An object is lifted at constant speed a distance h above the surface of the Earth in a time t. The total potential energy gain of the object is equal to? a. the average force
applied
b. the object’s total
weight
c. the total work
done on the object
d. the object’s
acceleration

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?