26. वर्तमान विश्वमा जलविद्युत्को प्रयोग बढ्दै जानुका कुनै दुईबाटा कारणहरू लनुहोस् Write any two reasons that the use of hydroelectricity is increasing in the present world.
27. नेपाल सरकारले जलविद्युत्को उत्पादनलाई बढी प्राथमिकता दिनुको दुईओटा कारणहरू लेख्नुहोस् ।
Writinmuses that Nepal Government has given higher priority for the production of hydroele​

What is the measurement of how fast an object moves relative to a reference point?

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.