Design a parallelepiped-shaped float to be constructed of a polymer with relative density Sg = 0.4,...

Design a parallelepiped-shaped float to be constructed of a polymer with relative density Sg = 0.4, so that it is able to support you and your co-worker on top and stay out of the water 3cm. Justify each design decision qualitatively and quantitatively and present the figure.

weight of me and my conworker is 165kg

Expert Solution

Answer :

For the parallelopiped- float the required height is 60 cm

mass of float = 240 kg

Explanation :

samet mamat answered 1 year ago

Compare the differences in viscosity and density of water (SG = 1) and gasoline (SG =...

Compare the differences in viscosity and density of water (SG = 1) and gasoline (SG = 0.803). Determine the pressure at the bottom of a 8m high tank that is filled with water, and compare it to the pressure at the bottom if the tank is filled with gasoline. Calculate the volumetric and mass flow rates of the two fluids in a 0.10m diameter pipe moving at a velocity of 4.2 m/s.

The density of your unknown polymer was tested using H2O. If the density of your unknown...

The density of your unknown polymer was tested using H2O. If the density of your unknown was tested using ethanol instead of water, what would be the result?

what's the relationship between polymer structures and relative physical properties?

Mercury has a density of 13.6 Give the symbol of an elemental metal that will float...

Mercury has a density of 13.6 Give the symbol of an elemental metal that will float in Hg (liq) The choices are - Aluminium, Copper, Gold, Mercury, Silver, Brass, Cast Iron, 14 carat gold jewelry, 18 carat gold jewelry, 24 carat gold jewelry, Stainless Steel, Solder. - What is the symbol of the elemental metal of the choices listed above that will sink in Hg (liq)?

Hot air balloons float in the air because of the difference in density between cold and...

Hot air balloons float in the air because of the difference in density between cold and hot air. Consider a balloon in which the mass of the pilot basket together with the mass of the balloon fabric and other equipment is mb. The volume of the hot air inside the balloon is V1 and the volume of the basket, fabric, and other equipment is V2. The absolute temperature of the cold air outside the balloon is Tc and its density...

A polymer chemist studied the effect of relative humidity (RH) on the weight of molded parts...

A polymer chemist studied the effect of relative humidity (RH) on the weight of molded parts made from a polymer material. The chemist believes that any weight differences greater than 5 will have a impact on the end use of the molded part. Use the data from the study, provided below, to state conclusions about the effect of relative humidity on the average and variability of the weight. 70% RH 22.5, 24.2, 24.5, 29.2, 27.5, 24.5, 26.5, 23.5, 25.5, 27.0,...

An aqueous polymer solution has a relative viscosity of 1.375 at 25 Celsius. What is the...

An aqueous polymer solution has a relative viscosity of 1.375 at 25 Celsius. What is the absolute viscosity of the solution? What is the specific viscosity of the solution? If the intrinsic viscosity of an aqueous PEG solution is 0.200, what is the estimated molecular weight of the solute?

Find a materials property plot of elastic modulus and density. Identify a composite, a polymer, and...

Find a materials property plot of elastic modulus and density. Identify a composite, a polymer, and a metal with densities less than 3000 kg/m3 (Mg = 106 g) and the highest possible elastic modulus. Provide an example of an engineering design that might require this combination of material properties and explain why those properties would be important. What design advantages could a polymer offer over a metal even though the polymer has a lower stiffness?

Two astronauts float in deep space, at rest relative to each other. Including the equipment they...

Two astronauts float in deep space, at rest relative to each other. Including the equipment they carry, the first astronaut has total mass 521 kg and the second astronaut has total mass 615 kg. The first astronaut throws a 656 kg box of tools at 4.66, and the second astronaut catches the box. After the throw and catch: find the speed of one astronaut relative to the other, in m/s.

Find the current density necessary to float a copper wire in Earth’s magnetic field. Assume the...

Find the current density necessary to float a copper wire in Earth’s magnetic field. Assume the experiment to be done at the Earth’s magnetic equator in a field of 10?4 T. Use nominal density of copper in g/cm^3.

Question