Problem 19.12 Constants I Peri A hot iron horseshoe (mass = 0.35 kg ), just forged, is dropped into 1.45 L of water in a 0.40 kg iron pot initially at 21.0 °C. Part A If the final equilibrium temperature is 29.0 °C, estimate the initial temperature of the hot horseshoe. Express your answer using two significant figures. να ΑΣφ T = °C Submit Request Answer

18.9 Please help me answer this physics question

Constants Periodic Table Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. On a warm day (92 °F), an air-filled balloon occupies a volume of 0.300 m³ and has a pressure of 24.0 lb/in?. Part A If the balloon is cooled to 32 °F in a refrigerator while its pressure is reduced to 14.7 lb/in?, what is the volume of the air in the container? (Assume that the air behaves as an ideal gas.) nνα ΑΣφ V = 0.170 m3 Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining

11