• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Problem solved!! (just ignore)

Hint is in bold:

The standard kilogram is a platinum-iridium cyclinder 39.0mm in height and 39.0mm in diameter. What is the density of the material?

I'm having trouble finding the mass of the cylinder.
Click to expand...
 
Thanks a lot, but now I feel like an idiot. I just overlooked that first part I guess. I don't know what I was thinking. Thanks again for the quick replies.
 
Actually.... this MAY be a trick question I would check the answer based on density and volume = h ¶ r^2

There was an article in the New York times today about how they need to create a new "standard kilogram" because the cylinder they used before has mysteriously lost 50 micrograms compared to other measures.

Edit: had sphere volume formula there before the new weight they are proposing as a kg is a sphere instead of a cylinder.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top