physics

A 10 cm by 10 cm by 10 cm wood block with a density of 700 kg/m^3 floats in water.
a. What is the distance from the top of the block to the water if the water is fresh?

b. If it's seawater?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. rho fresh = 1000 kg/m^2
    rho salt = 1029 kg/m^3 approx

    submerged draft = d

    vol of block = .1*.1*.1 = .001 m^3
    mass of block = 700*.001 = .7 kg

    volume of fresh water displaced must have mass = .7 kg
    so
    .1 * .1 * d * 1000 = .7 kg
    d = .07 m = 7 cm
    so freeboard above water = 3 cm

    if density is 1029
    .1*.1*d * 1029 = .7
    d = .068 m = 6.8 cm
    so freeboard = 3.2 cm

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. its 2335

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. PHYSICS

    A 15g bullet is fired horizontally into a block of wood with a mass of 2.5 k and embedded in the block. Initially the block of wood hangs vertically and the impact causes the block o swing so that its center of mass rises 15cm.

  2. Chemistry

    A block of wood has a mass of 6.0 g and a volume of 12.0 cm3 whats the density of the block of wood?

  3. physics

    A copper (Cu) weight is placed on top of a 0.24 kg block of wood (density = 0.60*10^3 kg/m3) floating in water. What is the mass of the copper if the top of the wood block is exactly at the water's surface?

  4. Physics

    the weight of the block if wood is 96.5 N. the coefficient of static friction between the block of wood and vertical wall is 0.45. what minimum force is required to prevent the block from sliding down the wall

  1. Physics

    1. A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, and the bullet penetrates .15 m into the block of wood, determine: a) The average force required to

  2. physics

    A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that exerts a force of 30 N force of friction on the block of wood. The acceleration of the block of wood

  3. physics

    A ballistic pendulum consists of a 1.25-kg block of wood that is hanging from the ceiling in such a way that when a bullet enters it, the block’s change in height can be recorded as it swings. A bullet having a mass of

  4. Physics

    A 4.1 g dart is fired into a block of wood with a mass of 20.2 g. The wood block is initially at rest on a 1.2 m tall post. After the collision, the wood block and dart land 2.6 m from the base of the post. Find the initial speed

  1. Physics

    A cubical block of wood 0.100 m on a side and with a density 550 kg/m^3 of floats in a jar of water. Oil with a density of 750 kg/m^3 is poured on the water until the top of the oil layer is 0.035 m below the top of the block. 1.

  2. PHYSICS

    A piece of wood is floating at the surface of some water as illustrated (the diagram is not to scale). The wood has a circular cross section and a height h = 4.0 cm. The density of water is 1.00 g/cm3. The distance y from the

  3. Physics

    A block cedar has a mass of 200 kg and density of 570 what fraction of the wood will be surface of block is floating in water

  4. physics

    a block off wood (density = 0.5 g/cm^3) is floating in oil (density = 0.75 g/cm^3). The mass of the wood is 1500 g. Determine the volume of the oil displaced

View more similar questions or ask a new question.