A Block of Iron Has a Mass of 483 G

question 83

Multiple Choice

A block of iron has a mass of 483 g.What is the mass of a block of graphite that has the same volume as the block of iron? The following densities at 25°C are provided: magnesium, 1.7 g/cm³ ; graphite, 1.8 g/cm³ ; iron, 7.9 g/cm³.

• A)110 g
• B)2120 g
• C)6870 g
• D)34 g
• E)none of them are within 10 g of the right answer.

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Definitions:

Fixation

In psychology, a persistent focus on an idea, emotion, or object, potentially hindering emotional development.

Psychosexual Stage

A concept in Freudian psychology that refers to different stages of child development, each characterized by a different focus of libido (sexual energy).

Free Association

A method used in psychoanalysis where the patient freely expresses their thoughts without any self-censorship, aimed at uncovering unconscious thoughts.

Phallic Stage

The third stage in Freud's psychosexual development theory, occurring around age three to six, where the child's libido (sexual energy) focuses on the genitalia.