A Firecracker Breaks Up into Two Pieces, One Has a Mass

question 64

Multiple Choice

A firecracker breaks up into two pieces, one has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s and the second has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s. What is the total momentum of the two pieces?

• A) 361 kg∙m/s at 56.3° from the x-axis
• B) 93.5 kg∙m/s at 28.8° from the x-axis
• C) 21.2 kg∙m/s at 39.5° from the x-axis
• D) 361 kg∙m/s at 0.983° from the x-axis
• E) 21.2 kg∙m/s at 56.3° from the x-axis

Comprehend the significance of cognitive processes and their impact on human behavior.

Understand the principles of behaviorism and its focus on observable behavior.

Recognize the contributions and limitations of Freudian psychology and its impact on the field.

Acknowledge the evolution of contemporary psychology and its approach to the mind-body issue.

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Definitions:

Marginal Probabilities

The probability distribution of the random variables individually, without regard to any possible correlations between them.

Conditional Probabilities

The likelihood that an event will happen, given the precondition of another event's occurrence.

Joint Probabilities

The likelihood of two occurrences taking place simultaneously.

Marginal Probabilities

The probability of a single event occurring, irrespective of the outcomes of other variables.