The Density of a 57-Kg (126-Lb)person Who Can Float in Salt

question 140

Multiple Choice

The density of a 57-kg (126-lb) person who can float in salt water but not in fresh water is about

• A)505 kg/m³ (32 lb/ft³)
• B)1010 kg/m³ (63 lb/ft³)
• C)2020 kg/m³ (126 lb/ft³)
• D)4040 kg/m³ (252 lb/ft³)
• And has a volume of about
• E)1 ft³.
• F)2 ft³.
• G)3 ft³.
• H)4 ft³.
• I)need more information

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Definitions:

Island Arc

An island arc is a curved chain of volcanic islands located at a tectonic plate margin, typically formed above a subducting plate where magma rises to the surface, creating new crust.

Mid-Ocean Ridge

An underwater mountain system formed by plate tectonics, characterized by a continuous volcanic mountain chain that encircles the globe.

Andes

A major mountain range along the western edge of South America, formed by the subduction of the Nazca Plate beneath the South American Plate.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic materials (such as ash and rock fragments) that flow down the slopes of a volcano during an explosive eruption.