Three capacitors of 0.60, 1.2, and 2.9 ?F are connected in series. Find the combined capacitance
a. 2.8 ?F
b. 4.7 ?F
c. 6.8 ?F
d. 0.35 ?F
e. 2.1 ?F
d
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In twice the time, an object will attain a speed that is
A) four times as fast. B) 16 times as fast. C) 12 times as fast. D) twice as fast. E) eight times as fast.
The rigid body shown rotates about an axis through its center of mass and perpendicular to the paper. If M = 2.0 kg and L = 80 cm, what is the kinetic energy of this object when its angular speed about this axis is equal to 5.0 rad/s? Neglect the mass of the connecting rod and treat the masses as particles
a.
18 J
b.
15 J
c.
12 J
d.
23 J
e.
26 J
What is the x-component of a force vector of magnitude 27.0N directed at 73o above the negative y-axis?
A. +7.9N B. -7.9N C. -25.8N D. -8.3N E. +25.8N F. +8.3N
2.00 moles of an ideal gas freely expands from 1.50 liters to 4.00 liters. The change in entropy in the expansion
A. 5.80 J/K B. 8.50 J/K C. 16.3 J/K D. 18.7 J/K