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what is the repulsive force among two pith balls that are 120 cm apart and have equal charges of -260
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
a point charge q 500 microc is located at the center of a cube of side l 0200 m in addition six other identical point
a photon of energy e interacts with an electron at rest and undergoes pair production producing a positive electron
discover how much energy per unit time a roller bladder loses by radiation from her body her skin temperature is 35degc
the temperature of skin varies from 30degc to 35degc depend- ing on the blood flow near the skin surface what is the
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
a sphere encloses a total of 1 uc of charge1 what is the electric flux during the surface of sphere2 what would be the
an electromagnetic wave of intensity 240 wm2 is incident normally on a rectangular card with sides of 19 cm and 31 cm
a an electromagnetic wave of intensity 210 wm2 is incident normally on a rectangular black card with sides of 25 cm and
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
consider the oort clound to consist of a large number of comets at a distance from the sun where the period of a
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
when standing a certain distance from a jet on the ground on which all three engines are running at equal power the
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