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A platform is rotating at an angular speed of 2.5 rad/s. A block is resting on this platform at a distance of 0.34 meter from the axis. The coefficient of static friction between the block and the platform is 0.75. Without any external torque acting on the system, the block is moved toward the axis. Neglect the moment of inertia of the platform and obtain the smallest distance from the axis at which the block can be relocated and still remain in place as the platform rotates.
Consider a small car of mass 1188 kg and a large sport utility vehicle (SUV) of mass 4360 kg. Find the speed of the small car
A piece of copper wire is formed into a single circular loop of radius 10 cm. A magnetic field is oriented parallel to the normal to the loop, find the average electrical energy dissipated in the resistance of the wire
You have 31m of wire, which you want to use to construct a 45cm diameter coil whose magnetic field at its center will exactly cancel the earth's field of 0.55 gauss. What current will your coil require
In the Bohr theory of the hydrogen atom, an electron moves with constant speed in a circular orbit about a proton, where the radius of the orbit is 0.53 x 10-10 m, Determine the electrostatic force exerted by the proton on the electron
your digital camera has a lens with a 50 mm focal length and a sensor array that measures 4.82 mm x 3.64 mm. Suppose you're at the zoo, how far away from the object should you be
Why should you maximize the volts/division scale on the gradecule when determining the amplitude of the waveform
There are two weights hanging from a pulley, one on the ground (3.00 kilogram) and one hanging (5.00 kilogram). Determine the speed of the other pulley when the 5 kilogram pulley hits the ground
A 45.0 resistor, a 0.100 H inductor, and a 10.0 µF capacitor are connected in series to a 60.0 Hz source. The rms current in the circuit is 2.55 A. Find the rms voltages across the inductor
question how much energy can be stored in a capacitor with two parallel plates each with an area of 15.0 cm2 and
Zinc has a work function of 4.30eV. What is the longest wavelength of light that will release an electron from a zinc surface, What is the maximum possible speed of the electron
a a standing wave is described by the expression zxt6sinx2cos40pit find the amplitude frequency wavelength velocity and
A sound wave moving through water has a frequency of 256Hz and a wavelength of 5.77m.What is the speed of sound in water.
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