A Projectile Is Ejected from a 25-M High Tower with a Velocity

question 6

Multiple Choice

A projectile is ejected from a 25-m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars.What is the ratio of maximum height above ground level on Mars to Earth (i.e.,h_max(Mars) / h_max(Earth) ) ? (Assume g_Mars = 0.38g_Earth)

• A)6.2
• B)0.60
• C)1.1
• D)2.6
• E)1.7

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Definitions:

Oligodendrocytes

Glial cells in the central nervous system that produce myelin, a substance that forms a sheath around nerve fibers to facilitate electrical impulse conduction.

Phagocytose Bacteria

The process by which cells, particularly immune cells like macrophages, engulf and digest bacteria.

Astrocytes

Type of glial cell in the brain and spinal cord that performs multiple supportive functions for neurons, including maintaining the blood-brain barrier and regulating neurotransmitter levels.

Microglia

Specialized type of glial cell that acts as the main form of active immune defense in the central nervous system.