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In trying to move across a slippery icy surface, a 175-lb man uses two ropes AB and AC. Knowing that the force exerted on the man by the icy surface is perpendicular to that surface, determine the tension in each rope.
A flat circular coil with 102 turns, a radius of 3.92 10-2 m, Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current
A ?ywheel in the form of a heavy circular disk of diame
The nucleus of an atom consists of neutrons and protons (no electrons). A nucleus of a carbon-12 isotope contains six neutrons and six protons, while a nitrogen-14 nucleus comprises seven neutrons and seven protons.
A mouse of mass m jumps on the outside edge of a freely turning ceiling fan of rotational inertia I and radius R. By what ratio does the angular velocity change
At a construction site, a 62.0 kg bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 84.0 kg box on a horizontal roof. Find the friction force on the box
A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, What fraction of the power carried by the line in this
Two converging lenses are used in a particular device. The first lens (the one closest to the object) has a focal length of 200 mm. Find the distance of the final image along with its magnification
Mary weighs 505 N. She walks down a flight of stairs to a level 5.50 m below her starting point. What is the change in Mary’s potential energy?
an engineering student has made a robot mouse that is running around a circle on a horizontal table. the mouse is kept
Defibrillators are used to revive a person when their heart has stopped beating. How do they work? What care must the person administering the treatment take
A horizontal vinyl record of mass 0.10kg and radius 0.10 m rotates freely about a vertical axis through its center with a rotational speed of 5.10 rad/s.
The objective lens of a telescope is a symmetric glass lens with 100cm radii of curvature. The eyepiece lens is also a symmetric glass lens. What are the radii of curvature of the eyepiece lens
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