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the area of a typical eardrum is about 50 times 105 m2 a calculate the sound power the energy per second incident on an
a 0422 kg mass attached to a 0303 -m long light string oscillates with an amplitude of 696 deg what is the maximum
a copper ball with a diameter of 500 cm is subjected to a pressure of 250 times 106 pa the bulk modulus for copper is
adjacent antinodes of a standing wave on a string are 150cm apart a particle at an antinode oscillates in simple
the mass of an empty 634 -gallon container is 240 kg the mass of the same container filled with unknown fluid is 170 kg
a 200 kg mass is connected to a spring with a spring constant of 600 nm the displacement is given by the expression xt
a bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the
75 mol of helium are in a 15 l cylinder the pressure gauge on the cylinder reads 68 psi what area the temperature of
a 08 kg object that stretches a spring 73 cm from its natural length when hanging at rest oscillates with an amplitude
a thin film of acetone n 125 coats a thick glass plate n150 white light is incident normal to the film in the
a diffraction grating is made up of slits of width 300 nm with separation 1150 nm the grating is illuminated by
a 2kohm resistor and 400mh inductor are connected in series to a 1300hz generator with an rms voltage of 15va what is
one particle has a mass of 200 10-3 kg and a charge of 9 microc a second particle has a mass of 500 10-3 kg and the
a day on a distant planet observed orbiting a nearby star is 419 hours also a year on the planet lasts 489 earth days
a spotlight on a boat is y 27 m above the water and the light strikes the water at a point that is x 94 m
give the systematic names for the formulas or the formulas for the names type your answer using the format copperii
two 70kg bowling balls each with a radius of 017m are in contact with one another what is the gravitational attraction
a nucleus of oxygen-15 undergoes electron capture write out the reaction equation and determine the identity of the
benzene has heat of vaporaization 31 kjmol and at 25 c has vapor pressure of 108 mm hg the normal boiling point of
unpolarized light passes through two polaroid sheets the transmission axis of the analyzer makes an angle of 402deg
a mass-spring system oscillates with an amplitude of 520 cm if the spring constant is 247 nm and the mass is 535 g
common brass is a copper and zinc alloy containing 370 zinc by mass and having a density of 848 gcm3 a fitting composed
a helium-neon laser 6328 nm is used to calibrate a diffraction grating if the first-order maximum occurs at 200deg
a liquid is in equlibrium with its vapor if a small amount of the vapor escapes what is the largest immediate resulta-
light of wavelength 570 x102 nm passes through a slit of width 0220 mma find the width of the central maximum on a