Parameters of voltage source and their physical meaning
What are the main parameters of voltage source and their physical meaning . How can we determine the voltage source parameter experimentally.
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Find the angle between the position vectors to the points (3, -4, 0) and (-2, 1, 0), and find the direction cosines of a vector perpendicular to both.
1kg of water that is initially at 90 degree celsius with a quality of 10 percent occupies a (linear) spring-loaded piston-cylinder device. Heating raises the pressure to 800kPa and temperature to 250 degree celsius.
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The reservoir pressure and temperature for a blowdown supersonic wind tunnel are 7.5 atm and 800 deg R, respectively. The design Mach number for the tunnel is Mdes = 3.5.
Find the quantum number that characterizes the earth's orbit around the sun. The earth mass is 6.0x10^24 kg, its orbital radius is 1.5x10^11 m, and its orbital speed is 3.0x10^4 m/s.
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Find the frequency of revolution of the electron in the classical model of the hydrogen atom. In what region of the spectrum are electromagnetic waves of this frequency?
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