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2. Express the following in SI units a) 0.009 cm? b) 25 km​
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2. Express the following in SI units a) 0.009 cm? b) 25 km​

User Ankit Bindal
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Answer:

a).

S.I units of length is meters. So we've to change cm → m


{ \rm{1 \: cm \: \dashrightarrow \: 0.01 \: m}} \\ { \rm{0.009 \: cm \: \dashrightarrow \: (0.009 * 0.01)}} \\ \\ = { \underline{ \rm{ \: \: 0.00009 \: m \: \: }}}

b).

km → m


{ \rm{1 \: km \: \dashrightarrow \: 1000 \: m}} \\ { \rm{25 \: km \: \dashrightarrow \: (25 * 1000)}} \\ \\ = { \underline{ \rm{ \: \: 25000 \: m \: \: }}}

User Mjec
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