A flywheel, of radius 1 m, is spinning with a constant angular velocity of 2 rad/s. What is the centripetal acceleration of a point on the wheel's rim?
A) 6 m/s2
B) 2 m/s2
C) 4 m/s2
D) 1 m/s2
E) 8 m/s2
C
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We find most stars still on the main sequence because this stage takes ________
Fill in the blank(s) with correct word
How far from a covnex lens of focal length 30 cm must an object be placed so the image will be virtual and 3.0 times as large as the object?
What will be an ideal response?
The prefixes which are abbreviated p, n, and T represent which of the following?
a. 10-2, 10-6, and 1015 c. 10-12, 10-9, and 1012 b. 10-9, 106, and 1010 d. 10-15, 10-6, and 1015
A heat engine that would take in 1000 J of heat from a reservoir at 500 K and exhaust 500 J to a reservoir at 300 K, converting the other 500 J of heat to work, is
A. thermodynamically possible. B. not thermodynamically possible. C. possible only for a Carnot cycle.