If a hypothetical planet were 4 times the mass and 2 times the diameter of the Earth: a..the density of the planet would be the same as the Earth's density. b...your weight would be one-half of that at the Earth's surface OC.the density of the planet would be twice the Earth's density. Od...the density of the planet would be half as much as the Earth's

Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 1.20 1028 kg and 1.60 103 m. (a) Find the density of such a star.(b) If a dime (V = 2.0 10-7m3) were made from this material, how much would it weigh (in pounds)?

1. (10 points) Convert 8.60 g/cm' to pounds per cubic foot. Given 1 kg on the Earth's surface weighs 2.20 pounds and 1 inch 2.54 cm. %3D

true or false ?  The ICRU sphere (ICRU, 1980) is a 30 cm diameter, tissue equivalent sphere with a density of 1 g cm3

The planet Jupiter has a mass of 1.9 × 1027 kg and a radius of 72,000 km. The Earth, meanwhile, has a mass of 6.0 × 1024 kg and a radius of 6,400 km. What is the volume of Jupiter in m3?

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

A bowling ball has a densityof 5.6 kg/m3. What is this densityin g/cm3?ANS: 5.6×10-3g/cm3

For this problem, we want to estimate the answer, so our assumptions may be a little unrealistic. Suppose we want to estimate how much air we need to send to a space station, assuming we cannot recycle air. Suppose four astronauts are in a spherical space station. If each of them typically breathes about 500 cm³of air with each breathe, and take 15 breathes per minute (average resting value): a. What is the volume of air you would need in the space station if these four astronauts stayed for a full year? b. If the density of air is 1.25 kg/m³ and it costs (thanks to SpaceX) a mere $100/kg to send objects to the space station, how much money would the astronaut air supply cost?

For the planet Saturn,What is its average density (kg/m3)

The force of gravity is 6 times greater on the earth than it is on the moon. What is the weight of a 150-pound man on the moon?A.156 poundsIS.900 poundsC.25 poundsD.144 poundsE.Not enough information is given