A conducting rod (length = 2.0 m) spins at a constant rate of 2.0 revolutions per second about an axis that is perpendicular to the rod and through its center. A uniform magnetic field (magnitude = 8.0 mT) is directed perpendicularly to the plane of rotation. What is the magnitude of the potential difference between the center of the rod and either of its ends?
a. 16 mV
b. 50 mV
c. 8.0 mV
d. 0.10 mV
e. 100 mV
b
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Nonmagnetic metals in municipal waste are separated with ___________.
Fill in the blank(s) with the appropriate word(s).
One mole of an ideal gas with a volume of 4.00 liters and a temperature of 0
is mixed with one mole of an ideal gas with a volume of 2.00 liters and a temperature of 100
The volume of the mixture is 6 liters. What is the N/V of the mixture?
a. 
b. 
c. 
d. 
e. 
In the equation E = hf, the symbol h stands for
A) half-life. B) momentum as it pertains to light. C) energy per photon wavelength. D) none of the above
A 200-loop coil of cross sectional area 8.5 cm2 lies in the plane of the page. An external magnetic field of 0.060 T is directed out of the plane of the page
The external field decreases to 0.020 T in 12 milliseconds. (a) What is the magnitude of the change in the external magnetic flux enclosed by the coil? (b) What is the magnitude of the average voltage induced in the coil as the external flux is changing? (c) If the coil has a resistance of 4.0 ohms, what is the magnitude of the average current in the coil?