Solving Pressure: P = 7.35N / (.24m x .2m)

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Homework Help Overview

The discussion revolves around calculating pressure using the formula P = F/A, where the force is given as 7.35 N and the area is the product of two dimensions, 0.24 m and 0.2 m. Participants are exploring the calculation process and addressing discrepancies in the expected result.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to calculate pressure and are questioning their calculator inputs. There is a focus on ensuring the correct order of operations and the use of parentheses in calculations.

Discussion Status

The discussion is ongoing, with participants providing guidance on how to correctly input the values into a calculator. There are indications of confusion regarding the calculation steps, but no consensus has been reached on the correct method.

Contextual Notes

Some participants are noting potential errors in the way calculations are being performed, particularly regarding the order of operations and the use of rounding in the initial force value.

jefgreen
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1. Relevant equations

P=F/A

2. The attempt at a solution

P= 7.35 N
-------------
(.24m)(.2m)



Answer= 150.0 PA. <-- That is the correct answer which my instructor gave me. Although, whenever I plus this into my calculator I wind up with 6.125 or 6.16666... (when rounding 7.35 N to 7.4 N). What am I doing wrong? :cry:
 
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bump 10 char
 
You're inputting the numbers into your calculator wrong. Do it one step at a time and mind your parentheses!
 
@RoyalCat: How should plug them in?
 
bump 10 char
 
somehow you're doing 7.4 divided by .24 divided by .2 so that the .2 comes out on top …

7.4*0.2/0.24 = 6.1666
 

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