Réponse:
on sait que
donc 3×10⁵km/s=1.5×10⁸km/temp
t=d/c
t=1.5×10⁸km/3×10⁵km/s
t=500s
t=8.33
car 60s→1min
500→?
500÷60=8min33s
ex2)
d=t×c
d=4h10min×3×10⁵km/s
d=250min×3×10⁵km/s
d=150000s×3×10⁵km/s
d=150000×300000km
d=4.5e10km
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Réponse:
on sait que
donc 3×10⁵km/s=1.5×10⁸km/temp
t=d/c
t=1.5×10⁸km/3×10⁵km/s
t=500s
t=8.33
car 60s→1min
500→?
500÷60=8min33s
ex2)
d=t×c
d=4h10min×3×10⁵km/s
d=250min×3×10⁵km/s
d=150000s×3×10⁵km/s
d=150000×300000km
d=4.5e10km