Suppose That Mercury Grew to Its Present Size in 1

question 24

Multiple Choice

Suppose that Mercury grew to its present size in 1 million years,through the accretion of particles averaging 100 g each.On average,how many particles did Mercury capture each second? Note: Mercury has a mass of 3.3×10²³ kg and a radius of 2439 km.

• A)about 67 particles per second
• B)about 100 million particles per second
• C)about 100 billion particles per second
• D)about 3.3×10²¹ particles per second

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Definitions:

Drive

An innate, biologically determined urge to attain a goal or satisfy a need.

Worker Motivation

The set of internal and external factors that stimulate workers to take actions that lead to achieving work-related goals.

Set Point Theory

A theory suggesting that the body regulates its weight and energy balance through internal controls, maintaining a stable weight over time.

Extrinsic Motivation

Motivation that is driven by external rewards such as money, fame, grades, or praise.