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Find the length of red arc AB

Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal.

Correct answers: 43

The first user who solved this task is Roxana zavari.

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Here's Your Phone

After a recent college basketball game, the coach spotted a cell phone lying on the floor. He picked it up and handed it to one of the referees, saying, "Here's your phone."
"What makes you think its mine?" the ref asked.
"Easy," the coach replied. "It says you missed 13 calls!"

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R. Walter Cunningham

Born 16 Mar 1932. Ronnie Walter Cunningham is an American astronaut and civilian participant in the Apollo 7 mission , in which the first manned flight of Apollo Command and Service modules was made. On 11 Oct 1968, he occupied the lunar module pilot seat for the eleven-day flight of Apollo 7. With Walter M. Schirra, Jr., and Donn F. Eisele, he participated in maneuvers enabling the crew to perform exercises in transposition and docking and lunar orbit rendezvous with the S-IVB stage of their Saturn IB launch vehicle; in test ignitions of the service module propulsion engine; in measuring the accuracy of performance of all spacecraft systems; and provided the first effective television transmission of onboard crew activities.

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