Halloween Newsletter

This was a magical time of year when I was a kid. All year our parents made us behave and act civilized, but on Halloween they dressed us up in weird outfits and sent us out into the streets to beg for candy!

These days, I get a kick sitting on my porch giving out candy and watching all the little kids in their costumes. (I still shake my head at the high schoolers that should have given this up years ago...)

In this newsletter, we have mostly treats for you but one potential trick. Read on!

Trick or Treat,

Professor Cram

And Then There Were Two...?

At first glance, the news that Thomson is selling their college textbook publishing business seems unlikely to be of much interest to the average college student. However, this may end up being the biggest and costliest trick you get this Halloween.
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Tricks and Treats to Studying

Just run a Google on how to study and you will find over 268 million entries all boasting theories or techniques for success. So what study habits are most effective?
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New Tutorial: Using the Periodic Table

All of our science textbooks have a Periodic Table in the front cover, but neglect to explain how to use the thing. If you take Astronomy, Biology, Chemistry, or any other science, you need to check this out.
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Ask Professor Cram: Two Cars Algebra Problem

Dear Professor Cram:

One automobile starts out from a town at 8am and travels at an average speed rate of 35mph. Three hours later a second automobile starts out to overtake the first. If the second automobile travels at an average rate of 55mph how long before it overtakes the first?

Holly F., Madison Area Technical College

Thank you for your interest in College-Cram, Holly, and thanks for your question.

Your question is a variant of the classic A train leaves Chicago going... question you see on tests like the SAT, but do not let that alarm you...
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Ask Professor Cram: Velocity Vectors

Dear Professor Cram:

An executive flew his corporate jet to a meeting in a city 1500 kilometers away. After traveling the same amount of time on return flight, the pilot mentioned that they still had 300 km to go. The air speed of the plane was 600 km/hr for both legs. Assuming that the wind direction was parallel to the flight path and constant all day, how fast was the wind blowing?

Ekta, Middlesex Community College

Ekta, thank you for this physics question involving vectors. Let us see how we can tackle it.
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Ask Professor Cram: Square Roots

Dear Professor Cram:

First I must tell you, that I am so happy to have found your site, it has given me hope that I can learn what I need to advance in my college studies. Here is my question: how do you find the square root of a radicand?

D. B., University of Louisiana

Thank you for your feedback, we love to hear from people we are helping.

To answer your question, there are a couple of ways of finding a square root without a calculator.
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