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A sphere of mass m and radius r is attached to the rim of a disk (mass M, radius R). The disk is rotating counter-clockwise with a constant period T around an axis through the center of the disk. Neglect friction. Consider the directions A through I at the indicated position of the sphere. If the disk has a radius R=0.5 m and a mass M=0.6 kg, and the sphere has a radius r=0.02 m and a mass m=0.37 kg, and if the period of rotation is T=3 s. What is the magnitude of the net force on the sphere?
What is the main optical element of a refracting telescope? A department store sells an "astronomical telescope" with anobjective lens of 30 cm focal length and an eyepiece lens of focallength 5 mm. What is the magnifying power of this telescope?
a doppler speed meter operating at exactly 1.02 x 105 hz emits sound waves in the direction of anoncoming baseball. the
when an object falls and hits the floor without bouncing off the floor the normal force of the floor on the object
A certain string on a piano is tuned to produce middle C (f1= 261.63 Hz) by carefully adjusting the tension in the string
Calculate the shear stress of the crude oil at the walls, and plotting the velocity distribution graph for the same.
A 610 kilogram elevator starts from rest and moves upward for 3.10 second with constant acceleration until it reaches its cruising speed, 1.66 m/s. Find the average power of the elevator motor during this period
A 30 μF capacitor initially charged to 30 μC is discharged through a 2.50 kΩ resistor. Determine how long does it take to reduce the capacitor charge to 1.00 ΩC
Force from crutches. A patient with a broken leg stands using a pair of crutches. The crutches support 75% of the 81 kg patient's weight. Find the force each crutch applies to the patient
two resistors connected in series have an equivalent resistance of 774.9 ohm. when they are connected in parallel their
A 640-g hollow ball 19cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
A small sphere with mass 2.60g hangs by a thread between two large parallel vertical plates 5.00cm apart. The plates are insulating and have uniform surface charge densities and . The charge on the sphere is = 8.70×10?6C . What potential differenc..
In the process of compressing n moles of an ideal diatomic gas toone-fifth its initial volume, 190 KJ of work is done on the gas. How much work is removed from the gas
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