Describes what happens to the amplitude of a wave as it moves away from its source and why this occurs.

Explain which three marine habitats would have the least access to phytoplankton, and why.

What instrument can you use to measure the circumference of your waist?

Two children playing on a spinning merry-go-round take turns riding and pushing. The merry-go-round slows, stops, and then speeds up again as the children switch places.

A man is trapped in a room. The room has only two possible exits: two doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters.

Light traveling through air at 3.00 · 10^8 m/s reaches an unknown medium and slows down to 2.00 · 10^8 m/s. What is the index of refraction of that medium? n =

Who were the 26 or 27 scientists that found the elements on the periodic table?

What particle is used as a beam to treat cancer

Heat engine x has an efficiency of 67%. heat engine y has an efficiency of 82%. which best compares these two heat engines?

How far away is venus from the sun

Absolute differences between each observed mass and the accepted value, divided by the accepted value, multiplied by 100%