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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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The length and width of a rectangular room are measured to be\({\bf{3}}.{\bf{955}}{\rm{ }} \pm {\rm{ }}{\bf{0}}.{\bf{005m}}\)and \({\bf{3}}.{\bf{050}}{\rm{ }} \pm {\rm{ }}{\bf{0}}.{\bf{005m}}\). Calculate the area of the room and its uncertainty in square meters.
(a) Write the complete伪 decay equation for226Ra. (b) Find the energy released in the decay.
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.
Using approximate values, calculate the slope of the curve in Figure 2.62 to verify that the velocity at t= 30 sec is 0.238 m/s. Assume all values are known to 3 significant figures
One way to force air into an unconscious person鈥檚 lungs is to squeeze on a balloon appropriately connected to the subject. What force must you exert on the balloon with your hands to create a gauge pressure of\[{\rm{4}}{\rm{.00 cm}}\]water, assuming you squeeze on an effective area of\[{\rm{50 c}}{{\rm{m}}^{\rm{2}}}\]?
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