A double-slit experiment is performed and then redone using slits of double the previous separation. Nothing else is changed. If the approximation sin 
holds, what happens to the angle between the maxima?
A. it stays the same
B. it doubles
C. it quadruples
D. it halves
E. it quarters
D. it halves
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What types of fundamental particles are in an atom?
A) just up quarks and top quarks B) just neutrons and electrons C) just down quarks, electrons, and positrons D) just up quarks, down quarks, and electrons E) just electons and positrons
Charge of uniform density 12 nC/m is distributed along the x axis from x = 2.0 m to x = 5.0 m. What is the electric potential (relative to zero at infinity) at the origin (x = 0)?
a. 91 V b. 99 V c. 82 V d. 74 V e. 140 V
A small ball is released from rest at position A and rolls down a vertical circular track under the influence of gravity
RLC Circuits: A 120-V rms voltage at 1.0 kHz is applied to a 2.0-mH inductor, a 4.0-?F capacitor and a resistor. If the rms value of the current in this circuit is 0.40 A, what is the value of the resistor?
A. 300 ? B. 95 ? C. 420 ? D. 120 ? E. 240 ?