5. The temperature of air in a foundry increases when molten metals cool and solidify. Suppose 9.9 X 10 J of energy is added to the sur- rounding air by the solidifying metal. The air's temperature increases by 55 K, and the air has a specific heat capacity of 1.0 x 100 J/kg. K. a. What is the mass of the heated air? b. Assuming a density of 1.29 kg/m', what is the heated air's volume?​

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!