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one method for measuring the speed of sound uses standing waves a cylindrical tube is open at both ends and one end
an underwater diver sees the sun 50 degrees above horizontal how high is the sun above the horizon to a fisherman in a
water flows at 059 ms through a pipe15 cm in diameter when the pressure is160000 pa the pipe the goes up10 m before
in the figure four long straight wires are perpendicular to the page and their cross sections form a square of edge
a cylinder of mass m1 6kg and radius r 4 m is spinning about anaxis through its center at 7 radsec a flat bar with a
a wing produces lift by diverting the flow of air producing higherpressure below the wind and lower pressure above the
a proton moving eastward with a velocity of 50 x 103ms enters a magnetic field of 20 t pointingnorthward what is the
a 22-kg cylinder radius 010 m length 050 m is released from rest at thetop of a ramp and allowed to roll without
a student starting from rest slides down a water slide on theway down a kinetic frictional force a nonconservativeforce
a child slides down a snow covered slope that makes an angle of 20 degrees with the horizontal if the coefficient of
a train increases its speed from 45 to 90 kmh find the speed i at half time ii at half way assuming the acceleration to
a cylinder with circular ends and a hemisphere are solidthroughout and made from the same material they are resting on
on a frictionless horizontal air table puck a with mass0250 kg is moving toward puck b with mass 0330 kgwhich is
an ideal gas is kept in a container of constant volume thepressure of the gas is also kept constant the number of
triangular loop of wire in drawing carries a current of 628 aangle w is 55 degrees length ab is 23 m length ac is 328
a parallel plate capacitor of capacitance c0 has plateof area a with separation d between them when it isconnected to a
the wavelength of light visible to the human eye is on the order of 6 times 10-7 m find the frequency of the lightwave
in some places insect zappers with their blue lights are afamiliar sight on a summers night these devices use a
because of dissipative forces the amplitude of an oscillator decrease 5 in 10 cycles how many cycles does it take for
a constant volume gas thermometer is used to measure thetemperature of an object when the thermometer is in contactwith
wire is often delivered wrapped on a large cylindrical spool suppose such a spool is supported by resting on a
find the minimum photon energy necessary to produce aelectron- antielectron pairwhat would be the frequency
tank forms a hemisphere with radius r its full of water at thebeginning it a small aperture with surface a at the
an empty spherical weather balloon with a mass of 5 kg has a radiusof 2879 m when fully inflated with helium it is
asquare loop of wire surrounds a solenoid the side of the square is01 m while the radius of the solenoid is 0025 m the