A 50-Kg Satellite Circles the Earth in an Orbit with a Period

question 46

Multiple Choice

A 50-kg satellite circles the Earth in an orbit with a period of 120 min. What minimum energy is required to change the orbit to another circular orbit with a period of 180 min? (Earth: radius = 6.4 × 106 m, mass = 6.0 × 1024 kg)

• A)2.9 × 108 J
• B)3.5 × 108 J
• C)4.1 × 108 J
• D)4.7 × 108 J
• E)5.9 × 108 J

Describe the role and components of the immune system in defending against illness.

Recognize the importance of psychological therapy in treating physical illnesses such as cancer.

Explain the contribution of lifestyle factors, including smoking and diet, to health outcomes.

Understand psychoneuroimmunology and how psychological factors influence the immune system.

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Definitions:

Phylum Cnidaria

A taxonomic rank and classification category that includes jellyfish, corals, and other sea anemones characterized by cnidocytes, specialized cells for capturing prey.

Exclusively Terrestrial

Referring to organisms or features that exist solely on land, without any aquatic or aerial adaptation.

Chilopods

A class of arthropods commonly known as centipedes, characterized by elongated bodies and a pair of legs per body segment.

Arachnids

Eight-legged arthropods, such as spiders, scorpions, ticks, and mites.