en block 30cm on a side has a density of0.7o/em. If it is floating in freshwater...

Question

Question

Answer 1

Answer #1

Let the height of the block inside the water level be 'h'

Then according to the law of floatation of bodies:

Weight of the body = Weight of the displaced volume

ho_s imes V_s imes g = ho_w imes V_d imes g

0.7 x (30)3 × q 1 × h × 302 × q

1 × h × 302 0.7 × (30)

h =0.7× (30) = 21cm2

Hence the height of body above liquid level = 30 - 21 = 9 cm

So, the percentage of wood block above water level = Vol. of Solid above watrvl 302 x 9 Total Vol 100% 30% 303

Answer 2

Similar Homework Help Questions

B. Floating, wooden block s 13. Remove the brick block from the water.be 14. Use the...

B. Floating, wooden block s 13. Remove the brick block from the water.be 14. Use the scale to determine the weight of the wood block out of water. 49.00 N 15. Note the exact water level reading in the container of water and record the reading below. 100.00L 16. Now, complete submerge the wooden block in the water and hold it there under the water with the mouse. Note the new water level reading in the container of water and...
tundamental mode for the spring ?(5 points) piece of wood is floating on the surface of...

tundamental mode for the spring ?(5 points) piece of wood is floating on the surface of the sea. Assume the density of wood is 55x10 kg/m3 and 47% of the piece volume is above water. What does it tell us is the density of seawater? (10 points) 10. a) How much heat must be added to .180 kg of water to raise its temperature from 25 Cto 85 C? (5 points) b) You use electric immersion heater with power of...
a) A block of wood (density 600 kg / m3) has a length of 40 cm,...

a) A block of wood (density 600 kg / m3) has a length of 40 cm, a width of 30 cm and a height of 20 cm How much percentage of the total volume is submerged in oil of density 950 kg / m ^ 3? b) Force required to remove a circular plug of 0.02 meters radius from a bathtub whose water level is 0.5 m high with respect to the bottom of it? Consider the density of water...

A 100 kg block of lead with a density of 11,340 kg/m3 is submerged/floating in saltwater...

A 100 kg block of lead with a density of 11,340 kg/m3 is submerged/floating in saltwater with a density of 1024 kg/m3. a) Will the block float? Provide your reasoning and a sketch of the situation. (10 Points) b) What is the force of buoyancy on the lead block? (10 Points) c) What is the force due to gravity on the lead block? d) What is the force of buoyancy on a 100 kg block of wood with a density...
A cube of wood 20cm on each side floats in water so that 7cm is above...

A cube of wood 20cm on each side floats in water so that 7cm is above the surface of the water and 13cm is below. a)What is the density of the wood? ( You must justify your answer) b) How much force would have to be exerted on the wood to submerge it? c) what volume of lead mass has to be placed on top of the block of wood so that it will just be totally submerged? d)Suppose a...
mass of One way of restating Archimedes' Principle is that the mass of a block that...

mass of One way of restating Archimedes' Principle is that the mass of a block that is floating in a fuid is equal to the the fluid displaced by the block. Imagine that we have a solid block in which all of the sides are 1 cm long-a cube with a volume of 1 cm (Fig.A1.4.2A). We set it in a beaker of pure water and find that, when the block and water come to rest, 70% of the block...

A block of material with a density of 856 kg/m3 is floating in a fluid that...

A block of material with a density of 856 kg/m3 is floating in a fluid that has a density of 1095 kg/m3. What fraction of the object is above the surface of the fluid?
A cubical block of wood, 11.0 cm on a side, floats at the interface between oil...

A cubical block of wood, 11.0 cm on a side, floats at the interface between oil and water with its lower surface 2.40cm below the interface (the figure (Figure 1)). The density of the oil is 790 kg/m3. What is the mass of the block? What is the density of the block?
A cubical block of wood, 10.7 on a side, floats at the interface between oil and water with its...

A cubical block of wood, 10.7 cm on a side, floats at the interface between oil and water with its lower surface 2.10 cm below the interface (the figure ). The densityof the oil is 790 kg/m^3.a) What is the gauge pressure at the upper face of the block?? Pab)What is the gauge pressure at the lower face of the block?? Pac)What is the mass of the block?? kgd)What is the density of the block?? kg/m^3

a cube of wood 30 cm on a side and having a density of 0.65 g/cm^3...

a cube of wood 30 cm on a side and having a density of 0.65 g/cm^3 floats on water. A) what is the distance from the top of the cube to the water level? B) how much lead weight has to be placed on top of the cube so that its top is just level with the water?