1. P air (massa jenis) = 1 gram/cm³ = Kg/m³ 2. 28 km/jam = m/sekon #mohon sma cara kerjanya :'v/ #Thx

Hai Clara , selamat pagi.

Kakak bantu sedikit ya.

1. 1 gram = 0,001 kg.

1 cm³ = 0,000001 m³

maka

1 gram /cm³ = 0,001 kg / 0,000001 m³

= 1000 kg/m³

2. 1 km = 1000 m

1 jam = 3600 sekon

Maka

28 km/jam = ( 28x 1000) / 3600 ( m/s )

= 28000/3600 m/s

= 7,77 m/s