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AN object of a mass of 8 kg revolves in a circle of a radius of 3 mattached by a massless string to the center. There is nogravity or friction. It makes a complete turn every 5seconds. If a constant decelerating torque of 9 is applied tothe mass in order to stop the rotation:
What is the angular acceleration, how long does it take the system to stop, how far in radians will it go, how many turns is this equal to?
The far point of a nearsighted person is 8.4 m from her eyes, and she wears contacts that enable her to see distant objects clearly. How high is the image formed by the contacts
A long uniform rod of length 1.00 m and mass 6.00 kg is pivoted about a horizontal, frictionless pin through one end. Find the components of the reaction force at the pivot
The aorta carries blood away from the heart at a speed of about 40 cm/s and has a radius of approximately 1.1 cm. find the approximate number of capillaries in the human body
A long straight cylindrical wire conductor of radius R carries a current I of uniform current density in the conductor. Find the magnetic field outside the wire
Unpolarized light passes through two polarizers in turn with polarization axes at 41° to one another. What is the fraction of the incident light
A volleyball play jumps into the air by first lowering his body by. .4 m and then accelerating by straightening his legs rapidly. what is the force exerted by his feet on the floor
A 125 g wire is held under a tension of 218 N with one end at x = 0 and the other at x = 12.0 m. At time t = 0, pulse 1 is sent along the wire from the end at x = 12.0 m. At time t = 25.5 ms, pulse 2 is sent along the wire from the end at x = 0. A..
A permanent dipole is at rest at origin of a coordinate system with a random orientation. What is the equilibrium orientation of the dipole
A thin film of oil (n = 1.12) is located on smooth, wet pavement. When viewed from a direction perpendicular to the pavement, What is the minimum thickness of the oil film
String 1 in the figure has linear density 2.90 and string 2 has linear density 3.20 . A student sends pulses in both directions by quickly pulling up on the knot, then releasing it. Consider the pulses are to reach the ends of the strings simultaneou..
A mass m is connected to the bottom of a vertical spring whose force constant is k. Attached to the bottomof the mass is a string that is connected to a second mass m, as shown in the figure.
A thin film of oil (n = 1.30) is located on smooth, wet pavement. When viewed perpendicular to the pavement, How thick is the oil film
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