An Astronaut Aboard a Spacecraft Enroute to Mars with a Speed

question 16

Multiple Choice

An astronaut aboard a spacecraft enroute to Mars with a speed of 0.5c relative to Earth observes a meteor approaching head on at a speed of 0.9c.What is the speed of the meteor relative to Earth?

• A)1.4c
• B)-0.73c
• C)0.4c
• D)2.55c
• E)None of these is correct.

Recognize the role of chlorophyll and other pigments in capturing light energy.

Describe the significance of the Calvin cycle in the synthesis of carbohydrates.

Explain how light energy is transformed into chemical energy during photosynthesis.

Understand the role of water in photosynthesis and the origin of oxygen produced during the process.

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Definitions:

Tax Credits

Government incentives that reduce the amount of tax owed, dollar for dollar, to encourage certain activities or investments.

Energy Efficiency

The practice of using less energy to provide the same service or achieve the same result.

Green Roofs

Rooftops covered with vegetation and soil or a growing medium, installed over a waterproof membrane, to improve building insulation, reduce urban heat islands, and create habitats.