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a fiber optic cable nfiber 206 is submerged in water nwater 135 what is the critical angle for light to stay inside
you inflate the front tires on your car to 29 psi later you measure your blood pressure obtaining a reading of 13884
two astronauts each having a mass of 880 kg are connected by a 100 m rope of negligible mass they are isolated in space
a block of wood has a mass of 372 kg and a density of 579 kgm3 it is to be loaded with lead so that it will float in
the puck in the figure below has a mass of 0280 kg its original distance from the center of rotation is 400 cm and it
in an electric shaver the blade moves back and forth over a distance of 20 mm the motion is simple harmonic with
an extremely thin film of soapy water n 130 sits on top of a flat glass plate with n 111 the soap film has a red
a uniform cylindrical pulley of mass m127 kg and radius r0636 m rotates freely about a fixed horizontal axis a block of
a charged particle is injected at 121 ms into a 00743-t uniform magnetic magnetic field perpendicularly to the field
two converging lenses each of focal length 151 cm are placed 404 cm apart and an object is placed 300 cm in front of
a 480 kg object is released from rest while fully submerged in a liquid the liquid displaced by the submerged object
a converging lens is placed 220 cm to the right of a diverging lens of focal length 140 cm a beam of parallel light
a spherical source radiates sound uniformly in all directions at a distance of 16 m the sound intensity level is 10-4
a 200 cm high object is placed 30 cm in front of a concave mirror if the image is 60 cm high and virtual what is the
a sound source emits sounds of frequency 210 hz that travel through still air at 340 ms this sound source moves with a
assuming bohr model of atom the electron in hydrogen atom orbits nucleus at distance of 0029 nm mass of nucleus is 167
a concave makeup mirror is designed so that a person 22 cm in front of it sees an upright image magnified by a factor
a spherical mirror is to be used to form an image four times as tall as an object on a screen positioned 46 m from the
a convex spherical mirror whose focal length has a magnitude of 198 cm is to form an image 122 cm behind the mirrora
a meterstick of negligible mass has a 015kg mass at its 38cm mark and a 035kg mass at the 78cm markpart a where should
you are in charge of calibrating the radar guns for a local police department one such device emits microwaves at a
a baseball is thrown with an initial velocity of 20 ms along the horizontal axis and 15 ms along the vertical axis the
two metal cylinders appear to be identical you measure the radii and find them to be the same you dont have a scale or