In an air standard Otto cycle the maximum and minimum temperature are 1400 and 15。C. The heat supplied per kg of air is 800 kJ. Calculate, a. The compression ratio; b. The cycle efficiency; c. The ratio of maximum to minimum pressure in the cycle.

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.