If a Projectile Is Fired with an Initial Velocity Of v

question 47

Multiple Choice

If a projectile is fired with an initial velocity of $v _ { 0 }$ meters per second at an angle $\alpha$ above the horizontal and air resistance is assumed to be negligible, then its position after $t$ seconds is given by the parametric equations
$x = \left( v _ { 0 } \cos \alpha \right) t , y = \left( v _ { 0 } \sin \alpha \right) t - \frac { 1 } { 2 } g t ^ { 2 }$ where $g$ is the acceleration of gravity $\left( 9.8 \mathrm {~m} / \mathrm { s } ^ { 2 } \right)$ . If a gun is fired with $\alpha = 55 ^ { \circ }$ and $v _ { 0 } = 440 \mathrm {~m} / \mathrm { s }$ when will the bullet hit the ground?

• A) \(t = 244 \mathrm {~s}\)
• B) \(t = 74 \mathrm {~s}\)
• C) \(t = 344 \mathrm {~s}\)
• D) \(t = 124 \mathrm {~s}\)
• E) \(t = 224 \mathrm {~s}\)

Recognize and record sales returns and allowances.

Distinguish between general and administrative expenses and other expense categories.

Understand the concepts of inventory shrinkage, its causes, and the recording process.

Differentiate between perpetual and periodic inventory systems, and their implications on financial reporting.

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Definitions:

Variable Ratio Schedule

A reinforcement strategy in behaviorism where a response is reinforced after an unpredictable number of responses, making it very powerful in maintaining behavior.

Variable Interval Schedule

A reinforcement schedule in operant conditioning where a response is rewarded after an unpredictable amount of time has passed, enhancing response consistency.

Fixed Interval Schedule

A type of conditioning schedule where a reward or reinforcement is administered after a set period of time has passed, assuming the required response has been made.

Continuous Reinforcement

A method of learning that involves giving a reward after every correct response in order to reinforce the desired behavior.