Suppose That During the First Hour and 15 Minutes of a Physics

question 2

Multiple Choice

Suppose that during the first hour and 15 minutes of a physics experiment, the surface temperature of a small iron block is modeled by the exponential function f(t) = 15e ^t , where f(t) is the Celsius temperature t hours after the experiment begins. Compute the average rate of change of temperature over the second half hour of the experiment (i.e., over the interval $0.5 \leq t \leq 1$ ) . Round the answer to one decimal place.

• A) \(32.1 ^ { \circ } \mathrm { C } \text { hour }\)
• B) \(31.8 ^ { \circ } \mathrm { C } / \text { hour }\)
• C) \(41 ^ { \circ } \mathrm { C } / \text { hour }\)
• D) \(32.2 ^ { \circ } \mathrm { C } / \text { hour }\)
• E) \(33.1 ^ { \circ } \mathrm { C } / \text { hour }\)

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Definitions:

Extinction

In psychology, the gradual weakening and disappearance of a conditioned response tendency.

Reinforcement

A concept in behavioral psychology where a behavior is strengthened or increased by following it with a positive or rewarding stimulus.

Stimulus Discrimination

The ability to differentiate between two or more stimuli, responding only to the one that is conditioned while ignoring the others.

Learned Response

A reaction or behavior that is developed as a result of experience or conditioning.