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u235 92 protons143 neutrons absorbs a neutron and fissionsin to krypton 36 protons56 neutrons and barium 56
an axon is the relativelylong tail-like part of a neuron or nerve cell theoutersurface of theaxon membrane dielectric
a college student produces about 127 kcal of heat per hour onthe average what is the rate of energy production
one 20-year-old twin brother takes a space trip with a speed of080c for 30 years according to a clock on the spaceship
there is evidence that elephants communicate via infrasoundgenerating rumbling vocalizations as low as 14 hz that can
indicate the direction of the electric field between the plates of the parallel plate capacitor shown in the drawing if
a uniform cylinder of radius 10 cm and mass 13 kg is mounted so asto rotate freely about a horizontal axis that is
the drawing shows a copper wire negligible resistance bentinto a circular shape with a radius of 048 m the radial
in the figure two particles each with mass m 082 kgare fastened to each other and to a rotation axis at oby two thin
a mirror produces an image that is located 4800 cm behind the mirror when the object is located2400 cm in front of the
there are four charges each with a magnitude of 20muc two are positive and two are negative the charges are fixed to
a farsighted person has a near point of 61 cm rather than the normal 25 cm what strengthlens in diopters should be
concept simulation 71 illustrates the physicsprinciples in this problem an astronaut in his space suit and witha
while in europe a tourist hears on the radio that the temperature that day will reach a high of 18 c what is this
when a trains velocity is 120 rm ms eastward raindrops that are falling vertically with respect to the earth make
an elevator has a mass of 1170kg and carries a maximum load of 786 kg a constant frictional force of 4260 n retards its
a at six flags over georgia near atlanta the weellie cariespassengers in a circular path with a radius of 77m the ride
when b-10 is bombarded by neutrons a neutron can be absorbedand an alpha particle emitted if the b-10 target
a uranium atom is ionized seven times losing seven electrons inthe process its resulting mass is 390times10minus25
in an experiment designed to measurethe speed of light a laser is aimed at a mirror that is 470 kmdue north a detector
an alpha particleq 320times10minus19 c moves at avelocity of 245times104 ms inthe positive x direction through a
an electrically charged bullet of mass 0010 kg leaves thebarrel of a gun traveling parallel to the ground and
a spherical mirror is polished on both sides when you use aconvex mirror the magnification is 16 what is the
a man and a boy carry a canoe 575 m longand weighing 373 n the canoe is heldoverhead in a horizontal position the boy
a long straight conducting rod or wire carries a linearcharge density lambda of20mucm this rod istotally enclosed