One more thing: what does it mean to compare the answers?
Edit:
Okay, for 1b, do you take the cube root of what you get from the formula?
I'm confused about where to get the density for number 2. Am I on the right track?
Edit 2: Yeah, I'm still completely confused how one calculates...
Thank you guys very much for your replies. This has really helped.
@ Astronuc: The force of gravity pulling the particle down and the force of movement to the side?
@ Matterwave: I'm really confused as to how one gets mass out of the equation you listed. It seems that there's a bit more to...
I was going to put this up in the homework forum, but I feel the folks down here are more capable of helping me out.
I have to do an assignment, but I cannot go in for office hours to get help from my professor. Regretfully, I lost the sheet and forgot to grab another until just a few days...