Help An important question for me

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The discussion revolves around a question that requires independent thought and understanding of conservation principles in physics. Participants emphasize the importance of reflecting on the question before seeking help. There is a suggestion to use a homework template to structure responses effectively. The urgency of the inquiry is noted, as the original poster needs to present their findings soon. Overall, the conversation stresses the necessity of personal engagement with the problem at hand.
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Welcome to PF. Before we can help you, please post your thoughts on the question. Better still, use the homework template with which you were provided

 
In order to answer questions like this, first think:
Do the assumptions given allow me to regard some property/phenomenon as remaining the same, or that is, CONSERVED, throughout the entire period of observation?
 
i have to bring it up tomorrow afternoon..
 
pucoñe said:
i have to bring it up tomorrow afternoon..

Does that excuse you from doing independent thinking of your own??
Have you at all bothered to reflect upon the question I posed you?
 

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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