Author Question: Which contracts more when the temperature is decreased? Equal volumes of A) iron. B) wood. C) ... (Read 130 times)

sjones · **on:** Jul 29, 2018

Which contracts more when the temperature is decreased? Equal volumes of

A) iron.
B) wood.
C) water.
D) helium.
E) all contract the same

Question 2

A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is

A) less than 30C.
B) at or about 30C.
C) more than 30C.