Question

A sphrical ball has a radius of .50 cm and weighs 2.0g. Will this ball float or sink when placed in water?

Answer 1

you have to find density
mass/volume
4/3 pi r^3
4/3 pi .50^3=.52
.52/2 -> .26cm^2/g

Answer 2

We have to compare that with density of water

Answer 3

Thanks, but will it sink or float?

Answer 4

I need to know density of water which I can recall at the moment

Answer 5

density of water is 1g/cm^3 which is more that our sphere so sphere would sink

Answer 6

Thanks <3

Answer 7

* small correction

I wrote .26cm^2/g which should have been .26cm^3/g