Questions Asked on
January 15, 2012

Science
Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^6/.025)=719200 Two equal charges are separated by 3.7 x 1010
asked by Anonymous 
chemistry
Silver chloride, AgCl, would be least soluble in A.1.0M HCl B.1.0M NaNO3 C.1.0M ZnCl2 D.1.0M AgNO3 and why? thx
asked by saphire 
Chemistry
A .25 g chunk of sodium metal is cautiously dropped into a mixture of 50g of water and 50 g of ice both at 0 C 2Na(s) + 2h2o(l) > 2naoh(aq) + H2 Delta H = 368 kj Will the ice melt Assuming the final mixture has a heat capacity of 4.18 J/g C calculate
asked by Adriths 
Calculus
A piece of elastic is attached to two nails on a flat board, with a button attached to the midpoint of the elastic. The nails are 5 cm apart. You stretch the elastic by pulling the button along the board in a direction that is perpendicular to the line
asked by Mishaka 
Chemistry
The enthalpy of fusion of methanol (CH3OH) is 3.16 KJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?
asked by Anonymous 
Mathematics
If A gives B $3, B will have twice as much as A. If B gives A $5, A will have twice as much as B. How much does each have? Explain clearly your working.
asked by Diamon 
Mathematics
A shopkeeper mixed coffee powder worth $2.50 per kg with coffee powder worth $3.50 per kg, and sold 20 kg of the mixture at $2.80 per kg. Find the weights of the 2 grades of coffee powder that he mixed together. Explain clearly your steps of solving it.
asked by James 
Chemistry
A mixture of three gases has a total pressure of 1380 mm Hg at 25 degrees celsius. If the mixture contained 56 grams CO2, 3.04 mol CO and 9.03 X 10^23 atoms of Argon, the partial pressure of argon would be about? ok so first I did 56 CO2 X 1/44.01 = 1.27
asked by Hannah 
Mathematics
A farmer keeps hens and rabbits on his farm. One day, he counted a total of 70 heads and 196 legs. How many more hens than rabbit does he have? Explain your working please. Your help is greatly appreciated.
asked by Jessica 
chemistry
which of the following could dissolve a precipitate of CaC2O4 in a saturated solution of CaC2O4? A.NaOH B.CaC2O4 C.H2C2O4 D.Ca(NO3)2 i know it is A, but why??
asked by saphire 
Mathematics
The sum of the numerator and denominator of a fraction is 17. If 3 is added to the numerator, the value of the fraction will be 1. What is the fraction? Explain your workings.
asked by Dale 
physics
An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of 13.5 m/s and measures a time of 21.8 s before the rock returns to his hand. What is the acceleration due to
asked by Jen 
information literacy
When choosing your search strategy for a search engine, it's best to A. combine keywords into phrases by using quotation marks. B. enter the least important word first. C. use verbs, articles, and capitals. D. ignore alternate spellings. My answer is a
asked by tasha 
Geometry
1) In the diagram above, line a is parallel to line b. Which theorem or postulate allows you to conclude that angle 6 is equal to 8? , line a is parallel to line b. Which of the following can you conclude based on the Alternate Interior Angles Theorem?
asked by kay 
physics
A 0.250 kg block on a vertical spring with a spring constant of 5.00 103 N/m is pushed downward, compressing the spring 0.120 m. When released, the block leaves the spring and travels upward vertically. How high does it rise above the point of release?
asked by Anonymous 
geography
what are some of the advantages and disadvantages of south america's and europe's physical geography?
asked by hannah mack 
maths mixed fractions
jack spends 1 2/3 as longer on his homework as Jill last week, Jill spent 5 1/2 hours doing homework How long did jack spend doing homework? The week before jack spent 24 ½ hours doing homework How long did jill spend doing homework
asked by Anonymous 
information literacy
When choosing your search strategy for a search engine, it's best to A. combine keywords into phrases by using quotation marks. B. enter the least important word first. C. use verbs, articles, and capitals. D. ignore alternate spellings.
asked by tasha 
Physics
A 45 kg cart is moving across a frictionless floor at 1.7 m/s. A 60 kg boy, riding in the cart, jumps off the cart so that he hits the floor moving forwards in the initial direction of the cart's motion with a velocity of 2.8 m/s. What is the velocity of
asked by Bobby 
Physics
An apple is placed 17.0 cm in front of a diverging lens with a focal length of magnitude 23.2 cm. What is the image distance i of the image of the apple through this lens? What is the magnification of the image of the apple? Wwhich of the following
asked by spenceR 
physics
A young boy swings a yoyo horizontally above his head so that the yoyo has a cen tripetal acceleration of 240 m/s2. If the yoyo’s string is 0.29 m long, what is the yoyo’s tangential speed
asked by Anonymous 
Literature
Assuming “Kubla Khan” is a deliberate fragment (i.e. that it is finished in its unfinished state), what does the introductory narrative imply about the nature of (ideal) poetic creation? How does the narrative frame our understanding of what the poem
asked by Tina 
science
Describe how a scientist using the phenic system would classify an organism.
asked by kathy 
Physics
A ball is thrown at 21m/s at 30degree above the horizontal from the top of a roof 16m high.calculate the time of flight
asked by Tshepo success 
history
Which impact of the Enlightenment do you consider most important? Why?
asked by cami 
geometry
Find the length of the diagonals of the isosceles trapezoid if AC = x + 1 and DB = 2x  3
asked by sharon 
geometry
Answer has to be in exact form. Find the area of the region between a regular hexagon with sides of 6" and its inscribed circle.
asked by dana 
physics
A woman on a bridge 77.4 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.07 m more to travel before passing under the bridge. The stone
asked by Jen 
physics
A simple pendulum is made from a bob of mass 0.04 kg suspended on a light string of length 1.4 m. Keeping the string taut, the pendulum is pulled to one tntil it has gained a heit of 0.1 m.calculate the total energy of the oscillation?
asked by Abdela said yimer 
Math
How do I find the relative maximum and minimum and the zeros of f(x)=x^3+16x^276x+96??
asked by Brittany 
info interacy
The Boolean search connector OR is used for which of the following purposes? A. To restrict a search by excluding results that include a particular term B. To narrow a search by adding another concept C. To search several different databases simultaneously
asked by tasha 
English College composition I
I need help on writing a thesis statement about child abuse/my story. so far this is what i have THESIS #1 "While other children were beaten to death or were abused in so many ways. I was one of the few who survived child abuse and became an adult trapped
asked by Samantha 
Physics
An astronaut of mass 70 kg carries an empty oxygen tank of mass 14 kg. He throws the tank away from himself with a speed of 3 m/s. With what velocity does the astronaut start to move through space?
asked by Dylan 
statistics
Assume that it takes a college student an average of 5 minutes to find a parking spot in the main parking lot. Assume also that this time is normally distributed with a standard deviation of 2 minutes. Find the probability that a randomly selected college
asked by latoyia daniels 
Geometry
PQR is congruent to DJE. complete the statement below PR is congruent to __, DJ is congruent to __ angle E is congruent to __ 1) PR is congruent to PQ, DJ is congruent to PQ, angle E is congruent to angle R 2) PR is congruent to DE, DJ is congruent to DR,
asked by Elle 
Science
To find the current in a complex circuit, it is necessary to know the potential difference in each device in the circuit. current in each device in the circuit. equivalent resistance of the circuit. number of branches in the circuit. B
asked by Anonymous 
chemistry
A solar heating specialist is considering paraffin as a possible solar heat collector. How many kilograms of paraffin would be needed to collect as much energy as 4.73 x 10^3 kg of water? The specific heat of paraffin is 2.90J/gxC. Hint: Assume the same
asked by k 
chemistry
When a sample of carbon dioxide gas is at 36 degrees and 105 kpa is heated the new pressure of the gas becomes 165kpa. Determine the new temperature. Assume volume and amount of gas remain constant.
asked by jo 
Chemistry
Find the product and list the full balanced equation. CuCl2 + AgNO3 > ?
asked by Shea 
physic
Two balls are conneted by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.81 kg and is held 0.5 m above the ground. Ball 2 has a mass of 6.3 kg and is held 0.28 m above the ground. When the balls are released, ball 2
asked by Anonymous 
Science
To find the current in a complex circuit, it is necessary to know the potential difference in each device in the circuit. current in each device in the circuit. equivalent resistance of the circuit. number of branches in the circuit. C
asked by Anonymous 
math
Howard made cards for the fractions 3/9,4/8, 1/7, 6/5,and 3/10. He set them out in a row, putting 1/7 first.The fraction equivalent to 1/2 went after the one equivalent to a mixed number. A fraction that is half of 3/5 went between the fraction equivalent
asked by Raymond 
chemistry
In the following reaction which side of the reaction will be favored by a decrease in pressure. a) reactant b) product c) neither 4HCL(g)+O2(g)>2H2O(g)+2Cl2(g)+114.4KJ
asked by tamara 
chemistry
calculate density of CH4 gas at 0C 700 mass Hg pressure.Molecular mass of CH4 is16
asked by Anonymous 
Maths
A closed rectangular wooden box has external dimensions 17x12x10. If the wood is 1cm thick, calculate the volume of wood required to make it. (All measurements are in Cm)
asked by Jiskhaa 
math
Howard made cards for the fractions 3/9,4/8, 1/7, 6/5,and 3/10. He set them out in a row, putting 1/7 first.The fraction equivalent to 1/2 went after the one equivalent to a mixed number. A fraction that is half of 3/5 went between the fraction equivalent
asked by raymond 
physics
A driver in a car traveling at a speed of 41.7 mi/h sees a deer 88 m away on the road. Calculate the magnitude of the acceleration necessary for the car to stop just barely miss ing the deer (assuming that the deer does not move in the meantime). Answer
asked by Dustin 
geometry
Answer has to be in exact form.Find the area of a segment formed by a chord 8" long in a circle with radius of 8".
asked by dana 
Chemistry
How much heat energy is required to raise the temperature of 4.50 liters of water from 36 degrees celcius to 44.6 degrees celcius?
asked by carol 
Algebra
Suzie has 11 coins in her purse. the coins are dimes and quarters. If she has $2.00 in her purse, how many of each coin does she have?
asked by terry 
info interacy
To avoid plagiarism in your written research paper, you must provide a citation for which of the following?
asked by tasha 
English
I want a sophisticated transition word for the first paragraph of a literary essay, what should i use?
asked by Saphire 
math
The barkleys have a set of plastic picnic cups and dishes that come in 6 different colors. Blue, Red, Green, Yellow , Orange, and Purple. 1. How many possible cupanddish combinations can they make with such a set? 2. peter will pick a dish and a cup
asked by john 
Westwood
Flexibility is said to be the hallmark of modern management accounting, whereas standardization and consistency describe financial accounting. Explain why the focus of these two accounting systems differ.
asked by Diane 
math
Find the exact circumference of a circle with diameter equal to 8 ft.
asked by lisa 
Maths
A rectangualr metal sheet is 32m long, 16m wide and 12mm thick. Eight circular holes, each of diameter 3m are cut in the sheet, so that none of the holes overlap. Calculate the volume of metal remaining, correct to 3 decimal places (Take pi=3.142) P.S.
asked by Jiskhaa 
precalculus
given functions f,g, and h find f o g o h state exact domain. show work f(x)=1/x g(x)=lnx h(x)=2x+15
asked by Sara 
English
Thank you Ms. Sue for your invauable help! Here is the second part of the letter I need to hand in by tomorrow. As writeacher is not there, could you please help me check it? Many thanks in advance. This twoyear project will be mainly about a comparative
asked by Henry2 
chemistry
the following reaction may be used to remove sulfur compounds from power plant smokestack emission. 2HS(g) + SO2 >>>> 3S + 2H2O ...... DELTA h = 145 KJ the value of the euilibrium constant for this reaction is 8.0*10^15 at 25 degree celsius. a). given the
asked by klove12 
English
Improving your writing. Section 1Facts and figures that define the problem (the cause). Details that show the impact of the problem (effects) on Jack, Ruth, and the company. Section 2  The steps needed to change the situation. Reason to implement each
asked by Sis 
math
a number multiplied by 8, subtracted from the sum of 6 and 5 times the number plz help
asked by andy 
Math
when 6 is increased by the number of 12 the result is 102 what is the number?
asked by lilly 
Math
How to setup this equation? Find the ratio of the surface area of a cylinder to the volume of the cylinder if the height remains at 10 cm. Simplify this ratio and let f(x) = the simplified ratio. Let r be the radius of the cylinder. a) Find the average
asked by melinda 
Can someone proof read my essay
It's supposed to be a subjective essay on the artical "Literacy in a Thousand Words" Thanks. The article, “Literacy in a Thousand Words,” written by Beatriz Pont and Patrick Werquin, addresses the issue of the lack of literacy skills of the U.S.
asked by Anonymous 
logic and design
You have been contracted by a local antique store to design an algorithm determining the total purchases and sales tax. According to the store owner, the user will need to see the subtotal, the sales tax amount, and the total purchase amount. A customer is
asked by EJ 
geometry
bulletin board border please help me. i would like to make a geometry bulletin board that has a a border of circles, triangles and squares. i know that 20 shapes will fit across the board and that 12 shapes will fit down the board . if i start in the top
asked by guy 
math
Find the exact circumference of a circle with diameter equal to 8 ft. I know the answer is 25 ft but the answers I have to choose from are 8, 16 or 64
asked by lisa 
11French
can someone please edit my story? Les Aventures de Philippe et Billippe Page 1 Bienvenue Philippe et Billippe. Ils sont jumeaux identiques. Même si qu’ils sont les memes personnes à l'extérieur, ils sont complètement different à l'intérieur.
asked by Rebecca 
Economy Today
Do total profits (A) decrease, (B) increase, or (C) stay the same when new technology reduces average total costs (shifts ATC downward in Figure 26.2 ) in (a) An unregulated natural monopoly? (b) A priceregulated natural monopoly? (c) A profitregulated
asked by Debbie 
history
Why (even though he had been elected president twice before) was it difficult for Roosevelt to gain the Republican Party's nomination in 1912? So, what did Roosevelt do? What was his (and his supporters') plan? I only have the answer for the first part and
asked by anonymous 
physics
The threetoed sloth is the slowest moving land mammal. On the ground, the sloth moves at an average speed of 0.0330 m/s, considerably slower than the giant tortoise, which walks at 0.0800 m/s. After 10.2 minutes of walking, how much further would the
asked by Jen 
English
I left out two statements. Can you please consider them two? 1) As we are short of time (as the deadline is approaching), we urgently need to know if you would be interested in such a partnership. 2) If you have other proposals as to the topics to be dealt
asked by Henry2 
English
I left out these three last statements. Can you please consider them two? Many thanks again, Ms. Sue! 1) As we are short of time (as the deadline is approaching), we urgently need to know if you would be interested in such a partnership. 2) If you have
asked by Henry2 
Chemistry
A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50L was heated from 18.0 degrees celsius to 45 degrees celsius after being transferred to a container of volume 2.35L. The pressure in this new container should be about? The original
asked by Hannah 
chemistry
A helium balloon has a volume of 2.50L at STP. If it's released and rised to an elevation at which pressure is 0.285 atm, and the temperature is 35 degrees. What's the new volume?
asked by sarah 
physics
consider a hanging sphere that is hanging through two strings attached to a rigid support. the mass of thesolid sphere is 7.5 kg while the tension in each diagonal string is 95 N. find the inclination angle
asked by Gen 
math
One side of triangle is 10 centimetres, two angles next to that side are 30° and 60°. I need to find all three angle bisectors of triangle.
asked by eve 
MATH
I have 27x^4 = 1.1 x 10^36 I have to figure out what X equals. The answer is x= 4.5 x 10^10 How do you get that for the answer??
asked by ARON 
Psychology  Behavior Modification
Can someone help me come up with another treatment goal for inability to sleep. This is what I had and the instructor said that I had to change it because we really cannot include a biological function in the treatment plan since a doctor has to do this
asked by Carmen 
physics
a car rolls off a cliff and lands 15m from the base. if the cliff was 22m high, how fast was the car going? show work.
asked by emily 
math
katy will flip 3 pennies once.How many possible outcomes for this compound event are there? What is the probability that all 3 pennies will land on tails?
asked by gary 
math
Brie's cabinet has 6 cans of vegetable soup,4 cans of chicken soup, and 8 cans of beef barley soup. She will pick a can of soup from the cabinet at random. 1. What is the probability brie will pick a can of vegetable soup? Write your answer in ratio from.
asked by john 
math
i NEED HELP WITH WEEK 4 ASSIGNMENT MAT 126
asked by ANN JOHNSON 
Chemistry
Determine the volumes of 1 M acetic acid and 1 M NaOH required to make a 200mL 0.1 M buffer with a pH of 5.5. (Assume the pKa of acetic acid is 4.76).
asked by Rachel 
Algebra 1
Please...I really need help with this story problem. HELP! Marks pet needs to eat at least 18 grams of fiber but less than 25 grams of protein each day. Mark gives his dog Food A and Food B throughout the day. Food A has 2 grams of fiber and 3 grams of
asked by Deb 
precalculus
solve exponential equation. express in exact form. e^x42e^x= 19
asked by Sara 
precalculus
x/4x+1 < 5x/6 solve the inequality answer in interval notation and show work  thanks
asked by Sara 
precalculus
I'm going to do this on my own, but I would like to check mine against yours  give me today to work on it and I will be able to compare. List all possible rational zeros for the polynomial find all real zeros and factor completely. show work
asked by Sara 
Physics
Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 79 km/h, while car B travels at a constant speed of 89 km/h. How far is Car A from school 2.1 h later? Answer in units of km
asked by Shannen 
physics
At 1:00 p.m. a car, traveling at a constant velocity of 98 km/h toward the west, is 19 km to the west of our school. How far from the school will it be at 3:30
asked by Rachel 
Trigonometry
A freighter, streaming on course 140„a at 20 knots, is 40 nautical miles N20„aE of a submarine with a cruising speed of 25 knots. Find the course to be set by the sub to overtake the freighter in the least amount of time, and find this minimum time.
asked by Anonymous 
math
Katie had an unpaid balance of $1,734.50 on her credit card statement at the beginning of January. She made a payment of $165.00 during the month. If the interest rate on Katie's credit card was 7% per month on the unpaid balance, find the finance charge
asked by bean 
Chemistry
Exactly 5.02 grams of an unknown gas was sealed in a 3.0L flask at 37 degrees celsius and a pressure of 1.25 atm. Which on of the following is most likely to be the unknown? I am not sure how to start this.
asked by Hannah 
math
A Geometryset costs b dollars. A pen costs $2.00 less than the geometry set. Construct and simplify an expression in terms of b for the total cost of all three items.
asked by howania 
physics 2014
An airtraffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 19.8 km, and 23.0° south of west. The second aircraft is at altitude 1300 m, horizontal distance 17.8 km, and 18.0° south of west.
asked by James 
English Literature
What is the difference between realism and naturalism?
asked by Casey 
math
insert grouping symbols into the expression 4 plus 3 times 2 squared plus 5
asked by Anonymous 
physics
An apple is placed 17.0 cm in front of a diverging lens with a focal length of magnitude 23.2 cm. What is the image distance i of the image of the apple through this lens? What is the magnification of the image of the apple? Wwhich of the following
asked by MORGAN L 
Criminal Justice
Create an analysis chart in Word to compare and contrast the various theories on Domestic Violence. The theories suggested are: biological, psychological, sociological, feminist, and patriarchal. I am not sure how to set this up. Thanks
asked by Sheryl 
science
synonym for remediation could be
asked by Anonymous 
Chemistry
My teacher is going to list the molar masses of five gases and ask us which has the largest molar volume at STP. How would I go about solving this? Would the smallest number have the largest volume?
asked by Hannah 
history
What was the outcome of the 1912 elections, and why did they turn out that way?
asked by anonymous 
algebra 2
solve the quadratic x222x=11 using completing the square
asked by kay 
Money
It is possible for a company’s liabilities to exceed its assets. When this occurs, the owners’ equity is negative. Can this happen with market values? Why or why not? I thought that it would not happen since market value is the price that equity,
asked by Sarah 
English
This is the second part of the letter I need to prepare. I really need your help to improve the word choice. Thank you very much in advance. 1) This twoyear project will be mainly about a comparative study on biodiversity in water and other waterways in
asked by Henry2 
English
I wonder why writeacher hasn't been writing and correcting my queries for a few days. Is writeacher well? Thank you.
asked by Henry2 
physics
2 masses are connected through a nonstretchable string that passes over a frictionless pulley. The masses of the objects are 12 kg and 5.5 kg respectively. The obj with larger mass is hanging 2.5 m fr the surface of a table. Suppose that the two objs are
asked by Sha 
physics
An obj of considerably small spatial extent (volume) slides down at a constant velocity of 2.75 m/s along an inclined board whose inclination with respect to the horizontal is 30 degrees. After reaching the bottom of the board, it travels horizontally
asked by Maine 
History of America
Why (even though he had been elected president twice before) was it difficult for Roosevelt to gain the Republican Party's nomination in 1912? So, what did Roosevelt do? What was his (and his supporters') plan? I only have the answer for the first part and
asked by anonymous 
math
(1) A bag contains 3 red marbles and 5 blue marbles. Jake will choose 2 marbles without looking. What is the probability that he will choose a blue marble followed by a red marble? (2) Suppose Jake wants to pick a third marble from the set in question 1.
asked by gary 
Finance
A bond that has a $1,000 par value (face value) and a contract interest rate of 11.9. The bonds have a current market value of $1,120 and will mature in 10 years. The firm's marginal tax is 34%. What is the cost of capital from this bond debt?
asked by jay 
Math
Which of the following statement is the contrapositive of (1) ."If I don't have money, then I don't spend it". (2)"If I spend money,then I have it" (3)If I don't spend money, then I don't have it."
asked by Tabitha 
Physics
While John is traveling along an interstatehighway, he notices a 166 mi marker as he passes through town. Later John passes a 120 mi marker. What is the distance between town and John’s current location? Answer in units of mi
asked by Marie 
statistics
Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends
asked by Sara 
history
Which event or circumstances of the scientific revolution do you consider to be the most significant Explain your answer?
asked by cami 
Algebra 2
Consider a circle centered at (2,4). What are the coordinates of the center of the translated circle if we replace x with x3 and y with y+5 in the equation of the circle?
asked by Peter 
math
a. Suppose a market research company finds that at a price of p = $30, they would sell x = 32 baskets each month. If they lower the price to p = $10, then more people would purchase the baskets, and they can expect to sell x = 52 baskets in a month’s
asked by kim 
Bio
In a parent pea plant with allele pair Gg, what is the probability that one gamete will contain G allele?
asked by cheyenne 
law
Review and revise the following paragraph. After reviewing al the pleadings the underlining records that party arguments; pertinent caselaw and statues and the other recommendations filed byt eh party's, this court remainsof the opinion and biew point that
asked by andy 
Business
how you think human resource management may be affected by these technologies or these challenges and opportunities. Given the predictions were made over ten years ago, what other challenges and opportunities do you think will affect human resource
asked by sharon 
English
I urgently need help with a couple of sentences. Can you also check my previous post. I need to prepare the letter for tomorrow. Thank you. 1) The lady at the bottom left of the photo (is "in" the bottom a mistake when describing a photo?) 2) How long is
asked by Henry2 
History
Would this be considered a shortcoming for Rosa Parks? I'm still having trouble finding somethings for this part of my presentation. She lost her job at the department store when the department store she worked at heard about her arrest, and her husband
asked by Samantha 
math problem
is the given nubers solution of the inequality? 2, 14, 12, 1 y8>2y4
asked by Lavern 
Math
1. Write the expression in symbols. The sum of 5u and v A) u + 5v B) 5u/v C) 5uv D) 5u + v
asked by Lela 
information literacy
What would a careful researcher ask about a Web site called "Facts about pesticides and health" published by the Coalition for a ChemicalFree Environment? A. How can I obtain copies of this article? B. Where was this information published? C. Is this
asked by tasha 
chemistry
A solar heating specialist is considering paraffin as a possible solar heat collector. How many kilograms of paraffin would be needed to collect as much energy as 4.73 x 10^3 kg of water? The specific heat of paraffin is 2.90J/gxC. Hint: Assume the same
asked by k 
Physics
A rock (m = 1.5 kg) moving at 4.2 m/s north collides with a ball (m = 0.061 kg) that is initially at rest. What is the velocity of the rock after the collision if the velocity of the ball after the collision was 8.4 m/s north?
asked by Zach 
Math
what's x+2y=2 4x+29=17 using addition method?
asked by junebug 
physics
where does wood come from?
asked by Anonymous 
information literacy
Which of the following will probably contain the most objective data? A. A letter rebutting an article in a medical journal B. An editorial in The Washington Post C. A report with charts documenting hourly wage rates by occupational group D. A memoir about
asked by tasha 
Math
A pack of 7 pens cost $6 . A pack of 9 files cost $12. Fred wants to buy an equal number of pens and files. What is the least amount that he must pay?
asked by Pls help! 
science
What is cladistics? What does it means? When do you use it in science?
asked by kathy 
science
When is the classification "Division" used?
asked by kathy 
english
Does "inadequate ethical views" make sense?
asked by Emerald 
math
ow do u get 49 using 9 , 6, 6, 4, 2 using , + ,X, +,
asked by Anonymous 
physics
WHAT IS(–6z – 2) /( 3.8X102)= 10
asked by nicole 
Mathematics
The sum of the numerator and denominator of a fraction is 17. If 3 is added to the numerator, the value of the fraction will be 1. What is the fraction? Explain your workings.
asked by Dale 
Alg2
If the sum of a geometric series is 781, the number of terms is 5, the common ratio is 5 and the last term is 625, what is the first term a1?
asked by Embraced 
English
I left out a very last sentence. She's been in/at the cinema for two hours. Are they both possible?
asked by Henry2 
Algebra 2
How in the world do you write "n" in expanded form?
asked by Embraced 
art appreciation
I have to do this essay and I can't find anything on this topic. I don't know if I'm looking in the wrong places or what but I would like some help if you can. This is the topic that I have to write on please help. How does symbolism expand the meaning of
asked by casandra 
Class
Which steps address the "issue" and which address the "problem"?
asked by Sam 
math
Find out how many calls must be made to make Plan A the better deal. • Plan A: $45 a month for unlimited calling Plan B $15 a month .10 per min. I need to write a cost equation for plan A and for plan B then I need to solve.
asked by Sonji 
algebra 2
solve the quadratic x222x=11 using completing the square explain in words
asked by kay 
math
Give each letter of the alphabet a money value: A= 1 penny, B= 2 penny, C= 3 penny,and so on.Find words worth 1/5 dollar, 9/10 dollar, 1 1/20 dollars, and 1 1/2 dollars.
asked by peter 
English
I need a quote on deceit, adultery affairs and superficial and materialistic views on life in the novel "The Great Gatsby"
asked by Saphire 
English
Does adultery affairs make sense?
asked by Emerald 
Math
40 percent of what number is 782?
asked by lilly 
English
I urgently need help with a couple of sentences. Can you also check my previous post. I need to prepare the letter for tomorrow. Thank you. 1) The lady at the bottom left of the photo (is "in" the bottom a mistake when describing a photo?) 2) How long is
asked by Henry2 
not sure
Jonas Salk says: “Reason alone will not serve. Intuition alone can be improved by reason, but reason alone without intuition can easily lead the wrong way.” Do you agree or disagree with this statement? By the way jonas salk made the polio vaccine. I
asked by kathy 
Chemistry
Find the product for the equation and then write a balanced equation. Cl2 + FeBr3 > ?
asked by Zoe 
science fungi
i have to fill in the blank: other fungi form ____ relationships between thems selves and other organims. Some of these relationships ________ and some ____ their hosts. I think the first answer is: mutualistic relationship I can figure out the last 2
asked by marko 
information literacy
In which part of the Career Center in the Penn Foster student library is there a link for the Occupational Outlook Handbook? A. General Resources B. International Job Services C. Employment Sources—General D. Employment Sources—Specialized My answer is
asked by tasha 
precalculus
solve logarithmic equation in exact form only. show work. log_5(x3)+ log_5(x6)log_5(x+1)=2
asked by Sara 
calculus
FIND dx/dy for y = x^(2x+1)
asked by altidore 
information literacy
Which of the following sets of call numbers is in the correct order? A. CR 209 .D97 1991 CA203 .P39 1992 CL207 .K256 1976 C201 .G37 1910 B. CA203 .P39 1992 CL207 .K256 1976 CR 209 .D97 1991 C201 .G37 1910 C. C201 .G37 1910 CR 209 .D97 1991 CL207 .K256 1976
asked by tasha 
math
Two angles are complementary. One angle is twice the other. The largest angle has a measure of what. 120, 60, or 45
asked by Nina 
LOGIC (PHI)
Truth tables can do what?
asked by Kim 
SCIENCE
Is hereditary diseases and genetic diseases the same?
asked by Jahnay 
statistics
A building has a market value of $229,000.00. If it is assessed at 50% of market value and the tax rate is 40 mills, find the property tax. I got 4,580
asked by bean 
chemistry
What is the volume of 2.10 lb of ethylene glycol?
asked by chelsea 
math
Give each letter of the alphabet a money value: A=1c, B=2c, C=3c,and so on.Find words worth 1/5 dollar, 9/10 dollar, 1 1/20 dollars, and 1 1/2 dollars.
asked by peter 
English
Is Gatsby's death due to his deceitful nature?
asked by saphire 
Math Problem
Is this ordered pair a solution of the inequality? (9,17);8x9x>2
asked by Lavern 
math (geometry)
If p∨q is true, then what must be true about the truth values of p and q?
asked by nate 
english
what is a good word for describing 'bad behaviors and complications and hopes' leading to a tragic ending
asked by saphire 
english
what is word for 'done to oneself'
asked by saphire 
chemistry
How many grams of 5.400 wt% aqueous HF are required to provide a 50% excess to react with 14.0 mL of 0.0236 M Th4+ by the following reaction? Th4+ + 4F  → ThF4 (s)
asked by john 
English
What is a memior??? How to write a memior????
asked by Laruen 
Managerial Accoutning
Describe ways in which managers implement strategy
asked by Anonymous 
Psychology
Give a possible reason that if a part of the brain were injured, the expected behavior problems might not occur.
asked by adrina 
College: HCA 210
Complete the following Workforce Provider Overview Grid. Many areas within health care are options for career placement or advancement. Research different fields within the industry and fill in each box with detailed information about the clinical health
asked by Karen 
math problem
pleas write interval notation 7
asked by Lavern 
precalculus
verify the functions are inverses of each other by showing that f(g(x)) =x show work. f(x)=6/1x g(x)= 1 6/x
asked by Sara 
math problem
please solve 4(r7)+4>5(r+2)22
asked by Lavern