1. In a gas turbine plant, a gas moving at a velocity of \( 60 \mathrm{~m} / \mathrm{s} \) flows through the turbine at \( 17 \mathrm{~kg} / \mathrm{s} \). the specific enthalpy of the gas at entry is \( 1200 \mathrm{~kJ} / \mathrm{kg} \). the turbine develops 14000 kW of power. The gas leaves the turbine at a velocity of \( 150 \mathrm{~m} / \mathrm{s} \) with a specific enthalpy of \( 360 \mathrm{~kJ} / \mathrm{kg} \). the specific volume at entry is \( 0.6 \mathrm{~m}^{3} / \mathrm{kg} \). determine i. The area of the inlet pipe ii. The rate of heat transfer as the gas passes through the turbine stating whether it is a heat loss ( 6 marks)

QUESTION 7 (Start on a new page.) 7.1 Reflection of light (and other forms of electromagnetic radiation) occurs when the waves meet a surface or other boundary that does not absorb the energy of the radiation and reflects the waves off the surface. Draw a fully labelled ray diagram to illustrate reflection.

3. Si un ratón y un elefante comen ambos con la misma energía cinética, ¿podrías decir cuál corre más aprisa? Explica tu respuesta en términos de la ecuación de la ECT?

5.3 An aeroplane accelerates uniformly such that it goes from rest to \( 144 \mathrm{km.hr}^{-1} \) in 8 s . Calculate 5.3 .1 the acceleration of the aeroplane. 5.3 .2 the total distance that it has travelled in this time. Total for qu

5. Qué energía potencial posee un objeto con una masa de 6 kg a. A 4 m del suelo. b. A 6 m del suelo. 6. ¿A qué altura debería situarse una masa de 2 kg para poseer una energía

An object of mars 5.0 kg moves around a aincle of radius 6.0 m coith a constant speeds of 10 . om/s. Calc-te 1 . angular velocity Centripetal force on the body