36.82 gg + 17 mgmg Complete the operation and express the answer with the appropriate number of significant figures and units
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- In a process of metal casting, the final product’s volume is 1275 cm3. Casting waste, scrap allowance, and shrinkage allowance are 8%, 12%, and 3.5%, respectively. The metal supplier pays $0.5/kg, irrespective of the type of metal. Determine the material cost, if the following metals are used for casting:a. Aluminum (ρ = 2.7 g/cm3 ; cost = $1.85/kg)b. Grey Iron (ρ = 6.8 g/cm3; cost = $1.38/kg) Calculate the overall efficiency of the economic conversion of raw materials.A four-cylinder four-stroke petrol engine with the following specifications: - The bore(diameter) = 20 cm - The stroke = 30 cm - The compression ratio = 8 - The indicated power = 33 KW - The engine speed = 2500 rpm - The indicated thermal efficiency = 35% - The friction power = 25 kW - The calorific value ( heating value) = 42000 kJ/kg . Determine the following: a) The indicated mean effective pressure. b) Thermal efficiency. c) Specific fuel consumption per hour. d) The Torque (given K = 1.4)SHOW YOUR COMPLETE SOLUTION and Answers must be expressed in engineering notation (when the exponent of the base 10 multiplieris not a multiple of 3,) Example: 0.06N or 6.0x10-2 N must be expressed to 60x10-3 N or 60m
- A coal sample gave the following analysis by weight, Carbon 66.9 per cent, Hydrogen 6.58 per cent, Oxygen 8.77 per cent, the remainder being incombustible. For 20% excess air , determine actual weight of air required per kg of coal. Round your answer to two decimal places.Exhaust gas leaves the exhaust pipe of a motor car with a pressure of 1.2 bar and a temperature of 4000C. If the exhaust gas specific was 1.6653 m3 per kg, determine the identity of the exhaust gas. please show the formula used and cancellation of units, if possible include illustration also.6. Oxygen used in oxy-acetylene metal cutting was stored in a tank (empty tank weight is 25lb) whose volume is 48ft3. Initially, the gauge pressure reading of the tank was 40psi. After usage, the pressure reading falls to 25psi. Determine the final weight (lb) of the tank after the operation if the temperature in the tank remains constant at 77°F. Draw a figure or FBD that will support the problem. Explain each step by step formula.