1. You are asked to select a sensor that will follow the temperature in the piston of an internal combustion engine that will operate at 8000 RPM. The temperature will vary roughly sinusoidally during the cycle and the design requirement is that the sensor reach at least 90% of the peak temperatures. What must the time constant be

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.