1) A ballerina weighing 60 Kg (130 pounds) jumps in the air 1 meter (3 feet). What is her potential energy at the top of her jump ?

The p sub shell can hold up to 8 electrons in an atom. true or false?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

Introduction of drugs into the gastrointestinal tract is a form of administration. a. enteral b. topical c. parenteral d. inhalation