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A horizontal frictionless table has a small hole in its center. A block "A" of mass 3 kg on the table is connected to another block "B" of mass 2 kg hanging beneath by a string of negligible mass which passes through the hole. The block B is stationary and block A rotates at constant r = 24 cm with an UNKNOWN steady angular speed "w". Let g = 10m/s^2. Calculate the unknown angular speed "w" . Answer in units of Hz. I got 0.838 Hz but its wrong. Not sure why. Please show some kind of work for credit.
What is the radius of the pen. How far should it now sail to reach its original destination.
Two Resistors of R1 = 3.23 ohm and R2 = 5.95 ohm are connecred in series to a battery whith an EMF of 24.0 v, Find the current I1 through the first resister
A rifle is aimed horizonatally at a target 50 m away. The bullet hits the target 2.0cm below the aim point. what was the bullets speed as it left the barrel
The earth has a vertical electric field at the surface, pointing down, that averages 120 N/C. What is the excess charge on the surface of the earth
A car travelling east at 41.2 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25 m/s in 3.90 s.
What is the potential difference in volts between the plates.
A 0.401 kg bead can slide on a curved wire, If the wire is frictionless and the bead is released with an initial speed of 12.8 m/s in the forward direction then find the speed of the bead at B
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
If a system in equilibrium with two masses m1 and m2 are placed at distances d1 and d2 from the fulcrum, then f1 d1= f2 d2. Is this the same as saying that m1 d1= m2 d2? Give details.
A thin, uniformly charged spherical shell has a potential of 533 V on its surface. Outside the sphere, at a radial distance of 24.0 cm from this surface, Calculate the radius of the sphere
what is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 4.63m and an eyepiece whose focal length is 3.16cm
A 20x telescope has a 12-cm diameter objective lens. What minimum diameter should the eyepiece lens have to collect all the light rays from an on axis distant source.
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