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the longest string a thick metal wire on a particular piano is 20 m long and has a tension of 3000 n it vibrates with a
nichrome wire of cross-sectional radius 0754 mm is to be used in winding a heating coil if the coil must carry a
a portion of a soap bubble appears green wavelength 500 nm invacuum when viewed at normal incidence in white light
you have probably never noticed time dilation effects in everyday life do some calculations to see why this isa
a spacecraft moves past a student with a relative velocity of 90 c if the pilot of the spacecraft observes 10 min lapse
a 80 cm diameter solenoid is wound with 2000 turnsm the current through solenoid is given buy i 100 sin120pit what is
the pendulum of a regulator clock consists of a mass of 12kg at the end of a massless wooden stick of length 44mwhat is
in a torus of inner radius 10m and outer radius 15m a toroidal magnetic field of strength 50 tesla is required in the
a coil of 57 turns of wire has diameter has diameter of 95 cm and carries 72 amperesa how large is the magnetic field
the speed of light in a certain medium is 22e108 ms what is the index of refraction of this
spaceship a and spaceship b are racing toward an airless moon at speeds of 015c and 085c respectively they each fire a
in the two-slit experiment monochromatic light of wavelength 600nm passes through a pair of slits separated by 22e10-5
in a diffraction experiment light of 600 nm wavelength produces a first-order maximum 0350 mm from the central maximum
a 50 kg shell is fired vertically upward at its max height of 3500 m it explodes into 3 pieces a 10 kg chunk lands 150
an air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air this puck bumps
a 125 kg flatbottomed boat is floating along at 50 ms headed east sally sue standing at one end of the boat starts to
a coin is located 194 cm to the left of a converging lens f 130 cm a second identical lens is placed to the right of
a sheet of glass has nred 152 and nviolet 155 a narrow beam of white light is incident on the glass at 280 degreeswhat
white light illuminates an oil film on water viewing it directly from above it looks red assume that the reflected red
tests of lung capacity show that adults are able to exhale 15 liters of air through their mouths in as little as 10
how many capillaries the aorta has an inside diameter of approximately 21 cm compared to that of a capillary which is
an artery branches into two smaller identical arteries as shown in the diagram the largest artery has a diameter of 10
a 0500 kg solid mass is totally submerged in water while suspended from a spring balance the density of the material
a transverse periodic wave described by the expression y 5sin x 10t where y and x are in meters and t is in seconds
suppose that a particle of mass 024 kg acted upon by a spring undergoes simple harmonic motion the particle moves back