Question

pls answer all these three ques in the pic below....

Answer 1

Q1 (i) density = mass/volume
         = 2gm/cm^3
(ii)wt of water displaced = volume of solid = 350g
(iii)2 (RD= denstiy of solid / density of water at 4 degree celsius)
(iv) it will sink because density of solid is greater than density of water.
Q2
(i)wt of water displaced = 50N-45N = 5N =volume of solid
wt = mg
50=10m
m= 5kg
density = m/v = 1kg/m^3
RD = 1/1000 = 0.001
(ii) 1kg/m^3