EM. The density range is about 28â45 kg/m3 . ... L Density, kg/L Blue 0.80 Yellow 0.80 Green 0.80 Red 0.80 Mystery. Relevance. Measured and expressed in pounds per cubic foot (pcf) or kilograms per cubic meter (kg/m3), density is one of the most important of all foam properties. Density Converter / Densities Of Various Materials / Density Of Ice Online converter page for a specific unit. A 55kg swimmer climbs onto a styrofoam block whose density is 160 kg/m^3.? Polystyrene is composed of styrene particles that have undergone polymerization. The mass of the Styrofoam ball = Vd = 0.3 kg. In addition, explore hundreds of other calculators including topics such as finance, math, health, fitness, weather, and even transportation. 800.92315 kg/m 3 / 16.018463 [ (kg/m 3) / (lb/ft 3) ] = 50 lb/ft 3. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into kg/m 3 then divide by the factor for B to convert out of kg/m 3. Lower density foam is also great for occasional-use comfort products. Experiment with choosing a material: material S=sinker F= Floater Density given Ice S 0.92 Kg/L Aluminum S 2.70 Kg/L Brick S 2.00 Kg/L Wood F 0.40 Kg/L Styrofoam F 0.15 Kg/L 4. Polystyrene, trade name Styrofoam, has a density of 1.05 grams per cubic centimeter. Density of Wood Density of Ice Density of Styrofoam How do these compare? Density is a function of the chemistry used to produce the foam and additives included with the foam chemistry. Talk with your partner about this possibility- can you change the mass of the aluminum block without changing the volume of the aluminum block? Try to get aluminum to float. A 55kg swimmer climbs onto a styrofoam block whose density is 160 kg/m^3. Extruded polystyrene foam (XPS) or STYROFOAM consists of closed cells, offers improved surface roughness and higher stiffness and reduced thermal conductivity. The density of styrofoam is lower: about 0.028 to 0.045 times that of water. If the water level reaches ONE-FOURTH OF THE WAY UP the styrofoam, what is the block's volume (in m^3)? This free density calculator determines any of the three variables in the density equation given the other two. 2 Answers. The weight of the ball = 2.94 N The buoyancy force on the ball = 9.8 N The weight that can be supported by the ball is 9.8 N - 2.94 N = 6.86 N The maximum mass = 0.7 kg = 700 g Here you can make instant conversion from this unit to all other compatible units. Answer Save. Made up of 95 percent air, polystyrene is used in a wide variety of products, from insulation to foam cups. Density is a measurement of the mass per unit volume. Or, you can find the single factor you need by â¦ If used as a soft bed topper by an average-sized individual every day, a 1.5LB density foam will begin to show a noticeable decline in support and comfort after six months to a year. 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