# Density - math problems

#### Number of problems found: 133

- Density 2

What is the density of a piece of driftwood that has the mass of 25 grams and a volume is 30 cm to the 3rd power. And how do I figure it out? - Density - simple example

Material of density of 1485 kg/m^{3}occupies a container volume of 65 cm^{3}. What is its mass? - Sphere floating

Will float a hollow iron ball with an outer diameter d1 = 20cm and an inside diameter d2 = 19cm in the water? The iron density is 7.8 g/cm 3. (Instructions: Calculate the average sphere density and compare with the density of the water. ) - Density of the concrete

Find the density of the concrete of the cuboid-shaped column has dimensions of 20 x 20 cm x 2 m if the weight of the column is 200 kg. - Solid in water

The solid weighs in air 19.9 g and in water 17 g. Calculate the density of the solid. - Iron density

Calculate the weight of a 2 m long rail pipe with an internal diameter of 10 cm and a wall thickness of 3 mm. The iron density is p = 7.8 g/cm^{3}. - Wood

Wood density is 0.6 g/cm^{3}. How many kilograms weight 1 m^{3}of wood? - Planet Earth

What is the weight of the planet Earth, if its average density is ρ = 2.5 g/cm ^ 3? - Liter of gold

What weight does 1 dm^{3}of gold have? Gold density is 19,300 kg / m^{3} - Railway wagon

The railway wagon holds 75 m^{3}load. Wagon can carry a maximum weight of 30 tonnes. What is the maximum density that may have material with which we could fill this whole wagon? b) what amount of peat (density 350 kg/m^{3}) can carry 15 wagons? - There

There is 67 m^{3}of oil in the tank. What is his weight? The density of the oil is 910 kg/m^{3}. - Weight

The kilogram weight has a volume of 116 ml. From which material is it probably made? Use substance density tables, e. G. mathematical-physical-chemical tables. - Excavator

The excavator bucket capacity is 0.5 m^{3}. Determine the mass of sand that the excavator picks up. The sand density is 1650 kg/m^{3}. - Floating of wood - Archimedes law

What will be the volume of the floating part of a wooden (balsa) block with a density of 200 kg/m^{3}and a volume of 0.02 m^{3}that floats in alcohol? (alcohol density is 789 kg/m^{3}) - CuZn

Brass is an alloy of copper and zinc. The 10 centimeter brass cube has a weight of 8.6 kg. Copper density is 8930 kg/m^{3}, the zinc density is 7130 kg/m^{3}. Calculate how many kg of copper and zinc a cube contains. - Lead cube

Calculate the edge of the cube made from lead, which weighs 19 kg. The density of lead is 11341 kg/m^{3}. - Sand

How much m ^ 3 of sand can be loaded on a car with a load capacity of 5 t? The sand density is 1600 kg/m^{3}. - Iron ball

The iron ball has a weight of 100 kilograms. Calculate the volume, radius, and surface if the iron's density is h = 7.6g/cm^{3}. - Iron cast

What is the weight of cast iron with a volume of 3575 cubic centimeters? The density of the cast iron is 7600 kg/m^{3} - Gold wire

From one gram of gold was pulled wire 2.1 km length. What is it diameter if density of Au is ρ=19.5 g/cm^{3}?

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