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A spherical navigation buoy is tethered to the lake floor by avertical cable. The outside diameter of the buoy is1.00m. The interior of the buoy consists of an aluminum shell1.0cm thick and the rest is solid plastic. The density of aluminumis 2700 kg/m3. The buoy is set to float exactlyhalfway out of the water. Determine the tension in the cable.
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the wood pendulum
a 170 g uniform rod pivoted at one end.The other end is attached to a horizontal spring. What is the rod's oscillation period
A 55-kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 250 m from the antenna
A small metallic bob is suspended from the ceiling by a thread of negligible mass. The ball is after that set in motion in a horizontal circle so that thread describes a cone. Compute the magnitude of the angular momentum of the bob about a vertic..
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
A tennis ball has a mass of 0.057kg. A professionaltennis player hits the ball hard enough to give it a speed of50m/s(about 120mph). The ball hits a wall and bounces back withalmost the same speed(50m/s). The ball is crushed 2cm(0.02m) at theinsta..
A 5.0 ? resistor is connected in series with a 10.0 ?resistor. This combination is then connected in parallel witha 7.5 ? resistor. The three resistor network is then connectedin series with a 15 ? resistor.
a block mass 15.92kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.11m/s^2. What is the tension in the cable
a jugglers hands are 80 cm apart and the balls being juggled reach a maximum height of 100 cm above the jugglers
A hypodermic syringe is attached to a needle that has an internal radius of 0.303 mm and a length of 3.02 cm. What must the pressure of the fluid in the syringe be in order to inject the solution at a rate of 0.253 mL/s
An unknown capacitor is charged by a 100-V source through a 1 M? resistor. determine the capacitance of the capacitor
If the accelerating plates are 1.60 apart, and have a potential difference of 2.60×10^4, what is the magnitude of the uniform electric field between them.
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