A hanging block oscillating on the end of a spring passes through equilibrium at a speed of 2.0 m/s. It returns to equilibrium 0.75 s later. Calculate the total distance that it traveled between these two moments in its vibration. (Hint: How is the time related to the period? How is the distance traveled related to the amplitude?)

The diagram shows a person using a piece of gym equipment to lift weight which best describe the body in terms of simple machine

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

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?