Ablock on the end of a spring is pulled to position x = a and released from rest. in one full cycle of its motion through what total distance does it travel
a) 0.5 a
b) a
c) 2a
d) 4a
and why?

Aman pushes on a trunk with a force of 250 newtons. the trunk does not move. how much positive work is done on the trunk? 0.0 j -250 j 250 j 125 j

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

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?