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joelpimentel
17.07.2019 •
Physics
Astone dropped from the root of a high buliding . a second stone is dropped 1.30 s later how far apart are the stones when the second one has reached a speed of 14.0 m/s
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Ответ:
The stones are apart one each the other 26.37 meters when the second one has reached a speed of 14 m/s.
Explanation:
Second Stone:
Vb= g*t
tb (14m/s)= Vb/g
tb (14m/s)= (14 m/s) / (9.8 m/s²)
tb (14m/s)= 1.42 sec
Hb= (g * tb²)/2
Hb= 9.88m
First Stone:
ta= tb + 1.3 sec
ta= 2.72 sec
Ha= (g*ta²)/2
Ha= 36.25m
Distance between Stones:
Ha-Hb= 36.25m - 9.88m
Ha-Hb= 26.37m
Ответ:
The photon striking the atom is moving too fast.
Explanation: