What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70. cm when the bike is moving 8.0 m/s?
A) 91 m/s2
B) 1.8 × 102 m/s2
C) 2.7 × 102 m/s2
D) 66 m/s2
E) 2.1 × 10-2 m/s2
B
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A. It will remain unchanged. B. It will increase. C. It will decrease.
If the barrier width for an STM is 0.1 nm, what would be the corresponding minimum momentum uncertainty of an electron traversing this boundary?
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