-A Block of Mass M = 7

question 23

Multiple Choice

-A block of mass m = 7.6 kg,moving on a frictionless surface with a speed v_i = 7.6 m/s,makes a perfectly elastic collision with a block of mass M at rest.After the collision,the 7.6 kg block recoils with a speed of v_f = 2.5 m/s.In the figure,the blocks are in contact for 0.20 s.The average force on the 7.6 kg block,while the two blocks are in contact,is closest to:

• A)384 N
• B)336 N
• C)289 N
• D)241 N
• E)194 N

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Definitions:

Hemispheric Activity

The functioning or activity level of the brain's two hemispheres, often discussed in terms of differences in cognitive processing or emotional response.

Depression

A mental health disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.

Temperament

Refers to the innate aspects of an individual's personality, such as their disposition or emotional nature, which is often thought to be present from birth.

Intelligence

The capacity for logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving.