Answer / mechatronics89

let p1 = density of wood and p2 be dat of fluid.
applying force balance
p1*V*g= p2*(4/5)V*g (gravity = buoyant force)

800=.2*p2
p2=4000 kg/m^3

Answer / arul - mz

Kindly be clear in the words used in the question...

Taking the question in the following way I solve it...

The 4/5th part of volume of a piece of wood foating is sunk
in a fluid. if the relative dencity of wood is
0.8 then what will be the dencity of fluid in KG/M3.
PLEASE ANSWER WITH SOLUTION.

Assume wolume of wood = 1000 cu.m
As per the data avl...

qty immersed = 800 cu.m (4/5 th sunk)

by Archimedes principle it must have displaced 800 cu.m of
liquid.

RD=0.8 implies that
density = 800 kg/cu.m

so the mass of wood = vol of wood floating*density
= 1000*800

Den of liq. = mass of liq displaced / vol of liq
As per archimedes second law for floating bodies,
mass of liq displaced = mass of floating object

so, Den of liq = 1000*800/800=1000 kg/sq.cm

Who discovered non-newtonian fluids?

0 Answers  

---

What are the criterias for selecting piping for different utilities services like cooling water, DM Water, Service Water and Fire Water.Please provide some technical literature on that.

2 Answers   DAE,

---

Where oranges are mostly found in india?

1 Answers   DEI,

---

what is the difference between cold and hot spark plug? mention their place of use with justification?

0 Answers   Hero Honda,

---

Can contractor purchase as cst purcbase who is registerd under wct act in mp

0 Answers   KL Engineering,

---

general diesel engine we are using 15w 40 oil unfortunatley our oiller mis used the oil hudralic oil refilled when he doing the service which kind proplem coming in future?

0 Answers   Cummins,

---

what is hammering of fluid?

2 Answers   Bhel,

---

why dont we use the vapour absorption refrigeration system in power palnts

1 Answers  

---

i was selected in bhel et exam in mechanical engg discipline .can any one help me how to get prepare for interview

0 Answers   Bhel,

---

how to design a sheet metal bracket?

1 Answers   Bhel, TATA,

---

Device use to control flow rate of centrifugal pump.

2 Answers   RRB,

---

What is the normal Ph value of boiler water

2 Answers   ABC Inc, RRB, Siemens,

---