Challenge activity 5.8.2: nested loops: print seats. given numrows and numcolumns, print a list of all seats in a theater. rows are numbered, columns lettered, as in 1a or 3e. print a space after each seat, including after the last. use separate print statements to print the row and column. ex: numrows = 2 and numcolumns = 3 prints: 1a 1b 1c 2a 2b 2c

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux