“Don’t do unto others what you don’t want others to do unto you”, a famous line of Confucius that is somehow related to the 1st law of thermodynamics. The saying also means that the treatment of other people to you depends on the behavior you show them. Likewise, the 1st law of thermodynamic tells that the amount of energy that a system gives off is equal to the amount of energy that the surrounding will received. In your own personal encounter, give one great experience of yours wherein the saying is applied or connected. What have you learned from that experience?

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative