A gas filled tube has 2 mm inside dia and 25 cm length. The gas is heated by an electric wire of dia 0.05 mm located along the axis of the tube. Current and the voltage drop across the heating element are 0.5 amps and 4 volts, respectively. If measured wire and inside tube wall temperatures are 175°C and 150°C respectively, find the thermal conductivity of the gas filling tube.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Burgers vector is generally parallel to the dislocation line. a)-true b)-false