Wednesday
November 26, 2014

Posts by amalia


Total # Posts: 12

Physics
Calculate the coulomb force on q. They are all in a straight line q1, q2,q3. Q1:1.05 micro coulombs Q2:5.51 micro coulombs Q3:-2.15 micro coulombs The distance, r1, between q1 and q2 is 20.1cm. The distance, r2, between q2 and q3 is 15.3 cm. Also, calculate e coulomb force on q2
July 9, 2013

Physics
What is the electric field at a point midway between a -7.34 micro coulombs and a +4.49 micro coulombs charge apart 31.5m apart?
July 9, 2013

Physics
we have a test coming up and I cannot figure out the practice question. Can somebody please help? Aaron throws a 7.5 kg bowling ball by applying a 45 N force for a time of 0.90seconds. What is the impulse Aaron applies to the ball? What is the ball's speed at the end of ...
June 21, 2013

math
How do I set up the quadratic equation for this problem? 4.0= (2x)^2 / (1.0-x)(1.0-x) I know how to use the formula, but I have a hard time setting those equation to zero. Please explain step by step. Thank you
May 14, 2013

Chemistry
A Cu/Cu^2+concentration cell has a voltage of 0.22v at 25 C. The concentration of Cu^2+ in one of the half cells is 1.5x10^-3 M. What is the concentrate of Cu^2+ in the other half cell? I think I will have to use Nernst equation, but I am so stuck! please help. Thank you so much.
April 30, 2013

calculus
Find the critical point(s) of the function. Then use the second derivative test to classify the nature of each point, if possible. Finally, determine the relative extrema of the function f(x,y)= 3x^2 - 3e^5y^2
March 15, 2012

calculus
Find the critical point(s) of the function. Then use the second derivative test to classify the nature of each point, if possible. Finally, determine the relative extrema of the function. f(x,y)=3x^2 - 3xy + 3y^2 +5
March 15, 2012

algebra
0+3 on the bottom Sorry
May 25, 2011

algebra
The slope formula is Y2-Y1 over X2-X1 Therefore, it would be 6+8 on top, and 0-3 on the bottom.
May 25, 2011

Chemistry
Mercury, with a freezing point of -38.8°C, is the only metal that is liquid at room temperature. How much heat energy (in joules) must be released by mercury if 1.30 mL of the metal is cooled from room temperature (18.0°C) to -38.8°C and then frozen to a solid? (...
May 25, 2011

Office Finance
Each day's receipts can be kept separate by, a.preparing a deposit slip for each day's receipts, b. reconciling the bank statement c.listing the ABA numbers d.making daily bank withdrawals
November 6, 2009

3rd grade
what ever manger lser
October 8, 2008

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