A fan consumes 20 𝑊 of electric power and discharges air from a ventilated room at 0.25 kg/s. The maximum air outlet velocity is nearly
A. 4.7 𝑚/𝑠
B. 8.7 𝑚/𝑠
C. 10.2 𝑚/𝑠
D. 12.7 𝑚/𝑠
Answer:D
A fan consumes 20 𝑊 of electric power and discharges air from a ventilated room at 0.25 kg/s. The maximum air outlet velocity is nearly
A. 4.7 𝑚/𝑠 B. 8.7 𝑚/𝑠 C. 10.2 𝑚/𝑠 D. 12.7 𝑚/𝑠