Steel has been made from iron ore since ancient times. Modern steel is stronger and more resistant to rust. What is the most likely reason that this change has occurred? *

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?