Conversion using factor label method

  • Thread starter Thread starter rose ah
  • Start date Start date
  • Tags Tags
    Method
AI Thread Summary
The discussion centers on the factor label method, which is a technique used for unit conversion in calculations. Participants emphasize the importance of demonstrating understanding by explaining the method in one's own words before seeking help. A specific example involves calculating charges between companies while considering units. Additionally, there is a cautionary note about consulting experts for real-life applications, particularly regarding medication dosages, as mathematics alone may not suffice. The conversation highlights that the query is related to a homework problem rather than a practical scenario.
rose ah
Messages
1
Reaction score
0
Homework Statement
1 .You want to have a 30 m2 room in your house retiled. A company called Wasta Tiles will do it for $50
per m2
. Another company, Zaki Floors, will do it for $4 per ft2
. Which company has the lower price?
Justify your answer using the factor label method. 1 m2 = 10.8 ft2



2. A patient needs 0.50 mg of a certain drug per 10.0 pounds of body weight. Each pill contains 4.00 mg of
the drug. If the patient weighs 73.0 kg, how many pills should the patient be given? (1 kg weighs 2.2
pounds). Use the factor label method
Relevant Equations
1 kg weighs 2.2 pounds
Kindly help me out
 
Physics news on Phys.org
rose ah said:
Kindly help me out
You need to show some work first. For instance, please tell us in your own words, what is the "factor label method".
 
For 1: Money charged by one company is already given. Calculating the charges by the other company (while keeping the unit in mind) will solve the problem.

For 2: Consult an expert! Only Mathematics is not sufficient to know the correct dosage of a medicine!
 
phymat said:
For 2: Consult an expert! Only Mathematics is not sufficient to know the correct dosage of a medicine!
This is a homework problem, not a real-life case.
 
  • Like
Likes topsquark and rose ah
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Back
Top