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The "Giant Swing" at a county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. (See the figure below (Figure 1) ) Each arm supports a seat suspended from a 5.00m -long cable, the upper end of which is fastened to the arm. Take R = 1.90m.
Find the time of one revolution of the swing if the cable supporting the seat makes an angle of θ = 30o with the vertical.Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.50kg wrench from 7.00m above the ground and measure that it hits the ground 0.811 slater. You also do enough surveying to determine that the circumference of the planet is 6.24x104km .
two vibrations at right angles to one another are described by the equationsx 10 cos5pity
a 12,000 volt line produces 100,000 watts with a current of8.3 amps. If the voltage were only 240 volts, what would be the power expended as heat
A cylindrical chamber containing an ideal diatomic gas is sealed by a movable piston with cross-sectional area A = 0.0015 m2. What is the final volume after the mass comes to rest
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology, What is the radius of the arc of the teardrop at the top
What is the reading of the water manometer in cm water? What is the reading if the person sits up, placing the top of the fluid 55.0 cm above the tap? The fluid density is 1.05 g/cm3.
what is the cost of electrical energy used in charging the battery
A 7.7cm diameter horizontal pipe gradually narrows to 6.7cm . When water flows through this pipe at a certain rate, What is the volume rate of flow
The decibel level of ajackhammer is 125 dB relative to the threshold of hearing. Determine the sound intensity produced by the jack hammer
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 12.0 m/s, and the distance from the limb to the level of the saddle is 4.00 m.
the magnifying power of an astronomical telescope in the normal adjustment poition is 20.if the lenght of the telescope
a thin flat washer is a disk with an outer diameter of 17 cm and a hole in the center with a diameter of 3 cm. the
It's generally okay to ignore relativistic effects when a particle's speed is less than 1.0% of the speed of light, Find the accelerating potential difference that will bring electrons to that speed, starting from rest
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