A 15 mm tall object is placed 20 cm in front of a concave spherical mirror of focal length f. The image produced by the mirror is upright and is 45 mm tall. The value of f is

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.