Density of body and density of liquid

Thread starter werson tan
Start date Feb 25, 2016
Tags

Body Density Liquid

AI Thread Summary

The average density of a body can equal the density of a fluid even if the object is not completely submerged. This occurs when the object displaces a volume of fluid equal to its weight, leading to equilibrium. The initial assumption that the object's density must be lower is incorrect in this context. The relationship between buoyancy and density is crucial in understanding this phenomenon. Therefore, it is possible for an object to float while having an average density equal to that of the fluid.

Feb 25, 2016

werson tan

Homework Statement

how can the average density of the body equal to the density of fluid(2nd photo) ? the object is not completely submerged in the liquid , so the density of object should be lower , right ?

Homework Equations

The Attempt at a Solution

Physics news on Phys.org

Feb 25, 2016

TSny

Science Advisor

Homework Helper

Gold Member

You are correct. The statement in the text is incorrect.

Thread 'Collision of a bullet on a rod-string system: query'

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...

View full post »

Thread 'Explain this asphalt sheen'

This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is The second part of the problem is exactly why you get this affect. And one more spoiler:

View full post »