Physics, 09.06.2021 20:40 geliyahmoore1
The resistance of a wire is 50ohm at 20°C. If the length and
diameter of the wire are 1m and 5 x 10-⁴m respectively,
calculate the resistivity of the material of the wire.
Answers: 2
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Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
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Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.
Answers: 1
The resistance of a wire is 50ohm at 20°C. If the length and
diameter of the wire are 1m and 5 x 10...
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