Question 115(vi)
Express the following in standard form: Express 5 tonnes in g.
5 tonnes=5×1000 kg [∵1 tonne=1000 kg] =5×1000×1000 g [∵1 kg=1000 g] = 5×1000000 g =5×106 g
Question 115(viii)
Express the following in standard form: Express 5 hectares in cm2.(1 hec=10000 m2)
Question 115(iii)
Express the following in standard form: Mass of a molecule fo hydrogen gas is about 0.00000000000000000000334 tonnes.
Question 115(vii)
Express the following in standard form: Express 2 yr in seconds.