The proton has a radius of approximately 1.0*10^-13cm and a mass if 1.7*10^-24g. Determine the density of a proton. For a sphere, V =(4/3)3.14r^3

You just measured a metal cylinder and obtained the following information: mass = 3.543 g diameter = 0.53 cm height = 4.4 cm Determine the volume (V) and density of the cylinder. (V=nr2 h, where r = radius, h = height, π = 3.14) S A Volume of the cylinder = 0.87 cm3; density of the cylinder = 3.7 g/cm3 B Volume of the cylinder = 0.97 cm3; density of the cylinder = 2.7 g/cm3 C None of the above have both the volume and density correctly reported E Volume of the cylinder = 0.97 cm3; density of the cylinder = 3.7 g/cm3 Volume of the cylinder = 0.87 cm3; density of the cylinder = 2.7 g/cm3

The density of gold is 19.3 g/cm^3.  What is the density of gold in lb/in^3? (1lb = 454 g , 1 in = 2.54 cm)

the radius of a neon atom is 6.9 x 10 ^-2 nm, and its mass is 3.35 x 10^-17 micrograms. what is the density of the atom in grams per cubic inch (g/in^3) ?

Suppose you are trying to find the volume of a box based on the given measurements for the length, width, and height of the box, where the height was measured in two parts.      length, l = 2.20 in      width, w = 3.71 in      height, h = 10.4 in + 1 in Calculate the height, ℎ, of the box, first keeping all digits, then rounding to the proper number of significant figures. unrounded h = ____in rounded h =____  in  Calculate the volume (V) of the box using V =l x w x h. Round to the proper number of significant figures.  v=_____in3

The density of silver is 10.5g/cm^3. What is the mass of a bar of silver in Kilograms, that measures 5.50cm x 3.73cm x 2.10cm?

In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 8×103 suns and a radius equal to one-half the radius of our moon. What is its density in grams per cubic centimeter? The mass of the sun is 2.0×1030kg and the radius of the moon is 2.16×103mi. (Volume of a sphere =43πr3.)

(282.7×105)−(1.100×103)]×2.8990 Express your answer to the appropriate number of significant digits.

In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 1×10^3 suns and a radius equal to one-half the radius of our moon. What is its density in grams per cubic centimeter? The mass of the sun is 2.0×10^30 kg and the radius of the moon is 2.16×10^3 mi (Volume of a sphere =4/3πr^3)

A piece of silver has a density of 10.5g/cm^3. If the amount of space that the silver takes up is 25.5cm^3, what is its mass?