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The first thing we saw was some points taken off for answers on a test because they were not in the right range. It would seem like there should be multiple answers for something like arccos(1/2), …
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Circuits Complex Analysis Equation Simplification
You want a common denominator to simplify things. I replaced jw x 10^-5 with the variable X, so I didn't have to write it as many times. You can factor out a term later on that cancels. 10^5 * …
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Tutoring Physics, some basics about circuits
We looked at circuits with resistors. Saw current, voltage, and resistance. The circuits included branches. Current is the flow of electrons. Electrons have a negative charge. Used Ohm's law, V = IR …
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Circuit Branch with Resistors, Crocodiles and Spock
Made this video as an analogy for circuit branches with resistors. …
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“How cold would a sphere of silver with a radius of 5 meters be in order to freeze the ocean upon contact?”
Short answer is "no". There is a lower limit to how cold something can be, absolute zero. It looks like the specific heat of silver is 0.233 J/gm K ( at 20 C). Let's say it stays that value …
“What are some tips on how to solve Integration problems using U-Substitution?”
Question from Quora There are basically two terms here, the 5x and the 1- x^2 in parentheses. The general idea for u-substitution is to make u something that when you take the derivative of it can …