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1. The Q-factor of a resonance circuit is defined as the ratio of the voltage across the capacitor (or inductor) to the voltage across the resistor, at resonance. The larger the Q-factor, the sharper the resonance curve will be and the sharper the tuning. Show that the Q-factor is given by the equation: Q = 1/R.√L/C . At resonant frequency fo = 1 MHz, what must be the value of L and R to produce a Q-factor of 1000? Assume that C = 0.01 μF
An 18-year-old runner can complete a 10.0-km course with an average speed of 4.49 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How much later should the younger runner start in order to finish the course at..
A large research balloon containing of helium gas at 1.00 and a temperature of 15.0 rises rapidly from ground level to an altitude at which the atmospheric pressure is only 0.900, What is the change in internal energy of the helium
two stationary positive point charges charge 1 of magnitude 3.15nc and charge 2 of magnitude 1.75nc are separated by a
Most of the asteroids orbit the Sun in a belt between Mars and Jupiter. how long does the average asteroid take to orbit the Sun
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Is more elastic potential energy stored in a spring when thespring is compressed by one centimeter than when it is stretched bythe same amount? Explain.
the triangular coil of wire in the drawing is free to rotate about an axis that is attached along side ac. the current
to start an avalanche on a mountain slope an artillery shell is fired with an initial velocity of 310 ms at 49.0deg
a 20 micro f capacitor is fully charged across a 12v battery. the capacitor is then disconnected from the battery and
On a frictionless track, a 0.55 kg cart is traveling at 0.70 m/sec when it runs into a spring that is anchored to the end of the track. what is the original kinetic energy of the cart as it approached the spring
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