A Block of Mass M = 9

question 111

Multiple Choice

A block of mass m = 9.0 kg and speed V and is behind a block of mass M = 27 kg and speed of
As shown int the figure.The surface is frictionless,and the blocks suddenly collide and couple.After the collision,the blocks have a common speed of 0.90 m/s.How much kinetic energy of the blocks is lost due to the collision?

• A)8.6 J
• B)2.0 J
• C)4.6 J
• D)11 J
• E)31 J

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Definitions:

Experimental Group

In research, a group of subjects who are exposed to the variable under investigation, allowing researchers to assess the effect of this variable.

Control Group

A group in an experiment or study that does not receive the experimental treatment and is used as a benchmark to measure how the other tested subjects do.

Confounding Variables

Factors other than the independent variable that may cause a result in an experiment, potentially leading to incorrect conclusions.

Descriptive Methods

Research techniques used to describe characteristics of a population or phenomenon, involving observations and surveys without influencing the subjects.