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A 2.71 kg disc is attached to the end of a string whose length is 0.55 m. The disc slides without friction on a horizontal surface as indicated in the Figure. If the string can withstand a maximum tension of 134.7 N, what is the maximum tangential speed the disc can have before the cord breaks?
The disc is whirled in a vertical circle of the same radius about a fixed point. Find the tension at the top if the speed at the top is 2.6538 m/s.
Certain stars are thought to collapse at the end of their lives, combining their protons and electrons to form a neutron star. what would be the radius of the star
An air track glider undergoes a perfectly inelastic collision with an identical glider that is initially at rest. What fraction of the first gliders initial kinetic energy is transformed into thermal energy in this collision?
at what rate must the potential difference increase across a 1.50 u f capacitor to create a 0.900 a displacement
Tarzan swings on a 34.0-m-long vine initially inclined at an angle of 31.0° with the vertical, What is his speed at the bottom of the swing if he starts from rest
a proton travels with a speed of4.90106ms at an angle of 65degwith the direction of a magnetic field of magnitude
A beam of light with red and blue components of wavelengths 670 nm and 425 nm, respectively, strikes a slab of fused quartz at an incident angle of 30 degree. On refraction, the different components are separated by an angle of 1.31 X 10^-3 rad. I..
An atom in an excited state 4.02 eV above the ground state remains in that excited state 2.50 ?s before moving to the ground state. Find the wavelength of the emitted photon
At a construction site, a 23.0 bucket of concrete is connected over a very light frictionless pulley to a 310 box on the roof of a building. (See the figure.) There is no appreciable friction on the box, since it is on roller bearings. The box starts..
If the range of discharge times that can be handled effectively is from 10.0 μ s to 6.00 ms, illustrate what should be the (a) lower value and (b) higher value of the resistance range of the resistor?
a 8.0-m long wire with a mass of 10 g is under tension. a transverse wave for which the frequency is 570 hz the
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
A small sphere of mass m and radius r slides down a smooth stationary large sphere of radius R under the action of gravity from a position of rest at the top. Find the value of theta at which the particle falls off
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