Explain the difference between class characteristics and individual characteristics. name four class characteristics of fired bullets that you could use a difference in the class characteristic to eliminate an item. name three different class characteristics of fired cartridge cases that you could use a difference in the class characteristic to eliminate an item.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Does heating a metal wire increase or decrease its electrical resistance? why?