Airlines allow a maximum of 50 lb for each suitcase a passenger brings along. a) How many slugs of mass makes up the suitcase and its contents? b) What is this mass in grams? c) What is the weight in Newtons?

How does convection affect our atmosphere? our layers of earth? our oceans?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Blank liquids and gases exert a buoyant force on objects placed in them