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three identical charges q form an equilateral triangle of side a with two charges on the x axis and one on the positive
you are using a lens to create real image on a screen you then slide the screen therefore that it is farther from the
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a photon of energy e interacts with an electron at rest and undergoes pair production producing a positive electron
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presume the electric potential is gauged along a path or surface and that potential is approximately constant at all
an electromagnetic wave of intensity 180 wm2 is incident normally on a rectangular card with sides of 20 cm and 32 cm
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an electromagnetic wave of intensity 240 wm2 is incident normally on a rectangular card with sides of 19 cm and 31 cm
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experiment the equation of motion for pendulums1 what are the most significant sources of experimental uncertainty be
a boy sits in a window of his house five meters above the ground he wants to throw a ball to his friend on the lawn
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in the nineteenth century astronomers believed that the sun was slowly shrinking and that the compression of its
for the motion diagram given figure 1 sketch the shape of the corresponding motion graphs in parts a to d utilize the
two identical spring and mass oscillators are set in motion in perpendicular directions the masses are each 40 kg and
in a region of space the electric field varies according to e 006 nc sin 2100t where t is in seconds discover the
two small plastic spheres are given positive electrical charges when they are a distance of 160cm apart the force among
mission control sends a brief wake-up call to astronauts in a far away spaceship 68 seconds after the call is sent
anatomy questionplease answer either skeletal cardiac or smooth muscle tissue for each problem1 voluntary muscle
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a 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 193ms a 10-kg stone is
the cost of electricity varies widely throughout the united states 0120kwh is a typical value at this unit price
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