HELPP...An object experiences a force of 55N upward and 40 N downward. What is the net force? a. 15 N downward c. 15 N upward b. 55 N downward d. 40 N upward I JUST MAKE SURE I AM RIGHT ✅ ​

Protons and neutrons are found within the nucleus of an atom

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.