What units are BTU compatible with?

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The discussion revolves around the compatibility of BTU with other units such as pounds, feet, and seconds in energy equations. There is confusion about whether to express work in BTU, Joules, or Calories when given a problem involving these units. It is suggested that if working in feet and pounds, BTU should be converted to foot-pounds for consistency. The emphasis is on adhering to the units provided by the professor rather than converting to metric. Understanding the relationship between these units is crucial for solving the problem accurately.
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Homework Statement



Im given a problem where I am supposed to utilize the concept of conservation of energy to find an object initial velocity. There is a force that works on an object. They give me the amount of work done in BTU and the other units are in lb, ft/sec, ft/sec^2...Then I confused myself and didnt know if BTU and energy equations with these units work together? Usually I would just convert things to metric but my Thermo Prof wants us to keep the units in what they are given as..So is work supposed to be in BTU or Joules or Calories?

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The Attempt at a Solution

 
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mattwkeller said:
Usually I would just convert things to metric but my Thermo Prof wants us to keep the units in what they are given as..So is work supposed to be in BTU or Joules or Calories?
If you are working in feet and pounds, express BTU in foot pounds. And mass in slugs.
 

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