Length Contraction: Two Space Stations Are at Rest Relative to Each

question 36

Multiple Choice

Length contraction: Two space stations are at rest relative to each other and are 6.0 × 10⁷ m apart, as measured by observers on the stations. A spaceship traveling from one station to the other at 0.90c relative to the stations passes both of them, one after the other. As measured by an observer in the spaceship, how long does it take to travel from one station to the other? (c = 3.00 × 10⁸ m/s)

• A) 97 ms
• B) 220 ms
• C) 510 ms
• D) 58 ms
• E) 39 ms

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Definitions:

Depletion Expense

The allocation of the cost of natural resources, such as minerals, oil, or timber, over their productive life.

Salvage Value

Salvage value is the estimated residual value of an asset at the end of its useful life, determining how much it can be sold for or disposed of.

Double-Declining-Balance Depreciation

An accelerated depreciation method that doubles the depreciation rate of an asset, causing it to lose value quicker than under traditional linear depreciation methods.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded for an asset since it was put into use.