College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
1. What is the principle type of drag experienced by a skydiver when their parachute has been opened? 2. What is an orifice plate used to measure? 3. A hot cup of coffee is cooling by transferring its heat into a room. What can said about the entropy of the room? 4. What term is used to describe a thermodynamic process where there is no change in volume between the start and end? 5. What does the symbol Q represent and what are its units? 6. In the equation pV = mRT, what does the symbol R represent? 7. What is the principle heat transfer medium for convection? 8. As a fluid passes through a diffuser, the cross sectional area increases. What effect does this have on its velocity if the mass flow rate and density remain constant? 9. What is the critical Reynolds number for internal flow? 10. The Steady Flow Energy Equation (SFEE), as shown below, embodies three forms of energy. Name the three forms of energy. zpvín + Pin + Pgzin =5pvout + Pout + Pgzout 11. Sketch a p-v diagram for a fluid and indicate a point where the state of the fluid would be saturated vapour. 12. Hot water flowing through a heating pipe has a Reynolds number of 6,500. What does this indicate? 13. What law does a polytropic process obey?
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Transcribed Image Text:1. What is the principle type of drag experienced by a skydiver when their parachute has been opened? 2. What is an orifice plate used to measure? 3. A hot cup of coffee is cooling by transferring its heat into a room. What can said about the entropy of the room? 4. What term is used to describe a thermodynamic process where there is no change in volume between the start and end? 5. What does the symbol Q represent and what are its units? 6. In the equation pV = mRT, what does the symbol R represent? 7. What is the principle heat transfer medium for convection? 8. As a fluid passes through a diffuser, the cross sectional area increases. What effect does this have on its velocity if the mass flow rate and density remain constant? 9. What is the critical Reynolds number for internal flow? 10. The Steady Flow Energy Equation (SFEE), as shown below, embodies three forms of energy. Name the three forms of energy. zpvín + Pin + Pgzin =5pvout + Pout + Pgzout 11. Sketch a p-v diagram for a fluid and indicate a point where the state of the fluid would be saturated vapour. 12. Hot water flowing through a heating pipe has a Reynolds number of 6,500. What does this indicate? 13. What law does a polytropic process obey?
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