Two barges are weighing 40 kN and the other 80 kN are connected by a cable in quiet water. Initially the barges are 100 m apart. If friction is negligible calculate the distance moved by the 80 kN barge.

Aluminium has a density of 2.7 g/cm³ and a specific heat of 0.9 J/g.⁰C. A 9.7 cm³ piece of Aluminium at an initial temperature of 125 ⁰C is dropped into an insulated container with 120 g water initially at 18 ⁰C. What will the final temperature of the Aluminium-water mixture? (Specific heat of water: 4.186 J/g.⁰C)

 A generating station has a connected load of 43 MW an a maximum demand of 20 MW, the units generated being 61.5 x 106 per annum. Calculate. The load factor.

a. 64.8%

b. 76%

c. 351 %

d 17.9%

An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains 4Kg of an ideal gas at 800Kpa and 50C and the other part is evacuated. The partition is now removed, and the gas expands in the entire tank. Determine the final temperature and pressure in the tank.