A 75kg surfer is paddling out on a 10.5ft wooden longboard with density 167kg/m3 . Seawater...

A 75kg surfer is paddling out on a 10.5ft wooden longboard with density 167kg/m3 . Seawater has specific gravity of 1.03. Assuming none of the surfer is submerged at the moment, how much of the surfboards 7cm thickness is submerged? You may assume the board is perfectly flat and the surfer has reached behind the breaks where the ocean is calm.

width of board not given

Expert Solution

The concept used in this question is of floating conditions of the Archimides principle , initially i draw the figure and then calculate the weight of the surfer and the wooden longboard , and then apply floating conditions and get the value of thickness ( h) submerged in the seawater.

Note:- As the width is not given in the problem so i assume to be 1 unit .

kindly upvote my answer , if you like , by clicking on the like button.

genius_generous answered 1 year ago

Assume that seawater is an aqueous solution at 3.50% NaCl. If the density of seawater is...

Assume that seawater is an aqueous solution at 3.50% NaCl. If the density of seawater is 1.025g /ml at 20 degrees Celcius, calculate your: a) molality b) molarity c) parts per million (ppm)

Say the density of air is 1.23 kg/m3 and the density of helium is 0.164 kg/m3...

Say the density of air is 1.23 kg/m3 and the density of helium is 0.164 kg/m3 when both are at STP. Let's model a balloon as a sphere of radius 0.12 m, with mass 2 g. 1) What is the mass of the helium that would fill a single balloon? 2) What is the buoyant force on a single balloon? 3) What is the net force on a single balloon? 4) If we attach 0.5 m of string (properties: 800...

A 1-mm diameter sphere (density=7900 kg/m3) is dropped into a tank of oil (density=900 kg/m3). The...

A 1-mm diameter sphere (density=7900 kg/m3) is dropped into a tank of oil (density=900 kg/m3). The sphere develops a terminal speed of 0.25 cm/s, what is the oil's viscosity? You may assume a small Reynolds number. Show your work.

Approximately spherical particles of diameter 150? and density 2650 kg/m3 settle through a liquid of density...

Approximately spherical particles of diameter 150? and density 2650 kg/m3 settle through a liquid of density 1097 kg/m3 and dynamic viscosity 3.8 mPa s. The volume fraction of particles is 30% in a container of internal diameter 2 cm Calculate: a)The absolute settling velocity that is apparent to the stationary observer in the lab frame. b)The slip velocity (Us) between solid and liquid phases. c) The superficial velocity of the particles in the lab frame.

A trough is filled with a liquid of density 850 kg/m3. The ends of the trough...

A trough is filled with a liquid of density 850 kg/m3. The ends of the trough are equilateral triangles with sides 8 m long and vertex at the bottom. Find the hydrostatic force on one end of the trough. (Use 9.8 m/s2 for the acceleration due to gravity.)

A trough is filled with a liquid of density 820 kg/m3. The ends of the trough...

A trough is filled with a liquid of density 820 kg/m3. The ends of the trough are equilateral triangles with sides 6 m long and vertex at the bottom. Find the hydrostatic force on one end of the trough. (Use 9.8 m/s2 for the acceleration due to gravity.)

Intrinsic carrier density of Ge is 1.7x1019 /m3 . It is doped with a pentavalent impurity...

Intrinsic carrier density of Ge is 1.7x1019 /m3 . It is doped with a pentavalent impurity of 1ppm. Assuming all impurity atoms are ionized, calculate the factor by which the majority concentration is more than the intrinsic carrier concentration.

a) The soil from a borrow pit is at a total density of 1.8 t/m3 and...

a) The soil from a borrow pit is at a total density of 1.8 t/m3 and a water content of 12%. It is desired to construct a road subgrade with a compacted total density of 2 t/m3 at a water content of 17%. Determine the quantity of soil (dry mass in tonnes) to be excavated from the barrow pit and the amount of water (in litres) to be added for every 1 m3 of compacted soil in the embankment. (Assume...

The density of ice is 920 kg/m3. If an ice cube is put in a beaker...

The density of ice is 920 kg/m3. If an ice cube is put in a beaker of water collected from the Great Salt Lake it floats with 80% of its volume submerged. What is the density of the water collected from the Great Salt Lake? 736 kg/m3 1000 kg/m3 1080 kg/m3 1150 kg/m3 none of the above

1. A slurry of particles with density 2000 kg/m3 is to be loaded into a thickener...

1. A slurry of particles with density 2000 kg/m3 is to be loaded into a thickener where the resulting voidage fraction is 0.89 and the superficial particle velocity is 2.8 mm/s. Calculate the particle system velocity. 2. Consider batch sedimentation system performed within a measuring cylinder where solids are settled according to Type 1 settling. The voidage fraction after the settling is 0.35 and the particle density is 2500 kg/m3 while the particle velocity is 0.0015 m/s. 2.1. What is...

Question