October 6, 2015

Posts by sue

Total # Posts: 913

the big idea of energy
If it's any comfort to anyone I have a PhD in physics and I have never heard of the Big Idea of Energy either!
December 5, 2006

Males make a mean of 531 on math SAT with standard deviation of 114. Minimum 600 score. what's the % of males that don't satisfy this requirement? Pregnancies usually distributed mean of 268 days and standard distribution 15 days. Baby born three week premature at ...
December 5, 2006

Using standard deviation. Normally distributed mean of 0 degrees standard deviation of 1.00 degrees celcius. 1. between 0 and 1.28 2. greater than 0.37 3. less than -0.92 4. between 1.50 and 2.50 5. between -0.90 and 1.95 6. less than 0 I don't know how to solve these ...
December 5, 2006

Find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses re made and each question has 6 possible answers. My answer is 1/36 Assume that the data has a normal distribution and the number of observations is greater than 50. ...
December 4, 2006

algebra 1
the sum of a & b is twice as big as n That statementcan be written as the equation (a+b) = 2 n Are there any more parts to your question? It is not possible to say what a, b or n is, exactly. The equation is a relationship between the three numbers.
November 13, 2006

What is the differecne between a weaseler and a downplayer. Since this is not my area of expertise, I searched Google under the key words "weaseler downplayer" to get these possible sources: http://military.coastline.edu/classes/philosophy115/lessons/chapter4lesson8-...
October 19, 2006

What learning resources are avavilable over the Internet? http://www.google.com/search?hl=en&lr=&as_qdr=all&q=+%22learning+resources+available+on+the+Internet%22
September 20, 2006

What sources can users learn more about computers? Since you have a computer and access to the internet, you should use search engines to narrow your quest for information.
September 20, 2006

How do you know the state of an element or compound when writing chemical equations? Unless otherwise known, assume the state of the element at room temp. Here is the real problem. For aqueous compounds, ie, compounds dissolved in water, you have to have that given. There is a...
September 16, 2006

Distinguish between table salt dissolving in water and sugar dissolving in water. The formula for table sugar is C12H22O11. It freely dissolves in water as the sugar molecules; i.e., it is in solution as C12H22O11. On the other hand, table salt is NaCl. When it dissolves in ...
September 11, 2006

Personal Finance
compare a reular cash dividend with a periodic share repurchase
August 1, 2006

sound waves
What a vibrating object dose to the air particles around it? It makes them move...creating pressure waves that propagte thru the air, which we detect as sound if it is in the "sound" frequency wave
June 16, 2005

what a vibrating object dose to the air particles around it? The vibrating object sends out a pressure-variation (sound) wave of compressions and rarefactions, with a frequency equal to the vibration rate.
June 16, 2005

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