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a 160-lb gymnast is executing a series of full-circle swings on the horizontal bar he has a small and negligible
the temperature coefficient of resistivity for the metal gold is00034 cdegminus1 and for tungsten it is 00045cdegminus1
1 a radioactive phosphorus nucleus by atomic number 15 and mass number 32 beta decays by emitting an electron and an
what is the regular pressure on the soles of the feet of a standing807-kg person due to the contact force with the
a solid sphere of mass 0599 kg rolls without slipping along a horizontal surface by a translational speed of 544 ms it
a cylindrical copper cable carries a current of 1330 a there is a potential dissimilarity of160 10-2 v among two points
an iron anchor of density 7870 kgm3 appears 200 n lighter in water than in air1 what is the volume of the anchor2 how
two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a
an oscillating block-spring system has a mechanical energy of 1j amplitude of 10 cm and a maximum speed of 120 ms
in fig 15-34 2 blocks m 18 kg and m 10 kg and a spring k 200 nm are arranged on a horizontal frictionless surface
a spring k 200 nm is suspended by its upper end supported from a ceiling with the spring hanging in its equilibrium
a vacuum cleaner is plugged into a 1200 v socket and utilizes 30 a of current in normal operation when the back emf
a generator utilizes a coil that has 160turns and a 065 t magnetic field the frequency of this generator is 600 hz and
a particle is confined to the one-dimensional infinite potential well of fig 39-2 if the particle is in its ground
a 20-kg object moving by a velocity of 50 ms in the positive x direction strikes and sticks to a30-kg object moving by
assume you wish to make a solenoid whose self-inductance is28 mh the inductor is to have across-sectional area of
a slide projector has a converging lens whose focal length is10300 mm1 how far from the lens should the screen be
a pulsed laser emits light in a series of short pulses each having duration of 246 ms the wavelength of the light is
a flight attendant wants to change the temperature of the air in the cabin from 180deg c to 240deg c without changing
a woman walks 285 m in the direction 29deg east of north then 195 m directly easta find the magnitudeb find the
the owner of a van installs a rear-window lens that has a focal length of -0295 m when the owner looks out during the
a brick is initially 772 cm high and an aluminum can is initially 773 cm high by how much should their temperatures be
a disk of mass m and radius r spins on a horizontal axis during its center particle mass m is on the rim at the top
a proton is located at a distance of 0435 m from a point charge of 846 muc the repulsive electric force moves the
two identical lead spheres are hung on thin threads in a vacuumnbsp the temperature of one is 320 k and it radiates 60