Amonorail train starts from rest on a curve of radius 400 m and
accelerates at the constant rate a_t. if the maximum total acceleration
of the train must not exceed 1.5 m/s^2, determine (a) the shortest
distance in which the train can reach a speed of 72 km/h, (b) the
corresponding constant rate of acceleration a_t.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.