Friday

November 21, 2014

November 21, 2014

Total # Posts: 141

**physics**

Suppose we wish to use a 4.0 m iron bar to lift a heavy object by using it as a lever. If we place the pivot point at a distance of 0.5 m from the end of the bar that is in contact with the load and we can exert a downward force of 640 N on the other end of the bar, find the ...
*November 16, 2014*

**chemistry**

answer to how much heat is required to raise the temperature of 68.0 g of AIF3 from 25 degrees celsius to 80.0 degrees celsius
*October 29, 2014*

**HELP IN SCIENCE ASAP!!**

lol
*September 19, 2014*

**Math using quadratic equation**

it quadratic word problem.
*September 15, 2014*

**math**

2n + m n = 1/2 m = 2/5
*May 25, 2014*

**Algebra**

w(9-w^2)
*April 30, 2014*

**Math help!!!! Thanks in advance!!!!!!!!!!!**

really...
*April 3, 2014*

**twh**

Isaiah walks 3 miles due north, turns and then 5 miles due east. How far is he from his starting point?
*March 20, 2014*

**math**

A & B Antiques issued the following bonds: Date of issue and sale: April 1, 20-1 Principal amount: $430,000 Sale price of bonds: 100 Denomination of bonds: $1,000 Life of bonds: 10 years Stated rate: 8%, payable semiannually on September 30 and March 31 Prepare journal entries...
*March 14, 2014*

**lol**

lol
*March 5, 2014*

**probability**

The random variables X and Y have the joint PMF pX,Y(x,y)={c⋅(x+y)2,0,if x∈{1,2,4} and y∈{1,3},otherwise. All answers in this problem should be numerical. Find the value of the constant c. c=
*February 27, 2014*

**Math**

DUH... 15 and the third...
*February 18, 2014*

**physics**

In what circumstances can the angular velocity of system of particles change without any change in the system\'s angular momentum? This cannot happen under any circumstances. This can happen if an external net torque is applied properly to the system. This can happen if ...
*February 4, 2014*

**math**

lol
*November 4, 2013*

**Physics**

What are all these things
*November 2, 2013*

**math help plzzzz!!!!**

QUESTION 10'S ANSWER IS : ************9.6 x 10^1 ************* ^^^^^^^^^^^^^^^^^^^^^^ BOSNIAN IS WRITE ON EVERYTHING EXCEPT QUESTION 10 THE ANSWER TO QUESTION 10 IS ABOVE ^^
*October 30, 2013*

**Math**

Thanks 4 answering! I needed it!
*October 27, 2013*

**word problem**

A change purse contains two loonies, six quarters, seven dimes, four nickels, and five pennies. Compare the loonies, quarters, and nickels by means of a ratio that is expressed in lowest terms.
*October 25, 2013*

**Word Problem**

Fifteen percent of a number is 10.5. What is the number?
*October 25, 2013*

**Algebra**

An Algebra I test contains 30 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The total test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points. Solve the system ...
*June 10, 2013*

**math**

326 is correct?
*May 27, 2013*

**math**

326
*May 27, 2013*

**Chemistry**

If 50 mL of a saturated solution of KClO3 at 55¡ÆC is cooled to 15¡ÆC, calculate the mass of precipitate that will form
*May 20, 2013*

**math**

What is 400=y+260
*April 30, 2013*

**statistics**

The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29. Find the probability that the mean GPA of a random sample of 20 students selected from this university is 2.87 or lower
*April 16, 2013*

**Algebra**

thanks
*April 15, 2013*

**Math**

theoretical. you find that it is 1/9 based on the number of possible outcomes
*April 9, 2013*

**science**

how do ear defneders work
*March 27, 2013*

**Physics**

Hahaha the person who asked this question in totally in my Physics for the Life Sciences course at UOIT. Assignment 2 ;)
*March 16, 2013*

**geometry**

a hexagonal pyramid has a base with and area of 25 in2 and is 7 in tall what is the volume of the pyramid rounded to the nearest whole number
*March 8, 2013*

**physics**

directly under
*February 20, 2013*

**chemistry**

second part of questions a and d are wrong
*January 11, 2013*

**Cheating?**

Umm you go to connections and you're asking for answers to a math test really. T_T cheating... You are asking for answers to Unit 6 lesson 9 Algebra readiness correct? Dont cheat.
*January 2, 2013*

**Chemistry**

c) liquid and Cu1.5Al
*December 13, 2012*

**social studies**

which tribe was is the largest and controlled the northeastern part of Florida
*November 15, 2012*

**Statistics**

LOL.
*October 10, 2012*

**7th grade math ms. sue please help**

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^Oh no!!! it's the homework police!! BAHAHAAH
*October 1, 2012*

**chemistry**

How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.20g of Na with H2O?
*September 29, 2012*

**lol**

lol
*August 29, 2012*

**Chemistry**

Err.. Dr Bob do we add the mass of CaCl2 with H2O? when we want to find m
*June 17, 2012*

**algebra**

The price of a pair of shoes is $63.20. The sales tax rate is 4.5 percent. How much sales tax would you pay if you bought these shoes?
*March 17, 2012*

**french**

le^ corrent de air
*March 17, 2012*

**math**

Whatis262.4%asafraction
*March 8, 2012*

**7th grade science**

what is the gravitational potential energy of a 0.1 kg apple sitting on a 12.5 m flagpole?
*February 7, 2012*

**math**

5. A couple plans to have 3 children. Find the possible ways the couple can have 3 children. - 1a3b+3a2b1+3a1b2+1 a0b3 1a3= 1 case with boy, boy, boy 3a2b1= 3 cases with 2 boys and a girl 3a1b2=3 cases with a boy and 2 girls 1b3= 1 case of girl, girl and girl.
*January 23, 2012*

**3rd grade math**

I think: it depends. If you round 73 and 7 then the estimate will be larger than the actual value(70*10=700 is larger than 73*7=511) if you on round 70 than the estimate will be smaller (70*7=490).
*November 29, 2011*

**Math- Trig please help!**

mori?
*November 29, 2011*

**lol**

please help me in math i dont get it at all so please help meeeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!math not good
*October 25, 2011*

**math**

5x-(2-4x) 8-3(6-6x) 9a-4(2a+5)
*October 22, 2011*

**history**

ajabanaka lopubjepeeeeeee . you're welcome
*September 19, 2011*

**trig**

348593489.1 and a half dur ta durrr.
*September 17, 2011*

**physics**

An airplane lands and starts down the runway at a southwest velocity of 48 m/s. What constant acceleration allows it to come to a stop in 1.5 km?
*September 11, 2011*

**statistics**

in a certain survey 1,043 adults, 81% reported having more than one television at home. find the actual number of respondents corresponding to the given percentage?
*September 6, 2011*

**statistics**

THis answer is wrong
*July 28, 2011*

**biology**

(Which of the following would least likely induce thirst) a)Dry pharynx b)Decrease blood volume c)decrease blood pressure d)decreased blood osmolarity
*July 22, 2011*

**chemistry**

find the maximum value of h2(g)in grams that would be expected to form by reacting 6.54g of zinc with 50ml of 0.1M of HCl.
*July 22, 2011*

**physics**

if W(a) and W(g) are workdone on a person by air resistance and gravity respectively, during the first 600m of his fall what is the relationship between W(a) and W(g)
*July 20, 2011*

**PHYSICS**

The answer is I,II,III,IV trust me.
*April 28, 2011*

**Math**

Four candidates are running for president of the student council. three other candidates are running for vice-president. how many different ways can the two offices be filled?
*April 19, 2011*

**statistics**

Wrong!
*April 15, 2011*

**science**

what is the procedure of starch?
*April 12, 2011*

**physics**

How far apart must two protons be if the electrical force of repulsion acting on either one is equal to its weight.
*March 14, 2011*

**physics**

4. What is the electric potential at the surface of a gold atom’s nucleus, which is assumed to be spherical? The radius of a gold nucleus is 6.6 x 10-15 meters and the atomic number of gold is 79.
*March 13, 2011*

**physics**

3. What is the magnitude of the electric field strength E such that an electron, when placed in the field, would experience an electrical force equal to its weight? What electric field strength E is required if the electron is replaced by a proton
*March 13, 2011*

**8th grade math**

858648648
*March 7, 2011*

**Physics**

ACTUALLY IT IS BECAUSE THE FINAL VELOCITY BECOMES THE INITIAL VELOCITY IN THE SECOND ECUATION AND VICEVERSA, SO IT SHOULD BE [18.25 - (-23)] / [.0016 s - 0s] , BECAUSE THE NEGATIVE V IS 23...
*February 25, 2011*

**Chemistry - Enthalpy change and stoichiometry**

lol
*February 23, 2011*

**Genetics**

I think a) is 0.26. b) if you take the 2-pr allele to be 'p' and the 3-pr allele to be 'q' then genotypic frequencies are p^2 for Xp2Xp2, 3^2 for Xp3Xp3 and 2(p)(q) for Xp2Xp3. so Xp2Xp2 = 0.55 Xp3Xp3 = 0.07 Xp2Xp3 = 0.19
*February 6, 2011*

**Algebra**

27/100
*January 10, 2011*

**English**

The final will be about comparing authors, not readings
*December 18, 2010*

**physics**

calvin and hobbes
*December 12, 2010*

**Physics**

who is john galt?
*December 9, 2010*

**Physics**

LMAO
*December 6, 2010*

**3rd grade**

estimated sum
*October 5, 2010*

**9th grade science**

lol
*September 8, 2010*

**chemistry**

2.39
*June 2, 2010*

**Chemistry**

never mind, just figure it out
*May 22, 2010*

**Chemistry**

for what works the 1.25L that they give you in the problem?
*May 22, 2010*

**science**

i have the same project.... :(
*May 16, 2010*

**Physics HELp**

lol idk
*March 31, 2010*

**geometry**

a kilometers b millimeters c centimeters d meters
*March 31, 2010*

**geometry**

which units would you most likely use to describe the difference in height between a cricket and a grasshopper
*March 31, 2010*

**calculus**

Determine all the absolute extreme values for the function f(x,y) = sin(x)*sin(y)*sin(x+y)on the square 0<x<pi, 0<y<pi
*March 28, 2010*

**Scientific studies**

1000m
*February 17, 2010*

**Oedipus The King**

Mr.V?
*January 26, 2010*

**physics**

fool
*December 14, 2009*

**operations managment**

good luck
*November 24, 2009*

**Algebra**

78569363.
*November 8, 2009*

**Pre-Algebra[URGENT]**

ur a noob
*May 26, 2009*

**Algebra Riddle**

Itstheendofthelion (its the end of the lion)
*April 30, 2009*

**science**

You are walking toward the back of a bus that is moving forward with a constant velocity. Describe your motion relative to the bus and relative to a point on the ground. if I am walking toward the back of the bus at the same velocity it is traveling,is it correct to say that ...
*April 29, 2009*