Density of cylinder = 11.4g/cm3
Volume of cylinder = h r2
but height (h) = 5.50cm
radius(r) = d/2 = 2.50/2 = 1.25cm
Hence Volume = 5.50 × (1.25)2
= 8.6cm3
Density = Mass/Volume
Hence Mass of the cylinder =
Density × Volume
Mass = 11.4 × 8.6 = 94.04g.
You have to show the story or experiment so we know
Answer: Extension is Final length - initial length. This implies : 31.6-31 =0.6. Therefore the extension is 0.6
Explanation: