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October 20, 2014

Posts by help


Total # Posts: 911

help!
Are ways to prevent oil leakage in Kalamazoo?
March 12, 2012

MsSue Please
well it's a speech not writing
March 12, 2012

MsSue Please
I'm the guy doing the persuasive speak on the Oil leakage in the Kalamazoo river. I can see you're from/know of this area. Can you give me some pointers/idea's of what I could talk about/include in my persuasive speech. I've been doing a little reading of how ...
March 12, 2012

calculus
The efficiency of an internal combustion engine is given by E= (1-v/V)^0.4 Where V and v are the respective maximum and minimum volumes of air in each cylinder. a) Show that ∂E/ ∂V > 0 and interpret your result b) Show that ∂E/ ∂v < 0 and ...
March 11, 2012

Math ?
If p is a positive  integer and is greater than 3. How many prime integers are there in 3p including 1 and 3p
March 10, 2012

Math ?
If p is a positive  integer and is greater than 3. How many prime integers are there in 3p including 1 and 3p
March 10, 2012

MsSue
you helped me last week on finding a persuasive topic for on issues of Kalamazoo. I chose Water Conservation.. Do you know any handy news articles that would be of help that are 2009 and greater? Thanks In Advance
March 9, 2012

geometry
h = 16, k = 4, a = 4.) k = 3, a = 9, h = __________ 5.) a = , h = 5, k = ___________ 6.) h = 4, k = 1, n = ___________ 7.) h = 9, k = 6, m = ___________ 8.) n = , h = 5, p = ____________, k = __________
March 9, 2012

American Literature
Would you describe Langston Hughes’s poetry as modernist in its themes, use of images, and style? Refer to specific examples from Hughes’s poetry to support your answer.
March 8, 2012

American Literature
Explain the meaning of one example of Cather's use of animals to describe human behavior.
March 7, 2012

American Literature
What is significant about the novel's title, My Antonia?
March 7, 2012

voc 8
is it teacher
March 7, 2012

Geometry
isaac is landscaping a yard , to see how well a tree shades are area of the yard. He needs to know the trees height . The trees shadow is 18 feet long at the same time isaacs shadow is 4 feet long if isaacs is 6 feet tall how tall is the tree
March 6, 2012

Trig
Please help. I can't get this problem at all. When two bubbles cling together in midair their common surface is part of a sphere whose center D lies on the line passing through the centers of the bubble. Also, angles ACB and ACD are 60 degrees. Show that the radius r of ...
March 5, 2012

math
Suppose the space needle in seattle washington casts a 220 ft shadow at the same time a nearby tourist cast a 2- foot shadow if the tourist is 5.5 feet tall how tall is the space needle
March 5, 2012

Calculus
A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average inventory on hand. It costs $40 for each delivery of pool tables. How many times per year and in what lot size should the store order pool tables to ...
March 4, 2012

Persuasive topics.
What are some issues in Kalamazoo, Michigan that I can do a persuasive speech on. Issues that are 2010 or greater?
February 28, 2012

Physics!!!
A 24-V battery is connected in series with a resistor and an inductor, with R = 5.6 Ω and L = 2.0 H, respectively. (a) Find the energy stored in the inductor when the current reaches its maximum value. (b) Find the energy stored in the inductor one time constant after the...
February 27, 2012

Chemistry
A solution is prepared by adding 50ml of .05 M HCl to 150 ml of .10 M HNO3. Calculate the concentrations of all species in this solution.
February 27, 2012

math
Complete the table for this question y=-1/2x+3 the table is x y 0 -2 -4 2 0
February 27, 2012

PHYS›CS
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...
February 27, 2012

physics
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. The weight of the ladder is 18.4 lb. A 60.8-lb boy climbs 4.18 m up the ladder. What is the magnitude of the frictional force exerted on the ladder by the floor?
February 27, 2012

American Literature
According to Langston Hughes in "The Negro Artist and the Racial Mountain, what is the "mountain standing in the way of any true Negro art in America"?
February 25, 2012

physics!!!
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest . The belt is a 215-turn coil. When the patient inhales, the area encircled by the coil increases by 41.0 cm2. The magnitude of Earth's magnetic field is 50.0 µT and ...
February 25, 2012

Chemistry
I got it, thanks!
February 23, 2012

Chemistry
An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below. A: [NO]0 = 9.63 × 10-3 M, [O2]0 = 4.1 × 10-4 M t(s) 0/3.0/6.0/9.0/12.0 [O2] 4.1/...
February 23, 2012

Calculus
Find an equation (in terms of x and y) of the tangent line to the curve r=3sin(5theta) at theta=pi/3
February 21, 2012

Calculus
Thank you!
February 20, 2012

Calculus
Sand is poured onto a level piece of ground at the rate of 0.25 m^3/min and forms a conical pile whose height is equal to its base diameter. How fast is the height increasing at the instant when the height is 0.50 m? V = 1/3(pi)(r^2)h I got 3/pie, is that correct?
February 20, 2012

American Literature
Based on "To Whistler, American," how does Pound view the role of American art and literature?
February 18, 2012

American Literature
least published, like whose work wasn't published that much, or didn't write that much compared to the others.
February 18, 2012

American Literature
Of Fitzgerald, Hemingway, Pound, and Stein, who was the least published writer? I have no clue about it
February 18, 2012

Politics
no, i think it is false
February 17, 2012

Politics
true
February 17, 2012

Politics
At the national level, America is best described as having a direct democracy system of government. True or false
February 17, 2012

Politics
Q. The words “wall of separation between church and state” appear in the Constitution. a. true b. false
February 17, 2012

math
thanks guys!
February 16, 2012

math
solve for x: -3x^2+6x-3=0
February 16, 2012

Algebra 2
log100^x
February 6, 2012

PreCalculas
Can someone tell me what the graph of r=cos (5/2 x angle) should look like?
February 2, 2012

physics!!!
Two capacitors, C1 = 27.0 µF and C2 = 35.0 µF, are connected in series, and a 21.0 V battery is connected across them. (a) Find the equivalent capacitance, and the energy contained in this equivalent capacitor. equivalent capacitance= µF total energy stored...
January 27, 2012

math
Kelly opened a savings account with $500 she received at 8th grade graduation four years ago. The account pays 2.5 percent compounded daily. How much should be in the account now?
January 25, 2012

math
How much money would you have in a savings account at the end of one year, if you saved $1000 at two percent interest compounded quarterly? Round to the nearest dollar
January 25, 2012

math
Michelle put $2000 in a savings account at 1.75 percent interest. She kept it there for eight years. How much interest did she earn?
January 25, 2012

math
Orlando has a bank statement balance of $414.25 and $5.90 service charge. His check register shows $374.16 and he has two outstanding checks of $26.54 and $21.78. What is his true balance?
January 25, 2012

Chemistry
This is what I did: moles of H2O = 3.88 delta H rxn = -2044.02 (3.88 moles)(6.01 kJ/mol) = 23.359 kJ (3.88 moles)(75.291 J/mol/C) = 29.263 kJ 23.359kJ + 29.2636 kJ = 29.286 kJ (44 g of C3H8)(29.286kJ/-2044.02kJ) = 0.6304 g But I think I did something wrong??
January 24, 2012

Chemistry
How many grams of propane must be burned to provide the heat needed to melt a 70.0-g piece of ice...? How many grams of propane must be burned to provide the heat needed to melt a 70.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no ...
January 24, 2012

Chemistry
Thanks
January 23, 2012

Chemistry
Knowing that delta Hvap for water is 40.7 kJ/mol, calculate Pvap of water at 46 C
January 23, 2012

math
Bart had an income of $38,250 last year. If the inflation rate is 4.5%, what is his purchasing power?
January 23, 2012

math
If your annual income from a part-time job is $4523, and the inflation rate is 6 percent, what is the purchasing power of your income?
January 23, 2012

math
Let C = 2.32 N + 34180 represent the cost (C) of raising a child to 18 years of age, on an income (N). If the cost is $120,000, what is the income?(
January 23, 2012

math
You spend $685 a month on living expenses. If your monthly income is $1500, what percent of your income do you spend on living expenses?
January 23, 2012

math
Una makes $64 a week, plus 15 percent of the cost of meals that she serves. Use the equation, y = 0.15x + 64, to predict what she makes in a week when she serves $355 worth of meals
January 23, 2012

civics
@writeacher ...i'm still confused.
January 21, 2012

civics
Which is NOT a responsibility of the Department of Agriculture? 1. The opening of foreign markets to U.S. agricultural products 2. To oversee federal anti-hunger programs 3. The designation of lands for private and public use =4. Support for farmers with agricultural research
January 21, 2012

Civics
Which is NOT a responsibility of the Department of Agriculture? 1. The opening of foreign markets to U.S. agricultural products 2. To oversee federal anti-hunger programs =3. The designation of lands for private and public use 4. Support for farmers with agricultural research
January 21, 2012

Physics!!!
The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere. (a) What is the net charge on the sphere?
January 20, 2012

Physics!!!
The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere. (a) What is the net charge on the sphere?
January 20, 2012

Math
If your annual income from a part-time job is $2,698, and the inflation rate is 4 percent, what is the purchasing power of your income?
January 19, 2012

MAth
Dan bought a home theater system for $178.99 on the installment plan. The terms of the contract said that he would pay $35 a month for six months. How much are his total payments?
January 18, 2012

Algebra 1
Please help me find the answer to this problem. it would be nice to have the details to how you came by the answer: Radical of 3/4 + radical of 1/3 your help is greatly appreciated
January 6, 2012

chem
you need to make .80 M solution of NiSO4 (aq). How many grams of NiSO4 * 6H2O should you put into a .50 L volumetric flask?
December 12, 2011

Physics
The moment of inertia of an asteroid rotating about its own axis is 5.00 ! 10 4 kg"m2. Its angular velocity is 40.0 rad/s. If a force acts on the asteroid for 0.100 s, increasing the angular velocity to 48.0 rad/s, find its magnitude
December 9, 2011

Physics
A 6110-kg bus traveling at 20.0 m/s can be stopped in 24.0 s by gently applying the brakes. If the driver slams on the brakes, the bus stops in 3.90 s. What is the average force exerted on the bus in both these stops?
December 9, 2011

Physics
Analyze the collision of a baseball with a bat. During which portion of the collision does the baseball’s velocity reach zero? a. before the collision b. during the collision c. one second after the collision d. one-hundredth of a second after the collision
December 9, 2011

Physics
Which conditions will result in the smallest change in momentum? a. a large force over a long time period b. a large force over a short time period c. a small force over a long time period d. a small force over a short time period
December 9, 2011

Physics
A rocket leaves a launch pad at liftoff with a great deal of upward momentum. What was initially given downward momentum? a. the launch pad b. the astronauts aboard the rocket c. the expelled fuel d. the entire Earth
December 9, 2011

Physics
A 0.140-kg baseball is pitched horizontally at 36.7 m/s. When a player hits the ball, it moves at the same speed, but in the opposite direction. If the bat and the ball are in contact for 0.450 ms, calculate the average force the bat exerts on the ball.
December 9, 2011

Physics
Candona strikes a 0.055-kg golf ball with a force of 260 N. If the ball moves with a velocity of 65 m/s, calculate the time the ball is in contact with the club.
December 9, 2011

Physics
A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a speed of 3.00 x 10^4 m/s. What is the force exerted on the rocket?
December 9, 2011

Physics
A lump of clay with a mass of 5.0 ! 10-2 kg is thrown toward a wall with a velocity of 3.0 m/s. The clay bounces off the wall with a velocity of #0.5 m/s. What is the impulse on the clay? If the clay in the previous problem impacted the wall for 5.0 ms, what was the average ...
December 8, 2011

Calculus
A 727 jet needs to attain a speed of 200 mph to take off. If it can accelerate from 0 to 200 mph in 30 seconds, how long must the runway be? (Assume constant acceleration)
December 8, 2011

Physics
A helium balloon lifts a basket and cargo of total weight 2250 N under standard conditions, at which the density of air is 1.29 kg/m3 and the density of helium is 0.178 kg/m3 . What is the minimum volume of the balloon? The acceleration of gravity is 9.81 m/s2 . Answer in ...
December 5, 2011

chemistry
A solution of sulfuric acid in water that is 25% H2SO4 by mass has a density of 1178 g/ml. Which expression gives the molarity of this solution?
November 16, 2011

speech
Describe a scenario in which one would expect an opposed audience. Explain context
November 14, 2011

Chemistry
The primary reason for forming multiple bonds when manipulating electron dot structures is:
November 14, 2011

Chemistry
Ionic bonding typically occurs when a ______________ bonds with a ______________
November 14, 2011

math
. A project management consultant estimated that if a particular project was completed, that t years after its date of completion, P thousand persons would be direct beneficiaries of the project, where P (t) = t3/3 - 5t2 +20t, 0<t<12 For what value of t will the maximum ...
November 8, 2011

Chemistry
Hi there - My labs and lectures aren't in synch at the moment so we are now doing a prelab that is asking for info I haven't been taught yet uggg... The prelab question I'm having trouble with is as follows: What is the volume at STP for 0.415 g of argon gas? Also...
October 29, 2011

Math
Find three ordered pairs that satisfy the equation. y = x+2 (0,1)(0,3)(2,0)
October 28, 2011

math
Thanks, I was close! I'm not that good with plotting graphs.
October 28, 2011

math
Graph the line! y=5x+2 the plot point that i came up with are (0,2)(2,8) is this correct?
October 28, 2011

Math
yes
October 28, 2011

math
Find the amount of compound interest earned in an account that opens with $23,000, earns 3.3% interest compounded daily, and is held for 25 years. Assume 360 days in a year.
October 27, 2011

math
6950*.105=525 is this correct?
October 27, 2011

math
Find the ending balance in an account that opens with $6,950, earns 10.5% interest compounded monthly, and is held for 15 years.
October 27, 2011

Math
Find the ending balance in an account that opens with $5,000, earns 7.5% interest compounded quarterly, and is held for 5 years.
October 27, 2011

Chemistry
Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14
October 20, 2011

Chemistry
See above what?
October 20, 2011

Chemistry
Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14
October 20, 2011

Chemistry
When a solution is made from 1.0 g of KI and 90 mL of water, what is its molarity?
October 20, 2011

Chemistry
If 4.0 g of hydrogen and 10.0 g of oxygen are mixed according to the equation 2 H2 + O2 = 2 H2O, which is the limiting reagent?
October 20, 2011

chemistry
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely?
October 20, 2011

Healthcare professionals
Hospitals frequently seek ways to ensure survival. Sometimes an adversarial climate cannot be avoided when the action that is being considered is controversial. For example, a hospital may seek to expand its market reach by opening an inpatient drug treatment facility in a ...
October 20, 2011

chemistry
how many milliliters of concentrated NaOH(19.3 M) are needed to make 8.00 L of 0.25 M base solution?
October 20, 2011

Math
e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form
October 18, 2011

math
Help please
October 18, 2011

math
e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form
October 18, 2011

France
thank you
October 16, 2011

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