What is the value for work and is it done on or by the system when 87.33 kJ of heat is absorbed and the internal energy is 1,999 J

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

Which two particles are found in the center of an atom