A Celestial Object Called a Pulsar Emits Its Light in Short

question 57

Short Answer

A celestial object called a pulsar emits its light in short bursts that are synchronized with its rotation. A pulsar in the Crab Nebula is rotating at a rate of 30 revolutions/second. What is the maximum radius of the pulsar, if no part of its surface can move faster than the speed of light (3 × 10⁸ m/s)?

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Definitions:

Sealed Auction

An auction format in which all bids are submitted simultaneously in sealed envelopes, and the highest bid wins without bidders knowing the bid amounts of others.

Oral Auction

In this auction type, bidders submit increasing bids until only one bidder remains. The item is awarded to the last remaining bidder.

Oral Auction

An auction conducted by an auctioneer who calls out prices of items for which participants physically present place bids verbally.

Expected Selling Price

The price at which a seller anticipates being able to sell a product or service.