Why is it incorrect to say "we ran out of gas", when referring to your cars energy source?

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k