Aregular hexagonal pyramid has an upper base edge of 16 ft. and a lower base edge 28 ft. if the volume of the frustum is 18,041 ft.3, find the lateral area of the frustum.

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

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

The higher the astm grain size number, the finer the gran is. a)-true b)-false