Consider a hypothetical material that has a grain diameter of 6.3 ´ 10-2 mm. after a heat treatment at 500°c for 4 h, the grain diameter has increased to 1.10 ´ 10-1 mm. compute the grain diameter when a specimen of this same original material (i. e., d0 = 6.3 ´ 10-2 mm) is heated for 5.5 h at 500°c. assume the n grain diameter exponent has a value of 2.0

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?

With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.

Amass-spring-viscous damper system of mass 3 kg has a frequency of 100 rad/s and is critically damped. its initial conditions are x(0)-3 mm and (0)-2.3 m/s. does the system overshoot its equilibrium position? prove your answer