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When NASA Was Communicating with Astronauts on the Moon, the Time

question 60

Multiple Choice

When NASA was communicating with astronauts on the Moon, the time from sending on the Earth to receiving on the moon was 1.33 s. Find the distance from Earth to the Moon. (The speed of radio waves is 3.00 * 108 m/s.)


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Illnesses caused by viruses, microscopic infectious agents that can infect all types of life forms, from animals and plants to microorganisms.

Risk Management

The identification, assessment, and prioritization of risks followed by the application of resources to minimize, control, and monitor the impact of unpredictable events.

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Acquired Immune Deficiency Syndrome, a life-threatening condition caused by the human immunodeficiency virus (HIV), which severely damages the immune system.

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