Monday
August 31, 2015

Posts by brian


Total # Posts: 654

communication
the answer is c
October 7, 2010

Physics
rry leaves home at 4:07 and runs at a constant speed to the lamppost. He reaches the lamppost at 4:11, immediately turns, and runs to the tree. Larry arrives at the tree at 4:22. What is Larry's average velocity during his entire trip, if the lamppost is 363.0 m west of ...
October 5, 2010

algebra word problem
the difference between 2 numbers is 24. find the numbers if their sum is 88
October 4, 2010

chemistry
50.0 mL of water is heated from 60 C to 85 C. How much heat was absorbed by the water sample in joule Can anybody help me understand the process or rules to figuring this out? Thanks
October 3, 2010

ap chemistry
At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.74 m by 3.45 m by 3.93 m? Answer in units of kg.
October 1, 2010

ap chemistry
Th solution has a density of 1.049g/mL and only 40% of the solution is acetic acid
October 1, 2010

ap chemistry
i came up with the answer of 419 g
October 1, 2010

ap chemistry
Calcu- late the mass of pure acetic acid in 440 mL of this solution at 20 C. Answer in units of g.
October 1, 2010

Chemistry
How many molecules of Cl2 would be formed from the reaction mixture that produces the greatest amount of products? Consider the following reaction: 4HCl(g)+ O2(g)to 2H2O +2Cl2(g)
September 28, 2010

Math broadmoor
1 2 3 4 5
September 23, 2010

Accounting
It is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year’s principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for Biker’s ...
September 20, 2010

Physics
A jetliner can fly 6.50 hours on a full load of fuel. Without any wind it flies at a speed of 2.15 102 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During the entire flight, ...
September 19, 2010

math
describe a real life situation that can be represented by the following: A - (B U C) The U is a union symbol
September 17, 2010

Math
write 128 in each of the following bases A) five B)two C)twelve
September 17, 2010

Math
Where do the parentheses go in this equation? 8+3x6-4-1=13?
September 17, 2010

chemistry
2408
September 15, 2010

math
i need help on doing 442 mi in 8.5 hr and i dont know how to do it can you help me?
September 14, 2010

Physics
at what velocity would a snowball melt before it hit the wall at 32 degrees?
September 14, 2010

Math
call your tutor rather than trying to get someone else to do your course work for you
September 14, 2010

health
Case Study – Memorial Health System CPOE Implementation Identify at least five indicators of project failure that manifest themselves in this case study. 2. For each of those indicators, describe what you might have done differently to eliminate or minimize ...
September 13, 2010

health
this is the case study and instead of the landor one i put lack of involvment Case Study – Memorial Health System CPOE Implementation Memorial Health System is an eight-hospital integrated health care system in the Midwestern United States. The health system ...
September 13, 2010

health
Identify at least five indicators of project failure that manifest themselves in this case study. Are these right ? these are a few i have came up with: organized inertia lack of clarity of pupose lack of landor project status report insufficient leadership support
September 13, 2010

chemistry
fhdjfhsghjbfdhfegkfh,nbngdbhhfbebfgbhbgherhfjhge aka IONO
September 12, 2010

Science
in plants the process that happens when sugars break down and give off energy is called
September 8, 2010

Science
Why do we name hurricanes?
September 7, 2010

Science
Why do we name hurricanes?
September 7, 2010

math
xy = 8 y = x + 2
September 6, 2010

math
solve algebraically x^2 - 2y^2 = 11 y = x + 1
September 6, 2010

math
simplify 3sqrt-1/8
September 5, 2010

Division
3y-18/35 divided by y-6/15y
September 5, 2010

math
You make $ 90000 a year, and you get a 10% raise. Your new salary is $ .??? The next year you get a 10% cut. Your new salary is $ ????. That is ??? % less than your initial salary. How would I go about solving this??
August 26, 2010

college physics
double the height of H
August 24, 2010

math
make A 14 dot array that has exactly 2 rows
August 19, 2010

Algebra II
Two algebra II questions... simple, i believe? give a numerical example to show that subtraction is not commutative. and give a numerical example to show that subtraction is not associative. thanks(:
August 18, 2010

Physics
A scientist has devised a new method of isolating individual particles. He claims that his method enables him to detect simultaneously the position of a particle along an axis with a standard deviation of 0.12 nm and its momentum component along the axis with a standard ...
August 16, 2010

Physics
Please help me solve this! The spectrum of the sodium atom is detected in the light from a distant galaxy. If the 590.0 nm line is redshifted to 658.5 nm, at what speed is the galaxy receding from the Earth?
August 11, 2010

Physics
(a)Assuming that only gravity is acting on it, how far does an electron have to be from a proton so that its acceleration is the same as that of a freely falling object at the Earth’s surface? (b)Suppose the Earth were made up only of protons but had the same size and ...
July 29, 2010

chemistry
I'd like to know the answer! haha
July 16, 2010

Finance
On this problem, theres one thing holding me up. $3 = $1(1 + r)^(12/3) What is r? I cant get it. I even had a sample problem along the same lines and couldnt get that on.
July 10, 2010

Finance
Suppose an investment offers to triple your money in 12 months (don't believe it). What rate of return per quarter are you being offered?
July 10, 2010

Finance
You have just won the lottery and will receive $1,000,000 in one year. You will receive payments for 30 years, which will increase 5 percent per year. The appropriate discount rate is 8 percent. What is the present value of your winnings?
July 10, 2010

physics
I'm having trouble with question 2, please help The velocity of an object in simple harmonic motion is given by v(t)= -(0.275 m/s)sin(23.0t + 2.00π), where t is in seconds. 1) What is the first time after t=0.00 s at which the velocity is -0.100 m/s? 2) What is the ...
June 13, 2010

Physics
Thanks, I see how it's done. For question 2, I did: x = dv/dt = 0.275*cos(23t) = 0.275*cos(0.372rad) = 0.256 m which is incorrect for some reason.
June 12, 2010

Physics
The velocity of an object in simple harmonic motion is given by v(t)= -(0.275 m/s)sin(23.0t + 2.00π), where t is in seconds. 1) What is the first time after t=0.00 s at which the velocity is -0.100 m/s? 2) What is the object's position at that time? I tried solving ...
June 12, 2010

Physics
Nevermind I figured it out... :)
June 12, 2010

Physics
Two blocks of masses M and 5M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them, as seen in the figure below: img404.imageshack.us/img404/8349/sbpic0906.png 1) A cord ...
June 12, 2010

math
I appreciate all of your help. We had about 77 of these problems to do. These are the LAST two problems that I need some help on. Thank you so much for everything. 1/x-1 minus 2/x^2-1= -1/2 2/y plus y-1/3y= 2/5
May 1, 2010

Math
I appreciate all of your help. We had about 77 of these problems to do. These are the LAST two problems that I need some help on. Thank you so much for everything. 1/x-1 minus 2/x^2-1= -1/2 2/y plus y-1/3y= 2/5
May 1, 2010

math
Thank you!!
May 1, 2010

math
solve each equation: x over x+1 plus 2= 3x over x+2
May 1, 2010

math
Thank you!!
May 1, 2010

math
Solve each equation: 11/3v+2 minus 3/4= 5 over 3v+2
May 1, 2010

math
I appreciate your help. This is the last problem that I need help with today. The answer is suppose to be -1/4 3x/x+1=5x over x-1 -2
April 30, 2010

math
Solve the equation: Thank you 2/y + y-1/3y= 2/5
April 30, 2010

math quick?
5 over 2x-5 minus 4 over 5= 1 over 2x-5 I have a quick question... what would i multiply by? I know how to do the rest of the problem. Thank you
April 30, 2010

Math
Solve each equation: Thank you 5-x over 3 minus x-2 over 4 = 5/12
April 30, 2010

Math
Thank you I was able to do this problem.
April 30, 2010

Math
Solve each equation: 5 over 2x-5 minus 4/5= 1 over 2x-5
April 30, 2010

math
wats 4 divided by 137
April 28, 2010

Finance
I have a number of questions for a finance assignment that is meant as a review for our final. However my final is being written earlier than the rest of the class so the answers aren't up yet. I was hoping someone could answer two or three of the questions so that I can ...
April 19, 2010

social studies
americans are united by their strong belief in basic principles.they believe that people are born with privileges that cannot be taken away from them.these are
April 14, 2010

economics
state the effects of unemployment on the (A)consumers expenditure (b)investment (c)Government expenditure (D)The church.
April 9, 2010

math
A developer plans to build houses around lake okeebele. Most of his customers want to buy about 100 feet of lakefront. How many lots can the developer build around the lake? scale 100 feet=10,000 square feet
April 5, 2010

MATH
The triangular numbers are the numbers 1, 3, 6, 10, 15, . . .; the square numbers are the numbers 1, 4, 9, 16, 25, . . . The pentagonal numbers 1, 5, 12, 22, 35, . . .. The geometrical language is justified by the following diagrams: a. What are the first five hexagonal ...
April 2, 2010

math
ok this one is PHUN after the flea jumps on the rubberband, everytime the rubberband stretches the flea gets pulled along, as a rubberband stretches, part of it moves towards the object stretching it Thus each time the roo jumps the flea is pulled along a little bit... Thus ...
April 1, 2010

math
what is the eighth term of the sequence of the expression:5(n+2)?
March 18, 2010

art
why did kenneth clarks interpretation of the aferican mask is ethnocentric
March 12, 2010

Chemistry
Given an unknown mixture consisting of two or more substances explain one technique that could be used to determine whether that mixture is a true solution a colloid or a suspension
March 11, 2010

Organic Chem
4-nitro-veratrole
March 2, 2010

social studies
what are the three main types of resourses used for making,selling,and using goods and services?
February 23, 2010

English
What pronoun is used for the "Empire State Building"?
February 15, 2010

algebra 2
what are the real solutions of 750=x^3-15x^2+50x
February 1, 2010

algebra 2
what are the real solutions of 750=x^3-15x^2+50x
February 1, 2010

Math
A small business decides to lower the salaries of its employers by $8,250 over a year. To do this, all of the 15 employeers will have their salaries reduced by equal dollar amounts for the year. What is the pay-cut of each employee over the year? Answer is suppose to be $550
January 27, 2010

algebra 1-2
The sum of two numbers is 73. Their difference is 21. Find the larger number.?
January 20, 2010

earth Science
When a river is lengthened due to forward erosion, a _____ has occurred.
December 25, 2009

Elementary Algebra
when working the following equation, I came up with 0/4. Would the final outcome be 0? Here is the equation. 2x+3/4, and here is what I came up with.=2x+3/4=0/4=0
December 18, 2009

math
You have 75 employees, 1/6th of them retired, and 1/4 of them left the company for new jobs. how many employees did you have in the begining?
December 18, 2009

Computers
LAN is an acronym for "Local Area Network" and WAN is "Wide Area Network"
December 14, 2009

Physics
Two small loudspeakers that are 5.50 apart are emitting sound in phase. From both of them, you hear a singer singing C# (frequency 277 ), while the speed of sound in the room is 340 . Assuming that you are rather far from these speakers, if you start out at point equidistant ...
December 12, 2009

math/probability
If two fair dice are rolled, find the probability of a sum of 6 given that the roll is a "double". How do I do this?
December 7, 2009

probability/math
Three cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that the second and third cards are kings if the first card was not a king?
December 7, 2009

AP Physics
Assume that at sea-level the air pressure is 1.0 atm and the air density is 1.3 kg/m3. (a) What would be the height of the atmosphere if the air density were constant? 7.919 km (b) What would be the height of the atmosphere if the air density decreased linearly to zero with ...
December 3, 2009

to bobpursley
In my heads/tails question- why isn't it 1/6? I flip a coin three times, aren't there only 6 possible outcomes?
December 1, 2009

math
what are the odds in favor of getting at least one head in three successive flips of a coin? I need to know the formula on this. I have 1/6 over 1- 1/6. But I can't figure out how to do the math. Am I right?
December 1, 2009

math
Lead Contamination More than a decade ago high levels of lead in the blood put 88% of children at risk. A concerted effort was made to remove lead from the environment. In a random sample of 200 children taken more than a decade ago, what is the probability that 50 or more had...
November 20, 2009

us history
what territory did the french claim, prior to the french and indian war
November 18, 2009

physics
A bullet of mass 8.0 g is fired horizontally into a 2.2 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.40. The bullet comes to rest in the block, which moves 2.30 m. (a) What is the speed of the block ...
November 6, 2009

physics
Ricardo, mass 88 kg and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg canoe. When the canoe is at rest in the placid water, they exchange seats, which are 3.0 m apart and symmetrically located with respect to the center of the canoe. Ricardo notices ...
November 6, 2009

french 2
Quand tu vas a lecole
October 27, 2009

Chemistry
What are complementary colors and how due different wavelengths of light affect the original color?
October 26, 2009

Chemistry
What is a general rule relating the color of an object to the color(s) of light that it absorbs?
October 25, 2009

student council
what is a good speech of secretary and vice presidents: this is what secretary it does attend council meetings take pictures at school functions distribute and collect surveys at school funtions and from classrooms participate in council activities vice president attend ...
October 21, 2009

college
atoms heated in a sample emit only certain colors of light in sharp lines and not all colors blended together tells us what about the energy of an atom?
October 20, 2009

physics
A popular pastime is to see who can push an object closest to the edge of a table without its going over. You push a 130 g object and release it 2.00 m from the table edge. Unfortunately, you push a little too hard. The object slides across, sails off the edge, falls 1.00 m to...
October 19, 2009

Physics
A proton, moving with a velocity of vinitial i, collides elastically with another proton that is initially at rest. Assuming that the 2 protons have equal speeds after the collision, find (a) the speed of each proton after the collision in terms of vinitial and (b) the ...
October 13, 2009

English
Hello. I was wondering if you can please assist me with writing a short paragraph comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz. While doing so I have to explain how the tone and purpose of each story is different with at...
October 6, 2009

Physics
Two masses of 4.25 kg each, connected by a string, slide down a ramp making an angle of 44° with the horizontal. The coefficient of kinetic friction between m1 and the ramp is 0.31. The coefficient of kinetic friction between m2 and the ramp is 0.12. Find the magnitude of ...
October 6, 2009

Physics
A certain force gives mass m1 an acceleration of 10.0 m/s2 and mass m2 an acceleration of 4.0 m/s2. What acceleration would the force give to an object with a mass of (m2-m1)?
September 28, 2009

physics
A 24- kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 35- kg package on the ground. What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground?
September 28, 2009

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