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a diesel engine performs 2090 j of mechanical work and discards 4125 j of heat each cyclea how much heat must be
write down the wave function for the ground state of an electron in a hydrogen atom in spherical coordinates what are n
a concave cosmetic mirror has a focal length of 24 cm a 50 cm -long mascara brush is held upright 12 cm from the
a large aquarium of height 598 m is filled with fresh water to a depth of d 240 m one wall of the aquarium consists of
a radio tuner is built by connecting an l041mh inductor and variable capacitor in series with an antenna the driving
a coil has resistance r14ohms and inductance l3millihenries and is powered by a generator with variable frequency and
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