Consider a person who is trying to keep cool on a hot summer day by turning a fan on and exposing his body to air flow. The air temperature is 32C, and the fan is blowing air at a velocity of 5 m/s. The surrounding surfaces are at 40C, and the emissivity of the person can be taken to be 0.9. If the person is doing light work and generating sensible heat at a rate of 90 W, determine the average temperature of the outer surface (skin or clothing) of the person. The average human body can be treated as a 30 cm diameter cylinder with an exposed surafce area 1.7 m2 .
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4) “I forgot to ask, but I presume he'll be bringing her with him.'
a) From where is the above extract taken? By whom was it written?
(2m)
The death of
Arthur'
Thomas
Malory
b) Who spoke the above words and to whom were they spoken to?
(2m)
c) Who is referred to as 'her'?
(2m)
d) What important position is held by the person who is referred as 'he'?
(lm)
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