Physics Help Forum density,volume,mass
 User Name Remember Me? Password

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Nov 22nd 2009, 04:00 PM #1 Junior Member   Join Date: Nov 2009 Posts: 9 density,volume,mass a solid aluminium rod of length 1.2mhas a uniform diameter of 52mm. The density of aluminium is 2700kgm-3 ...calculate (a) its volume in m^3 (b) its mass in kg any help much appreciated
 Nov 22nd 2009, 04:06 PM #2 Banned   Join Date: Aug 2009 Location: UK Posts: 240 a= 0.0025484 m^3 b=6.88176 kg a solid aluminium rod of length 1.2mhas a uniform diameter of 52mm. The density of aluminium is 2700kgm-3 ...calculate (a) its volume in m^3 (b) its mass in kg any help much appreciated Last edited by Paul46; Nov 22nd 2009 at 04:22 PM. Reason: mistake
 Nov 22nd 2009, 07:37 PM #3 Senior Member     Join Date: Apr 2008 Posts: 815 Density = mass/volume. You are given the dimensions of the cylinder so you can work out the volume. (Do you know how to?). Once you've done that, you have the density and the volume, using the first equation I gave you can get the mass. __________________ Isaac If the problem is too hard just let the Universe solve it.
 Nov 23rd 2009, 03:10 AM #4 Junior Member   Join Date: Nov 2009 Posts: 9 i should be able to manage that.im just not familiar with the prefix 1.2mhas? thanks
Nov 23rd 2009, 06:51 AM   #5
Senior Member

Join Date: Apr 2008
Posts: 815
 Originally Posted by decoy808 i should be able to manage that.im just not familiar with the prefix 1.2mhas? thanks
The length of the rod is 1.2 meter.
The sentence should read "a solid aluminium rod of length 1.2m has a uniform diameter of 52mm."
__________________
Isaac
If the problem is too hard just let the Universe solve it.

 Tags density, mass, volume

 Thread Tools Display Modes Linear Mode

 Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post Tutan Electricity and Magnetism 2 Dec 1st 2015 08:40 AM clockworks204 Kinematics and Dynamics 3 Jun 17th 2010 03:42 AM unstopabl3 Thermodynamics and Fluid Mechanics 3 Jun 2nd 2010 12:03 AM Apprentice123 Kinematics and Dynamics 0 May 20th 2009 03:12 PM asi123 Advanced Mechanics 0 Oct 25th 2008 07:51 AM