Give reasons for the following.
11. The SI unit of density is kg/m3.
2. Volume of a crystal of potash alum cannot be determined by immersing it into water taken in a graduated beaker.
3. Speed of a car is more than the speed of a
cyclist.
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(1 ) the s i unit of mass is kg or kilogram. the SI unit of volume is metre cube or m³ . hence, density = Kg / m³ .
(2)the volume of a crystal of potash alum cannot be determined by merging it into water taken in a graduated beaker because there is dissociation of potash alum.
(3) because mass of car is higher than that of cyclist and car is working on it has more power.
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