Forţa de rezistenţă la înaintare pe care o întâmpină o maşină reprezintă o fracţiune f=0,15 din greutatea ei. Ce putere are motorul dacă masa autoturismului este 1,5t şi atinge viteza maximă de 144km/h?

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will