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A torture technique used by inquisition included a pendulum with attached blade. The length and mass of the wooden rod are L=5m and M=10kg, and the steel disk blade has m=30kg and radius R=30cm. While the pendulum swings, the whole system moves vertically down at a rate of 1mm/min. Considering that the pendulum has a small amplitude, how many oscillations the pendulum will make when it has moved 1m distance downward?
a toroidal selenoid has 500 turns cross-sectional area 6.25cm and mean radius 4.00cma calculate the coils self
a 2.00 -long 480 rope pulls a 6.00 block of ice across a horizontal frictionless surface. the block accelerates at 2.00
When a potential difference of 12 V is applied to a wire 6.8m long and 0.32mm in diameter the result is an electric current of 2.2A. What is the resistivity of the wire
Light of wavelength 550 nm falls on a 0.50 mm wide slit and forms a diffraction pattern on a screen 1.7 m away. Find the width of the central maximum
Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. Determine the wavelength of the second source
A 91 crate, starting from rest, is pulled across a floor with a constant horizontal force of 390. What is the final speed of the crate
A 1300 kg cartraveling at a speed of 37.0 {\rm m}/{\rm s} skids to a halt on wet concrete where mu_k = 0.500 . How long are the skid marks
A uniformly charged plastic disk has a radius of 0.270 m. At what distance from the center along the central perpendicular axis is the magnitude of the electric field equal to one-half the magnitude of the field at the center of the surface of the di..
Starting from rest, a 94-kg firefighter slides down a fire pole.The average frictional force everted on him by the pole has amagnitude of 810 N, and his speed at the bottom of the pole is 3.9m/s. How far did he slide down the pole?
the following four expressions are representing simple harmonic motion in one dimension.a. xtc1ejwt c2-ewtb. xt b1
at t 0 a stone is dropped from the top pf a cliff above a lake. another stone is thrown downward 1.6s later from the
a speedboat starts from rest and accelerates at 2.01 ms2 for 7.30 s. at the end of this time the boat continues for an
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