Questions Asked on
October 9, 2014

College Math
A block with a mass of m = 31 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative xdirection with a magnitude of F1 = 11 N. The second has a magnitude of F2 = 22.75 N and acts on the
asked by John 
physics
An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v = 6.5 m/s in the positive xdirection. The coefficient of kinetic friction between the skates and the ice is μk = 0.23. v = 6.5 m/s μk = 0.23 A. Using the
asked by TJ 
Physics
A horizontal force, F1 = 85 N, and a force, F2 = 18.4 N acting at an angle of θ to the horizontal, are applied to a block of mass m = 2.1 kg. The coefficient of kinetic friction between the block and the surface is μk = 0.2. The block is moving to the
asked by Harry 
Science
A mutation in a gene that controls mitosis in cells may cause? A. Cancer B. Cystic fibrosis C. Albinism D. Meiosis. Is the answer B? Thanks
asked by Anonymous 
Science
How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different
asked by Anonymous 
Science Physics
On the surface of the Moon an astronaut has a weight of Fg = 120 N. The radius of the Moon is Rm = 1.74 x 106 m, the gravitational constant is G = 6.67 x 1011 N m2kg2 and the mass of the Moon is Mm = 7.35 x 1022 kg. Solve numerically for the mass of the
asked by Precious 
Science
How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different
asked by Anonymous 
science
1.Darwin assumed that evolutionary change was always slow and gradual. What was the first evidence that suggested evolution change might happen fast sometimes? A. Homologous structures B. Fossils*** C. Reproduction rates D. DNA sequences 2.Which of the
asked by Alyssa 
Physics
Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. T = 11000 N A. What force would you have to exert perpendicular to the center of the rope to produce a force of 11000 N on the car if
asked by Stephanie 
Geometry
How do I solve this? Complete the twocolumn proof. Given : 11x – 6y = –1; x = 8 Prove: 89/6= y 11x – 6y = –1; x = 8 88 – 6y = –1 –6y = –89 y = 89/6 89/6= y • a. Given; b. Symmetric Property of Equality; c. Subtraction Property of
asked by Sandra 
art history
why would an artist choose to use harmony in a piece of artwork? A.to create drama within a piece B.to create an average subject that seems dynamic C.to create an impression that the artist is troubled D.to gave a pleasant feeling within the piece that all
asked by Baxie 
statistics
During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision
asked by ANAHI 
College Science
A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 5.3 kg. A. If the tension in one chain is represented by T, write an expression for this tension in terms of m and g, the gravitational acceleration on
asked by Sam 
Math
According to the 2010 census, the population of Nebraska was 1.8*10^6 people. Which state had a smaller population? A. Califoria: 3.7*10^7 B. Rhode Island: 1.1*10^6 C. Texas: 2.5*10^7 D. Missouri: 6*10^6 B?
asked by Anonymous 
Math
If the stemandleaf plot shows kilometers walked by participants in a charity benefit walk. How do I determine how many people participated in the walk and how many of the walkers traveled more than 14 kilometers? I don't want the answer. I just want to
asked by Denise 
Physics
A man drags a 180 lb crate across a floor by pulling on a rope inclined at 20.0 degrees with the horizontal. If the coefficient of static friction is 0.560 , and the coefficient of kinetic friction is 0.350, find the acceleration (in feet/second^2) of the
asked by Bryce 
Physics
A crate sets on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate (gravity would be acting into the page). Man one and man two apply forces F1 and F2, at angles of θ1 and θ2 respectively, with the
asked by Johnny 
physics
a high jumper approaches the takeoff point at a speed of 7.20 m/s. Assuming that only this speed determines the height to which he can rise, find the maximum height at which the jumper can clear the bar.
asked by Anonymous 
science
3.If a gap in the fossil record exists between ancient and modern forms of a species, which of the following is the most appropriate conclusion? A. The gap indicates that gradualism must have occurred for the species to evolve from ancient to modern
asked by Alyssa 
physics
A ring of mass m slides on a smooth vertical rod. A light string is attached to the ring and is passing over a smooth peg distant a from the rod, and at the other end of the string is a mass The ring is held on a level with the peg and released. It first
asked by deepanshu 
math
About 25% of those called will find an excuse to avoid jury duty. If 11 people are called for jury duty, what is the probability that all 11 will be available to serve on the jury? (Round your answer to three decimal places.)
asked by Lizzie 
Science
1. When evolution was first proposed, which of the following was used as evidence to support the idea? A. observations of nature B. laboratory experiments C. extensive fossil collections D. genetic sequences 2. How did Darwin and Lamarck differ in their
asked by Kaela 
Physics
The mass of a sports car is 1200 kg. The shape of the car is such that the aerodynamic drag coefficient is 0.250 and the frontal area is 2.30 m2. Neglecting all other sources of friction, calculate the initial acceleration of the car ,if it has been
asked by Alex 
Social studies
How has the US economy changed over the past 50 years? I know it used to be mainly farming and manufacturing but now we have expanded on this with medical research technology, and education but I need help expanding this answer
asked by sydney 
Pre algebra
Which statement is true? A.every realy number is an integer B.every rational number is a real number C.every rational number is a perfect square D.every integer is an irrational number An estimate for ✔️47 is between A.4&5 B.5&6 C.6&7 D.7&8 An estimate
asked by Misty 
ap physics
A 52kg skier starts at rest and slides 30m down a hill inclined at 12 degrees relative to the horizontal. List five quantities thatbdescribe the motion of the skier and solve for of them( aleast one of them should be be a kinematic quantity). I know these
asked by debora 
Algebra please help answer
Ursula wrote the sum of 5.815 plus 6.021 as a sum of two mixed numbers? A. What sum did she write? B. Compare the sum of the mixed numbers to the sum of the decimals? Please help answer ASAP. Thanks
asked by Ms. Liz 
Math
The mass of the Earth is close to 5.97x10^24 kg and the mass of Venus is close to 4.87x10^24 kg. What is the approximate combined mass of both planets A.1.08x10^25 B.2.91*10^49 C.1.08^10^48 D.1.08*10^25
asked by Coleson 
Algebra
A carpenter who is installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses 4 shims to fill a gap that is 1.2 centimeters wide. Three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.09 centimeter wide. What
asked by Ms. Liz 
Algebra 2
Ahmad will rent a car for a day. The rental company offers two pricing options: Option A and Option B. For each pricing option, cost (in dollars) depends on miles driven, as shown below. Costindollars Milesdriven OptionA OptionB (a) If Ahmad drives the
asked by Anonymous 
Chem 30 Thermodynamics
Your friend comes across a good deal to purchase a gold ring. She asks you for advice for you to test the ring. The ring has a mass of 4.54 g. When you heat the ring with 94.8 J of energy, its temperature rises from 23.0 degrees celsius to 47.5 degrees
asked by Justin 
statistics
During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision
asked by ANAHI 
language art
Is digging a present participle? My answer yes . Am I correct?
asked by anonymous 
English
Question about the short story the Wager by Anton Chekhov: The climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. True or False I am really
asked by Aivar 
Math! Please check!
Given that lines AC and GE are both perpendicular to line BF, and AG and CE are both perpendicular to GE, you can conclude that? A AG = CE B BC = CD C lines AC and GE are perpendicular to each other D lines AE and CG are perpendicular to each other My
asked by Skye 
Econ
F. Flinstone has quasilinear preferences and his inverse demand function for Brontosaurus Burgers is P(b)= 302b. Mr. Flintstone is currently consuming 10 burgers at a price of 10 dollars. (a) How much money would he be willing to pay to have this amount
asked by Kitty 
Math
Sophia owes her brother $25. she gives her brother $18 she earned dog sitting. Write an addition expression to describe the situation
asked by Gio 
Empirical Inquiry
Assume that true proportions of the people who support "Obamacare" is a quarter of the population. If you took a sample of 1,000 people living in the United States, what would be the variance of this estimator? what would be the expected value of your
asked by John 
HISTORY
1. Discuss the influence of World War I and its aftermath on the arts. Explain what events or experiences inspired artists of all kinds to experiment with new approaches. Then describe the changes that came about in two of the following fields—painting,
asked by ANDRES 
chemistry
Calculate (a) the moles and (b) the mass of magnesium carbonate at the start if 0.2 moles of sulfuric acid is added to the magnesium carbonate and the excess sulfuric acid made up to a 250 cm3 solution. 25 cm3 of this solution required 0.03 moles of sodium
asked by sabs 
physics
Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time
asked by Mariah 
physics
a vertical spring whose spring constant is 850 n/m stands on a table and is compressed 0.400m. what speed can it give to a .300kg ball when released?
asked by Anonymous 
physics
What force is necessary to keep a 2.00x10^3 car moving up a 15.0 degree incline at a constant velocity? (Mu=.200)
asked by Abbie 
economics
which ones are true or false? property rights include the right to buy or sell one's resources and goods All countries are equally effective at enforcing property rights Property can be tangible or intangible The enforcement of property rights prevents
asked by joshkuss 
Science: Plate Techtonics (giving out medals)
Hey there! I need help with some answers 1. Why do earthquakes occur along the San Andreas fault line? 2. Which of the following causes Earth's plates to move continuously? 3. Which of the following physical features are not caused by plate tectonics?
asked by PandaLurve21 
chemistry
In the laboratory a student combines 25.9 mL of a 0.223 M magnesium bromide solution with 23.3 mL of a 0.615 M magnesium acetate solution. What is the final concentration of magnesium cation ? ..... M
asked by ? 
science
if the trend in the graph continues through the summer, what would you expect the average high temperature in Louisville, Kentucky, to be in august? A. 66 degrees F B. 83 degrees F C. 103 degrees F D. 125 degrees F please help!
asked by shay 
Physics
A swimmer wishes to swim across a river 600m wide. If he can swim at the rate of 4 km/h in still water and the river flows at 2 km/h, then in what direction must he swim to reach a point exactly opposite to the starting point and when will he reach it? I
asked by Aashish 
Science
A person who has cystic fibrosis? A. Inherited two normal alleles from a parent. B. Inherited one mutated allele and one normal allele from each parent. C. Inherited two mutated alleles, one from each parent. D. Inherited two mutated alleles from a parent.
asked by Anonymous 
math
3 wires with lengths of 32 cm, 24 cm and 16 cm are to be cut into pieces with the same length (with no wire left over)What is the greatest possible length of each piece of wire?
asked by colorful 
pre calculus
sinB + cosB cotB = cscB
asked by Orlando 
Math
A carpenter makes a triangular frame by joining three pieces of wood that are 20 cm, 24 cm, and 30 cm long. What is the measure to the nearest degree of the smallest angle in the frame? (Enter only the number.)
asked by TeeKay 
Physics
The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a horizontal direction and the force of 58 N acts on the block at an angle(top Right). What is the magnitude of the resulting acceleration
asked by Isaac 
physics
An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The
asked by Johnny 
Science
What is a genetic mutation? A. The process of decreasing chromosomes numbers to half of what the parent cell has B. The copying of DNA to form identical daughter cells C. A permanent change in an organisms genetic code D. a fusion of egg and sperm cell to
asked by Anonymous 
Math
Which expression has a value of 199? A 4 x 28 + 6 x 17  15 B 4 x 17 + 6 x 28  38 C 4 x 38 + 6 x 15  28 D 4 x 15 + 6 x 38  88
asked by Aurora 
physics
The weight of an astronaut plus his space suit on the Moon is only 270 N. A. How much do they weigh on Earth, in Newtons, assuming the acceleration due to gravity on the moon is 1.67m/s^2= 1584is this right? B. What is the mass of the astronaut and his
asked by David 
Social Studies
Why is diplomacy a key part of U.S. foreign policy? Because it helps prevent wars and helps countries settle issues and work together I really don't know
asked by sydney 
PreCalc/Trig...
Which of the following quadratic functions has a graph that opens downwards? check all that apply A. y=2x^29x+3 B. y=x^2+4x+8 C. y=(5+2x^2) D. y=60x15x^2
asked by Anonymous 
biology
Aquatic organisms: A. have a waxy coating to prevent water loss B. may experience problems with water balance C. typically have a plentiful supply of nitrogen. D. never find light to be in short supply
asked by cc 
economics
Producer surplus is the difference between: the maximum price a seller is willing to accept and the market price. the maximum price a buyer is willing to pay and the market price. the market price and the minimum price a seller is willing to accept. the
asked by joshkuss 
physics
A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant.
asked by Mariah 
math!
A rectangular box is twice as long as it is wide. The height of the box is 3 feet less than the width. If the box is x feet wide, what polynomial represents its volume in cubic feet? A. 4X3 B. 2X(cubed)+6x(squared) C.2X(squared)6X D.
asked by LovelyCaity 
physics
A 20 kg object is acted on by a conservative force given by F = 3.0 x  5.0 x 2, with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. (a) What is the potential energy of the system
asked by Frank 
physics
Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time
asked by Haley 
Physics
A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant.
asked by Hayley 
economics
Producer surplus is shown graphically as the area: under the demand curve and above the market price. under the demand curve and below the market price. above the supply curve and below the market price. above the supply curve and below the market price.
asked by joshkuss 
Physics
A 1300kg car going 20m/s has to stop suddenly. The driver locks the brakes, and the car skids to a halt in a distance of 64m . What was the car's acceleration while stopping? How much work was done by friction to stop the car? What is the coefficient of
asked by Anonymous 
maths
99. From a box containing 5 black marbles,8 pink marbles, 6 white marbles, and 5 yellow marbles, Kim removed 4 marbles,one of which was black.If she removes one more marble at random,what is the probability that it will be black? a. 1/6 b. 4/21 c. 1/5 d.
asked by thomas 
rela
in the lottery the reader first learn about the characters, setting, and plot. the second part mostly depends on dialogue, how does this change affect the pacing and mood of this part of the story.
asked by anonymous 
Statistics
During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision
asked by Vanessa 
Maths
A rectangular photo measures 18cm by 7cm. The lengths are enlarged in the ratio 2:3. What is the ratio of the original photo to the area of the enlarged photo?
asked by Bam 
Social Studies
The ideas of montesquieu, a French writer, influenced the fouding fathers to create a government where no person or part has too much power. Why did this idea appeal to the Founding Fathers? a) They had experience the rule of a tyrant. b) They liked the
asked by Sarah 
math physics
The handle of a vegetable wagon makes an angle of 25.0° If the peddler exerts a force of 35.0 lb along the handle, how muchwork does the peddler do in pulling the cart 1.00 mi? Is this correct? 35.0*1.00coseine25.0degrees=31.720
asked by ben green 
Math
Write and integer for each situation: Is this right A) A profit of $15 $15 B) A withdrawal of $9 $9
asked by Gio 
science
1. True or False: If the net force of an object is 0 N, the forces are considered unbalanced. (True) 2. Which of the following forces causes a feather to fall slower than a blowing ball? gravity ← rolling friction sliding friction air resistance 3. A
asked by Hannah Marie 
chemistry
How many hydrogen atoms are in 0.0542 mol of H2SO4? Answer in units of atoms H
asked by Anonymous 
math
three pigs entered a race around a track. Piggly takes 6 minutes to run one lap, piglet takes 3 minutes while wiggly takes 5 minutes. If all three pigs begin the race at 1:00pm at what time will all be at the starting point again?
asked by smart 
physics
The pulley system in Figure 625 is used to lift a crate of mass m = 41 kg. Note that a chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are
asked by Anonymous 
Algebra
Graph the system below and write its solution. =+3xy−6 =y−−12x1
asked by Anonymous 
Chem 2
calculate the vapor pressure of a solution made by dissolving 61.7g (molar mass= 60.06g/mol) of Urea in 212ml of water at 35C. what is the vapor pressure lowering? the vapor pressure of water at 35c =31.82 mmHg
asked by PleaseHelp 
statistics
I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes
asked by ANGELA 
Math
Which is greater? 7.08*10^15 or 7.65*10^14 or 7.65*10^4 A. 7.08*10^15 B. 7.65*10^14 C. They are equal D. 7.65*10^4 D?
asked by Anonymous 
Physics
An apple falls from a tree and hits the ground 8.83 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s
asked by Jack 
Chemistry
If 14.23 mL of 0.203 M NaOH is required to neutralize .269 g of a monoprotic unknown acid, what is the molecular weight of the unknown acid?
asked by Tiffany 
Physics
A block is released from rest at the top of an inclined plane. The height of the plane is 5.00 m and it makes an angle of 30.0 degrees with the horizontal . The coefficient of kinetic friction between block and surface is 0.200. What is the speed of the
asked by Fernando 
chemistry
An aqueous solution of nitric acid is standardized by titration with a 0.121 M solution of calcium hydroxide. If 24.5 mL of base are required to neutralize 15.4 mL of the acid, what is the molarity of the nitric acid solution?
asked by arch 
Algebra
Jim is starting a new diet. When he arrived home, he ate 1/3 of the half of a pizza that was left from the previous night. The whole pizza contains approximately 2,000 calories. How many calories did Jim consume?
asked by KG 
Social Studies
The idea of "natural rights" means that a) Government has a right to rule because the citizens consent. b) Government authority is more important than citizens' rights. c) People are born with rights that cannot be taken away. **** d) People have the right
asked by Sarah 
Social Studies
"To no one will we sell, to no one will refuse or delay, right or justice." This quote from the Magna Carta have influenced the colonists to believe that a) no person who was a criminal has the rights to earn money or purchase from others. b) Each person
asked by Help please?! 
any
Does jiskha erase comments and answers?
asked by Aluminum<3 Helping & C.S.I ♪♫ 
Divisors?
What is the largest remainder possible if the divisor is 10? I am helping my child and do not know how to do this Please show me how to and how to explain it.. Thank u
asked by Christine 
physics
a man fires a rock of a sling shot upwards. the rock has initial velocity of 15m/s. How long will it take for the rock to reach its highest point??
asked by lenex purre 
physics
a car accelerates uniformly from rest to 29 m/s in 12s along a level of road. ignoring friction, determine the average power (hp) required to accelerate the car if the weight of the car is 1.2 x 10^4 N. I need help setting up
asked by Anonymous 
mathphysics
How much work is done lifting a wrecking ball 6.50 m above the ground? So the formula for this problem would be: W=fs F=200kg S=6.50m (200)(6.50)=1300
asked by ben green 
1st grade
Which of the following is a compound word? A. Together B. Sometime C. Yesterday D. None of the above
asked by anonymous 
Networks
Consider the "Preferential Attachment Model" described in lecture 3.3, with m=10. At date t=40, what are: (1) the expected degree for node 15 (born at time i=15), and (2) the expected degree for node 30 (born at time i=30)? [Hint: Use the approximation for
asked by qwerty 
Microeconomics
Mary's utility function is U(b,c)= b+ 100c  c^2. b takes up 1 sq ft and c takes up 4 sq ft. a) if Mary has only 144 sq ft, how much of c would she grow? b) if mary grows both b and c, how large must her garden be in sq ft?
asked by Aileen 
physics
22) A golf ball moving forward with 1 unit of momentum strikes and bounces backward off a heavy bowling ball that is initially at rest and free to move. The bowling ball is set in motion with a momentum of A) less than 1 unit. B) more than 1 unit. C) 1
asked by mathew 
math
betsy is making a flag. she can choose three colors from red ,white. blue and yellow .how many choices does betsy have?
asked by naila 
Algorithms
Arrange the following functions in increasing order of growth rate (with g(n) following f(n) in your list if and only if f(n)=O(g(n))). a)2^2^n b)2^n^2 c)n^2 * log(n) d)n e)n^2^n
asked by qwerty 
Math
Which of the following is less than 6.5*10^5? A. 1.4*10^.3 B. 2.5*10^4 C. 7.8*10^5 D. 4.6*10^6 Is the answer A?
asked by Anonymous 
Calculus
Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per
asked by Erin 
Physics
In the system shown in the figure, suppose the block has a mass of 2.7kg , the spring has a force constant of 500N/m , and the coefficient of kinetic friction between the block and the floor is 0.18. Find the work done on the block by the spring and by
asked by Hannah 
8th grade reading
I was wondering if there was a word like "incident" but with less of a negative connotation.
asked by Joe :) 
Algebra
Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade
asked by Anonymous 
Math help Please
Kevin has a triangle table cloth with side lengths of 5 inches, 12 inches. He wants to cover a right angles triangle table with table cloth. Find if the cloth is appropriate for the table. Can someone please help me. We are doing Pythagorean Theorem  I
asked by Cassie 
Math
If I plan to average 80 kilometers per hour and stop 45 minutes for lunch how long will it take me to make a 220 kilometer trip?
asked by Joe 
computer science programming
Elements – sequenceseries outputting Write a program that prints the following elements: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, (hereto referred to as elements) etc., up till a userentered value. The program should not print more than 10 numbers per line.
asked by OLEBOGENG HERRY 
Networks
Consider the model of "Growing Random Networks" described in lecture 3.1 (so the first model where links are added to existing nodes uniformly at random), with m=10. At date t=40, what are: (1) the expected degree for node 15 born at i=15, and (2) the
asked by qwerty 
Networks
Consider the "Hybrid Model" described in lecture 3.4, with m=10. Let us compare the cases of a=0.8 and a=0.2. At date t=10,000, consider a node born at date i=20 and a node born at date i=9999. Recall that the approximation of the expected degree at time t
asked by qwerty 
Math
How do you estimate using rounding or compatible numbers like 0.97x312?
asked by Sofia 
maths
95. Suppose that 387 people will travel on a space shuttle with room for 420 people.Each compartment seats 14 people before the next compartment opens.How many people will ride in the last compartment that opened?
asked by thomas 
Math
On an airplane,there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. a. How many seats are on the left side of the plane? b. How many seats are there altogether?
asked by Maria 
Math! Please check!
When constructing the circumcenter and circumscribed circle of a triangle, you need to find the intersection of all three of which type of line? A medians B perpendicular bisectors C altitudes D angle bisectors My choice is B.
asked by Skye 
physics
A car drives at 15 m/s and has an air resistance force of 244 N. What is the air resistance force at 30 m/s?
asked by Anonymous 
chemistry
A solution is prepared by mixing 4.62 grams of potassium hydroxide in 1.00 L of water. After that, 250.0 mL of a 0.100 M solution of HCl is added to the solution. What is the resulting pH of the final mixture?
asked by Acrinogy 
physics
The resistance of a coil copper wire at 20 degree celsius is 2.21 ohms. After a current of 10 amperes has been flowing in wire for two hours, the resistance of the coil was found o be 2.59 ohms. What is the temperature rise?
asked by jun 
Math
find three consecutive positive odd integers such that the sum of the squares of the first and second integers is equal to the square of the third integer minus 7?
asked by Jennifer 
physics
Two people jump out of an airplane. They hold on to each other while falling straight down at a shared terminal speed of 60.7 m/s. Suddenly, they push away from each other. Immediately after separation, the first skydiver (who has a mass of 89.3 kg) has
asked by Johnny 
physics
a particle is moving in a straight line the particle starts with speed 5ms and accelerates at a constant rate of 2ms for 8s it then decelerates at a constant rate coming to rest in a further 12s find the total distance during 20s it is 230 but i don't
asked by Sam 
economics
I need to address computer ability to grow the Gross domestic product ,create competition and make other industries efficient help me?
asked by alex 
Algebra
Graph the system below and write its solution. =3x+y−6 =y−1/2x1
asked by Anonymous 
Algebra
PLease ,Please ,Please help me solve this problems #1 Since x = 3y4, 3(3y4)+4y = 3 now just solve for y and then x #2 Since x = 4+4y, (4+4y) = 4y=4 or something Again, solve for y, then x
asked by Anonymous 
math
Explain Sean biked 43 miles on Monday, 23 miles on Tuesday, and 62 miles on Wednesday. How many more miles did he bike on Wednesday than on Monday? Draw a picture and write an equation to solve. Then solve
asked by Emma 
Math: Differential Equations
Solve the initial value problem y' = y^2, y(0) = 1 and determine the interval where the solution exists. I understand how the final solution comes to y = 1/(1x), but do not understand how the solution is defined from (infinity, 1) and not (1, infinity).
asked by Anonymous 
Math Help 911
Which of the following is greater than 4.3•10^9. A.2.1•10^9 B.3.2•10^9 C.5.3•10^9 D.7.4•10^8 Is the answer C?
asked by peach 
Algebra
Veronica's cell phone plan costs $35 dollars per month plus $0.05 per minute used. Veronica's bill last month was $40.75. How many minutes did she use? 40.75 divided by .05 ?
asked by Please help 
Social Studies
"No free man shall be seized [arrested] or imprisoned, or stipped of his rights or possessions ... except by the lawful judgment of his peers." This quote from the Magna Catta shows the ideals that set up which branch of the goverment? a) Executive b)
asked by Help please?!? 
math
145% of 320 what does this =
asked by J 
chem
How much bromobenzene (C6H5Br) can we make from 6.58 g of benzene (C6H6) and 3.81 g of bromine according to the equation below?
asked by Anonymous 
Statistics
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,325 per hour and a standard deviation of $240. What is the operating cost for the lowest 5 percent of the airplanes?
asked by Dany 
Music
Try to find examples of three pieces of music that use three different types of texture....Thank You for help...
asked by Kinga 
algebra 2
Find the GCF and LCM of the following monomials. 1.)28,35,42 2.)9x^2y and 36xy^3
asked by Janet 
physics
A grenade thrown straight up in the air has an initial speed of 27 m/s. How long will it take before it returns to the thrower's hand?
asked by Diane 
physics
Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds
asked by anthony 
physics
Forces of 4.57 N and 4.74 N act at right angles on a reddishgreen block of mass 5.76 kg. How much acceleration occurs?
asked by anthony 
ALGEBRA 2
Solve the compound inequality.
asked by Anonymous 
Algebra
Solve the compound inequality.
asked by Anonymous 
Algebra
Solve the compound inequality. >−2x3−11 or ≥+3x36 Write the solution in interval notation. If there is no solution, enter ∅ .
asked by Anonymous 
statistics
if you lose 10% a year, how much will be left of 2.44 million in 26 years?
asked by Josh 
ENGLISH CLASS
Motivation is poor. complete sentence fragment runon
asked by MICHELLE 
math
determine known length for a triangle one side is 2.5cm other side 1.6cm find how solve the third side
asked by anita 
Math
What is the slope of the line whose equation is –48 = 2x − 8y? This is supposed to be answered in a fraction.. I'm stuck
asked by Anonymous 
math
What is the surface area of a sphere that has a radius of 5 cm? Use 3.14 for . Round to the nearest tenth.
asked by Anonymous 
Social Studies
Four statements by Enlightenment writers: 1. To secure these rights, Governemts are instituted among Men, deriving their just powers form the consent of the governed. 2. When a Monarchy is once bitten it the quick, by those Democratical writers...It wants
asked by Help please?!? 
Math
What is 2,724 x 588? Round each term to the greatest place.
asked by Zero 
Physics Help Please!!!!
A car is at rest on a horizontal road. What is the value of the frictional force? Explain your answer. A bison stands at rest on the horizontal ground. What is the value of the frictional force? Explain. The normal force always has a direction
asked by Tom 
physics,electrostatics
A 40uf parallel plate capacitor is charged to 12v. The capacitor is removed from the battery and the separation distance increased from 2mm to 3mm. What is the total charge on the capacitor? How much energy was stored in the capacitor when the distance was
asked by david 
Algebra
Solve the compound inequality. >−2x3−11 or ≥+3x36 Write the solution in interval notation. If there is no solution, enter ∅ .
asked by Anonymous 
Math
A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost$18. Find the cost of 1 box of chalk and 1 stapler.
asked by Anonymous 
History
Explain the six features of Ancient Egypt
asked by Emma 
math
On a treadmill, Andrea walks a distance of 2 km. She then doubles the speed of the treadmill and jogs for another 2 km. If the total time she spent on the treadmill is 1 hour, find the speeds at which she walks and jogs.
asked by kaye 
physics
a rock is thrown at a downwards angle of 15 degrees from the top of a 120 m cliff with a speed of 25 m/s. what will be its speed when it strokes the ground at the base of the cliff? I know to use the conservation of energy but I don't know how to set it
asked by Anonymous 
geometry
if two lines are parallel, do they determine a plane? (is there one, and only one plane which contains the lines)
asked by kahn 
Math
With 20 pirates and 1000 pieces of gold: Captain Jack gets 113 gold coins (151 if you count the 38 everyone in the crew gets) First Mate gets 66 gold coins (104 if you count the 38 coins everyone in the crew gets) The Crew gets 38 gold coins each The PBA
asked by Anonymous 
chemistry
Can you make a 2 carbon molecule of Ketone?
asked by Tina 
Math
With 20 pirates and 1000 pieces of gold: Captain Jack gets 113 gold coins (151 if you count the 38 everyone in the crew gets) First Mate gets 66 gold coins (104 if you count the 38 coins everyone in the crew gets) The Crew gets 38 gold coins each The PBA
asked by Need Help 
Social studies
Ms.sue you know the question I wrote yesterday could give me the starting point of that story pleas
asked by Sabrina 
Social studies
Write a one page story a about an explorer (can be you) Include: where you would explore ( Fiji land) Transportation to get there, food, clothing tools,weapons. All Fromm 1400s or 1500s Does not need current times
asked by Sabrina 
Biology
I need help with the life cycle of an ostrich! And what could go wrong with the development. I don't understand if it's bacterial or viral infections that may occur...
asked by Walter 
Economics
explain why positive and negative externalities are market failures
asked by Rachel 
Physics
I'm having some trouble figuring out how to do the following question: A ball punted vertically has a hang time of 3.65 seconds. What was its initial velocity? (I use an acceleration of 10 m/s/s) Thanks!
asked by Ashley 
SS
What are some similarities between Canadian and American culture and economy?
asked by Anonymous 
physicsintro
How much work is done in lifting 450 lb of cement 75 ft above the ground? So basically its W=fs (450lb)(75ft)=33750lb
asked by ben green 
idk
what grade level is physics??
asked by Aluminum<3 Helping & C.S.I ♪♫ 
Math
write these pairs with common denominators 5/8 and 1/2 ?
asked by Sabrina 
Chemistry
How many liters of liquid nitrogen are produced when 360.0 L of nitrogen gas is liquified at 77.36 kl
asked by Andrea 
Math
What is twice the sum of 124 and 96? Is this right 124+96=220 220+220=440 answer is 440
asked by Gio 
english
essay about helpfulness?
asked by Anonymous 
Math
(5.63+.918)  (.83+.9) = 6.548  .173 = 6.375
asked by Joe 
Physics
There are 2 objects connected with ideal, massless string that is hanging over an ideal (massless and frictionless) pulley. The angled surface is at a 25.0 degree angle. All surfaces are firctionless. A force F1 is applied horizontally as shown to the
asked by Lucas 
Physics
The battleship Massachusetts' 16" guns could fire a 1ton shell with an initial velocity of 800m/s. If it fired its guns at an angle of 45 degrees above horizontal, how high and how far would the shells travel? I'm pretty sure that I need to use the
asked by Devynn Austin 
Algebra
How would you write the number 11.836 as mixed number, and how would you write it as a decimal. Please help answer thanks
asked by Ms. Liz 
English
1. i want to marry Mrs aouda tomorrow, the 23rd December. 2. i want to marry Mrs Aouda tomorrow, 23rd December. 3. i want to marry Mrs Aouda tomorrow, December 23rd. 4. i want to marry Mrs Aouda tomorrow, December the 23rd. 5. i want to marry Mrs Aouda
asked by rfvv 
Chemistry
What are the parts of a calorimeter used in chemistry?
asked by Anonymous 
Math
How do rate tables help me find equivalent ratios
asked by Joe 
english
in the sentence The old teeth of a shark are replaced by new teeth as often as every one to two weeks. would shark be both a common noun and a concrete noun?
asked by kelley 
physics
A particle of mass 10 kg is slowly lifted up to a height of 10 metre then calculate the workdone by external and gravity force ?
asked by shubham 
Math (please check)
Compute the indicated derivative. d/dt [ ( t^2 + t^0.5 ) ( t^0.5  t^0.5 ) ] t=1 I took the f and g prime then I used the quotient rule my final answer came out to 3t^1.5  1.5t^0.5 + t + 0.5t^1 then I plugged 1 in for t and got 5.196 Please let me know
asked by Jennifer 
physics
An earthquake wave has a wave length of 523m and travels with a speed of 4.6km through a portiin of Earths crust. a) what is its frequency? b) if it travels into a different portion of Earths crust, where its speed is 7.5km/s,what is its new wavelength?
asked by lenex purre 
Math
What's 1,601,712 and 3,139 rounded to the greatest term?
asked by Sarah 
Chemistry
What is the pH of a solution containing both 0.954 M formic acid (HCO2H, Ka = 1.8x104) and 1.260 M phenol (HC6H5O, Ka = 1.6x1010)?
asked by Acrinogy 
College question
I'm a high school senior and I'm planning on applying to SBU. I have a 4.0 gpa, a 1690 on the SAT(am going to retake), a 24 on the ACT, took 3 AP classes and am currently taking 2 more, part of National Honor Society, in the top 5% of my school, have an
asked by Jess 
Math
I need an expiation on a math concept, because I know the right answer, I just don't know why it is The problem says to find the absolute maximum and minimum of the function f(x)=x^312x over the interval [5, 2] I found the 1st der. 3x^212 and set equal
asked by Eiban 
English 9
Misplaced and dangling modifiers Having won more than $200,000 during her career, her performances include victories in over 20 tournaments. I think it would be better... During her career, her performances include victories in over 20 tournaments winning
asked by Sweet Pea 
Physics
A young girl (m= 30 kg) rides a skateboard (m= 3.2 kg) at a speed of 4.2 m/s. (a) How much work does the girl have to do to bring herself to a stop? (b) How far does she travel if it takes 6.0 s to stop? (c) What is the magnitude of the stopping force? So
asked by Marin 
Science Physics
A young girl (m= 30 kg) rides a skateboard (m= 3.2 kg) at a speed of 4.2 m/s. (a) How much work does the girl have to do to bring herself to a stop? (b) How far does she travel if it takes 6.0 s to stop? (c) What is the magnitude of the stopping force? So
asked by Marin 
Algebra 2
3x+4y=3 x=3y4 X4y=4 x=4y=4
asked by Gena 
Physics
A grenade is thrown up into the air with an initial velocity of 27 m/s. How long does it take to return to the thrower's hand? I got 5.4 s, but I am very unsure.
asked by Diane 
Biology
What are some examples of homeostasis in onecelled organisms?
asked by Anonymous 
Math check
Subtract 28  (33)= 61
asked by Nina 
Algebra 2
Please help me!!!! The Cooper family and the Anderson family each used their sprinklers last summer. The water output rate for the Cooper family's sprinkler was 20L per hour. The water output rate for the Anderson family's sprinkler was 25L per hour. The
asked by Lady G 
Social Studies
What are some lifestyles for the following countries: Kazakhstan Kyrgyzstan Latvia Liechtenstein
asked by Alan 
math
Find the equation of the tangent line to the graph of f(x) = (4x − 8)/(x + 1) at x = 0. (Use y for your dependent variable.)
asked by Michael 
Math
How to make an equation out of 0,5 and 3,4 on a coordinate plane
asked by Coleson 
3rd grade math
What strategy do you use if you draw an array of 5 columns with 7 rows 4 rows are shaded. The other 3 rows are not shaded.How do you find the answer to 35 ÷ 5?
asked by Charlene 
physics
2 masses m and 4m are placed at 12meter distance. where a mass of 10 kg can be placed between them so that the net gravitation force on it become zero.
asked by latika 
physics
2 masses m and 4m are placed at 12meter distance. where a mass of 10 kg can be placed between them so that the net gravitation force on it become zero.
asked by latika 
Math
How to make an equation out of 3,3 and 0,1 on a coordinate plane
asked by Coleson 
english
what does it mean when the question is asking you ¨what was something that ¨stuck with you¨ during the reading of this article? explain." thanks
asked by Lola 
English
Are the authors stance and opinion similar ? Can you give me an example of each?
asked by Lee 
Pharmacy Tech
15gr of potassium chloride is diluted in 2 L of sterile water for injection. What is the final percent strength?
asked by Teresa 
English
1. He looks in his diary and sees the wrong data. (Do we have to use the preposition 'in'? How about 'looks at'?) 2. Fix uses a warrant to arrest Fogg. 3. Fix uses a document to arrest Fogg. (Is 'a warrant' a document? Can we substitute 'a paper' for 'a
asked by rfvv 
English
What is your stance on BASE jumping
asked by Lee 
algebra
how do u solve x^3+2x^26x6=(x2)(x+3)(x+k)
asked by Anonymous 
Abnormal Psychology
Obesity __________ is strongly related to obesity in __________.
asked by Anonymous 
math
Mr. Winsett and Ms. Phelps are having a back to school party. Mr. winsett brought 48 hot wings and mrs. phelps brought 18 cans of soda. what is the greatest amount of people that can come and share the food equally with no left overs?
asked by Anonymous 
English
In this sentence, is there an error in one of the lines or is there no error The hikers caught sight of deers running through the forest no error
asked by kelley 
coolkid1234567890
Purple Blue elementary school is 187 miles from washington dc. According to google maps it should take about 3 hours and 5miutes to get there. What is our speed. Please tell me how you did it and the answer. Thank you
asked by alexander 
math
if two lines are parallel, do they determine a plane? (is there one, and only one plane which contains the lines)
asked by easy question 
Physics
I'm having a bit of trouble with this problem. A ball is thrown upwards and stays in the air for 3.65 seconds. What is the initial velocity? (I use an acceleration of 10 m/s/s) I got an answer of 18.25 m/s/s but I'm not sure that it's correct. I would
asked by Ashley 
SS
Does urbanization happen more in Canada or the US? The US, I think...
asked by Anonymous 
@someone who can show me how to do this
Hi I'm Aluminum
asked by Aluminum<3 Helping and C.S.I 
math
2/5(x+3)=6 2/5x+6/5=6 5/2(2/5x) +6/5 = 6(5/2) X+6/5=15 X6/5=156/5 X=
asked by john 
Algebra 2
Please, PLease help me with this problem D={zz74} e={zz
asked by Lady "G" 
english 122
when you contribute to a research conversation, which of the following skills is not strictly?
asked by thomas 
Algebra 2
The sets D and E are defined as follows. =D>zz4 D={zz74} E={zz
asked by Anonymous 
Math
KILOWATTHOURS OF ELECTRICITY USED MONTH KWH USED/ MONTH DWH USED JAN 2,640 JUL 960 FEB 2,190 AUG 1,380 MAR 1,500 SEP 1,110 APR 1,620 OCT 840 MAY 1,440 NOV 1,260 JUN 1,080 DEC 1,820 A. Describe how to find the range of the data set. B. Find the range.
asked by Denise 
theater/play
i need a bullying script play that would last 510 minutes or a play, with john doe as the song but i don't know what theme that's it goes with, also i need to do the script i tried doing one about bullying but i didn't like it, any suggestions?? also
asked by anonymous 
Math
Which of the following is greater than 4.3*10^9 A. 2.1*10^9 B. 3.2*10^9 C. 5.3*10^9 D. 7.4*10^8 Is the answer C? Thank you
asked by Anonymous 
Math
2/3+3/4+7/8
asked by Coleson 
math
Joe starts a gym. In the first year, 300 people join. If the membership grows at an annual rate of 4%, how many members will there be after 5 years?
asked by ana 
math
Have the following set of eight blocks: 1 2 3 4 5 7 8 9. Arrange the blocks into two groups of four such that each group has the same total?
asked by Sarah 
Math! Please check!
Okay, so I have a question but it requires a picture and I am not sure how to add it. h t t p : / / t a k e e x a m . n e x t . e c o l l e g e . c o m / e c / c o u r s e s /4 6 1 2 2 / C R S  M T H 2 0 3 A 3 9 5 0 2 5 8 / G M T _ Q 1 1 _ 2 . b m p
asked by Skye 
English 9
I have to rewrite sent. to fix misplaced and dangling phrases. 1. To become an outstanding allaround player like Lambert, many hours of training are required. My revised sent is... Many hours of training are required to become an outstanding allaround
asked by Sweet Pea 
Math
The diagonal of a rectangle is 26 inches long. Its length is 14 inches more than the height. What is the height of the rectangle?
asked by BJ 
Algebra 2
Hello any one out there can you please help me out with this problem and Thank you in advance. !.x+y=34 xy=20 2.7x+6y=11 5x+9y11
asked by Gena 
1st grade
This is for my cousin Kara planted seeds in her garden.that summer, many tomatoes grew. cause: Effect:
asked by emma 
History
Was there a civil war in Canada?
asked by Anonymous 
math
whats the midpoint of 25006500?
asked by Anonymous 
English Comp
Just want some advice on if i am doing this correctly. Thanks in advance. Combine each sentences using a semicolon. First is the original and the (#A) is my answer. 1. Abalone fishing in California is strictly regulated. A person is allowed to harvest only
asked by Thirdcoast09