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1. The pendulum shown in the figure consists of a thin disk and two slender rods. The disk has a mass of 2 kg, the longer rod AB has a mass of 6.5 kg and the shorter rod CD has a mass of 2.5 kg. Determine the moment of inertia of the pendulum about an axis perpendicular to the page passing through
(a) point O, and
(b) the mass center G of the pendulum.
The plates of a spherical capacitor have radii 33.0 mm and 46.0 mm. What must be the plate area of a parallel-plate capacitor
Two vectors A and B have the similar magnitude of 100 N (they represent forces of equal strength). What is the magnitude of the resultant vector of A and B if they are parallel and pointing in opposite directions.
Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. what is his speed after the collision
At a certain location, the Earth's magnetic field has a magnitude of 5.1 x 10-5 T and points in a direction that is 67 deg below the horizontal. Find the magnitude of the magnetic flux through the top of a desk that measures 140cm by 70 cm
If a curve with a radius of 60 meters is properly banked for a car traveling 60 km/hr, what must the coefficient of friction be for a car on the same curve traveling 90 km/hr.
what will be the induced emf magnitude in the short coil. A 77.9 kg fireman slides down a 4.13 m pole by applying a frictional force of 343 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches the ground.
you can obtain a rough estimate of the size of a molecule by the following simple experiment. let a droplet of oil
A resistor with R = 2.4 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 41 V. Find the amplitude of the current through the resistor
An electron in Thomson's apparatus moves perpendicular to a B-field along a path of radius12.15 cm. If imposition of an E-field of 18.90 mkV makes the path straight, find B.
a farsighted man has a contact lens prescription of 2.8 diopters enabling him to see items in focus when they are no
A positive object touches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves? Answer They move closer together. They are unaffected. They separat..
q1. a 75-kg person sits on a 3.7-kg chair. each leg of the chair makes contact with the floor in a circle that is 1.5
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