At Six Flags New England in Agawam, Massachusetts, a ride called the
Cyclone is a giant roller coaster that ascends a 34.1-m hill and then drops
21.9 m before ascending the next hill. The train of cars has a mass of 4727 kg.
a) How much work is required to get an empty train of cars from the ground
to the top of the first hill?
b) What power must be generated to bring the train to the top of the first hill in 30.0 s?
c) How much PE is converted into KE from the top of the first hill to the bottom of the 21.9-m drop?
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Ответ:
A. An early form of chemistry that people used to try to turn metal
into gold.
Explanation:
Alchemy is indeed an early form of chemistry in which people try to turn metal into gold.