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A uniform disk of radius r = 120 mm is welded at its center to two elastic rods of equal length with fixed ends at A and B. Knowing that the disk rotates through an 8° angle when a 500-mN . m couple is applied to the disk and that it oscillates with a period of 1.3 s when the couple is removed, determine
(a) the mass of the disk,
(b) the period of vibration if one of the rods is removed.
A metal strip 8.99 cm long, 0.779 cm wide, and 0.714 mm thick moves by constant velocity through a uniform magnetic field B= 0.970 mT directed perpendicular to the strip, as shown in Fig.28-37. A potential dissimilarity of 3.79 µV is measured between..
A rod of 2.0-m length and a square (2.0 mm x 2.0 mm) cross section is made of a material with a resistivity of 6.0 x 10 ^-8 ohms m. What is heat generated in the rod
Calculate the mechanical advantage of a group of pulleys used to raise an engine from a car. The engine is raised 1.2 m with the pulleys when 4.8 m of rope is pulled through the pulleys.
The right field wall at Yankee stadium is 96m from the home plate. The outfield fence is 2.57m high. When a home run is hit over the right field fence, what is the minimum initial speed of the ball if the initial velocity makes an angle of 35o wit..
A 229.0 micro-Farad capacitor is connected in series with 210 Ohm resistor and a 7.3 Volt battery. What is the total charge on the capacitor
A parallel-plate capacitor is designed so that the plates can be pulled apart. What is the potential difference between the plates
A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown, What is the horizontal component of the ball's velocity just before it is caught
A garden hose of inner radius 0.5 cm carries water at 2.0 m/s. The nozzle at the end has radius 0.20 cm. How fast does the water move through the nozzle
How much heat transfer in kJ is necessary to raise the temperature of a 0.386 kg piece of ice from -17.4ºC to 128.2ºC , including the energy needed for phase changes? (cice= 2090 J/kgºC, cwater = 4186 J/kgºC, csteam= 1520 J/kg, Lvap= 2256 kJ/kg, a..
a 2598.79 lbs. go cart and driver rounds a curve. If the centripetal force on the go cart and driver is 1250 lbs. What is the radius of the curve
White light is incident on a soap film (n = 1.30) in air. The reflected light looks bluish because the red light (? = 695 nm) is absent in the reflection, What is the minimum thickness of the soap film
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