When I grew up my parents taught me a 3 second rule for safety from lightning bolts and to accurately estimate the distance of us playing kids to approaching thunderstorms? Why is that? When the kds in the streets were playing soccer at the schoolyard in Hoechstadt (Germany), our parents instructed us how to decide when we had to stop playing outside and get into the house. We had to stop when there was less than 15 seconds between lightning and thunder. Yes, even this question cannot successfully be answered without a clear drawing of the problem.a) Your instructor grew up in Germany with a 3s rule for thunderstorms. If you grew up here in the US you probably grew up with a 5s rule. Why is that? The units used in different countries might help you.b) How far did we predict the center of the thunderstorm to be away when we had just counted 15 seconds between lightning and thunder?c) How large was the difference of our prediction (in meters) compared to the real distance of the thunderstorm? Do you think we stopped playing? The speed of light is 3.0 x 108 m/s, and the speed of sound is 343 m/s.d) Whenever the weather looked like thunderstorms rolling in some kids where picked up by their parents (not without having to suffer through us other kids making fun of them for being sugar babies). We all remember and laugh about the routine of my friend Frederick’s mom - when she came by and had stopped her car, she always used the obnoxious horn of her red BMW to call for Frederick. We identified the signal having a frequency of 1034 Hz (we had some music geniuses in the group with absolute hearing). When she saw us chuckling at her belittled and beloved son she came blasting directly towards us tooting her car’s horn to teach us a lesson. Yes she did! We quickly determined the frequency we heard to be 1111 Hz and use that to calculate her speed. What was that speed? After she turned around and drove away with the same speed what frequency did we hear now? (No, it is not 957 Hz!)
When I grew up my parents taught me a 3 second rule for safety from lightning bolts and to accurately estimate the distance of us playing kids to approaching thunderstorms? Why is that? When the kds in the streets were playing soccer at the schoolyard in Hoechstadt (Germany), our parents instructed us how to decide when we had to stop playing outside and get into the house. We had to stop when there was less than 15 seconds between lightning and thunder. Yes, even this question cannot successfully be answered without a clear drawing of the problem.
a) Your instructor grew up in Germany with a 3s rule for thunderstorms. If you grew up here in the US you probably grew up with a 5s rule. Why is that? The units used in different countries might help you.
b) How far did we predict the center of the thunderstorm to be away when we had just counted 15 seconds between lightning and thunder?
c) How large was the difference of our prediction (in meters) compared to the real distance of the thunderstorm? Do you think we stopped playing? The speed of light is 3.0 x 108 m/s, and the speed of sound is 343 m/s.
d) Whenever the weather looked like thunderstorms rolling in some kids where picked up by their parents (not without having to suffer through us other kids making fun of them for being sugar babies). We all remember and laugh about the routine of my friend Frederick’s mom - when she came by and had stopped her car, she always used the obnoxious horn of her red BMW to call for Frederick. We identified the signal having a frequency of 1034 Hz (we had some music geniuses in the group with absolute hearing). When she saw us chuckling at her belittled and beloved son she came blasting directly towards us tooting her car’s horn to teach us a lesson. Yes she did! We quickly determined the frequency we heard to be 1111 Hz and use that to calculate her speed. What was that speed? After she turned around and drove away with the same speed what frequency did we hear now? (No, it is not 957 Hz!)
When I grew up my parents taught me a 3 second rule for safety from lightning bolts and to accurately estimate the dista
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