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transverse waves a traveling on a 150 meter long piano string at 600 ms if the points of zero vibration occur at
bats can detect small objects such as insects that are of a size on the order of a wavelength if bats emit a chirp at a
a 20 cm times 20 cm times 20 cm box contains 0038 mol of nitrogen at 27degreec find the rate of collisions on one wall
a slide projector desires to create a 98 centimeter high image of a 2 centimeter tall slide the screen is 300
during the spin-dry cycle of a washing machine the motor slows from 95 rads to 30 rads while the turning the drum
a racing bike travels 141 meter along a circular track of radius 15 meter find the angular displacement of the racing
a 12 kilogram object moving with a speed of 8ms collides perpendicularly with wall and emerges with a speed of 6ms in
a wheel starts from rest and rotates with a fix angular acceleration about a fixed axis it completes the first
because gasoline is less dense than water drums containing gasoline will float in water assume a 210-l steel drum is
a laser beam enters a 180 centimeter thick glass window at an angle of 38 degree from the normal the index of
a 3kilogram mass sliding on frictionless surface has a velocity of 5ms east when it undergoes a one-dimensional
a major league pitchers can throw a ball in excess of 395 ms if a ball is thrown horizontally at this speed find how
a metal wire 75 centimeter long and 0130 centimeter in diameter stretches 00350 centimeter when a load of 8 kilogram is
a thin film of polystyrene of refractive index 149 is used as anon reflecting coating for fabulite strontium titanate
a pipe which has a cross sectional area a is bent at a 90 deg angle liquid with density rho is flowing along this pipe
in a rutherford scattering experiment a target nucleus has a diameter of 126e-14 m the incoming alpha particle has a
a 750 kg rider sitting on a 76 kg bike is riding along at 87 ms in the positive direction the rider drags a foot on the
unpolarized light is incident on a stack of two polarizing sheets at what angle should the transmission axes of all
the last stage of a rocket is traveling at speed of 7800 ms this last stage is made up of two parts that are clamped
unpolarized light falls on a stack of three polarized sheets the transmission axes of the top and bottom sheets are at
a particle by a charge of -600 nc is placed at the center of anon conducting spherical shell of inner radius 200 cm and
12 electrons are equally spaced and fixed around circle of radius 05 cma relative to v 0 at infinity what are the
a dentist uses a mirror to examine a tooth that is 125 cm in front of the mirror the image of the tooth is formed 100
a 300 m long string sustains a three-loop standing wave pattern as shown the wave speed is 100 102 ms1 what is the
a speaker generates a continuous tone of 440 hz in the drawing sound travels into a tube that splits into two segments