A) the Integrand Is Independent of Time
B) the Limits

question 2

Multiple Choice

$$\text { For a fixed control volume, the reason why } \frac { d } { d t } \int _ { \text {c.. } } \rho \eta d V = \int _ { \text {c. } . } \frac { \partial } { \partial t } ( \rho \eta ) d V \text { is: }$$

• A) The integrand is independent of time
• B) The limits of integration are independent of time
• C) The flow is a steady flow
• D) The quantity ρη is independent of position

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Definitions:

Negative Reinforcement

A process in behaviorism where a behavior increases in frequency because it is followed by the removal or avoidance of an unpleasant stimulus.

Soft Drink Machine

A vending machine that dispenses carbonated beverages, typically operated by inserting money or tokens.

Negative Reinforcement

A behavioral principle where the removal of an undesirable or aversive stimulus following a behavior increases the likelihood of that behavior being repeated.

Intermittent Reinforcement

A conditioning schedule where a response is reinforced only some of the time, known to create strong and persistent behaviors.