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the depth of the potential well for free electrons in a metal can be correctly determined with observing that the
closest neighbor our closest stellar neighbor proxima centauri is 43 light years away it has been suggested that tv
a mica sheet 114 microm thick is suspended in air in reflected light there are gaps in the visible spectrum at 428 535
a strange quantum event occurs involving a 3 kg ball of cheese that splits into two 05 kg balls of chocolate momentum
a copper rod of cross-sectional area 122 cm2 has one end immersed in boiling water and the other in an ice-water
a martian leaves mars in a spaceship that is heading to venus on the way the spaceship passes earth with a speed v 080c
two protons in an atomic nucleus are normally separated by a distance of 20 x 10-15 m the electric repulsion force
a pendulum is constructed from a thin rigid and uniform rod by a small sphere attached to the end opposite the pivot
a 066-kg metal sphere oscillates at the end of a vertical spring as the spring stretches from 014 to 025 m relative to
a 27-kg copper block is given an initial speed of 25 ms on a rough horizontal surface because of friction the block
to the unaided eye the planet jupiter has an angular diameter of 50 arc seconds what will its angular size be when
what is the fundamental minimum uncertainty in a measurement of the position of an electron by speed 290c and
at what speed does a clock move by respect to an observer that measures it to run at one-sixth the rate of an identical
a double convex lens has equal curvature radii of 35 cm an object placed 30 cm from the lens forms a real image at 136
a very long flat conducting strip of width d and negligible thickness lies in a horizontal plane and carries a uniform
a light beam is incident on the interface among two media at an angle of qi 15deg to the normal the light is
you are looking down at the earth from inside a jetliner flying at an altitude of 9700 m the pupil of your eye has a
light shines during a single slit whose width is 46010-4 m a diffraction pattern is formed on a flat screen located 38
holding a glass of water full to a depth of 76 cm you step into an elevator the elevator moves upward by constant
a 660 kg person throws a 00410 kg snowball forward with a ground speed of320 ms a second person with a mass of 600 kg
a spring is first stretched 20 cm from its unstressed length it is then stretched extra 18 cm how does the work needed
a laser beam passes during a slit of width10 cm and is pointed at the moon which is approximately380000 rm km from the
two converging lenses each having a focal length equal to 10 cm are 15cm apart discover the final image location for an
a thermo pane window consists of two glass panes all 032 cm thick with a sealed layer of air of thickness 07 cm among
when a driver brakes an automobile the friction among brake drums and brake shoes converts the carrsquos kinetic energy