A piston–cylinder device initially contains 0.8 m3 of nitrogen gas at 534 kPa and 22 °C. An electric heater within the device is turned on and is allowed to pass a current of 2 A for 8 min from a 107 -V source. Nitrogen expands at constant pressure, and a heat loss of 1,876 J occurs during the process. Determine the final temperature of nitrogen. Assume that Cp for nitrogen is equal to 1.039 KJ

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when