The Total Force on an Object Is Zero

question 4

Multiple Choice

The total force on an object is zero. The angular momentum of the object

• A)is zero.
• B)may be changing.
• C)can only be changing direction.
• D)is constant.
• E)can only be changing magnitude.

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Definitions:

Vital Capacity

The maximum amount of air a person can expel from the lungs after a maximum inhalation, used to assess the health of respiratory systems.

Lung Volume

The total amount of air that the lungs can hold, varying with age, size, fitness, and disease states.

Lung Elasticity

The ability of lung tissue to return to its original size and shape after being stretched or compressed, essential for normal breathing.

Expiratory Reserve Volume (ERV)

The additional amount of air that can be forcibly exhaled after a normal exhalation, reflecting the capacity for voluntary lung deflation beyond passive expiration.