You have an engine you wish to model using an ideal otto cycle. the engine has 1.5 l displacement (vd = vmax − vmin) and compression ratio of 10.5: 1. at a low load you know 0.55 kj of energy is added to the engine, and the in-cylinder pressure and temperature are 50 kpa and 320 k at the start of the compression stroke. using the air-standard assumptions with variable specific heats and r=0.287, what are the peak cycle temperature and pressure? what is the cycle efficiency, and what would the efficiency of a carnot cycle operating between the same temperature limits be? what is the mean effective pressure (mep) at this operating condition?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

The softest and hardest minerals are: softest hardest

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants