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A uniform rod of mass 3.20×10?2 and length 0.430 rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. Two small rings, each with mass 0.190 , are mounted so that they can slide along the rod. They are initially held by catches at positions a distance 5.50×10?2 on each side from the center of the rod, and the system is rotating at an angular velocity 25.0 . Without otherwise changing the system, the catches are released, and the rings slide outward along the rod and fly off at the ends. 1) What is the angular speed of the system at the instant when the rings reach the ends of the rod? (find w_system) rev/min 2) What is the angular speed of the rod after the rings leave it? (w_rod) rev/min
A basketball player achieves a hang time of 0.987 s in dunking the ball. What vertical height will he attain
Three 1.50-V cells, each with an internal resistance of 0.0500?, are connected in series to form a battery with a current of 0.850A in each cell. Find the current in the external circuit
A major leaguer hits a baseball so that it leaves the bat at a speed of 32.0 and at an angle of 36.9 above the horizontal. You can ignore air resistance. What is the direction of the baseball's velocity when it returns to the level at which it left..
A 0.15-kg bullet is fired with a velocity of 86.9 m/s into a solid cylinder of mass 24.1 kg and radius 0.23 m. Find the angular speed of the system after the bullet strikes and adheres to the surface of the cylinder
An initially stationary 2.0 kg object accelerates horizontally and uniformly to a speed of 20 m/s in 1.9 s. (a) In that 1.9 s interval, how much work is completed on the object by the force accelerating it.
An RLC circuit has a resistance of 2.0 k?, a capacitance of 8.0 µF, compute the phase shift between the current and the voltage
A segment of wire carries a current of 20 A along the y-axis from y = 2.0 to y =0 and then along the x axis from x = 0 to x =-4.0 m. What is the magnitude of the force on this segment of wire
A sound wave travels twice as far in neon (Ne) as it does it krypton (Kr) in the same time interval, What is the temperature of the neon
The density of a 3.0-m long rod can be described by the linear density function ?(x) = 135 g/m + 13.6x g/m2. find the center-of-mass of the rod
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash, Assuming that the flash lasts for 4.6 ms, find the effective power or "wattage" of the flash
Arie van Wijngaarden shoots a puck at his goaltender father. Arie stands 30 meters from a net having dimensions 3 meters x 2 meters. Assuming his father obscures 1/3 of the net,
What apparent free-fall acceleration is experienced by the managers remaining on the rim assume that the average mass for each inhabitant is 65kg.
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