Tuesday
September 23, 2014

Posts by josh


Total # Posts: 1,489

Calc
nevermind i got it
November 3, 2009

Calc
it got cut off...here's the rest: (i) 2 to 5 µm ? µm2 (ii) 2 to 3 µm ? µm2 (iii) 2 to 2.1 µm ? µm2 Thank you
November 3, 2009

Calc
The volume of a growing spherical cell is given below, where the radius is measured in micrometers (1 µm = 10^-6m). V = 4/3pi r^3 (a) Find the average rate of change of V with respect to r when r changes from 2. Evaluate your answers numerically. (i) 2 to 5 µm ? &...
November 3, 2009

Calc
The volume of a growing spherical cell is given below, where the radius is measured in micrometers (1 µm = 10-6m). V = 4/3pi r^3 (a) Find the average rate of change of V with respect to r when r changes from 2. Evaluate your answers numerically. (i) 2 to 5 µm ? &...
November 3, 2009

physics
how are the colors in a spectrum from an atom different from those in a rainbow? I think it is that the spectrum colors are more distinct and not "fuzzy" like a rainbow but I'm not sure
November 2, 2009

science
bounce gruond based microwaves off of rain and snow.used to track the direction and speed of storms?
November 1, 2009

Statistics
The following data set represents the repair costs (in dollars) for a random sample of 30 dishwashers. 41.82 52.81 57.80 68.16 73.48 78.88 88.13 88.79 90.07 90.35 91.68 91.72 93.01 95.21 95.34 96.50 100.05 101.32 103.59 104.19 105.62 111.32 117.14 118.42 118.77 119.01 120.70 ...
October 31, 2009

Programming Language
Create a method called countSelected, which takes an array of integers and an integer as input parameters and returns the number of occurences of the integer in the array. Example: data:{2, 1, 1, 8, 1, 0} select:1 ==> 3 public int countSelected (int[] data, int select) {
October 28, 2009

Advanced functions
Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.
October 25, 2009

Advanced functions
Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.
October 25, 2009

chemistry
what is 200grams-1000cm3? please help me!
October 25, 2009

art
Compare and contrast the representation of weight and space in the painting of The Good Shepherd in the Catacomb of Saints Pietro and Marcellino and the mosaic of Justinian and Attendants in Ravenna's Church of San Vitale. Devote and space. In your third paragraph discuss ...
October 23, 2009

economics
During 2000, Orlando was growing rapidly with new jobs luring people into the area. Despite increases in population and income growth that expanded demand for housing, the price of houses barely increased. Why?
October 22, 2009

algebra
give a counter example to show that each statement is false, the domain of each variable is the set of real numbers..... number 1 said 1. if a2=b2, then a=b idk how yo do it??
October 21, 2009

chemistry
It can not be found with the following information. Good luck, hahahaha
October 19, 2009

math
pennies are kept in a jar the mass of the jar is 20 g the mass of each panny is 5g le t the varible p represent the total mass of pennis and the jar. let the variable n represent the number og pennys. 1a. write an equation that represent the relation ship between mass p and n ...
October 17, 2009

chemistry
1) What is the major product of dehydration of an alcohol? 2) Why does the simplest ketone have three carbon atoms and no fewer?
October 14, 2009

Chemistry
How many moles of atoms are in 50 atoms Ba? Answer in units of mol.
October 11, 2009

physics
It's just 909 N in the opposite direction for each person. If this force against the ground (usually called the force of Friction or Fs) was not there they would not be able to put the tension upon the rope.
October 9, 2009

Physics
C=2
October 4, 2009

Statistics
A simple random sample of 25 has been collected from a normally distributed population for which it is know that o=17.0. The sample mean has been calculated as 342.0, and the sample standard deviation is s=14.9. Construct and interpret the 95% and 99% confidence intervals for ...
October 3, 2009

Statistics
From past experience, an airline has found the luggage weight for individual air travelers on its trans-Atlantic route to have a mean of 80 pounds and a standard deviation of 20 pounds. The plane is consistently fully booked and holds 100 passengers. The pilot insists on ...
October 3, 2009

Pysical Science
Mass of C3H8 Reacted with (g) Mass of O2 Reacted (g) Mass of CO2 Produced (g) 44 160 132 250 909 750 400 1,455 1,200 465 1,691 1,395 6. Based on the data in the table, how do you know that carbon dioxide is not the only substance formed in this chemical change?
October 2, 2009

physics
What average force in N is required to stop an 1,188 kg car in 9 s if it is initially traveling at 89 km/h? f=ma f=1,188(9.8) f=11642.4N This looks wrong to me. Can someone explain this to me.
October 1, 2009

sanches
A wire carries a 15 microampere current. How many electrons pass a given point on the wire in 1.0 ?
September 28, 2009

health
Write a 700- to 1,050-paper responding to the following: You have recently been employed by a small local hospital as an administrative assistant in the emergency room. The hospital does not provide any behavioral health services. You are assigned the task of gathering ...
September 27, 2009

Economics
Does a Contractionary Fiscal Policy help lower inflation? Or does Expansionary Fiscal Policy lower inflation?
September 24, 2009

Chemistry
How many grams are in a milliliter?
September 21, 2009

MATH
QUESTION: rounded to the nearest ten, i am 320, the sum of my digits is a multiple of 6 i am even.
September 17, 2009

5th grade
i re posted the question the way it is reading from my homework page. thanks for your help.
September 17, 2009

5th grade
i want to see if my answer is correct & that i am understanding this. question: round me to the nearest ten, i am 320 the sum of my digit is a multiple of 6 i am even. My Answer = 24 20 ten 24 2+4 =6
September 17, 2009

chemistry
Calculate the partial pressure of 24 g methane, 48 g of oxygen and 56 g of nitrogen contained in a 25L container. What is the total pressure.
September 11, 2009

physics
TY SIR. It extremely helped. I really appreciate your time..
September 11, 2009

literature - 11th grade
define "period structure
August 10, 2009

Engineering
A person rappels down a cliff. The person uses a 0.5 inch diameter rope, creating a 170-lb internal force. What is the normal stress in the rope. I got 340 by diving 170 from .5 is this right?
August 7, 2009

Physics
I got -2.84E14 plugged it in and got the wrong answer
August 6, 2009

Physics
A -3.5uC charge experiences a 13 ihat-N electric force in a certain electric field.What force would a proton experience in the same field? I got -7.28*10^-18 from (1.6*10^-19)(-45.5) I got -45.5 from multiplying 13 by -3.5 What am I doing wrong?
August 6, 2009

Physics
How do you do that
August 6, 2009

Physics
Take q1=23uC at (0,1), q2=16uC. at (2,0), and q3=? at (2,2). IF the force on q1 points in the -x direction, (a) what is q3 and (b) what is the magnitude of the force on q1? I know a is 16uC For part B I got .067 am I right I am using Coloumbs law k=9.0*10^9 q1=23*10^-6 q2=16*...
August 6, 2009

Physics
what will q be for both questions
August 6, 2009

Physics
A proton is at the origin and an electron is at the point x = 0.41 nm, y = 0.36 nm. Find the electric force on the proton. I got 7.529 *10^-11 but it wants the answer for fx and fy how do i get that?
August 6, 2009

Physics
There are two positive charges (+4C on the left and +6C on the right) that are both separated by an arbitrary distance. In order not to experience any net electric force where would you place the third charge. I say to the left of the +4C charge am i right?
August 6, 2009

CHem
How many oxygen atoms do you have in 2.00 grams of calcium phosphate? My answer is 3.9*10^22 by multiplying avogadros number by (2/31) Am I close? How many Ca^2+ ions do you have in 2.00 grams of calcium phosphate? I am getting 39, am i close? since there are 3 Ca2+ ions per ...
August 5, 2009

Physics
There is a flash of lighting that gives out a 25 C of negative charge from cloud to ground. Determine the amount of electrons involved? Do i use the formula F=qE I know one coulomb is 1.6 * 10 ^-19
August 5, 2009

Chem
How many oxygen atoms do you have in 2.00 grams of calcium phosphate? Do you use avogadro's number and how? How many Ca^2+ ions do you have in 2.00 grams of calcium phosphate? Any help would be greatly appreciated.
August 5, 2009

Chem
What is the name of Co2(C2O4)3 is it cobalt (2) tris ethanedioate
August 4, 2009

Physics (Astronomy)
Hi, what keeps objects in orbit, for example, preventing the moon from crashing into the earth under the force of gravity? I have read that it speeds up as it gets closer to earth but I don't understand why. Can someone help me? Thanks.
August 2, 2009

Math
375 is what percent of 500?
July 25, 2009

communication
What was your experience with the Center for Writing Excellence (CWE) in the past? In addition to the CWE, what other writing tools are available for revising a research paper? How can you become your own editor and review your writing with a critical eye?
July 20, 2009

psych
For this assignment, you will create a Microsoft® PowerPoint® presentation. Your presentation must briefly summarize how psychological disorders are classified including the role of the DSM IV. Your presentation must have at least one slide for each of the major ...
July 20, 2009

Chemistry
Hi!! Okay So I have this question here and you have to pick the false statement. Now I believe its a or e. But I really can't decide which it is. I might be totally wrong about this which is why I need some help... please! These are the options: a. the bond length is the ...
July 3, 2009

Chemistry
Hi! I have a question about Pi-Bonds: a. ) are the only kind of bonds present in double bonds b. ) have very little electron density along the internuclear axis c. ) are formed by endwise overlap of p-orbits d. ) are formed from hybrid orbitals e. ) are formed from s-orbitals ...
July 2, 2009

maths 4th grade
hello i need help with time table i really need help can you help because i really need help and i aslo need help with reading
June 26, 2009

algebra
we have a triangle with side a,b,&c. Side b=1,c=sqrt10 what is the length of side a?
May 4, 2009

Monroe
What do economist believe about future business cycles?
May 4, 2009

algebra II
Simplify. 2 square root 2(5 square root 10- 3 square root 2)
April 30, 2009

Math
I think there is supposed to be a few open spaces, maybe its we cant elope
April 15, 2009

Algebra
jon can type a report in 9 hours, nick can do the same job in 5 hours. How long would it take to type if they did it together?
April 7, 2009

8th Grade Science
Yeah,I've been wanting to ask that too.
April 1, 2009

college al
y=2x^3√9-x^2
April 1, 2009

algebra
find center and radius of circle with given equation: (x+4)^2 + (y-4)^2 = 25
April 1, 2009

8th grade
UH OH, Im getting this in grade 9 acedemic,
April 1, 2009

9th grade weighte average
how should i do weighted average
March 26, 2009

Chemistry-Urgent Help Please
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for clarifying this.
March 5, 2009

Chemistry
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for clarifying this.
March 5, 2009

Math
how did you get that. not rudely.
February 23, 2009

Math
dont get it
February 23, 2009

Math
The area of a rectangle is 90m 2. The base is three less than three times the height. What is the perimeter?
February 23, 2009

12th grade Data
In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)
February 23, 2009

CALC
no one to help me?????
February 3, 2009

CALC
what is the arc length of y=x^4/8 + 1/(4x^2) [-1,-2] i have tried this many times but i am not achieving the answer of 33/16 which is supposed to be correct....much help is appreciated
February 3, 2009

math
(a) Use the Midpoint Rule and the given data to estimate the value of the integral I. (Give the answer to two decimal places.) I = int_0^3.2 f(x)dx 1 x f(x) x f(x) 0.0 7.3 2.0 8.8 0.4 6.8 2.4 7.3 0.8 8.1 2.8 7.6 1.2 7.6 3.2 7.3 1.6 8.2 (b) If it is known that -5 ≤ f'...
February 3, 2009

6th grade_Science/Math
hey get a life
January 27, 2009

Math
Josh and Mike live 13 miles apart. Yesterday Josh started to ride his bicycle toward Mike's house. When they met, Josh had ridden for twice the length of time as Mike and at 4/5 of Mike's rate. How many miles had Mike ridden when they met? (a) 4 (b) 5 (c) 6 (d) 7 (e) 8
January 25, 2009

Statistics
That answer is wrong
January 24, 2009

Poetry (9th grade)
This is a poem by Alice Walker and a question at the end but I can't figure out the question. Poem title: "Good Night, Willie Lee, I'll see you in the morning." Looking down into my father's dead face for the last time my mother said without tears, ...
January 22, 2009

calculus
lim x->(pi/3) (cos x -(1/2))/(x-(pi/3)) is?
January 22, 2009

calculus
o alright thank you drwls
January 22, 2009

calculus
is it 2ln 2?
January 22, 2009

calculus
Can someone help me with the problem? f(x)={ln 2x, 0<x<2 {2lnx, x >or= 2 The limit lim x-> 2 f(x) is?
January 22, 2009

Physics
thank you for that answer you are amazing!
January 20, 2009

speech
What are the 5 Communication acts?
January 11, 2009

language arts
analogie for broom is to sweep as brush is to?
January 6, 2009

Math
5x-14=8x+4
January 6, 2009

IT Programming in South Africa for a 2007 matric..
IT Programming in South Africa for a 2007 matriculant? I matriculated 2007 with a Senior Certificate : HG Afrikaans 2nd Lang 45% HG English 1st Lang 51% SG Maths 66% SG Science 49% HG Biology 44% SG Computers 62% And I have experience with ms-dos, vbscript, javascript, css, ...
January 3, 2009

Algebra (y=kx)
just read my other question and u will find the question. but i really need he- lp!!!!!!!!!!!!!!!!!!!!!!!!!!!
December 7, 2008

math
ho do i make a y=k x problem with facts like: exports $465.3 billion and imports 402.4 billion?
December 7, 2008

Science
definatley c
December 7, 2008

chemistry II
I search the web and my texbook doesn't have the answer so please help What are the four steps of a process involving a heterogeneous catalyst?
December 3, 2008

8th Grade Algebra
just go 2 google and google it!
December 2, 2008

4th grade
2-1=1
November 25, 2008

9th grade
Need help with (x+5)(3xsquared-2x+1)
November 13, 2008

math
The scientists Verhulst (1828) where is the natural growth rate of the population when resources are limited and is a positive constant called carrying capacity of the environment. (a) Using sign analysis, find all constant solution and discuss the general behavior of solution...
November 6, 2008

math
The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are limited and is a ...
November 6, 2008

math
The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are limited and is a ...
November 6, 2008

edisto
What percent of 105 is 70?
October 30, 2008

Math
Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 --------------------- 2y
October 20, 2008

Math
Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 ---------------- 2y
October 20, 2008

EARTH SCIENCE
i messed up were i put a plus theres supposed to be =
October 19, 2008

EARTH SCIENCE
i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere +average air pressure at sea leve ...
October 19, 2008

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