Chapter 1: 36 PE (page 11)
Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second?
Maximum firing rate of nerve impulse per second 1031/sec
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A short circuit in a\(120{\rm{ }}V\) appliance cord has a \(0.500{\rm{ }}\Omega \) resistance. Calculate the temperature rise of the \(2.00{\rm{ }}g\) of surrounding materials, assuming their specific heat capacity is and that it takes \(0.0500{\rm{ }}s\) for a circuit breaker to interrupt the current. Is this likely to be damaging?
A car engine moves a piston with a circular cross-section of\({\bf{7}}.{\bf{500}}{\rm{ }} \pm {\rm{ }}{\bf{0}}.{\bf{002}}{\rm{ }}{\bf{cm}}\)diameter a distance of\({\bf{3}}.{\bf{250}}{\rm{ }} \pm {\rm{ }}{\bf{0}}.{\bf{001}}{\rm{ }}{\bf{cm}}\)to compress the gas in the cylinder. (a) By what amount is the gas decreased in volume in cubic centimeters. (b) Find the uncertainty in this volume.
The sides of a small rectangular box are measured to be \({\bf{1}}.{\bf{80}} \pm {\bf{0}}.{\bf{01}}{\rm{ }}{\bf{cm}}\), \({\bf{2}}.{\bf{05}} \pm {\bf{0}}.{\bf{02}}{\rm{ }}{\bf{cm}}\), and \({\bf{3}}.{\bf{1}} \pm {\bf{0}}.{\bf{1}}{\rm{ }}{\bf{cm}}\) long. Calculate its volume and uncertainty in cubic centimeters
A can contains 375 mL of soda. How much is left after 308 mL is removed?
Question: How many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of a human? (Hint: The lifetime of an unstable atomic nucleus is on the order of\({\bf{1}}{{\bf{0}}^{ - {\bf{22}}}}{\rm{ }}{\bf{s}}\).
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