Which produces a brighter image? Choose the best answer
a. a small-diameter telescope b. a large-diameter telescope
c. A very small light collector d. None of the other choices are correct.
b
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In a parallel RLC circuit, where IR = IR, max sin(?t), the current through the inductor, IL, is
a. IL = ?IL, max sin(?t). b. IL = IL, max sin(?t). c. IL = ?IL, max cos(?t). d. IL = IL, max cos(?t). e. IL = IL, max tan(?t).
Secondary seismic waves travel ______________ primary waves in solids
a. in the direction opposite to the movement of b. slower than c. faster than d. at right angles to
The Chandrasekhar limit of stellar mass (below which a star will collapse into a white dwarf) is, if the mass of our Sun is M, about
A) 0.8 M. B) 1.2 M. C) 1.4 M. D) 1.9 M. E) 2.8 M.
In a Hall experiment a conducting strip of thickness d = 100 ?m is placed in a magnetic field B = 0.0 5 T. The magnetic field is perpendicular to the direction of the strip along which there is a 10-A current
What is the Hall voltage measured across the strip if the charge carrier density is 2.5 × 1028/m3 in this material? A) 1.3 ?V B) 2.5 ?V C) 0.72 ?V D) 6.2 ?V E) 4.2 ?V