Fred and Joanne Both Measure the Length of a Particular

question 95

Multiple Choice

Fred and Joanne both measure the length of a particular spaceship to be 100 m when it is on Earth. Joanne then gets into the spaceship and, after visiting the Moon, hurtles past Earth at a speed close to the speed of light. Fred, still on Earth, measures the length of the moving spaceship to be about 90 m. At the same time, Joanne (using her own meterstick) measures the length of the spaceship to be

• A) about 90 m because of the motion of the spaceship.
• B) 100 m because she is "at rest" on the spaceship.
• C) It cannot be concluded from the information given.
• D) about 110 m because both she and the spaceship are moving.

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Definitions:

Japanese Goods

Products manufactured in Japan, known for their quality in various industries including electronics, automobiles, and machinery.

Yen Appreciates

This occurs when the value of the Japanese yen increases relative to other currencies in the foreign exchange market.

Dollar Appreciates

An increase in the value of the US dollar compared to other currencies, making imports cheaper and exports more expensive.

Balance Of Payments

A record of all financial transactions between a country and the rest of the world.