Question

Q1: Density of an object is 0.25 kg/dm3, find its density a in kg/m3. b. in g/m. C. in 1b/inch (inch = 2.54 cm, 1b=454 g, ft=12 inch) Q2: Fill the following table by writing the correct number of the significant figures Number Significant Figures 70.2 0.045 70.0 4.7 100 706 400.0 0.002 0.0020 0.002046 1.0 104,020 1.20 x 10 2.00 x 10.)

Answer 1

2) a) 3

6 Xa) 0.25 kg / dr = 0 25x103 kg/m3 = 250 kg / m3 16) 0-25 x lo x 10 g/m² (0) 0.25 x 0.0361 16/in3 = 0.00903 les in 2.58105 g 23

B) 2

C) 3

D) 2

E) 1

F) 3