A carnival Ferris wheel has a 15-m radius and completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his lowest point during the ride?
a. 5.7 m/s2 downward
b. 4.1 m/s2 upward
c. 14 m/s2 downward
d. 4.1 m/s2 downward
e. 19 m/s2 downward
b
Physics & Space Science
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A) SBc. B) Pec. C) E6. D) Irr I. E) E3.
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Astronomers know the universe is expanding because
A) everything is moving away from us. B) all stars are moving away from us. C) most galaxies are moving away from us. D) galaxies farther away are moving away from us faster. E) there is a cosmic microwave background.
Physics & Space Science
The focal length of the objective of a telescope is much longer than the focal length of the eyepiece
Indicate whether the statement is true or false
Physics & Space Science
Energy
a)is the same thing as power. b)is a vector quantity. c)is measured in the same units as work. d)has the same units of velocity. ?
Physics & Space Science