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The 85-g top shown is supported at the fixed point O. The radii of gyration of the top with respect to its axis of symmetry and with respect to a transverse axis through O are 21 mm and 45 mm, respectively. Knowing that c = 37.5 mm and that the rate of spin of the top about its axis of symmetry is 1800 rpm, determine the two possible rates of steady precession corresponding to θ = 30°.
A canoe has a velocity of 0.400 southeast relative to the earth. Find the magnitude of the velocity of the canoe relative to the river
A crate sits on a flat-bed truck that is traveling with a speed of 50 km/h on a straight, level road. find in how short a distance can the truck stops with a constant acceleration without the crate sliding
A lens with 50-cm focal length produces a real image the same size as the object. How far from the lens is the image
You have a 1.0 m long copper wire. You want to make an N -turn current loop that generates a 1.0 mT magnetic field at the center when the current is 1.0 A, What will be the diameter of your coil
A 5 kilogram solid disk has a radius of 0.25 m and rotates at120 revolutions per minute. Evaluate the rotational kinetic energy of the disk in SI units
to ensure a tight fit cylindrical metal elements are sometimes made the same size or even slightly larger than the
One long wire lies along an x axis and carries a current of 42 A in the positive x direction, What is the magnitude of the resulting magnetic field at the point (0, 2.0 m, 0)
An air duct in a building has a radius of 11 centimeter and a length of 16 meter. Find what pressure is required to push air through the duct at a flow rate of1.4 m3/s
A 6.00 ohm resistor, 10.0 mH inductor, and a 120 µF capacitor are connected in series to a 55.0 Volt (rms) source having variable frequency. Compute the energy delivered to the circuit
A person notices a mild shock if the current along a path through the thumb and index finger exceeds 80 μA. Find the maximum allowable potential difference without shock across the thumb and index finger for a wet-skin resistance of 1000 Ω.
A satellite circles the earth in an orbit whose radius is 1.83 times the earth's radius. What is the period of the satellite
Positive charge Q is distributed uniformly along a thin plastic rod that forms one quarter of a circle in the third quadrant of the x-y plane. The circle has radius a and its center is at the origin.
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