Wednesday
August 31, 2016

Posts by christine

Total # Posts: 532

Physics
What is the momentum of a 52 kg carton that slides at 5.0m/s across an icy surface?
March 10, 2014

us equality essay edit
its a rough draft and obviously isnt the entire thing The United States has diagnosed itself as one unified nation, indivisible, with liberty and justice for all. So cultivates the question- are the citizens of such an independent country truly free? The validity of the United...
February 11, 2014

math
A cup of brewed tea has 54 milligrams less caffeine than a cup of brewed coffee. If a cup of tea has 66 milligrams of caffeine, how much caffeine is in a cup of coffee?
October 14, 2013

williams pkwy
how much money must be deposited now @ 6 % interest compounded semi annually to yield an annuity payment of $ 4000 at the end of each six month period for a total of five years
October 6, 2013

Math
please explain steps use multiplication and distributive property to find quotient. 96÷6=
September 9, 2013

math
one positive integer is 3 more than another. the difference of their reciprocals is 1/6. find the twonumbers.
August 29, 2013

math
if 60 m of fencing is available for a rectangular garden, one side of which is against a barn, what areb the dimensions of the garden that will give the maximum area?
August 29, 2013

Environmental Engineering
To clarify the 'figure': Q, C(0) are the inflow parameters into the first pond. Q, C1 are parameters from pond 1 as it is about to enter pond 2. Q, C2 are outflow parameters from the second pond. Pond 1 has parameters V, C1, k1. Pond 2 has parameters V, C2, k2. Thanks...
August 26, 2013

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

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