自然科學 大學 1年以上以前 求這2題詳解🙏🙏🙏 2. 3. (C)水深10 公尺處有一密閉 金屬球殼,半徑為 20 公分;其內 空氣為一大氣壓力.請問球表面 因內外壓力差異所受之力為:(A) 4926 N; (B) 9852 N; (C) 49260 N; (D) 98520 N. (A)同上題,若將球殼內部抽 真空,球表面因內外壓力差異所 受之力變為何?已知大氣壓力為 101325 N/m². (A) 100192 N; (B) 10020 N; (C) 202650N;(D)不變 尚未解決 回答數: 1
工程與科技 大學 約3年以前 化工-單元操作 大神求解 13. Furnace stack-E. Air (pe = 0.08 lbm/ft3) flows through a furnace where it is burned with fuel to produce a hot gas (Pg 0.05 lbm/ft3) that flows up the stack, as in Fig. P1.13. The pressures in the gas and the immediately surrounding air at the top of the stack at point A are equal. A Gas out A Air Air H= 100 ft Gas Air in Furnace B Ah Water manometer (relative positions of levels not necessarily correct) Fig. P1.13 Furnace stack. What is the difference Ah (in.) in levels of the water in the manometer con- nected between the base B of the stack and the outside air at point C? Which side rises? Except for the pressure drop across the furnace (which you need not 待回答 回答數: 0