A wheel rotates through an angle of 13.8 rad as it slows down from 22.0 rad/s to 13.5 rad/s. What is the magnitude of the average angular acceleration of the wheel?
A) 0.616 rad/s2
B) 5.45 rad/s2
C) 111 rad/s2
D) 22.5 rad/s2
E) 10.9 rad/s2
E
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When a barrel of water in a rowboat in a swimming pool is poured overboard, the pool level
A) rises. B) falls. C) remains unchanged.
A series RC circuit has a time constant of 1.0 s. The battery has a voltage of 50 V and the maximum current just after closing the switch is 500 mA. The capacitor is initially uncharged. What is the charge on the capacitor 2.0 s after the switch is closed?
a.
0.43 C
b.
0 66 C
c.
0.86 C
d.
0.99 C
In any natural process, some energy becomes unavailable to do useful work
Indicate whether the statement is true or false
Write the Laplace equation for two-dimensional conduction heat transfer through a homogeneous, isotropic material that has constant thermal conductivity.
What will be an ideal response?