If as-quenched martensite is heated to 500°C for one hour, it is then tempered _____________.
Fill in the blank(s) with the appropriate word(s).
tempered
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Thin Films: A 360-nm thick oil film floats on the surface of a pool of water. The indices of refraction of the oil and the water are 1.50 and 1.33, respectively. When the surface of the oil is illuminated from above at normal incidence with white light, what is the wavelength of light between 400 nm to 800 nm wavelength that is most weakly reflected?
A. 520 nm B. 540 nm C. 560 nm D. 580 nm E. 600 nm
If a star orbits the MWG high above the galactic disk in the halo, what type of star is it?
A. Dark Matter Star B. Pop II C. That's no star! D. Pop I
Spaceman Speff orbits spherical asteroid X with his spaceship. To remain in a circular orbit at 421 km from the asteroid's center, he should maintain a speed of What is the mass of planet X? (G = 6.67 × 10-11 N ? m2/kg2)
A) 4.0 × 1019 kg B) 5.1 × 1017 kg C) 4.0 × 1016 kg D) 5.1 × 1014 kg
The wavelength of a wave divided by the frequency of the wave is the wave's speed
a. True b. False Indicate whether the statement is true or false