Odpowiedź:
Wyjaśnienie:
v=7 m/s=7*1/1000 :1/3600 km/h=7/1000*3600 km/h=7*3,6 km/h=25,2 km/h
v=30 m/s=30*1/1000 :1/3600 km/h=30/1000 *3600 km/h=30*3,6 km=108 km/h
v=7,9*10^3 m/s=7,9*10^3*10^-3 :1/3600 km/h=7,9*3600 km/h=28440 km/h
v=7,9*10^4 m/s=7,9*10^4*10^-3 :1/3600 km/h=79*3600 km/h=284 400 km/h
v=2,19*10^6 m/s=2,19*10^6*10^-3 :1/3600 km/h=2,19*10^3*3600 km/h=2,19*10^3*3,6*10^3 km/h=(2,19*3,6)*10^6 km/h=7,884*10^6 km/h
[tex]1 \ km = 1000 \ m \ \ \rightarrow \ \ 1 \ m = \frac{1}{1000} \ km\\\\1 \ h = 3600 \ s \ \ \rightarrow \ \ 1 \ s = \frac{1}{3600} \ h[/tex]
[tex]b) \ v = 7\frac{m}{s} = \frac{\frac{1}{1000} \ km}{\frac{1}{3600} \ h} =7\cdot3,6\frac{km}{h} = 25,2\frac{km}{h}\\\\c) \ 30\frac{m}{s} = 30\cdot3,6\frac{km}{h} = 108\frac{km}{h}\\\\d) \ v = 7,9\cdot10^{3}\frac{m}{s} = 7,9\cdot10^{3}\cdot3,6\frac{km}{h} = 28,44\cdot10^{3}\frac{km}{h} = 2,844\cdot10^{3}\frac{km}{h} = 28440\frac{km}{h}\\\\e) \ v = 7,9\cdot10^{4}\frac{m}{s}=7,9\cdot10^{4}\cdot3,6\frac{km}{h} = 28,44\cdot10^{4}\frac{km}{h} = 2,844\cdot10^{5}\frac{km}{h} = 284400\frac{km}{h}[/tex]
[tex]f) \ v = 2,19\cdot10^{6}\frac{m}{s} = 2,19\cdot10^{6}\cdot3,6\frac{km}{h} = 7,884\cdot10^{6}\frac{km}{h} = 7884000\frac{km}{h}\\\\g) \ c = 3\cdot10^{8}\frac{m}{s} = 3\cdot10^{8}\cdot3,6\frac{km}{h} = 10,8\cdot10^{8}\frac{km}{h} = 1,08\cdot10^{9}\frac{km}{h} = 1080000000\frac{km}{h}[/tex]
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Odpowiedź:
Wyjaśnienie:
v=7 m/s=7*1/1000 :1/3600 km/h=7/1000*3600 km/h=7*3,6 km/h=25,2 km/h
v=30 m/s=30*1/1000 :1/3600 km/h=30/1000 *3600 km/h=30*3,6 km=108 km/h
v=7,9*10^3 m/s=7,9*10^3*10^-3 :1/3600 km/h=7,9*3600 km/h=28440 km/h
v=7,9*10^4 m/s=7,9*10^4*10^-3 :1/3600 km/h=79*3600 km/h=284 400 km/h
v=2,19*10^6 m/s=2,19*10^6*10^-3 :1/3600 km/h=2,19*10^3*3600 km/h=2,19*10^3*3,6*10^3 km/h=(2,19*3,6)*10^6 km/h=7,884*10^6 km/h
[tex]1 \ km = 1000 \ m \ \ \rightarrow \ \ 1 \ m = \frac{1}{1000} \ km\\\\1 \ h = 3600 \ s \ \ \rightarrow \ \ 1 \ s = \frac{1}{3600} \ h[/tex]
[tex]b) \ v = 7\frac{m}{s} = \frac{\frac{1}{1000} \ km}{\frac{1}{3600} \ h} =7\cdot3,6\frac{km}{h} = 25,2\frac{km}{h}\\\\c) \ 30\frac{m}{s} = 30\cdot3,6\frac{km}{h} = 108\frac{km}{h}\\\\d) \ v = 7,9\cdot10^{3}\frac{m}{s} = 7,9\cdot10^{3}\cdot3,6\frac{km}{h} = 28,44\cdot10^{3}\frac{km}{h} = 2,844\cdot10^{3}\frac{km}{h} = 28440\frac{km}{h}\\\\e) \ v = 7,9\cdot10^{4}\frac{m}{s}=7,9\cdot10^{4}\cdot3,6\frac{km}{h} = 28,44\cdot10^{4}\frac{km}{h} = 2,844\cdot10^{5}\frac{km}{h} = 284400\frac{km}{h}[/tex]
[tex]f) \ v = 2,19\cdot10^{6}\frac{m}{s} = 2,19\cdot10^{6}\cdot3,6\frac{km}{h} = 7,884\cdot10^{6}\frac{km}{h} = 7884000\frac{km}{h}\\\\g) \ c = 3\cdot10^{8}\frac{m}{s} = 3\cdot10^{8}\cdot3,6\frac{km}{h} = 10,8\cdot10^{8}\frac{km}{h} = 1,08\cdot10^{9}\frac{km}{h} = 1080000000\frac{km}{h}[/tex]