Recent content by geofix

that's the thing. So the only prereq was astro 100 which I took. No recommended courses for it either. the professor turned it into a combination class, with a higher level. but lower level students are supposed to do the same assignments...there are office hours. this is our 3rd week of class...

perhaps for fully grasping the problem, you are correct. but for solving it, how could it require months when other students do it?

Ok. I might drop the course but I'd rather not give up so quickly. I do not know how to integrate but maybe, God willing, I can figure out what I'm doing.

ok I'm trying to find the minimum radius of a planet needed to produce a 1 Million Pa in the center of the planet. However, I'm only give the gravity constant value, and the density of the planet. Right now I'm studying every equation in the book. Started with F=ma. I'm on to pressure gradient...

Ok so the correct title would be using density (mass/volume) to Newtons...I guess I am approaching the problem wrong if this is impossible. <Moderator's note: title changed>

Thank you so much Haruspex for your detailed explanation. Context helps tremendously. So if I have pressure, which is a dimension (with units 3.0/cm^3). Do you know how I would go about finding the force(dimension) of 1x 10^9 Pa? These dimensions don't even seem coorelated. Volume vs...

Thanks chester, but i don't think I'm ready for the solution . i just want to understand f=ma right now. I understand the more force, the faster an object will accelerate but how do mass and acceleration affect the force? Am I dumb for not understanding this ? agh oh well for example I know...

Yes but ideally i just want to understand the units...I'm having trouble conceptualizing Pa vs Newtons vs Density even given their definitions.

I apologize. I meant density is mass/ volume. Force mass/acceleration. wait is Newton different from force? Pa = 1 Newton/ m. I didn't use google for this. I'm using my notes for this.

Homework Statement We're given pressure (Which is mass/volume) and G constant Looking for minimum r, given pressure, that would produce a certain F value in Newtons... 2. Homework Equations F=ma Blanking here* Honestly everyone this is my first physics intense college course and i have no...