- #1
W24JBLV
- 10
- 0
Question About Archimedes ? HELP!
How Did Archimedes Resolve the problem of the Crown ?
How Did Archimedes Resolve the problem of the Crown ?
Question About Archimedes ? HELP
- Thread starter W24JBLV
- Start date
-
- Tags
- Archimedes
AI Thread Summary
Archimedes resolved the problem of the crown by determining its density through water displacement, confirming whether it was made of pure gold. The discussion also touches on the connection between this method and other fluid-related problems, although the oil and water question is not directly related. One participant expressed frustration over not being able to solve the oil/water problem, which is crucial for their class grade. The conversation highlights the challenges of understanding fluid dynamics in practical applications. Overall, the thread emphasizes the significance of Archimedes' principles in solving real-world problems.
- #2
mathPimpDaddy
- 55
- 0
oh, I saw a documentary on that. I think he dipped the crown in water, and found out depending on the water level, the density of the gold? This is related to your other post isn't it, the oil water question? What is it with all these fluid problems?
- #3
W24JBLV
- 10
- 0
mathPimpDaddy said:
Thanks for your help!
I "googled the topic and found what i was looking for!
No it's not related to the other problem, but it is in the same
chapter.
I couldn't resolve the oil/water problem i really needed it so i could have
40 points in my class which could help me get a C or B..
But what can i do!
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...
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question.
Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point?
Lets call the point which connects the string and rod as P.
Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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...
Similar threads
Hot Threads
-
The problem of one tube and two balls on a plane
- Started by crazy lee
- Replies: 60
- Introductory Physics Homework Help
-
Collision of a bullet on a rod-string system: query
- Started by palaphys
- Replies: 70
- Introductory Physics Homework Help
Recent Insights
-
Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect
- Started by Greg Bernhardt
- Replies: 7
- Quantum Physics
-
Insights What Exactly is Dirac’s Delta Function? - Insight
- Started by Greg Bernhardt
- Replies: 0
- General Math
-
Insights Relativator (Circular Slide-Rule): Simulated with Desmos - Insight
- Started by Greg Bernhardt
- Replies: 1
- Special and General Relativity
-
Insights Fixing Things Which Can Go Wrong With Complex Numbers
- Started by PAllen
- Replies: 7
- General Math
-
Insights Fermat's Last Theorem
- Started by fresh_42
- Replies: 91
- General Math
-
Insights Why Vector Spaces Explain The World: A Historical Perspective
- Started by fresh_42
- Replies: 0
- General Math