Physics

posted by .

A solid rectangular block measure 0.100*0.080m*0.060m and floats freely in a liquid of density 1354kg/m^2 if the depth of liquid 0.04m up the block largest side. Find the density of the block.

  • Physics -

    Vr=0.100 * 0.08 * 0.06=4.8*10^-4 m^3 =
    480 cm^3.

    Vb=0.04 * 0.08 * 0.06 = 1.92*10^-4 m^3 = 192 cm^3 = Vol. below surface.

    Vb = (Dr/Dl)*Vr = 1.92*10^-4 m^3.
    (Dr/1354)*4.8*10^-4 = 1.92*10^-4.
    Multiply both sides by 1354:
    Dr*4.8*10^-4 = 2599.68*10*-4.
    Dr = 541.6 kg/m^3=Density of rectangle.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A rectangular block of ice 8 m on each side and 1.5 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. a) How high does the top of the ice block float above the water level?
  2. physics

    A rectangular block of ice 10 m on each side and 1.1 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. a) How high does the top of the ice block float above the water level?
  3. PHYSICS _ please help

    A metal block of volume 1 * 10^3 cm^3 is suspended from a thread as shown in the diagram. It is lowered into a beaker of liquid of unknown density until it is completely immersed but does not touch the bottom of the beaker. The beaker …
  4. physics

    A block of mass 200g and density 0.8g/cm3 is submerged in a liquid of density 0.2g/cm3. find minimum force required to keep the block floating.
  5. Physics

    A rectangular block of wood is 40cm wide, 60cm long and 30cm deep. If its relative density is 0.7kg/m^3 and it floats with its 30cm side vertical, determine: a)the length of the block above the water surface and b)the minimum force …
  6. Physics

    Calculate how much work does a block of aluminum of mass 100 kg do if it is heated at P = 1 atm from 20 degrees to 660 degrees. n.b. - The density of solid aluminum at 20 degrees is p= 2.7 g/cm^3. When it is liquid at 660^C the density …
  7. Physics

    1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it?
  8. Physics Fluids

    When a block of volume 1.00 × 10–3 m3 is hung from a spring scale, the scale reads 10.0 N. When the same block is then placed in an unknown liquid, it floats with 2/3 of its volume submerged. The density of water is 1.00 × 103 …
  9. physics

    A cubical block of density rB and with sides of length L floats in a liquid of greater density rL. (a) What fraction of the block’s volume is above the surface of the liquid?
  10. Physics

    A cubical block of steel of side 'a ' and density 'p'floats on mercury of density with a part of it being submerged. The height of the block above the Mercury level is given by

More Similar Questions