Problem 3 A as shown in figute hus speed 150 km/h the driver hits the hrakes If mA 30 ton and m = 20 tons. f the hraking force is 50 kN on each car, determine (a) the distance the train need to stop, (6) the force in the coupling between the cars while the train is showing down

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.