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A vertical spring stretches 3.8 cm when a 6-g object is hung from it. The object is replaced with a block of mass 30 g that oscillates up and down in simple harmonic motion. Calculate the period of motion.
Explain what is the best way to keep a balance between scope and budget while developing a project?
A 94 g stone is whirled in a horizontal circle on the end of a 73 cm long string. The stone takes 1.10 s to make each complete revolution. Conclude the angle that the string makes with the horizontal.
An ultracentrifuge is a rotating device that can produce acceleration up to 106 g. If the distance from the center of the centrifuge out to the end of the rotating arm (where the sample goes) is 20 cm, what is the rotation speed inrevolutions per m..
a small metal bead labeled a has a charge of 25 nc. it is touched to metal bead b initially neutral so that the two
Suppose a recently found elementary particle has an average life time, T = 10.6 ns, when at rest. find how fast must it be moving relative to the velocity of light
A 70-? electrical appliance and a 90-? electrical appliance are plugged into the outlets of a house. By what factor will the power used change
a light with wavelength 411nm is shined on 15cm of water with 850nm of oil on top of it. the oil has an index of
a transparent film n 1.26 is deposited on a glass plate n 1.52 to form a nonreflecting coating. the film has a
Huygens' principle (first described by the Dutch scientist Christiaan Huygens in 1678) uses geometry to determine the shape of a wavefront at a time.
A planet orbits a star, in a year of length 2.10 x 107 s, in a nearly circular orbit of radius 1.31 x 1011 m. With respect to the star, evaluate the tangential speed of the planet
The human eye is sensitive to orange light having a frequency of about 4.95 1014 Hz, What is the energy in joules of the photons associated with this light
Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased
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