Which of the following best characterizes electrical insulators?
a. high tensile strength
c. good heat conductors
b. charges on the surface don't move
d. electric charges move freely
B
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Answer the following statement(s) true (T) or false (F)
1. Events A and C are definitely causally connected
A baseball pitcher throws a fastball at 98 mph. He also has a slower "changeup" pitch, 75 mph, which he throws identically, same windup and same release angle from shoulder height. Which pitch gets to home plate with a flatter trajectory-i.e., velocity vector closer to horizontal?
A. The fastball B. The changeup C. They each have same trajectory, since the distance to home plate is the same
An AM radio tuning circuit has a coil with an inductance of 3.93 mH and a capacitor set at 5.68 × 10^?12 F. What frequency will it detect?
a. 8.90E+5 Hz b. 1.07E+6 Hz c. 1.78E+6 Hz d. 1.70E+5 Hz e. 5.33E+5 Hz
In the NSOM technique, the letter S stands for:
a. slow. c. scanning. b. small. d. swift.