Find the electric potential difference
Find the electric potential difference VB - VA due to a point charge q1 = -2.79 nC that is 0.5 m from location A and 1.0 m from location B.
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The resonant speed is determined experimentally to be 1200 rpm and the corresponding amplitute of the main mass of the machine is 12.7 mm. Determine the amplitude for a speed of 2400 rpm.
Calculate the speed of the flow at the nozzle exit and the force required to hold the nozzle stationary. Neglect weight.
Point charges q1, q2, and q3 are fixed at the vertices of an equilateral triangle whose sides are 2.40 m long. Find the electrostatic potential energy of this system of charges for the following charge values.
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In Boulder Dam, 2000 cubic feet per second of water flows through each of the pipes (called penstocks) that lead down to the turbines. The penstocks are 30 feet in diameter, have a roughness of 1 inch and are 1000 feet long.
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Air initially at rest (M1 = 0) with an initial pressure P1 = 1 atm and temperature T1= 300k flows through a nozzle into a partial vacuum with P2 = 0.2 atm. There is no elevation change. What is the air temperature at the end of the nozzle (T2)?
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