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A .200 kg plum bob is attached to a string and the string isconnected to the ceiling. The distance from the ceiling tothe center of mass of the plum bob is 1.00m. The plum bob isdisplaced 8.00cm and released. After 500 cycles it isobserved that the amplitude has decreased by 50%.
a) What is the damping constant?
b) How many cycles does it take for the plum bob to lose halfof its energy?
Your boss at the Cut-Rate Cuckoo Clock Company asks you whatwould happen to the frequency of the angular SHM of the balancewheel if it had the same density and the same coil spring, By what factor would the frequency change
The position of a 30 g ball is measured to be 27.3 cm +/- .004 cm (that is: the position is 27.3 cm with an uncertainty of .004 cm) What is the uncertainty in the velocity of the ball
Two converging lenses, each of focal length 14.2 cm, are placed 59.9 cm apart, and an object is placed 26.6 cm in front of the first. determine the magnification of the system
A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 6880 N/C. How many excess electrons or protons reside on the drop
A coffee filter of mass 1.2 grams dropped from a height of 3 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did air molecules gain from the falling coffee filter.
A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.10 m anda mass of 0.008 kg. A uniform magnetic field ofmagnitude 0.075 T is directed from the ceiling to the floor.
The former is on the left in contact with air and the other in contact with a liquid of index 1.4 The refractive index of the glass is 1.50. Find the positions of the foci, principal planes, and focal length of the system.Use the matrix approach
A luminous point is moving at speed Vo toward a spherical mirror of radius R along its axis. What is the speed at which the image is moving
A block is placed at the bottom of the incline and given an initial velocity V0 directed along the incline. Find what should be the angle of the incline a
A 2.00×104 kg railroad car is rolling at 3.00 m/s when a 7000 kg load of gravel is suddenly dropped in. What is the cars speed just after the gravel is loaded
In the bohr model of the hydrogen atom, an electron is the 6th excited state moves at a speed of 60km/s in a circular path having a radius of 2mm.
Suppose a constant ratio of 13.60 counts per minute per gram of living matter. A sample of a petrified tree was found to give 1.8 counts per minute per gram. How old is the tree.
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