A 50-G Particle Moving 60 M/s Collides with a 2 $\degree$

question 24

Multiple Choice

A 5.0-g particle moving 60 m/s collides with a 2.0-g particle initially at rest.After the collision each of the particles has a velocity that is directed 30 $\degree$ from the original direction of motion of the 5.0-g particle.What is the speed of the 2.0-g particle after the collision?

• A)72 m/s
• B)87 m/s
• C)79 m/s
• D)94 m/s
• E)67 m/s

Define and explain sudden infant death syndrome (SIDS) and its significance.

Understand the characteristics and differences between various aquatic ecosystems and zones.

Comprehend the physical and biological features of different aquatic zones including littoral, limnetic, profundal, and benthic zones.

Identify and describe major biomes, including their climate, vegetation, and geographic distribution.

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Definitions:

Folded Surfaces

Structures in biological systems that have been folded to increase their surface area, enhancing their capacity for processes such as absorption or secretion.

Microvilli

Tiny, finger-like protrusions on the surface of some epithelial cells that increase surface area for absorption and secretion.

Intercalated Disc

Specialized cell-cell junctions between cardiac muscle cells that facilitate the synchronized contraction of the heart.

Gap Junctions

Specialized intercellular connections that facilitate the direct transfer of ions and small molecules between the cytoplasms of adjacent cells.