The Roche Limit Tells Us About the Point on a Rotating

question 55

Multiple Choice

The Roche limit tells us about the point on a rotating planet where the gravitational force at the equator is just equal to the necessary centripetal force needed for rotation. Assuming the planet to be a uniform sphere of density 5520 kg/m³, find the shortest period of rotation possible before exceeding the Roche limit G = 6.67* 10^-11 N · m²/kg²) .

• A) None of the following.
• B) 50 min
• C) 150 min
• D) 48 min
• E) 85 min

Recognize the significance of fixed, variable, and marginal costs in determining profit-maximizing output levels.

Interpret graphs and tables to determine cost relationships and cost behavior in a firm.

Analyze the role of economies and diseconomies of scale in shaping cost structures.

Distinguish between the different ranges of the cost curves based on the law of diminishing returns.

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Definitions:

Metaphase

A stage of cell division (mitosis and meiosis) where chromosomes line up at the cell's equator before being separated into the daughter cells.

Cytokinesis

Cytokinesis is the division of the cytoplasm of a parental cell into two daughter cells, occurring immediately after nuclear division in the cell cycle.

Midplane

An imaginary plane that divides a body into two equal halves, commonly used in anatomy and developmental biology to describe symmetry.

Bacterial Chromosome

The self-replicating genetic structure of bacteria, usually a circular DNA molecule containing all the necessary information for the life of the cell.