Thursday
December 18, 2014

Posts by ashley


Total # Posts: 2,862

calculus
Find the volume of the solid whose base of a solid is the region bounded bythegraphsofy=3x,y=6,andx=0. Thecross␣sections perpendicular to the x ␣ axis are rectangles of perimeter 20.
December 16, 2010

calculus
Find the volume of the solid whose base of a solid is the region bounded bythegraphsofy=3x,y=6,andx=0. Thecross␣sections perpendicular to the x ␣ axis are rectangles of perimeter 20.
December 16, 2010

Chemistry (URGENT)
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: CO2 , 249mmHg ; , Ar 114mmHg ; and , O2 174mmHg . The mixture also contains helium gas. 1. What is the partial pressure of the helium gas? 2. What mass of helium...
December 15, 2010

Chemistry
Green Light has a frequency of about 6.00 * 10^14 s^-1. What is the energy of the green light?
December 15, 2010

geometry
What is the distance from the origin to the point (14,11)?
December 15, 2010

Toms River
If you have 23 kids in a class how many of them are 5ft 2ins or taller? And how many are shorter?
December 15, 2010

Geometry
A train travels uphill at a 12 degree angle. The train rises 150 from the bottom to the top of the hilL. about how long is the track?
December 14, 2010

Substitution method
x=2y y=2x+3 ??
December 14, 2010

chemistry
a 52.0 gram sample or water increases in temperature due to the addition of a hot metal from 17.7 degrees C to 24.4 degrees C. How many calories has the water absorbed? how many calories did the metal lose?
December 13, 2010

6th grade
analogie:After is to before as epilogue is to
December 12, 2010

bio 101
how the organism in the diagram has evolved physiologically to become suited to its environmen
December 11, 2010

college
The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of the pole and on a line through the base of the pole and point A, the angle of elevation to the top of the pole is 37.0 degrees. Find the height ( to ...
December 11, 2010

college
Solve 9 tan x +5 =0, where 0 <= x <= 360
December 10, 2010

Math
10+4=14 20-1=19 19*14=266
December 9, 2010

Physics
What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 60 m/s and a second 1500 kg car moving west at 95 m/s? Let east be the positive direction. Answer in units of kg · m/s.
December 9, 2010

MATH
HOW DO YOU DO INPUT & OUTPUT DIVISION Tables
December 9, 2010

Finance
A company requires the amount of $1,000,000 in 25 years to retire a bond issue. Assume they can earn 5 3/4% interest compounded daily. What amount would they have to pay quarterly to be able to retire this debt in 25 years?
December 9, 2010

physics
suppose that a horizontal force of 0.7 n is required to pull a 5.0 kg block across the table at constant speed. what is the initial speed of a 20 g bullet, fired horizontally into the block, if the bullet imbeds in the initially stationary block and causes the block to slide 1...
December 7, 2010

math
15
December 6, 2010

College Chemistry
Given 400.0 g of hot tea at 80.0C, what mass of ice at 0C must bea added to obtain iced tea at 10.0C? The specific heat of water is 4.18 J/(g*C), The specific heat of water is 4.184 kJ/mol.
December 6, 2010

Chemistry
At the melting point of benzene, the DH of fusion is 9.95 kJ/mol and the DS of fusion is 35.7 J/K.mol. What is the temperature at which benzene melts?
December 6, 2010

PHYSICS: Waves in Media
An organ pipe is open at one end and has a length of 3 m. What is its fundamental frequency if the speed of sound is 336 m/s?
December 6, 2010

10th grade
a 5.0 kg bowling ball is rolling down the lane at 4.0 m/s. what is the kinetic energy of the bowling ball?
December 6, 2010

college
An essay on- To what extent was president andrew jackson one of the nation'smost effective president?
December 4, 2010

Chemistry
Caluclate the delta H for this reaction using standard enthalpies of formation. (The standard enthalpy of formation of liquid pentane is -146.8kJ/mol. Balanced equation balanced equation: C5H12(l)+8O2(g)-->5CO2+6H2O(g) CO2=393.5 H2O=40.7
December 4, 2010

physics
At 10:15 am snail 1 crossed the 65 cm mark with a velocity of 4cm/min. In a great burst of energy, Snail 1 raced to the 90 cm mark in 3 minutes. His velocity as he crossed the 90 cm mark was 7cm/min. What was the acceleration of Snail 1?
December 4, 2010

Chemistry
A large sport utility vehicle has a mass of 2500kg. Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUVfrom 0.0mph to 66.0 mph. Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE= 1/2mv^2 to ...
December 3, 2010

Biology
Please help !!!! two bacteria, "Claire" and "Bob" are infected with a virus. Claire explodes several hours later and Bob lives happily ever after.... until one day when Bob feels stressed out and all the sudden, explodes as well. What happened to bacteria &...
December 2, 2010

Math
Use the echelon method to solve the following system: x/5+3y=31 2x-y/5=8
December 2, 2010

Math
Write an expression that represents each question What is 2/3 of 3/8? How many 3/8 are in 2/3?
December 1, 2010

Math
True?
December 1, 2010

Math
Is 3/4 between 7/12 and 18/24 on the number line?
December 1, 2010

Science
The pigment melanin in the skin functions to a. Produce new living cells in the epidermis b.help protect the skin fron sunburn c. Keep water within the skin
December 1, 2010

Science
When the body becomes too warm blood vessels in the skin become _____?
December 1, 2010

7th grade
find the next three numbers in the pattern 2/3, 1 5/12, 2 1/6, 2 11/12 _, _, _
December 1, 2010

math
if 720 can be written as the product of five consecutive integers, determine the middle integer.
December 1, 2010

calculus
if the area of a triangle with the base 2F and height F-2 is equal to F, compute F.
December 1, 2010

chemistry
determin the formal charge on each atom in the following molecules and ions. (a)OSCL2 (b)FSO3
December 1, 2010

math
what is the area and perimeter of 1.7*4
November 30, 2010

algebra
find the range of the given domain {-1,0,1} f(x)= 3x^2-2x+2
November 28, 2010

college algebra
g(x)= {x+6, x is less or equal to -4 {1/2x -4, x> -4
November 24, 2010

college algebra
g(x)= {x+6, x is less or equal to -4 {1-2x -4, x> -4
November 24, 2010

Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
November 22, 2010

Math
A goat is tethered to a stake in the ground with a 5 m rope. The goat can graze to the full length of the rope a fulll 360 around the stake. How much area does the goat have in which to graze? What would be the figure?
November 22, 2010

History
Is there any website where I could find the picture of the Empresario Grants Coahuila Y Tejas Map?
November 22, 2010

Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
November 22, 2010

Math
How do you figure it out from there though? Because I got that far and couldnt figure out how to solve for x.
November 22, 2010

Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
November 22, 2010

General Chemistry
Calculate the E of the following cell if [CIO3] = 1.5M, [H]= 0.5M, [CI]=1.0M and [CU2]= O.25M: CI03 + 3CU + 6H = CI- +3Cu2+ +2h20
November 22, 2010

physics
what force is acting on a circular platform rotating opposite of a person standing on the edge?
November 22, 2010

algebra
-3r+18=6r
November 21, 2010

physics
So, for the acceleration I got 1.096e-11 is this right?
November 17, 2010

physics
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 3.30 m. Two of the spheres have a mass of 3.10 kg each. The third sphere (mass unknown) is released from rest. Considering only the gravitational forces that ...
November 17, 2010

Chemistry
A helium baloon has a volume of 28.9L, what is the mass of helium inside the ballon? what is the mass of the same volume of air it displaces? MM of air = 29.0g/mol, 25C (temperature) and 1 atm.
November 17, 2010

Calculus
A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640 - 16t^2 y'= -32t When does the ball hit the ground, and how fast is it going at that time? Give your answer in ...
November 14, 2010

calculus
A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640 - 16t^2 y'= -32t When does the ball hit the ground, and how fast is it going at that time? Give your answer in feet...
November 14, 2010

AP PHYSICS
Work done by friction= forcefriction*distance=mu(fn)*distance where fnormal= mg-2.3E2Sin21 Fd= (.200)(.700X9.8X-2.3E2Xsin21)X(7)= Work done by friction=19790.15328.. thats what I got and it is wrong i believe
November 14, 2010

AP PHYSICS
It did not work thats why I wanted to see if someone else had a better input. It was the wrong answer.
November 14, 2010

AP PHYSICS
A 2.30 102 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 21.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 7.00 m. Find the work done by the kinetic ...
November 14, 2010

algebra
(c+g)(c^2-cg+g^2)
November 13, 2010

Math
What are the horizonatal asymptotes of y=(1000)/(1+9e^(-.1656x))?
November 12, 2010

Math
What are the horizonatal asymptotes of y=(1000)/(1+9e^(-.1656x))?
November 12, 2010

Literature
According to charley's psychiatrist, how can charley's visit to the third level be explained
November 11, 2010

physics
A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised bottle to a needle inserted in the vein . The inside diameter of the 4.8 cm long needle is 0.48 mm, and the required flow rate is 4.9 cm^3 of blood per minute. How high h should the...
November 11, 2010

Physics Help!!!
In one cycle, a heat engine absorbs 5900 J at 360°C and exhausts 520 J. How much work does it do per cycle?
November 11, 2010

math
If a cardboard box measures 1 1/2 feet on each side what expression will represent the volume of the box
November 10, 2010

western experience
Oh thats right!My second thoght was E. feminists
November 9, 2010

western experience
Can someone please check my answers? 1. In the early 1970s the only European nation capable of meeting its own oil production needs was A. Great Britain B. France C. Germany D. the soviet union E. Spain D. The soviet union 2. Which group has seen its imporance in European ...
November 9, 2010

science
1.accerlate 2.Friction
November 9, 2010

history
What did Americanization reveal about white Americans view of Native Americans?
November 9, 2010

Physics
O ok. My teacher told us we had to separate it into 3 separate parts, but i'm not sure how to do that.
November 9, 2010

Physics
A hot air balloon starts at its launching station and it goes at a horizontal speed of 2.7 m/s and a vertical wind of 1.1 m/s. Once it reaches an altitude of 202 m, it stays at that altitude for 10.3 s, which is when it drops a sandbag. How far will the sandbag land from the ...
November 9, 2010

Western Civilization
In the postwr West, philosophers and intellectuals have challenged many of the assumptions abouth truth, objectivity, science, and progress that have dominated the Western outlook since the Enlightenment. Summarize the arguments and approaces of the most important poswar ...
November 9, 2010

Physics
where did you get 4.6*10^6?
November 8, 2010

Physics
A satellite has a mass of 5600 kg and is in a circular orbit 3.70*10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20*10^6 m. What is the true weight of the satellite when it is at rest on the planet's surface?
November 8, 2010

physics
A man who weighs 50.0 N stands 3.00 m from the right end of a board that is supported by two vertical cords attached to either end of the board. The board is 5.00 m long and weighs 10.0 N. What is the tension in each of the two cords?
November 7, 2010

math
Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph. x + 4y = –16 3x + 2y = 12
November 5, 2010

Physics, PLEASE HELP!!
A long jumper jumps with the initial velocity of 12.0 m/s at an angle of 20 degrees. what is the displacement of x?
November 5, 2010

calculus
it doesn't work
November 5, 2010

8th grade
It would be T(n)=20+.75n
November 5, 2010

physical science
Platinum has a density of 23.4g/cm3. What is its mass?
November 5, 2010

history
Many subjects connected with our social economy call for immediate improvement. As examples: We should bring more citizens under the coverage of old-age pensions and unemployment insurance. We should widen the opportunities for adequate medical care. We should plan a better ...
November 5, 2010

chemistry
A stock solution is prepared by adding 26 mL of 1.1 M K3PO4 to enough water to make 30 mL. How many moles of K+ are in 21 mL of the stock solution?
November 4, 2010

Physics-Please help explain
What happens to a rollercoaster's motion in terms of energy when it goes over a second hill that is higher than the first hill.I think it is because the kinetic energy does not have the momentum so when converted into PE, it can't make it over a higher hill. Coorect or...
November 4, 2010

Physics
Suppose I apply a force to an initially motionless object. I push on the edge at an angle of 30 degrees. What is the torque on this object in terms of r and F?
November 4, 2010

logarithmic differentiation
How do you find the logarithmic differentiation of y = x^-cos x ?
November 4, 2010

Social Studies
Each European group that set up colonies settled in the specific part of the Americas. What are the two facts that lead to that generalization?
November 2, 2010

Social Studies
Describe the geographical features of your community or region. How might they have influenced people to settle there?
November 2, 2010

physics
A fountain reaches a height of 140 m. The pumps provide 0.50 m^3/s of water. What is the radius of the jet at the bottom of the fountain? Hint: find the velocity first, then use continuity.
October 31, 2010

physics:energy
A car (mass 920 kg) drives up a hill (height 328 m) in 143 seconds. At the bottom of the hill, it has a speed of 24 m/s, but at the top, it has slowed down to 14 m/s. Neglecting friction, what is the average engine power? I tried using 1/2mv^2 and it didn't work.
October 31, 2010

Physics
I think we might be in the same physics class. For this question I put -12 and was incorrect...what did you put so we can get the answer choices down to two options?
October 30, 2010

4th grade
PLEASE HELP ME MY HOMEWOrk rK HAVE TO TURENED IT IN TOMMOROW!!!!!!!!!!!!!!!!!!!!!!!!!AAHHHHHHHHHHHHH GOING CRAZY
October 27, 2010

trig
Rewrite the expression in terms of the first power of the cosine. Use a graphing utility to graph both expressions to verify that both forms are the same. 5 sin6(x)
October 25, 2010

Math
Using only the numbers 1-8 without repeating any of them, what is _+_=_-_=_-_=_-_=_? And the last number has to be the same as the first cause it's in a circle don't forget!!
October 25, 2010

Senator
Can you help me write a speech to become the high school senator? i need to get a good one that really hooks the kids.
October 25, 2010

English
you spelled arrived wrong.
October 24, 2010

English
What patriotism means to me? any good ideas on what to say?
October 24, 2010

Physics
A 9.5 kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 90 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the circle...
October 24, 2010

Physics
A 9.5 kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 90 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the ...
October 24, 2010

science
Give the condensed structural formula for 1-butanol. (Type your answer using the format CO2 for CO2.)
October 23, 2010

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