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A hoop (i.e., a ring) of radius 4 m and mass 13 kg is suspended from a pivot on the perimeter of the hoop as shown in the figure. The acceleration of gravity is 9.8 m/s2. Find the angular frequency ω of small os- cillations. Answer in units of rad/s.
A picture of width 45.0 cm, weighing 50.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 3.40 cm higher than the points where the wire is attached ..
The pair of blocks shown is released from rest when the springs are unstretched. The coefficients of static and kinetic friction are 0.25 and 0.15.
a transport plane takes off from a level landing field with two gliders in tow one behind the other. the mass of each
A rope hangs from a cylinder over which it is wound, of radius 0.20 m and mass 40.0 kg, What torque does the hanging mass exert on the cylinder
A 1.00-µF capacitor is connected to a 12.0-V battery. How much energy is stored in the capacitor
A rifle that shoots bullets at 470 m/sis to be aimed at a target 41.6 maway. If the center of the target is level with the rifle, how highabove the target must the rifle barrel be pointed so that the bullet hits dead center?
Describe how Halon (halogenated hydrocarbon) is harmful to the Earth's ozone layer and the possible extinguishing agents.
find out the magnitude of the gravitational force exerted.
A person drives north at 25 m/s for 10 min. west at 10 m/s for 15min and 20 m/s for 5 min. on a road that is at an angle of 30° south of east. What is the displacement for each part of the drive
A simple pendulum of length L having a bob of mass m is deflected from its rest position by an angle 6 arid released (figure 8-E16). The string hits a peg which is fixed at a distance x below the point of suspension and the bob starts going in a c..
Suppose V rms = 240 V for an alternating current power source. What is the amplitude of the voltage for the source
a rocket starts from rest and moves upward from the surface of the earth. for the first 10s of its motion the vertical
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