Tuesday
October 21, 2014

Posts by Bob


Total # Posts: 2,432

math
Extremely large numbers, number of sand particles on the world, distance to the nearest star in KM's etc.
January 21, 2010

Chemistry
A 71.0 L cylinder containing CH2O at a pressure of 0.550 atm is connected by a valve to 1.50 L cylinder containing N2 at 266.0 torr pressure. Calculate the partial pressure (atm) of N2 when the valve is opened.
January 20, 2010

AED 204
i just want to know what to do? do u awnser it personally? Appendix D Educational Implications of Socioeconomic Status Matrix Directions: Based on your personal experiences and on the readings for this course, answer the questions in the green section of the matrix as they ...
January 18, 2010

AED 204
Who is most likely to be a part of this socioeconomic class? How do teacher expectations positively or negatively impact this socioeconomic class? How does tracking positively or negatively impact this socioeconomic class? How is financial support for schools serving this ...
January 18, 2010

biology
This qualitative study aimed at exploring whether students' successful use of analogy in learning curriculum complex science concepts was related: (a) to the level of their understanding of a specific analogy and (b) to their metacognitive awareness of how the analogy was ...
January 18, 2010

spanish
what does this mean__________ Que tienes en tu mochila?
January 14, 2010

spanish
what are you wearing
January 14, 2010

Physics
A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table (along with the pulley). Neglect friction. Mass m is held montionless and is then released. When it has fallen a distance h, it will have a ...
January 12, 2010

Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 6 6 6 2 2 you can post your response here please
January 10, 2010

chemistry
when there is 3.0 x 10^20 molecules in a closed container, the pressure is 1.2 atm. Using a pumper 1.5 x 10^20 more molecules are added to the container. what is the new pressure?
January 10, 2010

Math
like post here so that way i do not have to search for the old question
January 10, 2010

Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 5 7 1 0 1 can you post response in this question thanks
January 10, 2010

Algebra
Can this be simplified or factored into a more simpler form??? (X^2 + X)/(X^2 + 3X) Thank You
January 10, 2010

geo
blank
January 9, 2010

Plant Project
Is the Spotted Chinese Evergreen plant a monocot or dicot? This project is due Friday. I've researched on it and have found nothing but how to take care of it. Please help if you have any information!
January 5, 2010

english
how do you translate my winter break in french?
January 4, 2010

calculus
write a power series for e to the 2x and find the interval of convergence
January 3, 2010

english
Which word do you use in the following sentence? and why? (every day or everyday) Karen waited for the school play.
December 29, 2009

Physics
3) Joe has a playing time of 74 minutes. When the music starts, the CD rotating at an angular speed of 480 revolutions per minute (rpm). At the end of the music, the CD is rotating at 210 rpm. Find the magnitude of the average angular acceleration of the CD (in rad/s^2)
December 21, 2009

trig
this is in 3 grade?
December 17, 2009

Calculus
I got the same answer for the first derivative but I am still messing something up for the second derivative. It is probably taking out the common factor. I'll check back later, got to go.
December 15, 2009

Calculus
Find y' and y'' y=X^3/(X^2-1)
December 15, 2009

Unit rates
Explain how you can use a unit rate to compare what store is a better buy.
December 13, 2009

social studies
hi
December 13, 2009

Math
Find the line for the above data. X:5,5,7,8,9,11,12,12,14 Y:3,8,5,7,11,10,15,19,20
December 12, 2009

software
what are some different elements in a internal proposal
December 10, 2009

6th grade Math
the two numbers are 1.5 and 2.4 a+b=3.9 a-b=0.9 a=0.9-b subbing in the second formula into the first 0.9+b+b=3.9 2b=3.0 b=1.5 a+1.5=3.9 a=2.4
December 8, 2009

MATH
24 eggs * 3/4 = 24 *3 = 72 72/4 = 18 eggs broke 18/24 = 3/4
December 8, 2009

Chemistry
The Ph of the new acid/base is now "poo"
December 7, 2009

physics
please answer this one if you know it, im soooo bad at physics
December 6, 2009

physics
A rocket is fired upwards with 200.0 J of kinetic energy. How high does the rocket get at its highest point? Use the conservation formula.
December 6, 2009

physics
A batter hits a fly ball which leaves the bat 0.90 m above the ground at an angle of 61° with an initial speed of 29 m/s heading toward centerfield. Ignore air resistance. (a) How far from home plate would the ball land if not caught? (b) The ball is caught by the ...
December 2, 2009

physics
A swimmer is capable of swimming 0.45 m/s in still water. (a) If she aims her body directly across a 75 m-wide river whose current is 0.30 m/s, how far downstream (from a point opposite her starting point) will she land? (b) How long will it take her to reach the other side? ...
December 2, 2009

Advance Biology
What is attacted by herpes?
December 1, 2009

Advance Biology
I also think the number 9 is RNA.
December 1, 2009

Advance Biology
I think number 10 is covalent bonds and number 11 is hydrogen bonds.
December 1, 2009

Advance Biology
I have to find the correct term that best fits each definition. 1)The "transforming factor" that alters pneumonia bacteria 2)The three parts of every nucleotide 3)A pair of these forms a "rung" in the DNA ladder 4)Used to "label" DNA and protein ...
December 1, 2009

Statistics
A car manufacturer is interested in conducting a study to estimate the mean stopping distance for a new type of brakes when used in a car that is traveling at 60 miles per hour. These new brakes will be installed on cars of the same model and the stopping distance will be ...
November 30, 2009

chemistry
Nevermind, I figured it out. :)
November 30, 2009

chemistry
Calculate deltaG from deltaH and deltaS. Use the table of standard thermodynamic data. calculate deltaG at 0 degrees C for CH3CH2CH3 + 5O2 --> 3CO2 + H2O. CH3CH2CH3 + 5O2 --> 3CO2 + 4H2O I've balanced the equation so far, I know that deltaG = delatH - T(deltaS) but ...
November 30, 2009

College Math
Shakespeare is credited with writing 37 plays, of which 11 are tragedies, 16 are comedies and 10 are histories. Determine the number of different ways you could choose to read 3 tragedies and 2 comedies??
November 28, 2009

Literature
kr i want to do that bout no 1 wil. anyway 4 my homework i9 need 2 do dat oh nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooolletme
November 26, 2009

chemistry
For the following: i) H3PO4 > H3AsO4 > H3SbO4 ii) H2Te > H2Se > H2S > H2O iii) HCl > HBr > HI iv) SbH3 > AsH3 > PH3 > NH3 The order of acidity is correct for which series? 1. ) all are correct 2. ) i and ii 3. )i, ii and iv 4. ) ii, iii 5. ii, iv...
November 24, 2009

science
Is oil nonmetallic
November 23, 2009

science
Is oil metallic
November 22, 2009

science
So Sue oil is not renewable
November 22, 2009

science
So is oil renewable or not
November 22, 2009

science
Is oil renewable?
November 22, 2009

science
Is oil nonrenewable?
November 22, 2009

science
Is oil inexhaustible?
November 22, 2009

8th grade math
24
November 22, 2009

physics
tried solving it got different final results
November 20, 2009

math
Need help with these problems please. I do not know how to break them down correctly. Thank you. 4x7+6-10 divided by 5 7-16x3 divided by 8+5 25 divided by 5x5+6-4
November 20, 2009

Civics
I have to give a description of the urban problems listed. Then, describe one way in which each problem can be solved. Housing and Economic Social Infrastructure and Transportation
November 18, 2009

Civics
I need help with finding the description and possible solution for the following: Housing and Economic Social Infrastructure and Transportation
November 18, 2009

Civics
I have to write a one page report describing the problems associated with urban sprawl. We are watching a video called Sprawling from Grace, which talks about America being so dependent on transportation. We have to use examples from the video as well as our own ideas. I need ...
November 17, 2009

math
how do you write .0125 as a fraction and mixed number in simplest form? Little confused.
November 14, 2009

math
How do you read .0125
November 14, 2009

Physics
A ball is hit over the fence at a 45 degree angle. The fence is 98 meters away. At what velocity does the ball leave the bat?
November 12, 2009

Civics
What is the relationship between a state and a municipality within that state?
November 12, 2009

AP Us History
true
November 9, 2009

Advance Biology
Compare mitosis and meiosis by completeing the chart. Mitosis- Meiosis-homologous chromosomes pair and then seperate Mitosis- Meiosis-needed for sexual reproduction
November 9, 2009

9th grade- Algebra 1
Arowofgirlslegs
November 9, 2009

History
Currently, Who is the USA president?
November 8, 2009

Civics
I don't understand this question. What kinds of policies do you think states may set with respect to school attendance and graduation requirements?
November 5, 2009

Civics
What legislative policy making role is a governor expected to fill? Would it be that the governor attends political-party dinners, speaks at party functions, and may campaign for party candidates in local elections.
November 4, 2009

Civics
In the federal system, how is sovereign power divided among state and federal laws and constitutions?
November 4, 2009

Trig
I worked it out. Can you tell me if these are right. <C=56.4 degrees <A=83.6 degrees Area=10095.2 We have to round to the nearest tenths.
November 4, 2009

math 115
2/7 over = 1.6 20 over r solve for r not looking for just an answer, would appreciate the formula for solving, thanks
November 4, 2009

math
2/7 = 1.6 --- ---- solve for r very confused 20 r
November 3, 2009

2nd grade math
2 tens 1 one
November 3, 2009

Math
I don't understand the question
November 3, 2009

Statistics
h t t p : / / t i n y u r l . c o m / y k 3 d 6 t c I'm not sure how to do #3.
November 3, 2009

math
graphing lines:x+5y=25
November 2, 2009

Statistics
how do you find equation of the least-squared line (line of best fit) from 2-vars stats and the correlation?
October 29, 2009

5th grade
I need help with 6 math unscrambler problems.
October 26, 2009

science
What are the physical features of niagra falls.
October 26, 2009

physics
5
October 24, 2009

Math
how do you place improper and mixed numbers on a number line?
October 22, 2009

calculus
I know what limits are. I just need an idea on what i can interview that has a limit like a car has a speed limit. But everyones using that and im trying to get some more ideas.
October 22, 2009

calculus
I have to do an "interview" with a limit. Any ideas on what i should interview.
October 22, 2009

geometry
What is the geometrical reason why sewer lids are round?
October 22, 2009

Civics
Why do federal judges serve for life?
October 22, 2009

The secret of gumbo grove
hi
October 20, 2009

biochem
It would have a clear spot in the middle of the cell if you try a Gram stain, but if you use a spore stain, it would have a green spore inside of the red cell. P.S. You shouldn't wait until the night before your lab manual is due before you decide to do it.
October 20, 2009

micro biology
If you forgot to add the safranin to your spore stain, you would only be able to see the spores and not the actual cells. P.S. This was an easy one, the answer was basically on the lab handout, and you should have picked it up from Ms. Stafford during class.
October 20, 2009

Physics
1.A 24 kg crate initially at rest on a horizon floor requires a 75 N horizontal force to set it in motion, once the crate is in motion, a horizontal force 53 N keeps the crate moving with a constant velocity. Find the coefficient of kinetic friction, between the floor and crate.
October 19, 2009

Math
Estimate 4.8, 10.1 and 0.7 to the nearest whole number.
October 19, 2009

math
Round 9.86-5.47 to the nearest whole number. Need to show my work.
October 19, 2009

Math
Estimate by rounding each term to the greatest place: 78.17-37.52 Need to show my work
October 19, 2009

Statistics
I'm confused about the difference between the population and experimental units in a situation like the following: A questionnaire is being used to measure the reaction of two groups of students from a particular American university to a television clip: one group who ...
October 17, 2009

Statistics
I don't understand how you did that. (You're supposed to draw 2 cards - an ace and a 10, an ace and a Jack, an ace and a Queen, or an ace and a King).
October 15, 2009

Statistics
What is the probability of drawing an ace and a 10, Jack, Queen, or King from a deck of cards?
October 15, 2009

Math
Toni has a piggy bank filled with nickels, dimes and quarters. She has a total of $3.00. If she has fewer than 12 coins, What combination of coins could she have in her bank? How many possibilities can you discover?"
October 15, 2009

Statistics - Monte's Dilemma
Why does it make a difference when you switch doors? What is the probability of winning given that you stayed and what is the probability given that you switched?
October 15, 2009

world history
What was the goal of the young ireland rebellion?
October 15, 2009

Civics
What are three constitutional safeguards against abuse of presidenttial powers?
October 14, 2009

math
Two professional drag racers are speeding down a 1/4-mile track. If the lead driver is traveling 1.738 feet for every 1.670 feet that the trailing car travels, and if the trailing car is going 198 miles per hour, how fast in miles per hour is the lead car traveling?
October 13, 2009

Math
Henry's bus can go just 12 miles on a gallon of gasoline. When he started his vacation, the gas tank of the bus was 5/6 full. Later when Henry had driven 336 miles, the gauge showed that the tank was still 3/5 full. If his "low on gas" light will come on when he ...
October 13, 2009

math
Henry's bus can go just 12 miles on a gallon of gasoline. When he started his vacation, the gas tank of the bus was 5/6 full. Later, when Henry had driven 336 miles, the gauge showed that the tank was still 3/5 full. If his low on gas light will come on when he has 1/15 a ...
October 12, 2009

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