The number of Bohr magnetons per atom for Co is 1.72. Calculate the saturation magnetization for Co.
What will be an ideal response?
We can calculate the saturation magnetization from Equation 17.12 assuming that at saturation all of the spins are parallel to the applied magnetic field: MnN s BB v = µ . The value of Nv is not given, but we can obtain Nv (the number of atoms per unit volume) from the density of 8.90 g/cc, atomic mass of 58.93 g/mole, and Avagadro’s number through dimensional analysis. Starting with the density of 8.90 g/cc:
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Which four moons are believed to have large bodies of liquid water?
What will be an ideal response?
A person looking through eyeglasses sees
a. real images b. virtual images c. erect images d. inverted images e. polarized images
Two point charges of values +3.4 mC and +6.6 mC are separated by 0.20 m. What is the electrical potential at the point midway between the two charges? (ke = 8.99 × 10^9 N×m2/C2)
a. +1.8 × 10^6 V c. +0.90 × 10^6 V b. -0.90 × 10^6 V d. +3.6 × 10^6 V
Starship "Alpha" is traveling at 0.6c (? = 5/4) with respect to the identical starship "Beta." Each starship has rest length 10,000 m. A cook aboard the "Beta" measures the time the "Alpha" requires to pass by his window. What result should he get?
A. About 6 microseconds B. About 44 microseconds C. About 70 microseconds D. About 33 microseconds E. About 25 microseconds