You have purchased an 8-bit R-2R digital to analog converter to control the joint position on a robotic arm (the position of which is proportional to the input voltage).

a) The DAC shows an output voltage of 1.21 V when the binary value 00100101 is applied. What is the full scale analog output range of this DAC in volts?
b) What voltage does the DAC output with a binary value of 11101010 applied?
c) If the joint rotates 8.6 degree

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.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.