Laboratory experiments conducted with particle accelerators confirm predictions made by the theory that unifies ________
A) the strong, weak, and electromagnetic forces into the GUT force
B) the electromagnetic and weak forces into the electroweak force
C) the unification of all four forces into a single "superforce"
D) the strong and weak forces into the combined nuclear force
B
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In an AC circuit, the ratio of average current to maximum current is:
a. zero. b. 0.5. c. 0.707. d. 1.0.
The distance between the ruled lines on a grating is 1900 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band
What is the angular width of the gap between the first order spectrum and the second order spectrum? A) 3.3° B) 4.3° C) 5.3° D) 6.3° E) 2.3°
The strong nuclear force is how many times as strong as the gravitation force?
A) 1038 B) 1 (They are the same.) C) 2 D) 100 E) 106
Conversion of Units: Your car gets 34.7 mi/gal on a vacation trip in the U.S. If you were figuring your mileage in Europe, how many km/L did it get? (3.79 L = 1.00 gal; 1.00 mi = 1.61 km)
A. 14.7 km/L B. 9.16 km/L C. 55.9 km/L D. 32.4 km/L