Total # Posts: 489
A student determined the calorimeter constant of the calorimeter. The student added 50.00 mL of cold water to 50.00 mK of heated , distilled water in a styrofoam cup. The initial temp of the cold water was 21,00C and the hot water, 29.15C. The maximum temp pf the mixture was ...
March 3, 2010
The general relationship of oscillation T of a mass m suspended on a spring is T=2(pie)square root of m/k, where k is the spring constant. how would i change this equation into a straight line equation to graph?
January 25, 2010
Of COURSE it is! I'm in 6th grade too and that sounds great. Don't worry about it ^_^ Just do it and forget what other people think. All you have to do is make it accurate and well done. Your teacher won't judge you for childness. Just the quality of your work.
November 16, 2009
I am dealing with Interest Compounded Continuosly. I am looking for the balance after 10 years. The book shows that P(10) = 2oooe^0.08(10) = 2000e^0.8 = $4451.08 My questions is how do you calculate 2000e^o.8 and end up with 4451.08?
August 8, 2009
Solve X + 1/x 2 ≥ 3 I know you have to subtract the 3 from both sides to get the zero on right of the inequality sign. I don't understand how to make one fraction after I do this.
July 26, 2009
I'm working on vertical asymptotes when factoring 6x^2 - 6 (denominator). I came up with 6(x^2-1). Then I was trying to find the zeros of the denominator but 6 does not = 0 and x^2-1=0 then I got x^2=1 and x = plus or minus sqrt 1. Can you tell me what I am doing wrong?
July 25, 2009
Please help! Thanks. An ammonia solution is made by diluting 0.105L of the concentrated commercial reagent until the final volume reaches 1.00L. What is the final molar concentration?
July 19, 2009
It is found that 99% of a particular design of sport parachute have k-values greater than or equal to 1.650/s. If the mean value of k is 1.730/s, determine, to the nearest thousandth, the standard deviation of the distribution of k-values. Help, thank-you!
June 2, 2009
Okay, relevant equations: v(subscript)t=g/k or k=g/v(subscript)t My attempt at the soloution, honestly, I have no clue, me and a friend have attempted this question and we still cannot figure it out. Please help me, I am totally lost.
June 1, 2009
For beginner parachutists, the terminal velocity must be less than 5.00 m/s, and the parachutes used have a k-value that is normally distributed with a mean of 2.05/s and a standard deviation of 0.04/s. If the acceleration due to gravity is 9.81 m/s^2, determine the ...
June 1, 2009
The equation describing the velocity of the ice falling from the wing as a function of time is v=45(1-(0.804)^t). Determine algebraically the time required, to the nearest tenth of a second, for the ice to reach a velocity of 98% of its terminal velocity of 45 m/s. (v=velocity...
June 1, 2009
I asked this question yesterday, but I am still having alot of trouble, can someone please help me. Thanks. If 1-cos^2x=0.8725, and x is acute, determine the value of x correct to the nearest tenth of a degree.
April 19, 2009
Sorry i didn`t reply sooner ive only just looked at the post.Thankyou so much for finding the images it was kind of you to use the time you had spare to help me. thanks again:)
March 29, 2009
Behavioral analysis and diagnosis of medical conditions used in the DSMIII such as schizophrenia, bipolar, add, and depression .... Various medications have effetively allowed people to live close or close to normal lives by equalizing biological imbalances : ).
January 20, 2009
Two students were testing the amount of fertilizer that would best promote the growth of strawberries in a garden. Which of the following could be an unavoidable source of experimental error? A. length of the study B. variation in the strawberry plants C. the cost of watering ...
April 28, 2008
Please show us were to put the commas in the following sentance: Athens a city in greece named after Athena the Greek Goddess of war and wisdom. This how the sentance was given to my daughter by the Teacher. My daughter tried to dispute the validity of this not only being a ...
April 7, 2008
write below the complete ionic equation for the reaction of magnesium phosphate with lead(II)nitrate. Include which ions will be aqueous and which compound will precipitate. I understand how to balance the equation, but the example they give me is completely different from the...
November 27, 2007
Does anyone know how to solve these two problems. Solve the problem. Find the critical value za/2 that corresponds to a degree of condfidence of 98%. Express the confidence interval in the form of ^p _+E. 0.033<p>0.493
August 28, 2007
what is a number model? Since this is not my area of expertise, I searched Google under the key words "number model" to get these possible sources: http://www.minet.uni-jena.de/~novak/model.html http://18.104.22.168/search?q=cache:Jv_3THbD6vIJ:andean.kulture.org/owen...
February 27, 2007
how do i change x^2-4x-32=0 into (x+4)(x-8)=0 x^2-4x-32=0 => x^2-8x+4x-32=0 => x(x-8)+4(x-8)=0 => (x-8)(x+4)=0 OR (x+4)(x-8)=0 X2 -4x -32 = 0 JUst factor it. It factors into (X-8)(X+4)=0
December 21, 2006
what is the lense in the eyepiece of a microscope called? I thought it was just called a lens. However, since this is not my area of expertise, I searched Google under the key words "microscope parts eyepiece" to get these possible sources: http://www.microimaging.ca...
November 28, 2006
math (unit rate)
how would i get the answer to this problem-$1.60 for 8 rolls? I think you are asking how much it would be for 1 roll. If it is $1.60 for 8 rolls, you need to divide this my 8 to get the price for 1 roll. 5y6y67
October 22, 2006
is 765/2023 simplified?!!? I think it is. Nope, it isn't, 765 = 32*5*17 check the divisor of 765 into 2023 what do you mean What do you mean?Your making it more difficult for her! What am I making difficult here? All we need to do is find the factorization of one of the ...
October 19, 2006
which act upset the conolists because it was a direct tax on the colonies? wouldn't it be the stamp act??? http://www.nps.gov/revwar/about_the_revolution/timeline_of_events.html why did the colonists go to war with britain.
October 19, 2006
What is the uses a ribosome? wouldn't it be to feed the copy of DNA and to make proteins out of amino acids. What is an amino acid made of and what is it's uses? wouldn't that one be it is made of three bases and it is used to make proteins. sorry the first ...
October 18, 2006
1)the seond Continental Congress did all the the following except a)approve a ban on exports and imports with Great Britain. B)appoint George Washington military commander. 2)the first contnental congress did all the following except a)create a colonial army and appoint George...
October 18, 2006
i need to know how to convert liters to decimeter and all of that by tomorrow.like for instance one of the questions on my homeowrk says write the letter of the equation that expresses an equal value.a)1L=1 dm b)1L=1cm cubed.so which on would it be? pleasse help me!!!! 1 liter...
August 16, 2005