A Ball Is Hit Upward with an Initial Velocity of 128

question 71

Multiple Choice

A ball is hit upward with an initial velocity of 128 feet per second. After seconds, its height is given by the function . How many seconds does the ball take to reach its maximum height?

• A)4.0 seconds
• B)4.5 seconds
• C)5.0 seconds
• D)5.5 seconds

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Definitions:

Norepinephrine

A neurotransmitter and hormone that is involved in response to stress, increases arousal, and alertness, and plays a role in the body's "fight or flight" reaction.

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The anatomical system of the urinary and reproductive organs, often considered together due to their close proximity and shared functions in some contexts.

Polarized

Divided into two sharply contrasting groups or sets of opinions or beliefs.

All-Or-Nothing Principle

The principle that once the electrical impulse reaches a certain level of intensity (its threshold), it fires and moves all the way down the axon without losing any intensity.