Zamien jednostki a) 250 N/m^2= hPa b) 3,6 m/s = km/h c)324 m/min^2= cm/s^2 d) 7J = Kj e) 25,5 kJ J

a) 250 N/m^2 = 250 Pa = 250 ∙ 0.01 hPa = 2.50 hPa b) 3.6 m/s = 3.6 ∙ (1/1000) km / (1/3600) h = 3.6 ∙ 3600/1000 km/h = 12.96 km/h c) 324 m/min^2 = 324 ∙ 100cm/(60s)² = 324 ∙ 100/3600 cm/s² = 9 cm/s² d) 7J = 7∙ 0.001 kJ = 0.007 kJ e) 25.5 kJ = 25.5 ∙ 1000J = 25 500 J