Answer to Question #330766 in Physical Chemistry for Alli

Question #330766

A 10kg block of aluminum (p=2700 kg/ m^3) is attached to a rope. Find the tension force in the rope if the block is in vacuum? What is the tension force in the rope if the block is in air (p=1.29 kg/m^3) and What is the tension force if the block is in water?


1
Expert's answer
2022-04-20T06:02:02-0400



I. Find the tension force in the rope if the block is in vacuum?


In vacuum medium FB = 0 because vacuum density = 0.

Rope tension T = F = mg = 10 kg * 9.81 m/s2 = 98.1 N.


II. What is the tension force in the rope if the block is in air (p = 1.29 kg/m3)?


V = 10kg / 2700kg/m3 = 0.0037 m3

FB = 1.29kg/m3 * 9.81m/s2 * 0.0037 m3 = 0.047 N.

T = F - FB = 98.1 - 0.047 = 98.053 N.


III. What is the tension force if the block is in water?


Water density is 1 g/L = 1000 kg/m3.

FB = 1000 kg/m3 * 9.81m/s2 * 0.0037 m3 = 36.3 N.

T = F - FB = 98.1 - 36.3 = 61.8 N.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS