March 25, 2017

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Posts by Homer

Total # Posts: 10

November 14, 2015

June 4, 2014

In one type of mass spectrometer, ions having the same velocity move through a uniform magnetic field. The spectrometer is being used to distinguish 12C+ and 14C+ ions that have the same charge. The 12C+ ions move in a circle of diameter 25 cm. (a) What is the diameter of the ...
April 12, 2014

A 2.6x10^3 kg elevator carries a maximum load of 888.1 kg. A constant frictional force of 4.9x10^3 N retards the elevator's motion upward. The acceleration of gravity is 9.81 m.s^2. What minimum power must the motor deliver to lift the fully loaded elevator at a constant ...
December 11, 2011

a) Identify the base in the following statement b) Solve for the amount. What is 81% of 285
April 26, 2011

April 25, 2010

P C 5 3 6 4 This the best I can reproduce it, but P and C have a black dot in between which means they are multiplied by each other.
March 30, 2010

math - probability
An astronomer wishes to measure on a photograph the distance between the image of a certain star and three other star images nearby. If eight images are nearby, how many choices of the three stars does he have?
March 30, 2010

8(x+4)^2= -9
January 14, 2010

What is eubacteria's enrgy source? Source? It is simple sugars. ,kj
January 11, 2007

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