Please help i’m on the test now!! Explain which type of resource would be best for the engineer in the following scenario to try to develop.
Timothy is an engineer in Los Angeles, California. He has endured several health problems due to the
pollution in the air. His goal is to develop a compact vehicle that will not emit pollution into the environment.
He would also like to develop a fuel that cannot be depleted during the next few human generations.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.