A Tank Holds a 1

question 12

Multiple Choice

A tank holds a 1.44-m thick layer of oil that floats on a 0.96-m thick layer of brine.Both liquids are clear and do not intermix.Point O is at the bottom of the tank,on a vertical axis.The indices of refraction of the oil and the brine are 1.40 and 1.52,respectively.A ray originating at O crosses the brine-oil interface at a point 0.60 m from the axis.The ray continues and emerges into the air above the oil.What is the angle that the ray in the air makes with the vertical?

• A) 48°
• B) 51°
• C) 54°
• D) 57°
• E) 60°

Identify the key elements and visual trademarks of film noir.

Understand the role of film noir in reflecting postwar adjustments and its elements of pessimism and insecurity.

Appreciate the influence of political events, such as the blacklist and HUAC, on film content and industry practices.

Acknowledge the adaptability of Hollywood in response to legal and economic challenges, including shifts to the international market and changing business practices.

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Definitions:

Accounts Receivable

Unpaid amounts by customers for goods or services already supplied by a company.

Write Off

The accounting action of declaring that an asset is partially or totally worthless, reducing its value to zero in the books.

Contra-Revenue Account

An account that is used to record reductions in gross revenue, such as sales returns, allowances, and discounts.

Allowance Method

An accounting technique used to account for bad debts by estimating uncollectible accounts at the end of each period.