than its width ,as represented in this figure below . the total perimeter is greater than 24 cm. rectangle under bottom* __________ __________ w+3 A. write the inequality that could be solved to find w,the width
asked by karon 
math
i only need help on these two: *2/3y=10+4x 5x=1/3y8 *5x=4y30 2x+3y=12 DIRECTIONS:use linear combinations to solve the system of linear equations.. thanks :)
asked by HELP me please 
density and density error (check calculations)
Calculate the density of earth and its density error d=m/v where m = 6.00*10^24kg and v = (4/3)(pi)(6359000)^3 = 1.07709...*10^21 m^3 therefore d=6.00*10^24/1.07709...*10^21 m^3 d = 5570.5254...kg/m^3 using the sig fig rule, in division and multiplication
asked by Farah 
Pre algebra
A Car travels at 44 feet Per second. What is this speed in miles Per. Hour
asked by Johan 
English 9
Hey, I made a thesis for my essay, but is it any good? Make any fixes to it if possible. Thanks! :) In general, parents often provide emotional support for their children, and also will have to accept aspects and interests of their children. In the works,
asked by Jadon 
math
A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 x ¡¼10¡½^7 ¡¼mi¡½^2 in diameter, while the diameter of the 2002 hole was 6.9 x ¡¼10¡½^6 ¡¼mi¡½^2 Calculate the difference
asked by katie h 
American History
What is the significance of providing an official charter, such as was given to Sir Walter Raleigh by Queen Elizabeth?
asked by PLEASE HELP!!! 
math
Working on exploring algebra: Whats the Rule I understand the rules of In and out but cannot find rule with variable? Do I make up my own because the in and out equations are all correct. Please help. Ex. In 2 out 6 rule is add 4 what is rule with
asked by claire 
math
write the expression that can be used to find the area of a polygon made of triangles with an area of n square units each
asked by ronald 
physical chemistry
The freezing point of a sample of abnormal blood was found to be 0.402 degree celsius. Estimate its osmotic pressure at 37 degree celsius. Kf(water)=1.86
asked by yogita n sarki 
Geography
This is a question about acid rain, in Canada in particular. Acid rain is an issue in eastern Canada, but not as prevalent in western Canada, due to the fact that the east is more heavily populated and industrialized, so... If acid rain fell evenly across
asked by cel 
Chemistry
Which of the following is the BEST explanation for why a catalyst speeds up a reaction? A) The catalyst increases the concentration of the products B) The catalyst decreases the total pressure in the container. C) The catalyst raises the temperature of the
asked by Howard 
math
which of the following sums is larger and by how much? 1. 7 over Sigma 15/4(pi/10)^n 2. 11 over Sigma 17/4(4/13)^n please help me with the steps on how to figure this out! thanks
asked by jackie 
physics
1.How does a lightning rod work? What is the purpose of a lightning rod? 2.How does an electrically polarized object differ from an electrically charged object?
asked by beauty 
Physics
Find the electric field (in N/C) at a point r =1.4 m above a point charge Q= 78 C. Take upwards to be positive.
asked by Nadya 
Math (Calculus AB)
If y=cos^2xsin^2x, then y'= a) 1 b) 0 c) 2(cosx+sinx) d) 2(cosx+sinx) e) 4(cosx)(sinx) I thought the answer was C but the answer key says it is E. Please help. Thanks in advance.
asked by Jake 
dr bob
how much heat would be required to warm Earths ocean by 1.0 degrees C assuming that the volume is 137*10^7 km ^3 and the density of sea water is 1.03 g/cm 3. also assume that the heat capacity of seawater is the same as that of water
asked by marie 
Math
A model car is made to a scale of 2 to 25. If the model is 17 inches long, how long is the actual car?
asked by Mark 
gggg
what are the equation of a line through (8,3) and passing distance square root of 10 from (3,2)
asked by geometry 
Chemistry
what is the molecular weight (G/mol) of a diprotic acid 0.43 sample that needed 35.46 ml of 0.100 M of NaOH solution to reach a phenolphthalein point?
asked by Judy 
Chemistry
A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?
asked by Hunter 
C++ if else problem, please look
It compiles but it doesn't work. can you tell me what i did wrong? //Sonny Hinh, variable program, assignment 2 #include using namespace std; int main () { char gender; int age, bmi, dose1, dose2; double dose3, dose4; dose1 = bmi * 2; dose2 = bmi * 2 + 13;
asked by sonnytsn 
math
in 5 years art will be twice as old as ben. 5 years ago art was 3 times as old as ben. How old are they?
asked by Emily 
chemistry
Can anyone tell one molecula water HOH with how maximum number of other molecule can joined together with Hydrogen bond? and CH3COOH how is joined with HOH with Hydrogn bon?Thanks
asked by Defrim 
physics
1. How does the charge on one plate of a capacitor compare with that on the upposite plate? 2. Why is that you are safe from a lightning storm if you are inside an automobile?
asked by beauty 
Mathword problem
To rent a certain banquet hall, there is a reservation fee of $4200.00 and an additional fee of $180.00 per hour. The Russell family wants to spend at most $5100.00 on renting the hall. What are the possible amounts of time for which they could rent the
asked by Rachal 
poetry
i have to write a poem about a food and i chose mac and cheese, it has to have 4 lines with end rhymes and i have the first three lines, can you please help me finish off the last one line. this what i have so far... 1.delicious taste of mac and cheese
asked by alanaR. 
ap chem
1)determine the molality for an antifreeze solutions. Kf for water is 1.86 C/m in the experiment we found the freezing point of the antifreeze it was 1.2 C 2) Determine the molar mass. 5.00g of antifreeze/50g of water 3)calculate percent error.
asked by kelly 
geometry
The rectangular label will completely cover the lateral surface of the can using as little paper as possible. If the can has a height of 12 cm and a diameter of 5 cm, then what are the width and length (to the nearest centimeter) of the label?
asked by Austin 
Social St.!!!ASAP!!!!
If I am writing an essay what should I include for my paragraphs the essay question is: "What problems did the farmers experience while creating U.S. Constitution?" Intro....= what can I write? Body.....= what can I write? Conclusion....= what can I write?
asked by Sumaiya 
Economics
What are the basic characteristics of pure competition, and the importance of understanding of the pure competitive economic model to the manager of the real world firm.
asked by kamara 
Public Finance
A worker lives in a state that has its own income tax. The worker is in the 31 percent federal tax bracket. In addition, he is subject to a 9 percent MTR for his state income tax. Assume that mortgage interest is deductible both on his federal and state
asked by Melvin 
Chemistry
The decomposition of IBr(g)into I2 (g) and Br2 (g) is first order in IBr with k = 0.00255/sec. (a)Starting with [IBr] = 1.50M, what will [IBr] become after 2.50 minutes? (b)How long, in minutes, will it take for [IBr] to go from 0.500M to 0.100M? (c)What
asked by David 
Math (Calculus AB)
For x≠0, the slope of the tangent to y=xcosx equals zero whenever: (a) tanx=x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help. I have a final tomorrow and I am working diligently to understand every type of problem that may show up on my test. Thank you
asked by Jake 
Grammar
1. Individual Assignment: Practice with Pronouns, Adjectives, Adverbs, and Comparisons • Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or
asked by Carmelita 
math/ CIRCUMFERENCE of a circle
A person has a measuring wheel that records the distance the wheel is rolled along the ground. The circumference of the wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1mi=5280 ft)?
asked by Suzanne 
business
All of the following except ____ are elements of quality of life. clean environment, safety, free time and health care are elements which contribute to our:
asked by Anonymous 
Math
Multiply. (1/5) X(7)X(4/7) Write your answer as a fraction in simplest
asked by Jen 
English
Can someone help me with this sentence. There was an increase in wealth when the people died, leaving them with money, therefore CREATING a middle class Does the capitalized word go with the sentence?
asked by Anonymous 
diameter
if the sum of the diameters of two circles is 28 inches one circle has a diameter that is 8 inches longer than the diameter of the other what are the diameters of the two circles
asked by seth 
Physics  electric potential
an infinite plane of charge has a charge unit area of 2.6 uC/m^2. What is the change in the electric potential between points that are 2.5 and 4.5 from the plane
asked by J Velji 
Spanish
Can someone tell me about The Mexican President's Home? Describe the building and give me some websites where I can research myself?
asked by NEEDS HELP!! 
geometry
volume of a rectangular pyramid if the height is 13 and the base sides are 12 and 15
asked by lucila 
Pre algebra
Solve the porportion w/7 is equal to 36/42
asked by Johan 
Algebra
A loan of $37,000 is made at 3%interest, compounded annually. After how many years will the amount due reach $49,000 or more? (Use the calculator provided if necessary.) Write the answer as a whole number.
asked by Jen 
Chemistry
How do you determine if a compound is ionic, acid, or covalent ? I.E. silicon dioxide
asked by Haden 
physics
If a car moving at 76.0 mph takes 500 ft to stop with uniform acceleration after its brakes are applied, how far will it take to stop under the same conditions if its initial velocity is 38.0 mph?.
asked by MEL B 
chemistry
The pH of a solution is 6.0. Explain how the addition of the following substance would alter (or not alter) the pH of the solution. a. HCl b. NaOH c. H20
asked by steven 
Physics
A 0.41 kg football is thrown with a velocity of 17 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.023 s. What is the force exerted on the receiver? Answer in units of N.
asked by Michael N. 
Math (Calculus AB)
An equation to the graph of y=x^3+3x^2+2 at its point of inflection is: a) y=3x+1 b)y=3x7 c)y=x+5 d)y=3x+1 e)y=3x+7 Please help. I am in urgent need.
asked by Jake 
sciencedue tommorow please help!!!!!!!!!!
we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution
asked by shweta 
physics
Problem: A sample of liquid has amass of 1.04 kg and a volume of 1300 ml. If the mass of the sampleis to be increased by 70 g by adding more of the same kind kind ofliquid, what volume of liquid must be added? Solution given: 1) 1040/1300=.80 2) 70/.80=88
asked by andrea 
geometry
what solid figure can you make if you combine two congruent cubes
asked by noah 
Statistics for social sciences
A population with a mean of u=10 has EX=250. How many score are in the population?
asked by Dana 
math
PLEASE!!!!i need help on these 4: *4y=153x 2y=3x+21 *4x=5y14 y=6x9 *5x=4y30 2x=3y=12 *2/3y=10+4x 5x=1/3y8 use linear combinations to solve the system of linear equations thank you!!!
asked by HELP me please asap!! 
physics
Problem: A sample of liquid has amass of 1.04 kg and a volume of 1300 ml. If the mass of the sampleis to be increased by 70 g by adding more of the same kind kind ofliquid, what volume of liquid must be added? Solution given: 1) 1040/1300=.80 2) 70/.80=88
asked by andrea 
science
what is a name given to all of the functional parts that float in cytoplasm??? ( it has to be 10 letters)
asked by Erin 
Science
What is the frequency of a wave if the movement of the wave is one hundredth (1/00) of a second?
asked by Donnie 
math
102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219 is not +3+6+3+6 TRY it yourself
asked by Jay 
Chemistry
A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?
asked by Hunter 
geometry
why is the centroid always inside the triangle?
asked by Alaska 
math
what is the sum of the 1st 10 terms of the arithmetic series that has a 10th term of 50 and a 1st term of 5
asked by roberto 
4th grade
nick's diner advertise fresh squeezed orange juice every day of the year. he serves twentyfour 8ounce glasses of juice a day. nick knows it takes three 6ounce oranges to make one 8ounce glass of juice. nick orders oranges by cases that have 24 oranges
asked by dk 
Science
What is the pronunciation rebus of helium?
asked by Fred 
science
an astronaut in space vehicle traveling from earth to the moon is in potential danger of being harmed by the sun's ultraviolet radiation.
asked by cynthia 
Business Finance
What is the PV for a bond that has 85 interest, $1000 par, 16 yr maturity, market price of $ 1,035, flotation costs of 15%. The firms tax bracket is 34%
asked by Roxie 
Math
Write an equation that is parallel to y=1/47 and goes through the point (4,5)
asked by Felicia 
Human Service
If a person comes into your offices saying he/she have a schedule interview and the employer claims that he/she does not, What would you say to the person
asked by Quentina 
math
Is the product of 6 x 2 x 4 less than 50? Explain.
asked by mick 
Math
If line g passes through point (2, 2) and is perpendicular to the line h, then what is the equation of line g?
asked by Ant 
chemistry
which stereoisomer of citric acid is produced in the citric acid cycle?
asked by tai 
statistics
For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The
asked by kim 
English
Thank you very much. I forgot to include the following these sentences. 1)The Spanish Civil War took place between July 1936 and April 1939 between the fascist rebels (known as Nacionales), the republican government and its supporters. 2) The Republicans
asked by Franco 
ap chem
how would each error affect the molar mass of antifreeze ( too high, too low, no effect. a) the thermometer used actually read 1.4 too high b) after measuring the 50 of distilled water to make an antifreeze solution you spilled some. c)you lost some of you
asked by tori 
chemistry
If you had 5 grams of Na and 5 grams of Br, which would have more atoms
asked by Al 
math
It takes mary x hours to travel 100 kilometers. If she increases her speed by 5 kilometers per hour, the journey will take her 3 hours less time. Find x.
asked by Taylor 
english
Where does this semicolon go... All states have flags some are quite beautiful.
asked by Alexis 
science
if i am 11 how old will i be when the life that is leaving the star arcturus reach the earth and how far in kilometers will it have traveled
asked by madelyn 
Chemistry
I understand how to balance equations when the full equations are given to me but I don't understand how to write a single replacement reaction. Help Me??
asked by Jessica 
math
PLEASE!!!!i need help on these 4: *4y=153x 2y=3x+21 *4x=5y14 y=6x9 *5x=4y30 2x=3y=12 *2/3y=10+4x 5x=1/3y8 use linear combinations to solve the system of linear equations thank you!!!
asked by HELP me please asap!! 
language arts
there are three words to use to fill in each blank... the words are 1. automatic 2. tenant 3.volley here are the sentences: 1. OCCUPANT is to _________ as CHILDISH is to JUVENILE 2. BY HAND is to _________ as PALE is to BRIGHT 3. BARRAGE is to _________ as
asked by Bri 
Chemistry
A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?
asked by Hunter 
Algbra
1/4x  5/12x = x  4/3 Please show steps and answer. Thanks.
asked by Zach 
ela
we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution
asked by shweta 
Synonyms
Hey, Im doing a short essay and my teacher wants me to use high level words, so not simple ones. Is there a good site which I can translate my simple words to those high level ones. I know that I can go search in a dictionary, but are there any other
asked by Destiny 
geometry
What is the volume of a pyramid with a base area of 27 and an altitude of 6
asked by malcom 
science
what is an idea that i could use to explain the water cycle including evaporation, condensation, run off, etc?
asked by Linda 
Math
The point (1, 1) is in quadrant IV. How to determine if this is true or false?
asked by rosie 
Math
1/2(4d  2) = d + 5
asked by TheMathDude 
Math
Add fractions and mixed numbers with like denominators example 7+1 10+10 = hOW DO I WORK THIS
asked by Amari 
math
I just need a little help I got this far and got stuck again. 0.10 mm=0.010cm V= (4/3) (0.010cm) ^3= 1.3333x10^06 M= (1.3333*10^06cm^3)*(4.0*10^14g/cm ^3) =
asked by marie 
comm 155
• Read two of the five paragraphs on the second page of this appendix. Write a brief paragraph of about 150 words in which you do the following: o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence
asked by Darlene 
math
i am having difficulties figuring this out.... a ball has dropped from a height of 15m and bounces 60% of the previous height. the total distance ball travels after the 9th bounce is... i got this equation done but i do not know how to calculate this to
asked by jackie 
physics
B. You can get 28 oz of spicy pretzels for $4.40, or you can get 16 oz of regular pretzels for $2.30. 1. Which is a better deal? Explain your reasoning. 2. How much would 16 oz of the spicy pretzels cost, assuming the same price per ounce?
asked by andrea 
Calculus
Integrate the following: sin^3 x/cosx Have attempted numerous ways but can't get anything sensible to come out of it.
asked by Rachel 
Intro to Chemistry
If you are looking at C6H5NO2 which source of nicotinic acid is best used in a vitamin?
asked by Anonymous 
English
1.Suddenly, the door (burst) open. 2.We have (drive) on Oklahoma's Indian Nation Turnpike. 3.The water in the birdbath has (freeze) again. 4.The Highland School Band has always (wear) Scottish kilts. 5.Noriko (know) the way to Lynn's house. I have to write
asked by Hayden 
Chemistry
How do you make Tris into the acid form?
asked by Jason 
Chemistry
A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?
asked by Hunter 
math
A.use the distributive property to write an expression that is equivalent 3(x +  8)
asked by karon 
english
Which of these is true of the novel form when it was first introduced? 1.Its status as an art form was questioned. 2.It appealed to the highly educated. 3.It was nonfiction rather than fiction. 4.It satirized the working class. i think its 2? am i right?
asked by Ron 
English
Thank you for your suggestions. Here are some more sentences I'd like you to check. 1)On leaving school (After leaving Eton), Orwell served in Burma for the Indian Imperial Police. 2) On his return to England he experienced poverty at first hand. As a
asked by Franco 
math
can some please solve everyone because i do get it. 102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219
asked by Jay 
Critical Thinking
What is the value of looking at an idea as a four categorical proposition.
asked by SueAnn 
Health and Career EASY
what does not child resitant mean?
asked by Monali 
calculus
Factor completely x^3  5x^2  x + 5
asked by Alyssa 
Friendship(Shakespeare)
I'm trying to write a few sentences about what I believe friendship is. I really love Shakespeare's literature, and want to write the sentences like his. Friendship sy ne expressed fram the mind, but the soul. It is se abounding consanguinity which one
asked by Maddy 
English
Thank you very much. I forgot to include these other sentences on the same theme. 1) Back to England he suffered from bronchitis and pneumonia. 2)When the Second World War broke out he moved to London where he joined the BBC. 3) He broadcast cultural and
asked by Franco 
linear algebra
show that if L is any line through the origin in R3 and x is any vector with its initial point at the origin, then the reflection of x through the line l(acting as a mirror) is equal to 2(projection of x onto r)x I don't know how to set this up.
asked by jack 
Social Studies EASY
If its 7:30 pm in canada then what time is it in india?
asked by Monali 
human service
I have to Describe human development and the factors that have stimulated research in this area. I am not sure where to begin. Does this mean I need to explain all the different theories of human development?
asked by patiance 
math
Let g(x)=2x7 and h(x)=x+4/3. Perform the indicated operation and state the domain.
asked by Amanda 
mat
Write an equation about the difference in ages between these two children. Ann is 13. Lisa is 9 ?
asked by Anonymous 
Vocabulary
Fill the blank, please. 1. Though his parents urged him to be more ________, Billy was naturally shy and timid. 2. Hannah tried not to let the way someone dressed _______ her opinion of that person.
asked by Haily 
math
the perimeter of a rectangular floor mat is 42 inches, if the width is 9 inches, what is the length?
asked by sha 
physics
If an armadillo can leap to 0.5m height, how fast must he be moving vertically when his feet just lift off the pavement?
asked by thomas taylor 
Calculus
find the limit of lim 7= as x approaches 8
asked by Matt 
chemistry
If you had 5 grams of Na and 5 grams of Br, which would have more atoms
asked by Al 
Social Studies
How did events at Chickamauga and Chattanooga affect Georgians?
asked by Rachel 
Chemistry
The following data is collected for the decomposition of methy isonitrile at various tempertures: Temp.(C) k(/s) lnk 1/T 290 2.52*10^5 ? ? 299 5.25*10^5 ? ? 330 6.30*10^4 ? ? Complete the table above and, using your graphing calculator
asked by Paul 
math
$25 for each passed test and fined $50 for each failed test passed 7 times as he failed and he had $375. how many tests did he pass?
asked by Jarrett 
fraction
find t he fractional part of each number 2/3 of 9 and 1/6 of 12
asked by jayjay 
Math
Evaluate 4X^3 +3Y^3, IF X=2 AND Y=5 I am not sure how to work this out
asked by Rena 
english
How can I write a Persuasive Essay Outline on Physical Eduation?
asked by Jesus 
math
If g(x)= 2^2 and h(x)=x2/5. Find the indicated value. h(g(5)) I got 5.4. is that right?
asked by Zach 
chemistry
i need help with chemistry homework
asked by Alianna 
algebra 2
find the quotient and remainder of 3x^52x^45/6x^2x+4 using long division
asked by vio 
math
n2=144 what is the value of n
asked by sam 
Math
Simplify. Please help me fractions hate me:) (1/251/x^2)divided by (1/5+1/x)
asked by Joe 
Calculus
solve [1cos(7pi/4)]/2
asked by Annonymous 
math
number is greater than 50 and less than 100. you can make exactly 5 different rectangles with a mystery numbers of tiles. its prime factorization consists of only one prime number. whats my number
asked by Anonymous 
math
if w = 12.34, what is the value of the expression below 421.9 + 6w
asked by karon 
Trigonometry
Express the following in radians: f.1025degrees. > (pi/180)*1025 = 185pi/36 Is that correct or theirs another way to do it ??
asked by Anon 
Geometry
You are given two segments, LineAB with AB = 4 and LineCD with CD = 7. Explain how you could only use the congruentsegments construction to construct LineEF with EF = 1.
asked by NEEDS HELP 
Math
find the mode of the following numbers. 13,45,34,23,12,34,23,12,56,24,12,34,34
asked by Nicole 
physics
1. Does an electric field exist within a charged spherical conductor at points other than its center? 2. Why is there no electric field at the center of a charged spherical conductor?
asked by beauty 
algebra
WHAT IS THE AMOUNT OF MONEY PAID OR EARNED FOR THE MONEY USED
asked by KAYLA 
sciencedue tommorow
we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution
asked by shweta 
math
cx+7 if x2 determine any values of c which make f continuous for all real numbers (c=6) determine any values of c which make f differentiable for all real numbers ???
asked by alberto 
Physics  electric potential
Consider a solid sphere of radius R = 0.52 m that is uniformly charged with ρ = 2.8 µC/m3. What is the electric potential a distance 2.6 m from the center of the sphere?
asked by J Velji 
algebra
1.)Twice a number is 28
asked by Eve 
english
How can i use rubbed in a sentence using a question mark?
asked by india 
statistics
For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size (b) 3.
asked by kim 
geometry
use the distributive property to remove the parentheses from this problem
asked by lisha 
Spanish
What is the House Of Tiles?
asked by Needs Help 
chem
A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 x ¡¼10¡½^7 ¡¼mi¡½^2 in diameter, while the diameter of the 2002 hole was 6.9 x ¡¼10¡½^6 ¡¼mi¡½^2 Calculate the difference
asked by marie 
Math
7a  4 + 2a= 3a  2 I tired it and couldn't come out with a answer that fit when I checked it
asked by TheMathDude 
English
These sentences are part of the same work. Thank you. 1)George Orwell along with Ernest Hemingway were among the more famous foreigners participating in the efforts against the fascists. 2. Many Spanish intellectuals and artists either were (either) killed
asked by Franco 
fractions
How do you do fractional parts of a number?
asked by jayjay 
trig
find all values of x on interval 02pi. (sin4x)(cos7x)=(cos4x)(sin7x) identities should be used.
asked by Ashten 
ap chem
find a rate constant of rate= (x)^2(y) calculate rate for exp. 4 determine rate for exp 3 in terms of Delta X/ Delta T information exp x y rate 1 .20M .10M .048 MS^1 2 .40M .10M .19 Ms^1 3 .40m .20M .38 Ms^1 4 .60M .60M ?
asked by tori 
calculus
what is the value of y in the equation (y/(2yx))=0.5
asked by sebastian 
To Rachel
I'm sorry to take so long to get back. All of the C atoms are sp2 hybridized. There are no sp3 hybridized C atoms Here is a link to that post on Sunday. http://www.jiskha.com/display.cgi?id=1295798102
asked by DrBob222 
physics
A. There are 28 g of salt dissolved in 400 ml of water. Consider the quantity 0.07 = 28/400. 1. Give the name of the quantity if there is one. 2. What is the interpretation of . 07 g in this context? 3. Use the interpretation to find the amount of salt
asked by andrea 
math
rockfish is on sale for $3.29 a pound. how much a piece that weighs 0.75 pound cost?
asked by karon 
GEOMETRY
RayMO bisects AngleLMN, The Measure of AngleLMN =5x23, The Measure of LMO = x+32, O is the point is from RayMO, the point when a bisect is made. Find AngleNMO.
asked by NEEDS HELP 
science
the water in container a is 80 degrees c and the water in container b is 5 degrees c the water in container a has??
asked by aizlyn 
chemistry  density and error (check)
Calculate the density of earth and the density error. i got the answer 5.57*10^3k +/ 9.60 *10^7kg/m is that the correct answer? please help
asked by Farah 
grammar
how to make this sentence past perfect? Volunteers blank a truckload of scrap paper. would it be had or have collected?
asked by hunter 
Social studies
What are the names of the nations in central america?
asked by Alyssa 
physics
Calculate the force of gravity on a 12 kg mass if it were 6.4 106 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)
asked by taylor 
Math
For each of the following decimal numbers, give the place value of the underlined digit. 97,998 (the line is under the 7) Thank you!
asked by Mike 
math
Convert the baseten number to a numeral in the indicated base. 40 to base two
asked by Ana 
math
shaniquya went to the carnival with her friends. the total cost in dollars, c, of attending the carnival is given by the equation: 5(t10)2t=c
asked by karn 
math
a boy travels 20 km north, then 15 km south, how far is he from where he started?
asked by Trevor 
math
calculate the mass in kilograms of a small piece of a neutron star the size of a spherical pebble with a radius of 0.10 mm. 0.10 mm=0.010cm V=(4/3)(0.010cm)^3= M= ( i got this far now I am lost please help
asked by marie 
reimbursment methologies
when coding late effects, the code for the what is usually sequenced first
asked by kim 
math
I had to repost this since I hit the submit button by mistake Use patterns or a linear equation to complete the table. column x 1,3,5,10,50,100 column y 1,3,7,?,?,? I tried several combinations using 3,2,and 1 in place of m but still not coming out
asked by m 
Algebra
Graph the equation using the slope and the yintercept y=7/6x+2. Thank you for your help.
asked by Anonymous 
English
Can you check these sentences for me, please? Thank you very much. 1) Eton College is one of the original nine English public schools and was founded in 1440 by King Henry VI . It is located in Eton, near Windsor in England, north of Windsor Castle. 2) It
asked by Franco 
Algebra
The polynomial function f is defined by f(x)x^43x^32x^2+4x+5. Use a graphing calculator to find all the points (x,f(x)) where there is a local maximum. Round to the nearest hundredth.
asked by Rachal 
social studies
what animal did the incas use for transportation?
asked by kahlitah 
physics
A bb player crouches lowering center of gravity 0.3m. when he jumps, center of gravity reaches 0.9m above normal. A. Calculate velocity when feet left ground. B. Calculate acceleration produced to achieve velocity. C. What force exerted on floor if mass is
asked by Scott 
algebra
3(4x+6)+7x
asked by Cindy 
math
what is the standard deviation of these numbers 7 9 7 10 8 7 9
asked by keke 
Math
If the slope of line f is 2,and a line d is parallel to the line f, what is the slope of line d?
asked by mark 
Math
If the slope of line f is 2, and a line d is perpendicular to the line f, what is the slope of line d?
asked by ken 
Science
what is an 11 lettered word that means "a cell without a membrane?
asked by Erin 
math
The total cost of for 24 students'admission to a museum was $92.40. What was the cost per student?
asked by karon 
algebra
12 to the negative 2nd power
asked by kaivon 
math
what is the area of a triangle if it has a base of 6in and a height of 3in ?
asked by karon 
Math
x  7 = 2x  6 does x= 1?
asked by TheMathDude 
math
1 2 4 42 1882
asked by beth 
Math
If line f is parallel to the line h, and line f has yintercept 5, what is the equation of line f ?
asked by rolando 
math
shaniquya went to the carnival with her friends. the total cost in dollars, c, of attending the carnival is given by the equation: 5(t10)2t=c where t represents the number of tickets purchased. A. if the cost, c, is $10, how many tickets did she
asked by karon 
chemestry
an oilo slick 110 nm 1.0 * 10^6 square meters of ocean.How many liters of oil are in the slick
asked by tom 
business math
What is the total amount of tax due on a property with an assessd value of $315,200? The propery tax rate is 53.7 mills
asked by alisha 
english
whate are two causes for hiv and aids
asked by Anonymous 
physics
Problem: Two blocks of metals have the same mass. The first block has a volume of 827 cm^3 and a density of 4.50g/cm^3.Thesecond block has a volume of 193cm^3. What is the density of thesecond block ? Solution: (1) 4.50x827=3720 (2)3720/193=19.3 1. Give an
asked by andrea 
math
h(x) = x2/5 find the indicated value of h(h(4))
asked by Amanda 
geometry
why is the orthocenter of a right triangle on the vertex that is a right angle?
asked by Alaska 
arithmetic
What is the area of the irregular shape of a cone if the radius is 7in and the height is 22in?
asked by Abigail 
mat
equations
asked by Anonymous 
Math Urgent
(square rt. 5) +(square rt. 20)=
asked by Anonymous 
algebra
x=2/3y+6 put in pointslope form
asked by stu 
Math
4(8  y) = 2y + 16
asked by TheMathDude 
math
lcd of 1/125+62/50
asked by kdk 
math
can some please solve everyone because i do get it. 102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219
asked by Jay 
alegebra
the product of 5 and 4 and 6
asked by stu 
Math
x+3=0 how do you graph that? y= 1 how would you graph that?
asked by Jo 
Math
102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219
asked by Jay