Before the track season started, avery could run a mile in 7: 10. avery set a goal to run the mile in 6: 30 by the end of the track season. she finished the season with a 6: 50 in the mile. she did not reach her goal of 6: 30 but she improved by 20 seconds. '

Identify the arrows that show the correct direction of heat transfer. 66°f 112°f 98°f

What properties of a moving object are used in determining the object's energy of motion

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.