In a locker room at 20oC (293 K), a football is filled until the gauge reads 12.5 psi or 86 kPa. This is relative to the atmospheric pressure of 101 kPa, so the absolute air pressure in the ball is 187 kPa. The ball is taken out to the field and reaches thermal equilibrium at 10oC. Assuming the volume of the ball is constant, what is the absolute and relative pressure inside the football

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

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false