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Q1. A solid cylindrical disk has a radius of 0.14 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 60-N force is applied tangentially to the disk, perpendicular to the radius, disk acquires an angular acceleration of 158 rad/s2. What is the mass of disk?
Q2. An electron is projected vertically upward with a speed of 1.65x10^6 m/s into a uniform magnetic field of 0.160 T that is directed horizontally away from the observer. What would the radius of the circle be?
This magnetic field accelerates the electron in a circular motion. What is radius of the circle. The final situation is observed to be all water at 18°C. What was the mass of the ice cube.
How to find the magnetic field
How much work is completed by the system in this process. Determine the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C. How much work is completed by the system in this process.
What is an index of refraction of the liquid
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A dockworker applies a constant horizontal force of 84.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.5\({\rm m}\) in a time 4.80\({\rm s}\)
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
What is the pressure inside the thermos
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.
What is the ratio of the amplitude
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wave-lengths are observed while the hydrogen relaxes back to the ground state. What is the wavelength of the incident beam.
How to find the position and height of an image
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