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Question
10m গভীর কূয়া থেকে ইঞ্জিনের সাহায্যে প্রতি মিনিটে 1200kg পানি উত্তোলন করা হয়।ইঞ্জিনের দক্ষতা 70% হলে এর অশ্ব ক্ষমতা কত?
3.75
4.5
9.5
8.4
ANSWER : 1
Descrption
<p>We know, P=<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mfenced open="[" close="]"><mtable><mtr><mtd><mi>mgh</mi></mtd></mtr><mtr><mtd><mn>746</mn><mo>×</mo><mi mathvariant="normal">t</mi><mo>×</mo><mi mathvariant="normal">η</mi></mtd></mtr></mtable></mfenced></math></p><p>P=<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mfenced open="[" close="]"><mtable><mtr><mtd><mn>10</mn><mo>×</mo><mn>1200</mn><mo>×</mo><mn>9</mn><mo>.</mo><mn>81</mn></mtd></mtr><mtr><mtd><mn>746</mn><mo>×</mo><mn>60</mn><mo>×</mo><mo>.</mo><mn>7</mn></mtd></mtr></mtable></mfenced></math></p><p>P = 3.75 HP</p>
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