One
When you convert a whole number into a fraction, you put the whole number as the numerator and the denominator as 1.
Such as 12=12/1 or 5=5/1
Answer:
Answer: (a) = 3.8187m/s, (b) =24.0858m/s (c) = = 3220.071m/s
Explanation:
du/u² = dt = ∫du/2.3183 = ∫dt
0.4313 u = t + c
(a) t = 0, u= 15m/s, c = 0.647
u = t+c/0.4313 = t + 0.647/0.4313
(a) when t= 1 u = 1+ 0.647/0.4313 = 3.8187m/s
(b) when t= 10 u = 10 + 0.647/0.4313 = 24.0858m/s
(c)when t= 1000 u = 1000 + 0.647/0.4313 = 3220.071m/s
Answer:
Explanation:
Heat dissipated by 26 people per second
= 26 x 360 x 1000 / (60 x 60)
= 2600 J
Heat dissipated by bulbs per second
= 15 x 40
= 600 J
Heat dissipated by fans per second
200 J
Heat dissipated by air coming in
= 200 x 10 x 1000 / (60 x 60)
=555.55 J
Heat gain by walls
= 5000 x 1000 / (60 x 60)
= 1388.88 J
Total heat gain per second
= 2600 + 600+200+555.55
= 3955.55 J
Capacity of air-conditioner required
= 3955.55 J/s
= 3.9 kJ/s
= 3.9kW
= 4 kW
