Questions Asked on
October 7, 2013

physics mechanical energy
A skateboarder with mass ms = 42 kg is standing at the top of a ramp which is hy = 3.7 m above the ground. The skateboarder then jumps on his skateboard and descends down the ramp. His speed at the bottom of the ramp is vf = 6.3 m/s. Write an expression
asked by carlo 
poetry (Pioneer by Dorothy Livesay)
I have to answer the questions according to this poem, I have answered them but just want someone to look over them to see if they are right. The last one I had trouble with and need help on that one too. The answer that I think it is I have put arrows on
asked by Gary 
chemistry
Why were we instructed to add distilled water to a metal nitrate solution? What purpose does the water serve in the experiment? Just to add volume so the probe can reach the solution?
asked by Evan 
physics mechanical energy and power
A car m = 1850 kg is traveling at a constant speed of v = 30 m/s. The car experiences a force of drag (air resistance) of Fd = 300 N. Write an expression for the power the car must produce Pi to maintain its speed. Part (b) What is the power in HP? No
asked by carlo 
Physics
A spring with 50 N/m hangs vertically next to a ruler. The end of the spring is next to the 21cm mark on the ruler.If a 2.5kg mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?
asked by Anonymous 
Math help
Eric and Mark went to a ball game and visited the concession stand. They each got a hot dog, and mark got a large soda and a bag of peanuts. Eric had a coupon for 3$ off the cost. Mark Paid for the rest, which came to 11.50. Peanuts cost 4$, and a hotdog
asked by Alex 
poetry
The poem is: Canada Day Love Match My mother stalked her future son in law, convinced he was the one for me. Through the crowd at the Forks Market, she kept behind him like a cat ready to pounce. I kept out of his line of sight. Blind to us, he watched
asked by Gary 
Math
A speaker has a collection of 62 jokes. He uses 3 jokes in each speech. Please help i got a is 37820 but really need help with part b (a) In how many ways can he select 3 jokes for a speech? How many speeches can he give without using a joke twice? (Round
asked by Danielle 
Science
A 1.0kilogram book rests on a horizontal tabletop. The magnitude of the force of the tabletop on the book is
asked by Joe 
chemistry
ethane,C2H6 burns in oxygen. A. what are the products of the reaction? B. write the balanced equation for the reaction. C. what mass of O2, in grams is required for complete combustion of 13.6 of ethane? D. what is the total mass of products expected from
asked by adriane 
English 11
Match the letter of the author with his or her description. Not all letters will be used. A.William Bradford B.Captain John Smith C.Anne Bradstreet D.Olaudah Equiano E.Thomas Paine F.Thomas Jefferson 1.I wrote an account of my voyage cross on the Mayflower
asked by gabbi 
Chemistry
C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react? (b) If 24.7 g of carbon dioxide is actually produced by the reaction in part (a), what
asked by Connor 
Physics
A 55kg soccer player jumps vertically upwards and heads the 0.45kg ball as it is descending vertically with a speed of 30 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately
asked by Anonymous 
physics
Car traveling on circular track. Point A is at positive x,y. Point B is at positive x, negative y. A car is traveling around a horizontal circular track with radius r = 220 m as shown. It takes the car t = 51 s to go around the track once. The angle èA =
asked by Anonymous 
spanish
Ayer mis amigos Esteban, Ana, Olivia y yo fuimos al cine a ver la nueva película de Javier Bardem. A mí me (1) ____ la película porque Javier es uno de mis actores favoritos. Pero a (2)____ le (3)______ ; él empezó a dormirse al final. A Ana y
asked by Kayee 
Algebra1 Math
A moving company charges $800 plus $16 per hour. Another moving company charges $720 plus $21 per hour. How long is job that costs the same no matter which company is used?
asked by Raman 
CHEMISTRY
Silver reacts with nitric acid to form nitrogen monoxide, silver nitrate and water. Calculate the volume of nitrogen monoxide gas (@STP) that can be produced from the reaction of 5.00g of silver?
asked by Pip 
Econ
Shep goes to his favorite coffee shop every morning and always buys one large latte, no matter whether there is a special or not (e.g. half price Mondays). What is his price elasticity of demand for lattes?
asked by peter 
Chemistry
Calculate the molarity of a solution made by adding 28.2 mL of concentrated ammonia (28.0 % by mass, density 0.880 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 500 mL of solution. (It is important to add
asked by Sarah 
Check my CALCULUS answers please!
Any short explanation for things I got wrong would be great, too, if possible! Thanks in advanced! :) 8. Which of the following functions grows the fastest? ***b(t)=t^43t+9 f(t)=2^tt^3 h(t)=5^t+t^5 c(t)=sqrt(t^25t) d(t)=(1.1)^t 9. Which of the following
asked by Samantha 
Gen Chm II
Determine the pressurebased Keq for the reaction: 2SO2(g) + O2(g)2SO3(g) given that 1.00×10−2 moles of SO2 and 2.00×10−2 moles of O2 were initially placed in a 2.00 L reaction chamber. The chamber contained 7.5×10−3 moles of SO3 when equilibrium
asked by James 
ALGEBRA 1
You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new song. So the total number of minutes y you practice for the week is given by y=7(15+x), where x is the number of minutes you spend
asked by Kayla 
Math
A man on the 8th floor of a building sees a bucket (dropped by a window washer) pass his window and notes that it hits the ground 1.5s later. Assuming a floor is 12ft high (and neglecting air friction), from which floor was the bucket dropped?
asked by Molly 
Calculus, please check my answers!
1. Evaluate: lim x>infinity(x^47x+9)/(4+5x+x^3) 0 1/4 1 4 ***The limit does not exist. 2. Evaluate: lim x>infinity (2^x+x^3)/(x^2+3^x) 0 1 3/2 ***2/3 The limit does not exist. 3. lim x>0 (x^37x+9)/(4^x+x^3) 0 1/4 1 ***9 The limit does not exist. 4.For
asked by Samantha 
physics
A block of mass m is initially at rest at the top of an inclined plane with a height = 4.4 m which makes and angle of θ = 17 degrees with respect to the horizontal. It is observed to be traveling at v = 0.2 m/s a distance d after the end of the inclined
asked by carlo 
physics
A small fish is dropped by a pelican that is rising steadily at 0.60 m/s. After 2.8 s, what is the velocity of the fish? The acceleration of gravity is 9.81 m/s2. How far below the pelican is the fish after the 2.8 s?
asked by Anonymous 
geometry
Jk=6r,kl=3r and jl = 27
asked by katy 
Business Math
On September 14, Jennifer Rick went to Park Bank to borrow $2,500 at 11.75% interest. Jennifer plans to repay the loan on January 27. What interest will Jennifer owe on January 27? What is the total amount Jennifer must repay at maturity?
asked by Carleen 
math
Determine the vertex and the axis of symmetry for the function below: y=4x^224x36
asked by bob 
chemistry
A lab tech had accidentally set out 16M HCl for this experiment. How much ( in mL) 16M HCl is needed to make 450mL of a 3M HCl solution?
asked by Christina 
Business
Camden Products buys a $500,000 machine by taking out a bank loan.The company's assets will______by $500,000 while its liabilities will_____by $500,000. A.rise;rise B.fall;fall C.fall;rise D.rise;fall My answer is D can somebody check for me thenk you
asked by bella 
MathAlgebra
What is the measure of the side of a cube if the volume is 27000cm^3?
asked by McKenna Louise 
Math
A 120 lb. person would weigh about 20 lb. on the moon. A 150 lb. person would weigh 28 lb. on a lo, a moon of Jupiter. Use ratio tables to determine which moon would make a person weigh the most.
asked by Phoenix 
physics
A glass plate whose index of refraction is 1.47 is immersed in a liquid. The surface of the glass is inclined at an angle of 53.0° with the vertical. A horizontal ray in the glass is incident on the interface. When the liquid is a certain alcohol, the
asked by Fillipus 
Chemistry
Al(s) + HCl(aq) AlCl3(aq) + H2(g) Zn(s) + HCl(aq) ZnCl2(aq) + H2(g) Consider the unbalanced equations above. A 0.200 g sample of a mixture of aluminum and zinc metal is reacted with an excess of hydrochloric acid. Both metals react with hydrochloric acid.
asked by Connor 
English
Is this grammatically correct: In October, 1347, after decades of trading the most luxurious goods, trading ships sailed into the port of Messina, Sicily, carrying a terrifying cargothe disease now known as the bubonic plague, the infamous plague in
asked by Anonymous 
writing
As German writer Goethe said, people would be better off if they realized that "as soon as you trust yourself, you will know how to live."
asked by Anonymous 
estraellamountaincommunity college
an American football field is a rectangle with a perimeter of 1040 feet the Lenght is 200 feet more than the width find the demensionof the field
asked by robinson 
Business Math
Carol Miller went to Europe and forgot to pay her $740 mortgage payment on her New Hampshire ski house. For her 59 days overdue on her payment, the bank charged her a penalty of $15. What was the rate of interest charged by the bank?
asked by Carleen 
Math
Carla and Candice left from the same place at the same time and rode their bikes in the same direction along a straight road . Candice biked at an average speed that was threequarters of Carla's average speed. After 2 hours they were 28 miles apart. What
asked by Dan 
Chemistry
If 89J of heat are added to a pure gold coin with a mass of 20g , what is its temperature change? Specific heat capacity of gold is 0.128 J/g∘C.
asked by Kalli 
Macolm X
2011–2012 seasons, Patrice Bergeron entered a game against the Ottawa Senators with a plus/minus rating of +20. In the game, which Boston won 4–3; Bergeron was on the ice for one of his team's qualifying goals as well as all three qualifying goals by
asked by Sarah 
Geography (Ms. Sue)
1). As a train moves eastward after passing over the Ural mountains, what is the first major stop? A: ? 2). What railroad would you take if you wanted to pass north of Lake Baikal? A: You would take the BaikalAmur Mainline?
asked by Anonymous 
chemistry
An aqueous solution of glucose is made by disolving 8.75 g of glucose in 100 mL of water. Calculate molarity, molality and the mole fraction
asked by henry 
Math
a picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame (if you would,just give me the formula and i'll take it from there) thank you
asked by Bella 
English
1. I got up late and missed the bus which I had to take in the morning. I was late for school and my teacher got mad at me when I entered my classroom. I had to remain in the classroom to clean it by myself. 2. I got up late and missed the bus number 6
asked by rfvv 
Algebra 1
A square pyramid has a volume of 560 in to the third power, a base length of 10 in., and a height of 14 in. What is its base width? My textbook states that the formula v = 1/3lwh relates the volume of a square pyramid to its base length l, width w, and
asked by Anonymous 
chemistry
The use of the British thermal unit (Btu {\rm Btu}) is common in much engineering work. (1 Btu {\rm Btu} = 1054J {\rm J}) A Btu {\rm Btu} is the amount of heat required to raise the temperature of 1 lb {\rm lb} of water by 1 ∘ F ^\circ {\rm F}. How many
asked by Anonymous 
Chemistry
For the following chemical reaction, what mass of silver nitrate in grams will be needed to produce 3.91 mol of calcium nitrate? CaI2+2AgNO3=2AgI+Ca(NO3)2
asked by Noelle 
Math
a gym charges an intitL $100 membership fee and $60 each month. Write an equation that represent the total cost, C, for belonging to the club for M months
asked by Lin 
psychology
the most important aspects of classical conditioning is that the conditioned stimulus becomes a _______ for the unconditional stimulus: a signal b stimulus generalization c stimulus discrimination d highcolor conditioning support
asked by mike/meka harris 
Chemistry
In the following reaction, 451.4 g of lead reacts with excess oxygen forming 313.6 g of lead(II) oxide. Calculate the percent yield of the reaction. 2Pb(s)+O2(g)= 2PbO(s)
asked by Noelle 
Algebra 1
1). The absolute value of 2x + 4 = 0 A: 2 2). A volunteer at the zoo is responsible for feeding the animals in 15 exhibits in the reptile house. This represents 20% of the total exhibits in the reptile house. How many many exhibits are in the reptile
asked by Anonymous 
Chemistry
FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?
asked by Connor 
Practical English
This is my second time taking this exam this is the last one so I can graduate here is what I think the answers are. If you see any mistakes please help. 1. Choose the sentence in which the verb is a linking verb. A. He works at a gas station. B. His boss
asked by Silver 
PreCalculus
From the top of a 300ft lighthouse, the angle of depression to a ship in the ocean is 28°. How far is the ship from the base of the lighthouse? (Round your answer to the nearest foot.)
asked by MIsha 
English
Select the part of speech that correctly identifies the italicized word in each sentence below. The movie was wonderful, YET it was not nearly as detailed and creative as the novel. a. preposition b. conjunction* c. adjective d. interjection INDEED, it has
asked by Anonymous 
physics
Which of the following statements is FALSE regarding the ‘Drift’ of charge carriers? It is the dominant carrier transport mechanism when an electric field is applied in the semiconductor. Holes move in the direction opposite to that of the applied
asked by Anonymous 
physics
An astronaut wearing a 20kg spacesuit jumps on the moon with an initial velocity of 16 m/s. On the moon, the acceleration due to gravity is 1.62 m/s squared. What is the maximum height he reaches?
asked by Kelly 
mathalgebra
The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving
asked by Ernie 
History
How did Byzantines preserve the traditions of the Romans? could you list few for me??
asked by JJ 
physics
A stone is dropped off a cliff, the last 1.5 seconds before it reaches the ground it travels 30 meters. Find the height from which it dropped & final velocity
asked by robert 
Geography (Ms. Sue)
Find the border between France and Germany. Which French and German cities might make good international trading partners?
asked by Anonymous 
statistics
To see whether people are keeping their car tires inflated to the correct level of 35 pounds per square inch (psi), a tire company manager selects a sample of 36 tires and checks the pressure. The mean of the sample is 33.5 psi, and the population standard
asked by Anonymous 
CHEMISTRY
A 44.1 L sample of nitrogen gas at a pressure of 88.3 kPa is placed into a container of equal volume that already holds hydrogen gas at a pressure of 125.6 kPa. ! What is the partial pressure of the nitrogen in the new container? ! What is the total
asked by Anonymous 
physics
An astronaut wearing a 20kg spacesuit jumps on the moon with an initial velocity of 16 m/s. On the moon, the acceleration due to gravity is 1.62 m/s squared. What is the maximum height he reaches?
asked by Kelly 
Geography (Ms. Sue)
In 1949, near what country were the Communist nations of Europe located?
asked by Anonymous 
chemistry
When 5 grams of salt is dissolved in 95 grams of water the temperature of the solution increases 10°C how much heat is evolved the heat capacity of the solution is 1.1 cal/g°C
asked by Cheryl 
6th grade math
6 1/27/8 / 5 11/16 evaluate the expresson
asked by rupa 
statisics
Suppose 4 news anchors are randomly selected. Assume the appropriate requirements are met. If the chances of reporters working for one news anchor is 0.60, find the probability it works for three of them.
asked by Friend in need 
To "bob"
Please don't ever post whole lists (tests? Homework?) of questions and answer choices here again. We do not take tests or do complete homework assignments for students. =(
asked by Writeacher 
Physics
I need help really bad anyone good at this???? Name three different kinds of graphs that are often used to plot information and discuss the value of each.
asked by Mary Ann 
Business
Television is an attractive advertisnig medium because it A.offers a rapidly growing network audience. B.is relatively inexpensive. C.provides instant feedback which can be used to measure effectiveness. D.offers mass coverage and flexibility. I think is D
asked by bella 
Math
A house cost $85,000. The price of the house will raise 5% each year. If the price actually rise at that rate, what will the price, P, of the house equal in y years. a. Make a table for 5 years B. Explain how you calculated the price c. What number do you
asked by Vanessa 
astronomy
Can CMB show that the universe was accelerating at the time the CMB formed thus measuring dark energy early in the universe?
asked by Bella 
Science
By counting the number of H atoms and oxygen atoms in the sucrose. what is the ratio of hydrogen to oxygen? What process would this be called if you had a starch like above and added water to it so it broke down into the simple sugars the starch is made
asked by Kaylyn 
MathAlgebra
A cylindrical tank could hold 100.48m^3 of water. If the height of the tank is 2m, what is the radius of its base?
asked by McKenna Louise 
12th grade MATH
1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame (8+2x)(12+2x)96 = 96 (8+2x)(12+2x)=96+96 96+4x(2)=192 4x(2)=19296 4x(2)=96
asked by Blue 
finance 571
Chip’s Home Brew Whiskey management forecasts that if the firm sells each bottle of SnakeBite for $20, then the demand for the product will be 15,000 bottles per year, whereas sales will be 85 percent as high if the price is raised 16 percent. Chip’s
asked by Anonymous 
Science/ bio HELP PLEASE!!!!!!!
Pick the correct answer to the following question. Write a brief statement explaining why each choice of answers is correct or incorrect. A person is hyperventilating. Their rapid rate of breathing causes a loss of carbon dioxide than usual from the body,
asked by Taylor 
Life ScienceS
Essay adaptations of predator and prey and effect of predation population growth
asked by OwamIIi 
history
what is the purpose of the preamble?
asked by Mary Ann 
IR chemistry  instrumental anaylsis
my last instrumental analysis lab was basically about becoming familiar with using an IR spectrometer. I used a salt solution with a sodium chloride salt plate although it was not stated in the procedure to do so. the IR spectra seems to have come out fine
asked by Instrumental 
Physics
The coefficient of static friction between the 2.90 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?
asked by David 
math
Deepak is 10 years old, and his brother is 7 years old. In how many years time will their total age be 41.
asked by jade 
math
The position vectors of points A and B with respect to the origin 0, are (8,5) and (12,5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in
asked by kg 
Algebra 1 (Reiny)
1). A square pyramid has a volume of 560 in to the third power, a base length of 10 in., and a height of 14 in. What is its base width? 2). h + p = 3(k8)
asked by Anonymous 
maths
SOLVE (x^2 – x)2 – 14(x^2 – x) + 24 = 0 A. 3, 1, 2, 4 B. 1, 3, 4, 2 C. 3, 1, 2, 4 D. 2, 3, 4, 1
asked by mdan 
algebra 1
Guitar Practice You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new song. So the total number of minutes y you practice for the week is given by y 5 7(15 1 x), where x is the number
asked by Jynessa 
Math Middle
I used my gas tank and used 7/16 of gas. Then I used another 1/3 of the remaining gas what fraction of the tank is filled with gasoline. My Answer is 7/8 of the tank is filled.
asked by Mary 
math homework
A37 foot long Submarine sanwich is cut in to three piece.the shortest piece is x feet long.the second piece is twice as long as the shortest piece.the longer piece is 2 feet longer than four time the length of the shortest piece.find the length of all
asked by robinson 
English
1. A few minutes later, the dog started to have a stomachache and we had to take him to the hospital. 2. A few minutes later, the dog started to groan lying on the floor, so we had to take him to the hospital. 3. A few minutes later, the dog began to make
asked by rfvv 
Finance
Assume that Pelon Inc. has issued a 10 year maturity bond with a yield of 8%. Its coupon rate is 5% and the coupons are paid semi annually. Its par value is the value of this bond at the issue date?
asked by Kay 
physics
where must a 1200n weight be hung on a uniform, 200N pole so that a boy at one end supports onethird as much as a man at the other end?
asked by ghel 
Health
How can you determine (approximately) a serving size if you do not have a nutrition label to read?
asked by Anonymous 
Math
Arman has 1160 annual income from bonds bearing 3% and 5 % interest. then he added 25% more of the 3% bonds and 40% more of the 5 % bonds, thereby increasing his annual income by 410. find his initial investment in each type of bond (if you would,just give
asked by Bella 
Math
A baseball pitcher has pitched a total of 25 innings so far during the season and has allowed 18 runs. At this rate, how many runs, to the nearest hundredth, would he allow in nine innings? This number is called the pitcher’s earned run average, or ERA.
asked by Jamie 
math Too Hard!
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.
asked by Ernie 
Geography
I need a map of South America countries that shows their mineral deposits in details. Can someone please give me a website?
asked by Krystal 
Physics
Help plz!!! Where are all the helpers??!! ahhhhhhh :p Explain what chart junk is and how it differs from the kind of items you should include in your graphs. Provide four examples.
asked by Mary Ann 
Geography
Does anyone know a good website that shows South American countries natural resources in detail?
asked by Krystal 
Math
THC, the active ingredient in marijuana, is said to have a halflife of about one day. If someone ingests 3 grams of THC, write an equation to represent M, the amount of marijuana in his system when he tested d days later.
asked by aprial 
math
how much money do I need to deposit today to end up with 13000.00 in 3 years with interest rate 6.5
asked by DJ 
Biology simple question
Why is wavelength data important in terms to spectrophotometer. TY SO MUCH!!!
asked by Karli 
prealgebra
a local newspaper can be ordered for delivery on weekdays or sundays. a weekday paper is 35 cents and the sunday edition is $1.50. the stadles ordered delivery of the weekday papers.the month of march had 23 weekdays and april had 20. how mach should the
asked by cayla 
Algebra 1 (Reiny)
12a  11 = 9a  1?
asked by Anonymous 
algebra 1
410y=226x Solve the Equation for y
asked by Katie 
math preagebra
how do i write this equation cars the marton family took a vacation that covered a total distance of 1356 miles. the return of the trip was 284 miles shorter than the first part of the trip. how long was the return trip?
asked by cayla 
Algebra 1
A vending machine had to be programmed to accept any combination of nickels, dimes, and quarters that totals 40 cents. How many different combinations are possible?
asked by Alexandra 
physics
Two soccer players start from rest, 32 m apart. They run directly toward each other, both players accelerating. The first player’s acceleration has a magnitude of 0.55 m/s2. The second player’s acceleration has a magnitude of 0.40 m/s2. (a) How much
asked by monica 
Science
What term describes the size of a starch?ƒ°
asked by Kaylyn 
foreign language
i want to speak spanish, french were do i start to learn those languages
asked by cayla 
Science
What building blocks are starches made of? What is the difference between sugar and starch? What term describes the size of a starch? What molecule has to be added to a starch to break it down?
asked by Hannah 
Science
Where in you body would starches start being broken down when eaten? What process was being demonstrated when you put the three glucoses together? What general term refers to monosaccharaides, disaccharides and polysaccharides because when they break down
asked by Joe 
math
A firm's sales for the month total $30,000. If the ratio of cash to credit sales is 2:3, what do cash sales total?
asked by diane 
math
The position vectors of points A and B with respect to the origin 0, are (8,5) and (12,5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in
asked by Kg 
History
What was the name of the people who settled Gaul that became modern France? Was is the romans??? or the celtics???
asked by JJ 
physics
You are riding in a boat whose speed relative to the water is 4.5 m/s. The boat points at an angle of 25.1¡ã upstream on a river flowing at 12.8 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 26.2 m wide.
asked by regina 
Algebra 1
Solve h + p = 3(k8) for k.
asked by Anonymous 
Math
How would you use set builder notation to show that sine is discontinuous at every interval pi?
asked by Anonymous 
English
1. In three minutes, he started to shout. 2. After three minutes, he started to shout. (Which preposition should we use? Which one is right?) 3. Three minutes later, he started to shout. 4. Some minutes later, he started to shout. 5. After a short time, he
asked by rfvv 
Biology
Caenorhabditis elegans hermaphrodites have six different homologous chromosome pairs: five pairs of autosomes (called IV) and one pair of sex chromosomes (called X). Hermaphrodites can either selffertilize or they can be fertilized by males (which only
asked by Marina 
Math
Han Song cycled 2 1/4 Km to the playground to meet his friend. Then, he cycled 1 2/5 km to the hawker centre to have lunch. What was the total distance Han song cycled?
asked by Anonymous 
math word problem
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.
asked by Ernie 
Math
how many terms of the arithmetic sequence 5,1,3,… must be added to reach the sum of 400
asked by PreCal 
math
what is m4 (m to the 4th power)
asked by Kim 
physics
where must a 1200n weight be hung on a uniform, 200N pole so that a boy at one end supports onethird as much as a man at the other end?
asked by ghel 
Chemistry
Find the concentration of the polyprotic weak acid given the following:  1 equiv needs 6 ml NaOH, 2 equiv needs 18 ml NaOH, 3 equiv needs 28 ml NaOH  pKa1 = 2, pKa2 = 3.9, pKa3, 10  Molarity of NaOH = 0.175  Total volume of NaOH = 28 ml  Volume of
asked by OR 
physics
A ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed relative to the shore?
asked by jaz 
poetry
Hi, I am analyzing a poem which is Sick Rose by William Blake. O Rose thou art sick. The invisible worm, That flies in the night In the howling storm: Has found out thy bed Of crimson joy: And his dark secret love Does thy life destroy. I need to know the
asked by Shannon 
Finance
Harrison Inc. has issued a zero/ coupon bond with par value of $1000. The bond pays no coupons until the end of the 6th year, at which point it pays 10% annual coupons. What is the issue (initial) price of this bond if it has a 20 year maturity and yield
asked by Kay 
Calculus
using d^2(h)/dt^2=−g+k(dh/dt)^2, find an expression for the terminal velocity in terms of k and g? g is the acceleration due to gravity, k is a constant, h(t) is the height of the falling object, dh/dt is its velocity, and d^2(h)/dt^2 is its
asked by Brad 
Math
I need help on how to work the problem below. The teacher said the answer is 11, but I don't understand how you get there. "The Big Screamer Coaster carries 92 people altogether. Some if its cars carry 4 passengers,and the rest carry 6 passengers. There
asked by Brandi 
Math help!! for finals
1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame 2.)Arman has 1160 annual income from bonds bearing 3% and 5 % interest. then he added
asked by Lewis 
Biochemistry
Can someone help me calculate protein concentration using the Bradford Assay? If you could show me how to do tube 2, that'd be great. Tube 1: 0 ul Protein Stock Solution, 800 ul Water, 0 ug Protein, Absorbance @595nm = 0 Tube 2: 10 ul Protein Stock
asked by OR 
Algebra, help needed
I need help I don't know how to solve this system Solve the following system. Show all your work 3x2y+2z= 30 x+3y4z= 33 2x4y+3z= 42
asked by Mary Ann 
science
Can CMB radiation show that the Universe was accelerating at the time the CMB formed thus messuring dark energy early in the universe?
asked by Mia 
Urgent
3) List 3 strategies to help escape riding in a vehicle with an impaired driver.
asked by Urgent 
quantum physics
Can anyone help me to solve this problem? Suppose we have a particle in 1dimension, with wavefunction Ae^(âˆ’x2d). What is the probability to find the particle in the interval [0,d]? Please provide your answer in terms of A, d, mathematical
asked by Judy 
quantum physics
Suppose a particle has wavefunction Ïˆ(x,t=0)=Aexpâˆ’(x^2/2l^2). What is the average value (expectation value) of p^, âŸ¨p^âŸ©, for this state at t=0?
asked by Judy 
quantum physics
The variance ÏƒX^2=âŸ¨(X^âˆ’âŸ¨X^âŸ©)^2âŸ© of an operator, X^, is a measure of how large a range its possible values are spread over (the standard deviation is given by Ïƒ=sqrt(Ïƒ2)). Suppose that XâŸ© is an eigenstate of some
asked by Judy 
English
Which is correct 3). or 3.)? Also, when writing a list in a sentence, in which manner is correct? For example: 1). Poverty. 2). The rebellion. (Or) 1). Poverty 2). The rebellion
asked by Anonymous 
English
What length is an appropriate summary?
asked by Anonymous 
astronomy
Is morphing of particles to antiparticles(for exampe:neutrio)key for assimetry between matter/antimatter?
asked by Bela 
Chemistry
How do I convert micrograms/mL to micromol/L? Thanks
asked by AA 
History
Explain how the 3/5ths Compromise is connected to the Great Compromise.
asked by Fort 
astronomy
which of the statment about CMB are true?
asked by Bela 
Kharkutta govt. School
Split 597 into three parts such that these are in A.P. and the product of the two smallest parts is 796
asked by Silkhan momin 
Math
May I please have some help solving these problems on my homework? Thank you. :) 38. p = 29.16 41. Your class sold raffle tickets. Out of every 15 tickets, 14 did NOT win. There were 24 winners. How many tickets were sold? Explain your method and why you
asked by Genna 
astronomy
Can CMB show that the universe was accelerating at the time the CMB formed thus measuring dark energy early in the universe?
asked by Bella 
pyschology
I am writing a paper for Pyschology about how I have a tendency after washing my hands I have this pattern to take the paper towel or hand cloth and use it to open the door. Which psychological theory would this fall under? 1.Classical Conditioning 2.
asked by Christopher 
astronomy
Why the Universe ,as we know it,made of matter,with no antimatter,and what is the role of neutrino? Thanks
asked by Mia 
maths2
Use the discriminant to determine the number of real roots the equation has. 7x2 + 3x + 1 =0 A. One real root (a double root) B. Two distinct real roots C. Three real roots D. None (two imaginary roots)
asked by mdan 
physics
A baseball is hit at a height of 1.1 m with an unknown initial velocity at 38 ° above the horizontal. It just clears a barrier of height 36.1 m at a horizontal distance of 63.0 m. Find: a) the initial speed;
asked by Louis 
math
Maurice puts 130 trading cards in protector sheets. He fills 7 sheets and puts the remaining 4 cards in an eighth sheet. Each of the filled sheets has the same number of cards. How many cards are in each sheet?
asked by manika 
Geography (Ms. Sue)
Is this correct: However, in the 1300s, as preventive measures have become discovered, most doctors recommended these methods or purifying the air to prevent plague: 1. Burn richly scented incense. 2. Fill the house with flowers. 3. Sprinkle the floors
asked by Anonymous 
english
compare and contrast decolonising the mind with another similar essay
asked by momodou 
Science
What process is being demonstrated when you put 3 glucose's together?
asked by Hannah 
Science
Is the ratio the same in one glucose and the sucrose when it's reduced?
asked by Joe 
Math
My Math questions are: Find 1/10 of 1/100 of a meter = 1/10 meters. Find 1/60 of 1/60 of an hour = 1hour Am I correct. Thanks
asked by Americal 
chemistry
a metal object has a mass of 8.37
asked by Anonymous 
Life orientation
Name five sources of the environmental health hazard that can contribute to ill health insidehome
asked by Themba 
Creative Writing
Need help describing something. I'm not good at writing horror or graphic death and such. In my story, a tree's branches basically 'come to life,' but I'm not sure what kind of details to use for the branches if they're like elastic and bend and twist like
asked by Lindsay 
finanical accounting
Assume that you are the president of Gaslight company. At the end of the year (December 31, 2011 of operation.
asked by shirley 
CALCULUS
using d^2(h/dt^2=−g+k(dh/dt^2, find an expression for the terminal velocity in terms of k and g? g is the acceleration due to gravity, k is a constant, h(t) is the height of the falling object, dh/dt is its velocity, and d^2(h)dt^2 is its acceleration.
asked by Brad 
math alegebra
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.
asked by Ernie 
Chemistry
Find the concentration of the polyprotic weak acid given the following:  1 equiv needs 6 ml NaOH, 2 equiv needs 18 ml NaOH, 3 equiv needs 28 ml NaOH  pKa1 = 2, pKa2 = 3.9, pKa3, 10  Molarity of NaOH = 0.175  Total volume of NaOH = 28 ml  Volume of
asked by OR 
HELP PLEASE  Chemistry
I need help with answering this question. What is the absolute entropy of 1.9 mol of gaseous ammonia at 2.8 bar and 298 K?
asked by Anonymous 
Business Math
Fran Mallory is married, claims five withholding allowances, and earns $3,500 (gross) per month. In addition to Federal income tax (FIT), social security, and Medicare withholding, Fran pays 2.1% state income tax, and ½% for state disability insurance
asked by Shytanna 
Physics
A spring has an unstretched length of 9.8 cm. The potential energy stored in the spring is V when the spring is streched to a length of 11.8 cm. What is the stretched length of the spring when its potential energy is 2.2 V? What compressed length will
asked by Maddie 
LiFe Sciences..
1.explain how a species may display a herd or flock behavior as a survival strategy? 2.Name one other social behavior that animals may display as a survival strategy?
asked by Owamiiiii 
physics
A velodrome is built for use in the Olympics (see the figure below). The radius of curvature of the surface is 19.1 m. At what angle should the surface be banked for cyclists moving at 11 m/s? (Choose an angle so that no frictional force is needed to keep
asked by nerma 
dma040
Explain which terms are alike 7xy 9x^2 15xy^2 14xy
asked by Bridget 
physics
meter stick is located at 50.5 cm and the stick is supported at 60 cm. where must a 190 gram load be hung in order to have equilibrium?
asked by ghel 
dma040
Solve for x. 13/14x + 8/7 = 6/7x
asked by Bridget 
Finance
Suppose Preun Inc. issues $200 million in 60 day maturity commercial paper at a price of 99.35 par. (commercial paper is like a zero coupon bond. You buy it at a price of less than its par value and it pays the investor par value at the maturity date.) It
asked by Kay 
math
using d2h/dt2=−g+k(dh/dt)^2, find an expression for the terminal velocity in terms of k and g?
asked by Molly 
dma040
Police officer to Speedzilla he was speeding at or above 120 miles per hour. Write an inequality to express Speedzilla speed, then show in graph, write in set notation.
asked by Bridget 
Geography
The 600 pounds of cream cheese got delivered to the zoo in Moscow . By 7:00am Wednesday morning all of the cream cheese had been eaten by the animals .three hours later you get the news and call San Francisco to inform them of thd mistake .what time is it
asked by Anabelle 
math
the perimeter of a rectangle is 3 times the length, plus twice the width. what is the equation to find the perimeter of the rectangle?
asked by Zion 
Math
1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame 2.)Arman has 1160 annual income from bonds bearing 3% and 5 % interest. then he added
asked by Lewis 
Algebra
Help plz!!!! (This homework question has been removed due to a copyright claim submitted by K12, Inc.)
asked by Mary 
social studies
Townshend Acts: Why did the British take this into action?
asked by Nikki 
castlemont
travis sister is 5 years less than twice his age how he can express this expression
asked by miguel 
Introductory & Intermediate Algebra
A bill was defeated in the legislature by 50 votes. If onefifth of those voting against the bill had voted for it, the bill would have passed by 30 votes. How many legislators voted for the bill?
asked by Gregg 
Statistics
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.9 years of age. If the standard deviation is assumed to be 4.3 years, find the probability that a random sample of 32 U.S. women would
asked by Casey 
algebra
can someone show me how to solve this the instructions are for me to solve by the quadriatic formula is this really 8 grade math im confused im trying to help my daughter tammi and i have never run across this before X^2 + 9=0
asked by tammi 
Math
Place the following number in order from Least to Greatest. A. 64.34 B. 64.5 C. 64.17 D. 64.3
asked by Anonymous 
algebra
Determine the number and types of roots for each equation X(X+3)=2
asked by john 
algebra
Determine the number and type of roots for each equation. thanks inadvance can u please show mw step by step thanks 2X(X+2)=2
asked by john 
algebra 1
6x3y=12 Solve the Equation for y
asked by Anonymous 
math
I am ready to make pancakes. Each individual pack needs 2/3 cup of milk but I only have a 3/4 measuring cup. What do I do?
asked by xav 
math
find the perimeter of five bricks (3x)+(2x+2)+(5x3)+(2x+2)
asked by cayla 
Chemistry
What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?
asked by Connor 
physics
An elevator is stopped at the ground floor. It starts moving upwards at constant acceleration a>0 for 5 seconds. It then keeps a constant speed for 35 seconds. Finally, it slows down with an acceleration of the same magnitude (but opposite direction) −a
asked by Help!! 
Chemistry
How many mL of 5.00 M NaCl must be diluted to produce 2.40 L of 0.150 M NaCl?
asked by Russel 
Math
the number is less than 20 it is an odd 1 digit number, is not the number of sides of a triangle it can be divided by 3
asked by Gio 
physics
An elevator is stopped at the ground floor. It starts moving upwards at constant acceleration a>0 for 5 seconds. It then keeps a constant speed for 35 seconds. Finally, it slows down with an acceleration of the same magnitude (but opposite direction) −a
asked by Help!! 
figure of speech
The World is as big as....
asked by Ruth 
Taking Time to Thank
I want to thank all the homework helpers who have helped me in the past. Ms. Sue Steve Writeacher Jai I really appreciate all of you guyz helping me out, you improved my grades and i thank you because of that :)
asked by Mary Ann 
science
What is formed if solid copper sulfate is mixed with water
asked by cece 
MAth
Ok so basically we have to choose a topic of interest and then survey it... one that you can obtain numerical data from that has the potential to have responses with a significant amount of variation. and then create a question to ask/investigate. Be sure
asked by Lululu 
Please Help
Can someone please help with the chemistry problems? I need them to study.
asked by Russel 
English
Is a comma required in this sentence? "James ran to the grocery store, and David walked to the library."
asked by Anonymous 
mathematics
Use the discriminant to determine the number of real roots the equation has. 3x2 – 5x + 1 =0 A. One real root (a double root) B. Two distinct real roots C. Three real roots D. None (two imaginary roots)
asked by mdan 
physics
A baseball is hit at a height of 1.1 m with an unknown initial velocity at 38 ° above the horizontal. It just clears a barrier of height 36.1 m at a horizontal distance of 63.0 m. Find: a) the initial speed;
asked by Louis 
STAT
You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 2 and a sample size of 4. Machine 2 has a sample mean of 10 and a population standard deviation of 2 with a
asked by Tammy 
Math Exponents
A closet has a volume of 5^3 cubic feet. Which of the following is equal to 5^3? A.)15 B.)25 C.)125 D.)243
asked by Jared 
math
A small pool contains about 7, 600 liters of water. The greatest amount of water the pool could have is blank kilometers
asked by deflice 
Geography (Ms. Sue)
Is there more trade within the EU or between the EU and nonmembers countries? Explain? A: There is more trade within the EU because ?
asked by Anonymous 
math prealgebra
a paved brick is 3x , 2x+2 , 5x3 , 2x+2 find the perimeter of five bricks
asked by cayla 
college chem
a compound containing
asked by Erika 
Geography (Ms. Sue)
What is the value placed upon education in the countries of Russia and the Republics? A: The value placed upon education is extremely high in the region?
asked by Anonymous 
Data Management
1. How many eight digit even numbers are possible with the digits 7 5 4 5 7 5 0 7? Is the correct answer 240? If not, please explain. 2. Express t(6,3) + t(6,2) as a single term from Pascal's Triangle. *The (6,3) and (6,2) are subscripts of t.
asked by Rayne 
chem
A sample of gas has an initial volume of 32.6L at a pressure of 1.2atm.If the sample is compressed to a volume of 13.4L , what will its pressure be? (Assume constant temperature.)
asked by kristine 
Exponents and division 8th grade
x^4/x^16 i don't know 12^10/12^2 12^8 5n^14/20n^7 i don't know 6^8/6^8 1 a^9b^5/a^3b^15 i don't know /=divided by
asked by rockrboigurlluvr14 
PreCalculus
For the function f(x)=3x^3−42x Compute the difference quotient [f(x+h)−f(x)]/h,h≠0 I checked my work like 3 times and still got [(2x^3)+(3hx^2)+(3xh^2)+(h^3)(42h)]/h Is it wrong?
asked by Ann 
economics
Speculate as to why price leadership is legal in the U.S. whereas price fixing is not?
asked by mark 
Reading
64.8% Of students went to the football game are the other half was busy . Can you multiply to get the answer
asked by Jessica 
Math
Lakeisha placed $120 in a savings account earning simple interest. Find the interest rate if her account is worth $124.20 after one year.
asked by Helen 
Math
Meda invested $1,000 into a particular stock. In four months, her stock was worth $3,000. Find the percent of increase in her investment.
asked by Mary 
Trig
a child puts beads on one spoke of a bicycle wheel. the tire has a diameter of 2ft. if the child rides so that the tire makes one full rotation every 15 sec, and the beads begin in the horizontal outward position, find an equation that models the position
asked by Bailey 
Math
Determine the range of each function a)f(x)=(x^2+3)^2,XER Answer is f(x)ER, f(x)>9 b)f(x)=1/3+x^4,XER Answer is f(x)ER, 0
asked by Jordan 
Bio
How many chromatids per diploid nucleus (in a diploid somatic cell) will there be after Telophase of mitosis in C. elegans male cells?
asked by Anonymous 
Calculus
If f(x)= (1cosx)/x and g(x)= 2/x on the interval (0,infinity), how would you identify all vertical asymptotes of f and g?
asked by CeCe 
Physics
Imagine that if you drop an apple from a certain height, its final speed is 20 m/s when it reaches the ground. If you throw the apple vertically downward from the same height with an initial speed of 20 m/s, what will be its final speed? I tried
asked by Maddie 
Chemistry
Balance the redox reaction: Ag(aq)+Cu(s)= Ag(s)+Cu(aq)
asked by Noelle 
English
1. My sister and I took part in school marathon yesterday. 2. My sister and I took part in a school marathon yesterday. 3. My sister and I took part in the school marathon yesterday. 4. My sister and I took part in School Marathon yesterday. 5. My sister
asked by rfvv 
English
1. He ran for class leader. 2. He ran for a class leader. 3, He ran for the class leader. (Which one is grammatical?)
asked by rfvv 
science physics
arthur is riding a horse at a velocity of 4m/s. four seconds after, he is already traveling at a velocity of 12m/s. what is his acceleration
asked by Fatima 
Math
Find the length of the arc (sector question) Radius=8cm Angle=27
asked by Bob 
English
1. I was lifting some weights at the gym last night. 2. I was lifting some weights in the gym last night. 3. We played dodgeball at the gym. 4. We played dodgeball in the gym. (Do we have to sue 'in' or 'at'? Which ones are grammatical?)
asked by rfvv 
math
Round 9.46531 to nearest hundredth.
asked by kim 
Character ed
What are some good ideas for a vision board ?
asked by Anonymous 
Calculus
solve for dv/du dQ/du= 38u + [(u+v)^2(18+19dv/du) (2(18u+19v)(u+v)(1+dv/du)]/ (u+v)^4 u=10 v=25 I am confused how u solve for the dv/du in this big equation and reducing and stuff like that thanks!! this is about implicit di
asked by Rebekah 
Algebra
I need help I don't know how to solve this system Solve the following system. Show all your work 3x2y+2z= 30 x+3y4z= 33 2x4y+3z= 42
asked by Mary