Recent content by Seth Newman

We have, but the equation for the volume of a sphere ends up the same no matter what coordinate system we work in. Is there something we are not thinking about?

Homework Statement "SpaceForce One" is a perfectly spherical ship of mass 2.5·10^6 kg and Radius 42 meters bobbing up and down in calm seas on Earth At what frequency does SpaceForce ship bob? Homework Equations None explicitly given. The Attempt at a Solution We approached this problem in a...

Great, thanks a bunch. We were stuck in a conceptual hell trying to solve this. I feel bad that it was so obvious. Appreciate it!

Ahh. Okay. In a previous problem we calculated the angular velocity needed in order to simulate Earth's gravity within the Dyson sphere (there's supposedly people living inside the sphere) so we should be able to use the angular velocity to calculate the period of one rotation (which is the...

Okay. So if we use the spherical shell theorem, then no net gravitational force on the inside has a net gravitational force on anything outside. So the forces are equal and opposite? Does this mean the sun exerts no net force on the Dyson sphere?

Homework Statement On Earth, seasons occur due to the tilt of our planet. In the SSDS (A Dyson Sphere built around our sun), we can cause seasons to occur by having the Dyson sphere be not perfectly centered around the sun. If you want the sun to be 10% closer to the one side of the Dyson...

Great, thanks. That connection completely missed me. Appreciate it. Edit: Turns out the radius needs to be 0.00094714 meters for Mars to be turned into a black hole!

Ah. So, I should be looking for when the escape velocity of Mars is the speed of light?

Homework Statement To what radius do you need to compress Mars in order to turn it into a black hole? Homework Equations None given, but I am mildly familiar with Schwarzschild and his equation. I know that if we double the object's mass, multiply by the universal gravitational constant, and...

I was reading an article today about how Shell is discussing the move towards "cleaner" energy. This got me thinking. Eventually, most companies will be forced to move towards renewables as public opinion and natural resources become stacked against them. Many large oil and coal conglomerates...

Thanks for the input. I actually am halfway through Calculus 2 (for science majors) and am holding an 85% in the course, and received an 85% on the first test, which was one of the highest grades in the class. Calculus 1 was a breeze, even with my lack of trig knowledge. I found learning the...

Greetings science enthusiasts - Longtime lurker, first time poster here. I am in a bit of a weird position academically, and would love some pertinent advice. Some background: I am a former Firefighter/Paramedic who got a few AAS degrees (knocked out about 154 credits in 8 quarters), and...