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a grinding wheel in the shape of a solid disk is 0300m in diameter and has a mass of 250kg the wheel is rotating at
light from a 580-nm monochromatic source is incident upon the surface of fused quartz n 156 at an angle of 28deg what
we can roughly model a gymnastic tumbler as a uniform solid cylinder of mass 700kg and diameter 100m a if this tumbler
an airplane propeller is 205m in length from tip to tip with mass 122 kg and is rotating at 2200 rpm revmin about an
find the required angular speed omega of an ultracentrifuge for the radial acceleration of a point 300cm from the axis
a large cylindrical tank contains 0720 of nitrogen gas at 220 and 120times105 absolute pressure the tank has a
compare the shift in frequency if a 1750 hz source is moving toward you at 15ms versus you moving toward it at 15 ms
a calculate the magnitude of the angular momentum of the earth in a circular orbit around the sun is it reasonable to
a man of mass m 700 kg pushes a rotating platform of mass m 850 kg and radius r 300 m at the playground with a
a bag of sugar weighs 700 lb on eartha what would it weigh in newtons on the moon where the free-fall acceleration is
a 220- bullet embeds itself in a 160- block which is attached to a spring of force constant 780 if the maximum
two objects with masses of 260 kg and 650 kg are connected by a light string that passes over a frictionless pulleya
two forces are applied to a car in an effort to move it as shown in the following figure where f1 434 n and f2 387 n
according to the shop manual when drilling a 128-mm-diameter hole in wood plastic or aluminum a drill should have a
the heaviest invertebrate is the giant squid which can have a weight of about 23 tons spread out over its length of 60
explain why the electrostatic interaction in ionic solids would if alone result in the collapse of the crystal to zero
a wave with a frequency of 1200 hz propagates along a wire that is under a tension of 800 n its wavelength is 172 cm
an object with a mass of m 48 kg is attached to the free end of a light string wrapped around a reel of radius r 0265
a 200mw laser pulse is focused with a lens to a diameter of 15 mu ma what is the laser beams electric field amplitude
a camera is focused on a group of people 3 m from the lens wjocj jas a focal lenght of 50 mm 005 ma what is the
a glass light pipe in air will totally internally reflect a light ray if its angle of incidence is at least 39 what is
two 520g blocks of wood are 20 rm m apart on a frictionless table a 12g bullet is fired at 380ms toward the blocks it
an emphysema patient is breathing pure o2 through a face mask the cylinder of o2 contains 040 ft3 of o2 gas at a