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aleksandr82 [10.1K]
2 years ago
14

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

Physics
1 answer:
pentagon [3]2 years ago
4 0

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 \times 0.01)}} \\  \\  = { \underline{ \rm{ \:  \: 0.00009 \: m \:  \: }}}

b).

km → m

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

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