"the wave" is a particular type of pulse that can
propagatethrough a large crowd gathered at a sports arena to watch
a socceror american football match. the elements of the medium
arespectators, with zero position corresponding to their being
seatedand maximum position corresponding to their standing and
raisingtheir arms. when a large fraction of the spectators
participate inthe wave motion, a somewhat stable pulse shape can
develop. thewave speed depends on people's reaction time, which is
typically onthe order of 0.1s. estimate the order of magnitude, in
minutes, ofthe time required for such a pulse to make one circuit
around alarge sports stadium. state the quantities you measure or
estimateand their values.
Answers: 1
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Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?
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Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.
Answers: 3
Physics, 22.06.2019 13:00
4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?
Answers: 1
"the wave" is a particular type of pulse that can
propagatethrough a large crowd gathered at a...
propagatethrough a large crowd gathered at a...
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