Wednesday
June 19, 2013

# Posts by Ryan

Total # Posts: 802

Math
Trang has a paper for an art project that is 7 inches wide and 9 inches long. She wants to decorate it with a piece of string. How much string would she need to go around the perimeter?

Physics
I just had to look up the answer, as I couldn't figure it out either. Turns out it is rather simple. You need to add the two together and multiply by n=10^5, but only half of the bonds come from each type of base pair so you need to divide the final result by two to get th...

Physics
A guitar string has a tension of 100 N and is supposed to have a frequency of 110 Hz. When a standard tone of that value is sounded while the string is plucked, a beat frequency of 2 Hz is heard. The peg holding the string is loosened (decreasing the tension) and the beat freq...

math
Explain how you can use multiplication to find the perimeter of a square

Chemistry
The term mole is used in chemistry to define an amount of a substance. For example, a mole of glucose, blood sugar, weighs 180.16 grams. A common concentration unit for solutions is moles of substance per liter of solution. We abbreviate this with the symbol M. For example, 0....

Chemistry
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 155 cal/g. The scientist observing the extraterrestrial life form also beg...

Math
How many total faces,edges, vertices does a square pyramid have?

English
Explain,in your own words, why the following sentence is a thesis statement, a story, or a topic. Computers allow students to learn better.

Math
A music CD has a diameter of 4 inches. What is the radius? Explain your thinking.

Math
Juan says the diameter of circle with a radius of 8 inches is 4 inches. What is his error? What is the correct diameter?

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