The mach number M of an airplane is the ratio of its speed to the speed of sound.When an airplane travels faster than the speed of sound, the sound waves form a cone behind the airplane (see figure) .The mach number is related to the apex angle θ of the cone by 
. 
Rewrite the equation in terms of θ.
Definitions:
Nurse Manager
A registered nurse who oversees the nursing staff in a healthcare facility, managing budgets, schedules, and patient care standards.
Annual Goals
Objectives or targets set to be achieved within a twelve-month period, often related to personal, educational, or professional development.
Case Manager
A professional who coordinates healthcare and social services for individuals, aiming to ensure that they receive appropriate care while maximizing efficiency and minimizing costs.
Joint Replacement
A surgical procedure in which damaged parts of a joint are removed and replaced with artificial components.
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