Two Supports, Made of the Same Material and Initially of Equal

question 51

Multiple Choice

Two supports, made of the same material and initially of equal length, are 2.0 m apart.A stiff board with a length of 4.0 m and a mass of 10 kg is placed on the supports, with one support at the left end and the other at the midpoint.A block is placed on the board a distance of 0.50 m from left end.As a result the board is horizontal (that is, the downward force on each support is the same) .The mass of the block is:

• A)0 kg
• B)2.3 kg
• C)6.6 kg
• D)10 kg
• E)20 kg

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Definitions:

Managing his Emotions

The process of recognizing, understanding, and appropriately expressing one's emotions, leading to effective emotional regulation and well-being.

Self-motivation

The ability to drive oneself to take initiative and action to pursue goals and complete tasks without external influence or pressure.

Empathy

The capability to comprehend and empathize with someone else's emotions.

Arthur Jensen

A controversial American psychologist known for his work in psychometrics and differential psychology, particularly his research on intelligence and the heritability of IQ.