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A uniform 110 g rod with length 70 cm rotates in a horizontal plane about a fixed, vertical, frictionless pin through its center. Two small 38 g beads are mounted on the rod such that they are able to slide without fric- tion along its length. Initially the beads are held by catches at positions 10 cm on each sides of the center, at which time the system rotates at an angular speed of 14 rad/s . Sud- denly, the catches are released and the small beads slide outward along the rod.
Find the angular speed of the system at the instant the beads reach the ends of the rod. Answer in units of rad/s.
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of magnitude 196 ?C on each plate. What is the dielectric constant of the dielectric slab
A 0.45mW laser produces a beam of light with a diameter of 1.5mm. What is the average intensity of this beam
A hollow conducting sphere is surrounded by a large concentric, spherical, Using Gauss's Law, find the charges and the electric fields everywhere
Assuming that he starts from rest when the rope is horizontal, find out the tensions in the rope that are required to make him follow his circular path at each of the following points.
A silver wire has resistivity ? = 1.96 × 10-8 ?·m and a cross-sectional area of 5.00 mm2. What is the displacement current in the wire at that time
What mass of water (at 4.0 C) can be contained in a rectangular box whose dimensions are 10 cm by 5.00 cm by 1.00 cm? The density of water at 4C is 1.000 X 10 kg/m-cubed.
From what height did the student fall? Assume that the only force acting on him throughout the collision is that as a result of the ground.
if the magnitude of the force between two identical 100. microcoulomb negative charges is 9N. How far apart are the charges
Point charges q1=? 4.80nC andq2=+ 4.80nC are separated by distance 3.90mm , forming an electric dipole, Find the magnitude of the electric dipole moment
What is the diameter of a copper sphere that has the same mass as a 2.00 cm x 2.00cm x 2.00 cm cube of aluminum?
A light ray is incident from air onto the surface of a very quiet lake. what is the index of refraction of the water
In an old-fashioned amusement park ride, passengers stand inside a 5.1--diameter hollow steel cylinder with their backs against the wall. What is the minimum angular speed
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