The Center of Mass of a System of Particles Obeys

question 62

Multiple Choice

The center of mass of a system of particles obeys an equation similar to Newton's second law where:

• A) is the total internal force and m is the total mass of the system
• B) is the total internal force and m is the mass acting on the system
• C) is the total external force and m is the total mass of the system
• D) is the force of gravity and m is the mass of Earth
• E) is the force of gravity and m is the total mass of the system

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Definitions:

Developing Follicle

A developing follicle is a fluid-filled sac in the ovary that contains a maturing egg. It releases the egg during ovulation in the menstrual cycle.

Progesterone

A steroid hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species.

Estrogens

Female sex hormones produced by the ovary; promote the development and maintenance of female reproductive structures and of secondary sex characteristics.

Prolactin

A hormone produced by the anterior pituitary gland that stimulates milk production after childbirth and affects many other functions in the body, including metabolism, immune system regulation, and water and electrolyte balance.