Recent content by jhyrman

Homework Statement [/B] A spherical satellite of approximately uniform density with radius 5.1 m and mass 280 kg is originally moving with velocity 2600, 0, 0 m/s, and is originally rotating with an angular speed 2 rad/s, in the direction shown in the diagram. A small piece of space junk of...

I am doing PHYS 172 at Purdue, modern mechanics which begins with algebra and introduces calculus. I am having a hard time seeing beyond a page of formulae and understanding physics as fundamental principles. The textbook is "Matter and Interactions" by Chabay and Sherwood, and I am also reading...

Thank you for your help. I found the problem in my math calculating Young's modulus. I corrected that and it finally got the correct answer.

Thank you PietKuip, that does make it a lot easier. I still get the same result. SteamKing, I tried it with and without. After rounding to correct sig figs, the result is the same so I know that's not the problem. I wasn't sure how elastic metal is, but I suppose it would go back to it's...

Homework Statement From WebAssign: One mole of nickel (6.02e23 atoms) has a mass of 59 g, and its density is 8.9 g/cm3. You have a bar of nickel 2.44 m long, with a square cross section, 1.8 mm on a side. You hang the rod vertically and attach a 45 kg mass to the bottom, and you observe that...