5.2 Density Questions

5.2 Density Questions

04 October 2011

14:00

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PFY p.84, Q.1,2,3,5,6 and 9.

1. D=m/v  D= 100/20  D=5 g/cm3

2. D= m/v  D= 40,000/5  D= 8000 kg/m3

3. D=m/v   6000=v/3    mass= 18000kg 

5. V=l x w x h V= 2 x 4 x 5  V=40m3

6. D= m/v   4000= 20000/v  v= 5         

9. Density x volume= mass  2.5 x 4 x 10 x 1.3 = 130kg