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Oh NO! He Called My Bluff! :)

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Posted by Luis Hamburgh on November 18, 2001 19:34:53 UTC

Wow Alex,

Perhaps you’re not as crabby as I thought. Your reaction has made me laugh -- and shudder; I'm not sure my skills are 'up to it').

To find these formulas/formulae, I had to break out an old book, Fundamentals of Physical Science, by Krauskopf (hey, you stick with your Russians, I’ll stick with my Germans). Sorry I couldn't do it from memory alone, as you'd probably expect from your students.

As I worked through these problems I saw some potential for mistakes. For instance, I could only calculate the first one based on a constant acceleration up to one second, a condition your problem seems to neither require nor reject.

Anyway, if these are way off, then I suppose we’ll all have a good laugh…

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>”1) A sportsman whose mass is 70 kg jumps to the height 200 cm in 0.4 s. What power does he develop during the jump? (p.328)”>”2) Electric kettle with the resistance 100 ohm is connected to 220 V outlet. How much water is heated by it from 20 C to the boiling point in 20 min? (p. 332)”

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