Friday
July 25, 2014

Posts by Yu


Total # Posts: 26

Maths
2/5 of the boys don't know how to swim, so 2/5 * 1/3= 2/15 of the total people are boys who cannot swim. Likewise for girls, 3/5 * 2/3= 6/15 of the total people are girls who cannot swim. Thus, 1- 2/15 - 6/15= 7/15 of the total people are swimmers. Thus, there are 490 swim...

Math
Parametrically represent a Mobius strip. Since I am very unfamiliar with this topic, Math jargon should appear as little as possible and please provide step by step working.

Math logarithms
The graph, y=lg x is rotated 90 degrees anticlockwise around the origin. What is the equation of the new graph? Please provide proof.

Chemistry
Which method(High Performance Liquid Chromatography or Gas Liquid Chromatography) would be suitable for the separation of the following mixtures? 1) Mixture of paracetamol, codeine and caffeine. 2) Mixture of alpha-pinene, beta-pinene, eucalyptol, alpha-terpineol. Please expla...

Chemistry
How is the high performance liquid chromatography column designed to ensure greater efficiency?

Chemistry
How can reaction intermediates in an organic synthesis be separated and recovered using thin layer chromatography?

Engineering
Thanks simonsay, in q1_2_1: 300 is wrong for me, is there maybe a -300?

Engineering
Trustee thanks the first two answers right but third one is wrong, can you check please?

Physics
Can someone explain with values for I = dQ/dt please?

Physics
BoobleGum, what is the value for U please?

Physics
Please HW4_2: Part I?

Physics
Help!

Physics
Help!

math
In a manufacturing process, each item leaving an assembly line will be examined by two inspectors: A and B individually. Based on past experiences, Inspector A detects 60% of the defective items. If the defective items are not detected by Inspector A, 90% of them will be detec...

Quantum Physics
Help!

Quantum Physics
Help please!

Quantum Physics
Help Please!

statistics help please!
maximize p = 2x+3y subject to 1.25x+y<=100 x+y>=30 x<=50 y<=75 x>=0 y>=0) graphic method for linear programing

Computer Science
I need some help about Turing Machines, and prove by reductions. Here are the 2 questions: 1. Sketch the construction of a Turing Machine that decides the language L = a^i where i is not prime. 2. Show that the language 2Strings is not recursive by reducing any one of the two ...

English
foop

statistics
jhvhn

calculus
Tower 1 is 90 ft high and tower 2 is 40 ft high. The towers are 200 ft apart. A guy wire is to run from point A to the top of each tower. [See a picture of this situation on page 274 of the textbook.] How many feet from tower 1 should point A be so that the total length of guy...

Calculus
Use Chain Rule 1=cos(xy^2)(y^2+2xyy') 1=cos(xy^2)y^2+(2xy)cos(xy^2)(y') [1-cos(xy^2)y^2]/[(2xy)cos(xy^2)]=y'

english
can anyone give me a thesis statement on conscience in hamlet. pls

Economics(12 Multiple Choice)
uy

literature
An effort to bring civilization with them... I just took the test. This answer is 100% correct, I promise!

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