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The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.69 m and 1.02 m, respectively. The respective rotational speeds are 452 rev/min and 4,137 rev/min. Calculate the speeds of the tips of both rotors.
The FM radio band covers the frequency range 88-108 MHz. If the variable capacitor in an FM receiver ranges from 11.4pF to 17.2pF , what inductor should be used to make an LC circuit
Two masses are attached to strings wound around a double pulley as shown. The double pulley has a total mass of 1200g (1.2kg), Calculate the angular acceleration of the double pulley
The maximum speed of a 3.1kg mass attached to a string is 0.68 m/s and the maximum force exerted on the mass is 11N. What is amplitude of motion for the mass? What is the force constant on the string? What the frequency.
Suppose two kids get on a 4 meter long teeter-totter. The one on the right creates a CW torque of 350 Newton-meters (Nm). Quite by coincidence, when the other kid sits at 1 meter from his end they balance perfectly. How much does second kid weigh.
A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin\'s displacement
A hydrogen atom is in the 5d state. What is the magnitude of its orbital angular momentum
A 10,000 kg railroad car is rolling at 1.5 m/s when a 4000 kg load of gravel is suddenly dropped in. What is the car's speed just after the gravel is loaded
What is the final angular velocity
Suppose that the dipole moment associated with an iron atom of an iron bar is 2.7 x 10-23 J/T. Assume that all the atoms in the bar, What is the dipole moment of the bar
Illustrate what factors are likely to drive an organization's outlays for new capital? Illustrate what ratios would you use to help generate forecasts of these outlays?
At a distance r away from a point charge q, the electric potential is V = 600 V and the magnitude of the electric field is E = 200 N/C
A parallel plate capacitor of capacitance 7.2 µF has the space between the plates filled with a slab of glass with ? = 3.5. Find the capacitance after the glass is removed
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