Thursday

November 27, 2014

November 27, 2014

Posted by **Momito** on Saturday, April 7, 2012 at 4:00pm.

- Physics -
**Elena**, Saturday, April 7, 2012 at 4:50pmW =0.4 m , L = 0.6 m , H = 0.3 m, ρ1 is the density of wood, ρ2 is the density of the liquid,

relative density is ρ1/ ρ 2 = 0.7 (dimensionless quantity!!!)

m•g = F (buoyant)

m•g = ρ1• V•g = ρ1•W•L•H•g,

F (buoyant) = ρ2• V1•g =

= ρ2•W•L•(H-x)•g.

ρ1•W•L•H•g = ρ2•W•L•(H-x)•g,

ρ1• H = ρ2• (H-x),

x = H•( (ρ1/ ρ2) – 1) =

= 0.3•( (1/0.7) – 1) = 0.129 m.

- Physics -
**Elena**, Saturday, April 7, 2012 at 4:58pmF + mg=F(buoyant)

F = F(buoyant) - mg = ρ2•W•L•H•g – ρ1•W•L•H•g = W•L•H•g•(ρ2– ρ1)

**Answer this Question**

**Related Questions**

Advanced chem - A rectangular block of wood is 40cm wide, 60cm long and 30cm ...

MATHS - Mr.Li had a big rectangular styrofoam measuring 40cm by 40cm by 30cm. He...

Physics - A cubical block of wood 0.100 m on a side and with a density 550 kg/m^...

Physics - A solid rectangular block measure 0.100*0.080m*0.060m and floats ...

Maths urgent help needed! - A rectangular tank measures 60cm by 40cm by 30cm. It...

calculus - Given a 30cm by 30cm sheet of metal has squares of side x cm cut from...

Physics - A block of wood with volume V floats in water with 0.68V submerged. In...

Science - You are given a wooden block that is 25cm long, 8cm wide and 3cm tall...

physics - a cowboy at a dude ranch fills a horse trough that is 1.5m long, 60cm ...

Physics - A wooden cube of side 5cm floats in water 200cm^2 of its depth below ...