Phys 87: Problems for Thinking Like a Physicist
Winter quarter, 2015
- How many kids are laughing so hard right now that milk
(or cultural equivalent) is streaming from their noses?
- How many parking spot painters must UCSD employ to keep the spaces
and associated deisgnations painted and in good shape?
- What is the metabolic power (in Watts) of a human being?
- How fast can a human cycle (flat and on hills; drag problem)?
- What is the daily breathing mass loss of a human?
- How many miles per gallon do we expect a car to get?
- How many barrels of oil are consumed daily in the United States?
- At some constant growth rate in energy, how long before we would consume all the power from all the stars in the Milky Way galaxy?
- Lots of great problems on estimating energy resources (solar, wind, hydroelectric)
- How much area does a rooftop PV array have to be to satisfy the average household demand; how much will it cost; how long to break even with utility payments?
- How much energy does each 2-liter bottle of water/soda take to transport
it across typical distribution distances?
- How long does it take to boil and egg or cook a turkey?
- How much energy (or really, power) does it take to heat a home?
- More to come!
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