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A slender rod of length l is pivoted about a point C located at a distance b from its center G. It is released from rest in a horizontal position and swings freely. Determine
(a) The distance b for which the angular velocity of the rod as it passes through a vertical position is maximum
(b) The corresponding values of its angular velocity and of the reaction atC.
Find the minimum diameter of an l = 16.3 m long steel wire that will stretch no more than 7.39 mm when a mass of 343 kg is hung on the lower end
The magnitude of the electric field due to a small dipole is measured to be 250 N/C at a location on the axis of the dipole, 2 cm from the center of the dipole. Approximately what is the magnitude of the electric field due to the dipole at a location..
A hockey stick delivers an impulse of 4.0{\rm kg \cdot m/s} causing the puck to move off in the opposite direction with the same speed. what is the mass of the puck
A bullet of mass 7.7 g is fired into aninitially stationary block and comes to rest in the block. The block, of mass 1.21 kg, is subject to nohorizontal external forces during the collision with the bullet.After the collision, the block is observe..
You're doing a double-slit experiment with two different colors. What's the wavelength of that color
A car travels at a constant speed around a circular track whose radius is2.2km. The car goes once around the track in290s. What is the magnitude of the centripetal acceleration of the car?
light of wavelength 455 nm is incident on a narrow slit. the diffraction pattern is viewed on a screen 3.11 m from the
A middle-aged man starts to wear eyeglasses with lenses of2.0 D that allow him to read a book held as close as 25 cm.Several years later, he finds that he must hold a book no closerthan 35 cm to read it clearly with the same glasses, so hegets new..
A bartender slides a beer mug at 1.8 m/s towards a customer at the end of a frictionless bar that is 1.4 m tall. What are the speed and direction of the mug at impact
The atoms of a carbon dioxide molecule (C02) are arranged in a line, with the carbon in the center and the oxygens on either side at a distance of 0.116 nm. In the absence of vibrations, calculate the energy (in micro electronvolt) of the third ro..
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530 at a wavelength of 410 nm (violet). what is the angle of refraction for each wavelength
When an electric circuit is being assembled, a common practice is to twist together two wires carrying equal currents in opposite direction
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