Saturday
September 20, 2014

Posts by Min


Total # Posts: 30

chemistry
will you please list a exsample
November 30, 2012

chemistry
A student measures the conductivity of a KNO3 solution and determines it to be a strong electrolyte. the student incorrectly lists the species in solution as KNO3,K+, NO3. Give the correct list of species in solution? Please help I am lost
November 30, 2012

chemistry
I need the pre lab anwsers to 22, I have been studying for a test and have not finished them
November 30, 2012

Physics
Yes, it does have to do with the weight distribution. I'm confident with the 4.29 so up to here is all I need. Thank you for your help!
November 27, 2012

Physics
So for the equation for the total, would this be correct? (100)(4.29)cos30 - (90)(x)cos30 + (114)(6)sin30 = 0
November 27, 2012

Physics
A 90N dog climbs up a non-uniform (lambda = Cx^(3/2)), 100N ladder. The top of the ladder rests on the top of a frictionless fence that is 3m high and forms a 30 degree angle with the ground, which is rough and has a coefficient of friction of 0.60. How far up the ladder can ...
November 27, 2012

physics
Gotcha, thank you!
November 15, 2012

physics
A NON-UNIFORM board of length L and mass M has a center of mass at 5/6L. If the fulcrum is placed at the center of the board and a block of mass m is placed at the right of the board, then where must a block of mass 3m be placed to balance the board? I assumed new variables ...
November 15, 2012

Pre- Cal
How long, to the nearest year, will it take me to become a millionaire if I invest $1000 at 10% interest compounded continuously? I got 70 years, but it is wrong. I used the P (1+ (r/m))^mt Thank you.
February 27, 2012

math
Your brother traveled 117 miles in 2.25 hours to come home for christmas. What' the average speed that he was traveling?
December 1, 2010

math correct or not correct
10 1/2 - 8 5/8 = 21/2 - 69/8 Take L.C.M = 8 84 - 69 /8 = 15/8 = 1 7/8 or 1.8
October 20, 2010

grammer
E. no one's surprise is the correct one
October 20, 2010

number patterns
1st day = 4 2nd day = 8( double of 4) 3rd day = 16 ( double of 8)
October 20, 2010

English grammar
It is a relative adverb. .Whether a "wh-word" functions as a relative pronoun or a relative adverb is determined by its function in the subordinated relative clause.
October 20, 2010

science
In an experiment a variable can change.
October 19, 2010

science
Food, shelter, water and air
October 19, 2010

Physic
A car starts from rest on a curve with a radius of 160 and accelerates at 1.40 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.70 ?
October 12, 2010

Physic
A car starts from rest on a curve with a radius of 160 and accelerates at 1.40 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.70 ?
October 12, 2010

math
Suppose that f(t)is a function for which f(80)=8.7and f'(80)=-2.2. Use this information to estimate the following. Round your answer to one decimal place. f(80-1)
October 5, 2010

History US
like what are the pros and cons?
December 3, 2008

History US
What was Hamilton's economic plan..? why didnt people like it?
December 3, 2008

algebra- integer problems
whoops... hehe sorry. I forgot about the "pluging in" :D thanks for the help
November 14, 2007

algebra- integer problems
Hi! i have this problem, I'm stuck on. it says find 2 consecutive multiples of 9 whose sum is -153. I started of my saying the 1st number is 9x and the 2nd is 9x+9. I continued on to get, 9x+(9x+9)=-153 and solved it. I got an irrelevant answer: -9. I was wondering what I ...
November 14, 2007

debate
1. In your experience, is Christmas “taboo” in public schools? How is Christmas treated at your school? Do you think your school has gone too far to be politically correct during the holidays? 2. Do you think there really is a “war on Christmas?” Cite an ...
August 20, 2007

Algebra
How would you prove this theorem: The column space of an m x n matrix A is a subspace of R^m by using this definition: A subspace of a vector space V is a subset H of V that has three properties: a) the zero vector of V is in H. b) H is closed under vector addition. c) H is ...
June 19, 2007

Energy
174520 = (massboiled) (2260) .1716 = massboiled so .1716? Suppose a burner transfers 325 kJ of energy to 450 kg of liquid water at 20 C degrees. What mass of the water would be boiled away? The first energy going in heats the water: energy=mass*c*(100-20) Then subtract that ...
December 17, 2006

Lead Chloride
Is the empirical lead chloride formula Pb2Cl or PbCl2? http://en.wikipedia.org/wiki/Lead(II)_chloride
December 15, 2006

Chem
How many chlorine atoms are in 5.0 g of C2H3Cl3O2? What mass of C2H3Cl3O2 would contain 1.0g Cl? There are 6.02 x 10^23 atoms in a mole of anything. Calculate the molar mass of your compound, that mass will contain 6.02 x 10^23 molecules of that material (whatever it is), then...
December 9, 2006

Chloral Hydrate
What is the molar mass of chloral hydrate and how many moles of C2H3Cl3O2 molecules are in 500 g chloral hydrate. Also, what is the mass in grams of 2.0 x 10^-2 mol chloral hydrate? Molar mass? You can add them up. Starting at the left, 2 carbons, three H, three Cl, two O. The...
December 5, 2006

Physics
A bullet is fired horizontally from the roof of a building 100 meters tall with a speed of 850 m/s. Neglecting air resistance, how far will the bullet drop in 3 seconds? 1 29.4 m 2 44.1 m 3 100 m 4 2550 m Answer should be choice 2) 44.1m BUT I DON'T GET IT! Please help me...
November 21, 2006

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