时间单位转换一写初二上学期的时间单位转换要用科学记数法的用科学记数法(1)2min=__________=____h(2)2h=_物理解答

时间单位转换
一写初二上学期的时间单位转换要用科学记数法的用科学记数法
(1)2min=__________=____h
(2)2h=__________=____min
2h=__________=____s
(3)30min=__________=____h
30min=__________=____s
(4)45min=__________=____h
(5)120s=__________=____min
120s=__________=____h
(6)1800s=__________=____h

人气：231 ℃　时间：2019-12-08 02:59:34

解答

(1)2min=2/60h=1/30h
(2)2h=2*60min=120min
2h=2*3600s=7200s
(3)30min=30/60h=0.5h
30min=30*60s=1800s
(4)45min=45/60h=0.75h
(5)120s=120/60min=2min
120s=120/3600h=1/30h
(6)1800s=1800/3600h=0.5h
这种题还要怎么写过程?.