On a day that the temperature is 20.0 C, a concrete walk is poured in such a way that the ends of the walk are unable to move. Take Young's modulus for concrete to be 7.00E9 N/m2 and the compressive strength to be 2.00E9 N/m2. a) What is the stress in the cement on a hot day (50.0 C)

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false