Tuesday

May 24, 2016
Total # Posts: 524

**Environmental Engineering**

The two ponds in the figure below can be modeled as completely-stirred tank reactors (CSTRs) in series. The first-order decay rates for each pond are different but the inflow and outflow rates and volumes for the two ponds are the same. a. Write a mass-balance (differential) ...
*August 26, 2013*

**ENglish**

4. To focus on your most important goal is: A. be SMART B. be committed C. prioritize your goals D. set the goal it is C???
*August 15, 2013*

**philosophy**

Argument Evaluation # 1 – Is morality universal? Instructions: In your own words, identify the argument or arguments in the following passage. Be certain to clearly identify the premise(s) and the conclusion for any argument. Indicate whether the premises require ...
*July 4, 2013*

**algebra 1**

0.08x+2.1=
*June 3, 2013*

**Geometry**

I appreciate any help you can give me. Here is my question: Find the coordinates of the images of A(2,3), and B(-2,3) under the following transformations. Assume that all size transformations are centered at the origin. a. A size transformation with scale factor 2 followed by ...
*April 17, 2013*

**principals of math**

x=264km
*April 14, 2013*

**principals of math**

a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm. the shortest of the corresponding real-life distances is 123km. find the longest of the real-life distatnces. round to the nearest unit.
*April 14, 2013*

**Principal of Math**

=21.6 m
*April 14, 2013*

**Principal of Math**

a tree casts a shadow 29m long. at the same time the shadow cast b a 61cm tall statue is 82cm long. find the height of the tree. round results to the nearest unit.
*April 14, 2013*

**Chemistry**

What is the formula for CoCl2 with 45.5 percent water?
*April 11, 2013*

**mathe**

determine the current yield of a bond with par value of $1000 if the quoted price is 78 1/2 and the rate is 8 1/4
*April 6, 2013*

**geometry**

if the measurement of angle 1 plus the measurement of angle 4 equals 70, find the sum of angle 6 and angle 7
*March 29, 2013*

**fractions**

Harry spent one third of his money on a hat, 1/6 of his money on socks, and $12.00 on a tie. How much did Harry spend?
*March 16, 2013*

**Maths**

On a table there is a bowl of chocolates. All but four are yellow. All but four are blue. All but four are purple. How many chocolates are in the bowl?
*March 15, 2013*

**Chemistry**

If an unknown metal M is .521 g how do you calculate it's atomic mass?
*March 14, 2013*

**Chemistry**

If an unknown metal M is .521 g how do you calculate it's atomic mass?
*March 14, 2013*

**Adult Development and Life Assessment**

The ________________ stage of Erikson’s model of psychosocial development is like a “hub” that early stages lead to and later stages depend on. identity vs. identity confusion intimacy vs. isolation generativity vs. stagnation autonomy vs. shame and doubt ...
*March 5, 2013*

**Trig**

A Ferris wheel is 40 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 2 minutes. How many minutes of the ride are ...
*February 13, 2013*

**4th grade math**

* means to multiply.
*January 30, 2013*

**chemistry**

so2 deltaEN=1(having the greatest intermolecular forces of the polar bonds listed), deltaEN of h2s=.4 (having the weakest intermolecular forces of the polar bonds listed)
*January 28, 2013*

**Chemistry**

The antifreeze in a car is a 50% by weight solution of ethylene glycol, C2H6O2 in a water solvent. Calculate the boiling point and freezing point of this solution. (For H2O, Kb=0.52 C/m Kf= 1.86 C/m I can't even find the formula for this in my book, please help :(
*January 24, 2013*

**physics**

A piano is being moved into a concert hall up a 15m ramp that has a final height of 1.5m. To help with the weight, a rope has been tied between the piano and a counterweight through two pulleys. One at the top of the ramp and the other off the edge of the loading dock so that ...
*December 20, 2012*

**math**

A 154-lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/h. Write a function rule to represent the total calories burned over time by that person. Explain how the information in the problem relates to the function. Thank you in advance!
*December 8, 2012*

**Algebra**

x^6+x^7/x
*November 30, 2012*

**20 question please check my answers**

lol very, very late answer!
*November 30, 2012*

**20 question please check my answers**

Great Job! The answers are 100% correct!!
*November 30, 2012*

**Adult Development and life Assesment**

Behavioral
*November 30, 2012*

**Adult Development and life Assesment**

Its Both positive and negavie reinforcement increase the frequency of responses.
*November 30, 2012*

**Art History**

During the early 20th century, Americans saw themselves as different than Europeans and used art to reflect this idea. true or false?
*November 13, 2012*

**Physics**

A satellite is to be put into a circular low earth orbit at 149 km above surface. What orbital speed (km/s) is required?
*November 8, 2012*

**Chemistry**

Write a balanced equation for the combustion of gaseous ethane (C2H6) a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.
*November 6, 2012*

**Chemistry**

Write a balanced equation for the incomplete combustion of gaseous pentane (C5H12) which combines gaseous oxygen to form carbon dioxide, gaseous water and carbon monoxide.
*November 6, 2012*

**Science- Please Help**

Is sledding done better when the air temperate is 25 degrees Fahrenheit or 0 degrees Fahrenheit? Why?
*November 1, 2012*

**Science- Please Help **

If glaciers worldwide were to melt, would temperature around the glacier rise, fall or remain the same as the glacier was melting?
*November 1, 2012*

**Geology**

If glaciers worldwide were to melt, would temperature around the glacier rise, fall or remain the same as the glacier was melting?
*October 30, 2012*

**Geology**

Is sledding done better when the air temperate is 25 degrees Fahrenheit or 0 degrees Fahrenheit? Why?
*October 30, 2012*

**english**

B. American Realism... you are correct =)
*October 16, 2012*

**science**

A transformer has 3,000 loops in its primary coil and 1,500 loops in its secondary coil. What is the voltage in the secondary coil if the voltage in the primary coil is 120 V?
*October 14, 2012*

**Physics(class) /Math (problem)**

Oh I found my mistake thanks. :)
*October 3, 2012*

**Physics(class) /Math (problem)**

Moe earns 15% more than her husband Joe. Together they make 78000 per year. What is Joe’s annual salary? Answer to two significant figures. My answer was $31000, but the program doesn't seem to want to take it. Did I do something wrong?
*October 3, 2012*

**High School Math**

Write an equation for the sentence below. Then solve the equation. Thirteen multiplied by h is one hundred and four. A. 13h = 104; 91 B. 104h = 13; mc011-1.jpg C. mc011-2.jpg; 1,352 D. 13h = 104; 8 I chose A and it;s not right could it be D
*October 3, 2012*

**physics**

shuffleboard disk is accelerated at a constant rate from rest to a speed of 6.0 m/s over a 1.5 m distance by a player using a cue. At this point the disk loses contact with the cue and slows at a constant rate of 3.5 m/s2 until it stops. (a) How much time elapses from when ...
*September 25, 2012*

**Statistics**

The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3 dollars and a standard deviation of .25. Below what price do you find 30 % of all 12 packs?
*September 22, 2012*

**Human Sexuality**

I have to write a paper called "What my parent's told me" its about sex, std's and protection and more while growing until now and I am trying to get and opening paragraph and thesis..Can anyone assist me??? Thank you in advace
*September 11, 2012*

**social studies **

how i identify 5-7 positive and negative benefits of the government systems for canada ?
*September 9, 2012*

**math**

thanks!
*September 6, 2012*

**math**

thank you and then 100/4= 25 is that correct
*September 6, 2012*

**math**

What is the answer to this number sequence 400 100 200 50?
*September 6, 2012*

**math**

what is the quotient for 4/5 divided 3 equal?
*September 6, 2012*

**math**

why can you simplify 5(50+3) using the distributive property? why can't you simplify 5(50)+ 3 using the Distributive property?
*September 5, 2012*

**geography**

Hi. I am from South Korea and just saying Both Koreas are not a big country. So, China is the biggest.
*August 21, 2012*

**TLE**

identify the two division of design in garment construction
*August 14, 2012*

**Adult Development and Life Assessment**

Sue the choices he would have been given were probably... Operant Conditioning Social Learning Classical Conditioning Cognitive Awareness I Chose...Social Learning
*August 12, 2012*

**World Literature**

Interpret sapphos poems, Lonliness Before they were mothers Maidens dancing in moonlight
*July 29, 2012*

**Math 126**

The answer is 52
*July 16, 2012*

**chemistry**

equilibrium pressure at 731 K for the reaction H2+I2-2HI initially the mixture contains 0.08592 each of H2 and I2 and 1.0atm.what is the pressure of HI at equilibrium?
*July 10, 2012*

**Engineering Physics**

A 4kg box is compress 50 cm on a spring (k=100 N/m) and then slides across a horizontal floor. If (u=0.4) between the box and the floor 1) How much work is done by friction as the box comes to a stop? 2) Assuming the frictional force is constant, how far will the box slide ...
*July 8, 2012*

**help please :)**

its D
*June 20, 2012*

**Physics**

Planet Jupiter revolves around the Sunin 12 years (3.79 X 10^8 sec. What is its mean distance from center of Sun? mass of sun is 1.99 x 10^30 kg.
*June 17, 2012*

**Physics**

A mass is stretched 4cm from equilibrium position of a spring. If the displacement is doubled, what can be concluded about the restoring force? A. It halved. B. Same C. Increased by 4 D. Decreased by 4
*June 17, 2012*

**Physics**

If you know that the period of a pendulum is 1.87sec. What is the length of that pendulum? (gravity 9.81m/sec squared)
*June 17, 2012*

**Physics**

Two balls undergo inelastic collision. The y-momentum after the collision is 98 kilogram meters/second, and the x-momentum after the collision is 100 kilogram meters/second. What is the magnitude of the resultant momentum after the collision?
*June 15, 2012*

**College Physics**

thank you very much for your help M Bil
*May 31, 2012*

**College Physics**

A golf ball is it with the initial velocity of 50.0 m/s at an angle of 55 degrees above the horizontal. (a) How high will the ball go? (b) What is the total time the ball is in the air? (c) How far will the ball travel horizontally before it hits the ground?
*May 31, 2012*

**Earht Science **

To bobpursley, the half life is 40.(potassium 40)
*May 9, 2012*

**Earth Science**

How long will it take for Potassium to have a 25% of oringinal radioactive product left?
*May 9, 2012*

**english**

In comparison to the 17th century, the 18th century was ______. A. more internally stable; however, lesser rebellions and issues still occurred within Great Britian. B. much more violent; workers' riots and rebellions led to large numbers of deaths. C. filled with ...
*May 8, 2012*

**Adult Development and Life Assessment**

conventional morality
*March 24, 2012*

**Math Finite **

Experiment: roll a fair die and flip a fair coin. What is the probability is that you roll a 3 and flip a head?
*March 19, 2012*

**physics**

a star has a mass of 2.0 10 30kg and a radius of 3.4*106m. what is its average density in kg/m3
*March 15, 2012*

**math**

using two fair dice, what is the probability of rolling a sum that exceeds 4?
*March 12, 2012*

**math**

Write expression for the other five trigonometric ratios for each acute angle: A) cscƒÆ=a/b B) secƒÀ= x+1/x-1, x‚1
*February 24, 2012*

**accounting**

You notice that your accounts receivable days have doubled in the first six months of this year. Do you give the A/R Director a bonus or put him/her on probation? Why? Explain fully what questions you would ask the Director about the A/R and why it has doubled.
*February 22, 2012*

**physics**

850N/(3r)^2= 850/9r^2=94.4 Newtons
*February 22, 2012*

**physics**

Take the weight and divide it by 9.
*February 22, 2012*

**Math**

8. If all 5 beads are red, only 1 bracelet can be formed. If 4 beads are red and 1 is blue, only 1 bracelet can be made. If 3 beads are red and 2 beads are blue, 2 different bracelets are possible: the blue beads together or separated by the red beads. The symmetry in this ...
*January 29, 2012*

**Math**

5. The only sequences that are both arithmetic and geometric are constant sequences, in which all the terms must be the same. For us to have a sum of 20, each term of the sequence must be 5. We can show this algebraically by solving the system of equations a + d = ar and a + ...
*January 29, 2012*

**Math**

25. The sum of a penny, a dime, and a quarter is 36 cents. The number 36 factors into 2²•3². To get an integral value in dollars, we must multiply by 5² so that the product ends in two zeroes. Any multiple of 25 will work, but 25 is the least of those values.
*January 29, 2012*

**pysics**

A river is one mile wide and the water flows at the rate 3 miles/hour. If you can paddle a canoe 5 miles/hour in still water, then how long will it take you to paddle across the river and back? How long would it take you to travel one mile upstream (measured along the bank) ...
*January 26, 2012*

**science**

What effect will the current governmental initiatives that focus on expanding health care coverage to more Americans have on health care costs and health care services in the United States? What would you add or subtract from the recently approved healthcare bill?
*January 24, 2012*

**Math **

What equation do I use to find out what I need to get on my exam to pass my class. I have a 65.9% and the exam is 20% of my grade....if you need any additional information let me know..... also a passing grade is 59.5
*January 17, 2012*

**chemistry**

At a pressure of 1.7 atm a balloon has a volume of 4.98 L . If the pressure is decreased to 1.0 atm (at constant temperature) what is the new volume of the balloon?
*December 14, 2011*

**Chemistry**

Do I need to first figure out the PH? I believe that a= 3 and b=2.87 therefore it will require more naoh to titrate the acetic acid. I am not sure i figured the ph of acetic acid correctly, or if i am on the correct path here...
*December 9, 2011*

**Chemistry**

Suppose you have two solutions to titrate with NaOH: (a) 10 ml of.1M HCL (b) 10 ml of .1M CH3COOH would you expect either of the solutions to require different volumes of NaOH in order to reach an end point? Explain
*December 9, 2011*

**MEANING**

What is the meaning for vagaries.also give me a sentence for it.
*December 6, 2011*

**meaning**

what does the word vagaries mean.Also put a sentence for it
*December 6, 2011*

**calculus**

An annuity has a differential equation of y'=4500+.035y, and an initial condition of y(0)=1000. Describe what is going on.
*December 1, 2011*

**chemistry**

6.022 x 1023 atoms. Thank you Dr Bob222
*November 30, 2011*

**chemistry**

How many atoms are in 95.96 g of molybdenum (Mo)
*November 30, 2011*

**Physics!**

The following four forces act on 4.00 kg object: F1 = 300 N east F2 = 700 N north F3 = 500 N west F4 = 600 N south What is the acceleration of the object?
*November 1, 2011*

**Physics**

A 1000-kg car is driving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest in a distance of 140 m. What is the constant force applied to the car to bring it to rest?
*November 1, 2011*

**math**

What Is the ture math relationship using the numbers 1,1,1,10,7,8 ,5 to make it 1 or equal to one in fractions?
*October 27, 2011*

**Pre-Algebra**

suppose the projector is moved to a point 9 ft from the screen. what size will the picture be (width, height, and area) please help
*October 26, 2011*

**Home Insurance**

its D
*October 23, 2011*

**Math/Calculus**

After 5 days, a particular radioactive substance decays to 37% of its original amount. Find the half life of this substance. Is this right? Th= ln 2/ln(1/.37) x 5 days
*October 17, 2011*

**Accounting**

I have added Below my balance sheet and income statement now the statement of owners equity is the beginning capital 28,2800 plus the net income 21,550 which is 49,750 less withdrawals 5,000 equals 44,750 which does not equal my assets. I cannot figure out what I am doing ...
*October 8, 2011*

**Accounting**

Sorry about that I have added Below are my balance sheet and income statement now the statment of owners equity is the beginig capital 28,2800 plus the net income 21,550 which is 49,750 less withdrawls 5,000 equals 44,750 which does not equal my assets. I cannot figure out ...
*October 8, 2011*

**Accounting**

Statement of Owner's Equity I've tried to get it to balnce with the amount of on my balance sheet of $54,500.00 but can not can you help Cash… …… ……… … … … ………$21,500 Accounts Receivable………17,...
*October 8, 2011*

**help please :-)**

Could be both a and B
*September 28, 2011*

**help please :-)**

its the supporting details
*September 28, 2011*