Sunday
November 23, 2014

Posts by jason


Total # Posts: 1,116

Physics
A round body of mass M, radius R, and moment of inertia I= BMR^2 is rolling without slipping. Its kinetic energy can be decomposed into the energy of its center of mass motion (translation) and the enrgy of rotation about its center of mass. The fractions of the body's ...
May 10, 2011

Algebra
i dont know how to slove the/A system by using substitution 3x+4Y=9 y=x-3
May 10, 2011

Geometry
You have a small graduated cylinder with maximum capacity of 250ml. All measuring marks have been worn off except the 50ml, the 150ml, and the 250ml marks. You have a second larger container(size not specified)that is unmarked. It is possible to put 125ml into the large ...
May 9, 2011

Physic
Just an instant before reaching the very bottom of a semicircular section of a roller coaster ride, the automatic emergency brake inadvertently goes on. Assume the car has a total mass of 850 kg, the radius of that section of the track is 53.0 m, and the car entered the bottom...
May 8, 2011

Algebra
Peter painted 1/3 of a room while Joe painted 2/5 of the same room. It then took Peter 1 hour, 40 minutes to finish painting the remainder of the room by himself. In how many hours could Peter have painted the entire room by himself? Express answer as a mixed number.
May 6, 2011

math
Write 7 3/5 as an improper fraction
May 5, 2011

science
Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?
May 3, 2011

science (Genetics and Evolution)
What contains DNA? Where is DNA found? What is the difference between phenotype and genotype?
May 3, 2011

Calculus
To answer the question you would be looking at the point in the interval 0 < x < 10 which the area's totaled up is greatest. The point at which the area is greatest is the interval in which the area is 20, if you span it all the way towards x=10, you'd have (20-6...
May 2, 2011

Computers
How does a search engine work? List the four main parts of an e-mail header.
May 2, 2011

Algebra
1. 12 + 8a + 4a^2 2. Factorise -5x^2 + 27x - 10 Please show me full working out. Thank you!
May 1, 2011

Math
What is the number of units in the distance from the origin to the point (-8,6) in a coordinate system?
May 1, 2011

10th Grade Algebra
Please help me with these factorise algebra questions!!! 1. 9c squared + 30c + 25 - 4d squared 2. 12 + 89 - 4a squared 3. -5x squared + 27x - 10 4. If A= 15x squared - 20x +11 and B= 1 + 9x+ 5x squared, then A-B when factorised is...
May 1, 2011

social studies
want to find some essays or articlrs pertaining to the problems that developed due to the weakness of the Article of the Confederation
April 25, 2011

algebra 2
720000 sq meters
April 12, 2011

physics
how much work is done by an engine using 105 watts of power in 3.2 seconds?
April 12, 2011

physics
what is the wavelength of radar waves with the frequency of 6.0*10^10Hz? a. 0.0010m b.0.010m c.0.050m d.0.0050m
April 12, 2011

physics
i think its a
April 12, 2011

physics
why does the earth have a magnetic declination? a. the earth's axis of rotation is not constant b. the magnetic field of the earth is unknown c. its magnetic poles shift over time and are not aligned to its geographical poles. d. the north and south poles are improperly ...
April 12, 2011

physics
i think its d
April 12, 2011

physics
electricity is measured in kilowatts-hours, kW*h. this quantity can be converted to which other unit that measures energy? a.Pascals b.Joules c.Newtons d. Watts
April 12, 2011

english
what is the topic sentence in each paragraph? 1. Alice Doe’s article discussed overlooked tax deductions. It talked about some of the most commonly missed deductions. Whereas her use of statistics seemed to bolster her arguments, it would have been nice to see her ...
April 10, 2011

physics
Suppose 0.0290 kg of steam (at 100.00°C) is added to 0.290 kg of water (initially at 19.7°C.). The water is inside an aluminum cup of mass 44.7 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside environment. Find ...
April 9, 2011

eng. macbeth
this is a question on macbeth act II, i truly NEED anyone's help with this since it's due tom. Q.what would you say is the mood of Act II? What images and actions help to create this mood?why might images of blood and water appear in scene 2, and what do they symbolize?
March 31, 2011

Physics
When spiking a volleyball, a player changes the velocity of the ball from 4.5 m/s to -20 m/s along a certain direction. If the impulse delivered to the ball by the player is -9.7 kg * m/s, what is the mass of the volleyball?
March 29, 2011

physics
In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45-g ball acquires a speed of 41 m/s, estimate the magnitude of the force exerted by the club on the ball.
March 29, 2011

Physics
A 0.125-kg baseball is dropped from rest. If the magnitude of the baseball's momentum is 0.750 kg * m/s just before it lands on the ground, from what height was it dropped?
March 29, 2011

algebra 2
Use the function to answer the question. h(x) = 4|x| 3 What is the value of h(6)? (Points : 4) 27 21 21 27
March 23, 2011

chemistry
Ammonium iodide dissociates reversibly to ammonia and hydrogen iodide: NH4I(s) ↔ NH3(g) + HI(g) At 400ºC, Kp = 0.215. If 150 g of ammonium iodide is placed into a 3.00-L vessel and heated to 400ºC, calculate the partial pressure of ammonia when equilibrium is ...
March 22, 2011

Statistics
I am doing a stats study and im stuck on what test to perform. Please look at my subject and advise me.. I am testing to see whether a person that is best in math and science will be able remember more numbers than letters and if a person that is better in language and history...
March 21, 2011

Titties
I dont know but if its not related to tits it doesnt matter
March 20, 2011

algebra
Three points of a 5x5 square array are connected. How many square units are in the area of the largest possible triangle that can be formed?
March 20, 2011

busineslae
In the video game Corporate Cowboy, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of Goodly Corporation, ...
March 11, 2011

BUSINESS LAW
Which side of this debate do you support? Is it possible to strike an appropriate balance between the rights of both groups on this issue? At issue in the twenty-first century is the trade-off between the necessity of writers, musicians, artists, and movie studios to profit ...
March 8, 2011

physics
traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
March 7, 2011

physics
traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
March 7, 2011

Physics
ΣFy=0 Normal Force = mass*gravity N=m*g ΣFx=ma Force of Friction = mass*velocity^2/radius F=m*v^2/r Force of Friction = Coefficient of static friction*Normal force F=Us*N So... Us*m*g=m*v^2/r Us=v^2/(r*g)
March 6, 2011

math
Mathmate- Thank you very much, I completely understand your explanation now.
March 6, 2011

math
How many two digit numbers are there in base 5. I really don't understand how to figure this out. I know it's been asked already, but I still don't understand it.
March 6, 2011

Algebra
In base 5, how many two digit numbers are there?
March 5, 2011

physics
A computer is reading data from a rotating CD-ROM. At a point that is 0.032 m from the center of the disc, the centripetal acceleration is 111 m/s2. What is the centripetal acceleration at a point that is 0.070 m from the center of the disc?
March 4, 2011

Math
Emmy is 12. She writes an equation to find her mother's age, m. m - 12 + 35 What operation solves the equation for m? add 12 to both sides, or subtract 12 from both sides, or multiply both sides by 12, or divide both sides by 12
March 3, 2011

calculus
determine the domain for each function f(x)=6x^(2)-x-1, g(x)=x-1
February 27, 2011

calculus
determine the domain for each function f(x)=x-6, g(x)=3x^(2)
February 27, 2011

calculus
determine the domain for each function f(x)=2x+3,g(x)=x-1
February 27, 2011

math
randy pedals his bicycle at a constant rate of 15 feet per second. which linear equation represent his total distance traveled y after x seconds?
February 24, 2011

Chemistry
In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the following chemical equation. 3BrO-(ag) → BrO3 -(ag)+2Br-(ag) A plot of 1/[BrO-] vs. time is linear and the slope is equal to 0.056 M-1s-1. If the ...
February 19, 2011

chemistry
What is the rate law for N2O4+CO yields NO+CO2+NO2?
February 16, 2011

Chemistry
Ozone, O3, absorbs ultraviolet radiation and dissociates into O2 molecules and O atoms: O3 + hv --> O2 + O A 1.10 L sample of air at 22 degrees Celsius and 748mm Hg contains 0.25ppm of O3. How much energy, in joules, must be absorbed if all the O3 molecules in the sample of...
February 14, 2011

earth science
describe a possible pathway of carbon through the four spheres of the earth.Identifty what each the fourspheres of the earth contains
February 13, 2011

Math
Solve by factoring: (2x+9)(x-6)=0
February 8, 2011

Math
Multiply/divide and simplify: (12x^5-8x^3+4x)/(4x) The answer I got is 3x^4-2x^2+1. Is this correct?
February 8, 2011

Math
Simplify the expression: (3x^2-8x^3+4x)-(9x^2-x^3+x)+4(6x-7)
February 8, 2011

physics
would a larger rock dropped into a large pan of water make a larger wave than a smaller rock, and which would travel faster?
February 2, 2011

Chemistry
If 682000 kJ could be transferred with 100% efficiency to water, what volume of water, in liters, could be heated from 8.6 degrees Celsius to 60.0 degrees Celsius as a result?
January 31, 2011

Statistics -Please help :/
I need this as well......
January 28, 2011

Statistics -Please help :/
I'm having a problem with the entire Chi-square thing.. I do have answers to these but I'm not sure how to work them out.. If you could help that would be great! :) 1st part: A,B,C are schools. Is the choice of math programs followed independently by school? Write the ...
January 28, 2011

5th grade math
my sister say 76764546
January 27, 2011

Chemistry
What will be the final temperature of the water in an insulated container as the result of passing 6.00g of steam at 100.0 degrees Celsius into 100.0g of water at 24.0 degrees Celsius?
January 27, 2011

...
I happen to see this looking up my question and no. this was not me.. I'm wondering if "bj" took mine and modified it to make their own.. By the way, thank you for your help! I didn't get to reply because I was asleep..
January 26, 2011

Chemistry
After removing a crucible (containing CaCO3 obtained as a precipitate) from an oven, what could you do (if you were being extremely careful and had enough time) to prove that the CaCO3 is dry?
January 26, 2011

math
What is the answer to -12+r=-11
January 26, 2011

Espanol III
I am writing a composition for class and need someone to peer edit. No one around knows spanish so I am hoping someone here would be willing to look over it :) Thank you! Por primera, tú necesitas cambiar los hábitos. Si tú trabajas mucho para tener una ...
January 26, 2011

Algebra 1
x+x+1/3(x)=315
January 26, 2011

Algebra 1
answered.
January 26, 2011

Physics
A skier is gliding along at 2.62 m/s on horizontal, frictionless snow. He suddenly starts down a 16.9° incline. His speed at the bottom is 18.4 m/s. What is the length of the incline?
January 25, 2011

Biology
In each set up the dialysis tubing contains a solution of 30% glucose and safranin. However, the set ups differ in the contents of the beaker. The control set up has the same solution in the beaker while in the experimental set up it contains just water. In both the level of ...
January 24, 2011

Math
how do you convert 0.625 into a fraction
January 24, 2011

Chemistry
How do you make Tris into the acid form?
January 24, 2011

Chemistry
D is clearly the correct answer. In a sense, activation energy is related to temperature and at higher temps, molecules move faster and therefore have more frequent collisions. Catalysts lower the activation energy by bringing substrates together.
January 24, 2011

algebra 2
Farmer Brown wants to double the size of his rectangular backyard vegetable patch by adding a strip (of the same width) all the way around it. If its current patch is 12 feet by 18 feet, how wide does the strip need to be? how do you solve it step by step ?
January 18, 2011

Mathematics
no 11 1/8 she needs to reduce
January 12, 2011

Trigonometry
46
January 12, 2011

math
48 duh
January 12, 2011

math
If you put four 9-inch square boards together to make a bigger square, what would be the area of the new larger board in square feet?
January 12, 2011

math
If you put four 9-inch square boards together to make a bigger square, what would be the area of the new larger board in square feet?
January 12, 2011

math
If you put four 9-inch square boards together to make a bigger square, what would be the area of the new larger board in square feet?
January 12, 2011

math
all wrong
January 12, 2011

math
how do i write twenty-three hundredths as a number
January 11, 2011

math
Your answer will be zero. When you have a negative number like that in the beginning, you can make the problem much simpler by changing it. To change the problem, circle each number with the sign directly in front of it. So in this problem, circle the "-2" and the &...
January 5, 2011

History
What is predestination and how did it affect New England settlements? How did religion play a crucial role in the lives of New England women?
January 4, 2011

Chemistry
i think its 2. am i right ?
January 3, 2011

Chemistry
what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)? (1)0.806 (2)1.24 (3)2.48 (4)5.16 i appreciate any help.
January 3, 2011

Chem
so for zinc it would be 65.3 ?
January 2, 2011

Chem
what is the gram atomic mass of zinc? is gram atomic mass the same as atomic mass ?
January 2, 2011

trig
Simplify the expression cotx divided by secx
December 22, 2010

Math
Many more depending on how you interpret the words of the song: 1 2 + 1 3 + 2 + 1 4 + 3 + 2+ 1 5 + 4 + 3 + 2+ 1 6 + 5 + 4 + 3 + 2+ 1 7 + 6 + 5 + 4 + 3 + 2+ 1 8 + 7 + 6 + 5 + 4 + 3 + 2+ 1 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2+ 1 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2+ 1 11 + 10 + 9 + 8 + 7...
December 13, 2010

Math
Can't figure out the answer either need the equation explaining the relationship between s & t
December 9, 2010

Chem
did I do this right Consider the following reaction at equilibrium N2(g) + O2(g) + heat < = > 2NO(g) Indicate how each of the following will shift the equilibrium a. raising the temperature of the reaction. b. decreasing the volume of the reaction container. c. adding a ...
December 7, 2010

Math
Luke bought some thing at the store. He paid $5.98 for a pizza, $3.75 for a case of soda $2.50 for a box of brownie mix and $1.01 in sales tax. What information is needed to find Lukes correct change?
December 6, 2010

Math
C. 4/32
December 6, 2010

Math
Which fraction also belongs in set a? set - 3/24, 5/40, 9/72, 6/48 a. 4/24 b. 2/8 c.4/32 d. 8/40
December 6, 2010

Math
Jairo ears $256 for 50 hours of work. Write an equation(proportion) to find x his wages for 76 hours of work
December 6, 2010

Chemistry
is this right Consider the following reaction at equilibrium N2(g) + O2(g) + heat < = > 2NO(g) Indicate how each of the following will shift the equilibrium a. raising the temperature of the reaction. b. decreasing the volume of the reaction container. c. adding a ...
December 6, 2010

English 101
What does uncanny and marvelous mean?
December 4, 2010

English 101
What does uncanny and marvelous mean?
December 4, 2010

Chem
Calculate the percent yield of eugenol obtained considering the fact that clove oil is approximately 16-19 % clove by weight of cloves. isolated eugenol=061g purity of eugenol in clove oil=99.6% (based on clove oil gas chromatograph) Estimate the % yeild for eugenol.
November 28, 2010

physics help
wo thin rectangular sheets (0.13 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.13 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...
November 27, 2010

chemistry
why sugar dissolve in cooking oil
November 25, 2010

Chemistry
By titration it is found that 68.9 mL of 0.122 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.
November 22, 2010

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