if you closely examine a wood screw, you will see that the threads on it from a long wrapped around a cylinder.

a) wedge
b) pulley
c) inclined plane
d) wheel and axle

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?

The precision of a voltmeter is ±0.005 v. the accepted value for a measurement is 9.016 v. which measurement is in the accepted range? 9.005 v 9.006 v 9.018 v 9.025 v

2) the sun is wonderful source of energy. it is renewable and natural with few dangers. solar cells rely on the sun for energy. these cells would be more practical to use if they were