Question

A piece of iron weighs 155 gf in air and 133 gf in water. What is its volume and the relative density of the iron? What would be the same piece of iron appear to weigh in alcohol of density 0.8 gcm?​ Please show working especially for the second part of the question

Answer 1

Answer:Answer:

weight in air =44.5gf=0.445gN

weight in water =39.5gf=0.395gN

volume of the iron =Vi

density of the iron =d

density of the iron =dVi×dg=0.445g

density of the iron =dVi×dg=0.445g⇒Vi×d=0.445

density of the iron =dVi×dg=0.445g⇒Vi×d=0.445density of water =1000kg/m3

Vi×1000×g=0.445g−0.395g

Explanation:

Answer 2

Answer:

volume is 22

density is 7.04

Explanation:

1) Volume

= As we know,

loss in weight of body = true weight - apparent weight

= 155 - 133

= 22cc

2) Density of iron

= 7.05 (approx)

3) weight of iron in alcohol

= 137.4