Spaceship A, Traveling Past Us at 0

question 15

Multiple Choice

Spaceship A, traveling past us at 0.7c, sends a message capsule to spaceship B, which is in front of A and is traveling in the same direction as A at 0.8c relative to us.The capsule travels at 0.95c relative to us.A clock that measures the proper time between the sending and receiving of the capsule travels:

• A)in the same direction as the spaceships at 0.7c relative to us
• B)in the opposite direction from the spaceships at 0.7c relative to us
• C)in the same direction as the spaceships at 0.8c relative to us
• D)in the same direction as the spaceships at 0.95c relative to us
• E)in the opposite direction from the spaceships at 0.95c relative to us

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Definitions:

Sporophyte

The diploid phase in the life cycle of plants and algae that produces spores.

Xylem

A type of vascular tissue in plants responsible for the transport of water and minerals from the roots to other parts of the plant.

Phloem

A type of vascular tissue in plants responsible for transporting sugar (photosynthate) from leaves to other parts of the plant.

Evolutionary History

The chronicle of lineage development, adaptation, and diversification of organisms over time.