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A wheel is rotating freely at angular speed 270 rev/min on a shaft whose rotational inertia is negligible. A second wheel, initially at rest and with 3 times the rotational inertia of the first, is suddenly coupled to the same shaft.
(a) What is the angular speed of the resultant combination of the shaft and two wheels?
(b) What fraction of the original rotational kinetic energy is lost?
An LC circuit with a 4.90 pF capacitor oscillates in such a manner as to radiate at a wavelength of 3.50 m. What inductance is in series with the capacitor
A simple harmonic oscillator takes 12.0 s to undergo six complete vibrations.
A homemade capacitor is assembled by placing two 10in pie pans 6cm apart, Estimate the electric field halfway between the plates
A gun is fired vertically into a 1.9 kg block of wood at rest directly above it. If the bullet has a mass of 21.00 g and a speed of 195 m/s, how high would the block rise into the air after the bullet becomes embedded in it.
An archer shoots an arrow horizontally at a target 17m away. The arrow is aimed straight at the center of the target, but it hits 59cm lower.
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
A technician wraps wire around a tube of length 40.0 cm having a diameter of 7.90 cm. find the self-induced emf in the solenoid?
A constant force of 50 N is applied tangentially to the rim of a solid disc with a 60 cm radius. The wheel has a moment of inertia of 40 kgm^2. What is the mass of the disc
Block B rests on a smooth inclined plane of 21 degrees and block A hangs vertically. Compute the acceleration of the system if the mass of block A is 1.08 kg and that of block B is 5.9 kg.
An 8.70 block slides with an initial speed of 1.56 down a ramp inclined at the angle of 23.6 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.69.
A reflecting telescope has a main mirror with fM = 620 mm. If an eyepiece with a magnification of 15 is used, what is the total magnification of the telescope
One wire carries a current of 5.008 A into it. Another wire carries a current of 5 A out of it. Explain how long would it take for the sphere to increase in potential by 4000 volts?
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