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The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m. Neglect any friction between the blocks and the slots, and neglect the mass of the springs.
(a) Determine the value of x for each spring.
(b) Calculate the normal force N exerted by the side of the slot on the block.
A light bulb marked "100 W [at] 120 V" is screwed into a socket at one end of a long extension cord in which each of the two conductors has a resistance of 0.776
A crate of mass 9.8 kg is pulled up a rough incline with an initial speed of 1.46 m/s. How much work is done by the gravitational force on the crate
A contact lens is made of plastic with an index of refraction of 1.58. The lens has an outer radius of curvature of +1.99 cm, What is the focal length of the lens
a 1kg mass hangs from a cord wrapped around a solid disk pulley with a mass of 3kg and radius 25cm. the cord is 2m long
In a certain organic molecule, the nuclei of two carbon atoms areseparated by a distance of 0.35 \rm nm. What is the magnitude of the electric force between them ?
Seven-and-a-half seconds later the astronaut comes into contact with the shuttle. Elucidate what was the initial distance from the shuttle to the astronaut
Waves moving on a lake have a speed of 2.8 m/s and a distance of 1.6 m between adjacent crests. Find the period of the wave motion
A jetliner, traveling northward, is landing with a speed of 69m/s. Compute the average accelaration(magnitude and direction) of the plane during landing
The fundamental frequency of a closed pipe is 108 Hz. Find the next higher harmonic for this tube
A 5kg steel ball strikes a wall with a speed of 8m/s at an angle of 60.0° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ..
Air in a cylinder is compressed to one-tenth of its original volume without change in temperature. What happens to its pressure? Imagine now that a valve is opened in order to restore the initial pressure value. What percentage of the molecules ha..
Two 0.11 gram pith balls are suspended from the equal point by threads 50 centimeter long. Obtain the magnitude of the charge on each ball
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