The Resistance $R$ Of a Wire Varies Directly as Its Length $L$

question 140

Essay

The resistance $R$ of a wire varies directly as its length $L$ and inversely as the square of twice its radius.
(a) Write an equation that expresses this direct variation.
(b) Find the constant of proportionality if a wire $2.4$ m long and
$0.004$ m in diameter has a resistance of
$150$ ohms.
(b), find the diameter of a wire that has a resistance of $90$ ohms and is
$1.2$ m long.
(c) Using the constant of proportionality from part

Understand the development of visual and auditory perception in infancy.

Grasp the concept of phonemic distinctions and its relevance to language acquisition.

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Definitions:

Negative Punishment

A behavioral modification technique involving the removal of a desirable stimulus to decrease the likelihood of a behavior occurring again.

Time-Out

A behavioral modification technique involving temporary isolation or removal from a situation to decrease undesirable behavior.

Spanked

The act of hitting someone, usually a child, with an open hand as a form of punishment.

Discrimination

Unjust or prejudicial treatment of different categories of people or things, especially on the grounds of race, age, or gender.