Physics, 21.07.2020 14:01 MayFlowers
On a 100km track , a train travels the first 30km with a speed of 30km/h . How fast the train travel the next 70 km if the average speed for the entire journey is 40km/h?
Answers: 2
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Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .
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Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4βΆ14βΆ1 transition. =Ξ»=
Answers: 2
On a 100km track , a train travels the first 30km with a speed of 30km/h . How fast the train travel...
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