Jovian Planets, Asteroids, and The Sun-

AI Thread Summary
The discussion centers around a student's confusion regarding a physics assignment related to Jovian planets, asteroids, and the Sun. The student seeks clarification but does not require direct answers, indicating a desire for guidance. Respondents emphasize the importance of posting specific questions and showing attempted work to facilitate better assistance. A link to the homework questions is provided, along with a suggestion to utilize the Homework Help forum for more structured support. Overall, the conversation highlights the need for clarity and specificity in seeking help with complex physics topics.
ElizebethDylan
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Questions about homework should be posted in the Homework Help forum (https://www.physicsforums.com/forumdisplay.php?f=152"). You will need to show what working you've attempt so far, and be more specific about which of the 20 questions you linked to you need help with.
 
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Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
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Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
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