A cube 8.22 cm on each side is made of a metal alloy. After you drill a cylindrical hole 1.5 cm in diameter all the way through and perpendicular to one face, you find that the cube has a mass of 0.21 kg. What is the density of this metal? Use T = 3.14 . Express your answers in kg m³ and in whole numbers (NOT SCIENTIFIC NOTATION).

An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density of 1.10 × 103 kg/m³. The tire can be modeled as consisting of two flat sidewalls and a tread region. Each of th sidewalls has an inner radius of 16.5 cm and an outer radius of 30.5 cm as shown, and a uniform thickness of 0.675 cm. The tread region can be approximated as having a uniform thickness of 2.50 cm (that i its inner radius is 30.5 cm and outer radius is 33.0 cm as shown) and a width of 19.4 cm. What is the moment of inertia (in kg m2) of the tire about an axis perpendicular to the page through its center? " 33.0 cm 16.5 cm Sidewall 30.5 cm Tread Enter a number. find the moment of inertia of the sidewall and the moment of inertia of the tread region. Each can be modeled as a cylinder of nonzero thickness. What is the inner and outer radius for each case? What is the formula for the moment of inertia for a thick-walled cylinder? How can you find the mass of a hollow cylinder?…

A large chunk of metal had a mass of 393 kg, and it's volume is measured to be 0.05 m^3. a. Find the metal's density and weight density in SI units. b. What kind of metal is it?

Please help. This problem involves finding the radius and volume of a platinum atom using its density. Thank you.

A cube 7.81 cm on each side is made of a metal alloy. After you drill a cylindrical hole 1.62 cm in diameter all the way through and perpendicular to one face, you find that the cube has a mass of 0.56 kg. What is the density of this metal? Use π=3.14 . Express your answers in kgm3 and in whole numbers (NOT SCIENTIFIC NOTATION).

There is a brass cylinder weighing 1.000 kg, has a diameter of 0.047 meters, and it is 70 mm tall. Which of the following answers represents the volume the cylinder occupies, and the mass density of the brass?

A rectangular block of copper alloy has a mass of 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? 9386 kg/m³ O 0.112 kg/m³ 402938 kg/m3 2650 kg/m3 8922 kg/m³ 5498 kg/m³

The hydraulic diameter of a rectangular duct is calculated using the equation D = 4, where Dr is the hydraulic diameter, A is the cross-sectional area of the duct and p is the perimeter of the duct. If the dimensions of the rectangular duct are a = 26 cm+0.4 mm, and b = 33 cm +1.3 mm, what is the uncertainty of D, in percentage format? Enter the answer as a numerical value without any sign. Retain 3 significant figures. a

The density of platinum is 21500 kg/m3 and that of aluminum is 2702 kg/m3. Find the ratio of the volume of 1.20 kg of platinum to the volume of 1.01 kg of aluminum.

You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2 is a cube of aluminum. Object 3 is a sphere of copper. a. the density of tin is 5.75g/cm2. What is the mass of object 1 in kg if the rectangular block has a volume of 1.34L? b. what is the volume in cubic inches of object 2 if the cube of aluminum 7.58 inches on a side? c. what is the mass in kg of object 2? the density of aluminum is 2.70g/cm3 d. what is the volume in cm3 of object 3 if the sphere of copper has a diameter 8.62cm? the volume of the sphere is 4 {pi}^3/3 e. what is the mass in kg of object 3? Copper has a density of 8.96g/cm3