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a potential difference of 12 v is placed across the ends of a wire of resistance 2625times10-3 ohm if the density of
an air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of and
on a hot summer day the temperature of air in arizona reaches 113degf what is the speed of sound in air at this
an antenna radiates with ux01 for -1ltxlt1 and ux00 for all other x values on the x-axis the frequency f is 60 hz write
the half life for the alpha decay of uranium 238 is 447x109 yrs old determine the age in years of the rock specimen
a toroidal solenoid with mean radius r and cross-sectional area a is wound uniformly with n1 turns a second toroidal
a 25c capacitor is charged to a potential of 18v a how much charge is stored on the capacitor b the potential is then
a car traveling at 30ms overtakes another car only going 25ms when the faster car is still behind the slower car it
a strip of paper is pulled along at 20ms at a right angle to the plane of a 49m long pendulum the pendulum has a small
problem the system pictured below consists of two blocks of mass m connected via springs to two walls the springs all
a sinusoidal voltage v 65 v sin 140t is applied to a series rlc circuit with l 50 mh c 150 f and r 42 a what is the
when an electron undergoes a transition from a higher to lower state in singly ionized helium how will the energy of
gravity fed intravenous infusions are made possible by hanging a bag of fluid above the patient if blood pressure is 18
a spring with spring constant k is initially compressed a distance x from its equilibrium length after returning to its
1 uranium 238 has a half life of 141 x 1017 sec if the earth is 55 billion years old what fraction of the original
a wedge of mass m361 kg is located on a plane that is inclined by an angle 213 degrees with respect to the horizontal a
a proton a neutron and an alfa particle accelerated through the same potential difference enter a region of uniform
in a magnetic field with b050 t for what path radius will an proton circulate at 010 to the speed of light what will
one of our closest stellar neighboursvega is 58 light years awayit has been suggested that tv programs from our planet
a uniform magnetic field is normal to the plane of a circular loop 10 cm in diameter made of copper wire diameter 25 mm
an lc circuit has zero resistance no battery a capacitor c66microfarads and an inductor l07h connected in a simple loop
an unstable atomic nucleus of mass 162x10-26 kg initially at rest disintegrates into three particles one of the
the isotope of lithium used in a hydrogen bomb is li-6 whose nucleus contains 3 protons and 3 neutrons when a li-6
a pendulum bob with mass of 30 kg is suspended from an ideal string a distance of 35 m from the ceiling a 0004 kg
the red shift is evidence of an expanding universe a star like our sun has a peak wavelength of 518 nm if the star