If you push in a door one force is directed into the door . according to newtons 3rd law what is the direction of the second force
a. towards the floor
b. towards the ceiling
c. into the door
d. into your hands

Protons and neutrons are found within the nucleus of an atom

Which atomic model was proposed as a result of j. j. thomson’s work?

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?