The specific elastic modulus of the magnesium alloy AZ31B is equal to _________GPa.
Fill in the blank(s) with the appropriate word(s).
25.4
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Diamond has an index of refraction of 2.419 . What is the critical angle for internal reflection inside a diamond that is in air?
a. 48.8° c. 24.4° b. 131° d. 155°
A waffle cone has a diameter of 2.5 inches and is 5.5 inches tall. What is the volume of the waffle cone in cubic centimeters?
A) 58 cubic cm B) 150 cubic cm C) 240 cubic cm D) 440 cubic cm E) 620 cubic cm
A radio station broadcasts at 80 MHz. How long does it take for this radio signal to travel a distance of 20 × 106 m?
A) 0.15 × 10-2 s B) 15 ms C) 6.7 × 10-2 s D) 20 ms E) 25 ms
Which of the following combinations of circuit components can be used to make a tuner for a radio, to select the desired frequency?
a. fixed inductor, variable resistor b. fixed resistor, variable inductor c. fixed inductor, variable capacitor d. fixed capacitor, variable resistor