Which state of matter has both a fixed shape and a fixed volume

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)

Where should a carbon monoxide detector be mounted?

Consider lifting a box of mass m to a height h using two different methods: lifting the box directly or lifting the box using a pulley (as in the previous part). what is wd/wp, the ratio of the work done lifting the box directly to the work done lifting the box with a pulley?