Question

M w .asbiyentProblemlD=120150644&offset next# Apps T-shirt Design Lab <Homework 12: Chapters 15 and 16 Problem 15.44 A solid block is attached to a spring scale. The reading on the scale when the block is completely immersed in water is 25.1 N. and the reading when it is completely immersed in alcohol of density 808 kg/m is 25.9 N. Part A What is the block's volume? V AED ROO? Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B What is the block's density VAXD Om ? kg/m Submit Request Answer

Answer 1

part A)

let the volume is V

difference in buoyant force = difference in weight

(1000 * 9.8 * V - 806 * 9.8 * V) = 25.9 - 25.1

solving for V

V = 0.000421 m^3

the block's volume is 0.000421 m^3

part B)

for the density

let the density is p1

p1 * V * g - buyoant force in water = reading on the scale

p1 * 0.000421 * 9.8 - 1000 * 0.000421 * 9.8 = 25.1

solving for p1

p1 = 7084 Kg/m^3

the block's density is 7084 Kg/m^3