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when a single person shouts at a football game the loudness of sound at the center of the field is 55 db than all the
a playground carousel is free to rotate regarding its center on frictionless bearings and air resistance is negligible
a gaussian surface in the shape of a right circular cylinder by end caps has a radius of 137 cm and a length of 105 cm
the induced magnetic field at radial distance 67 mm from the central axis of a circular parallel-plate capacitor 20
at what rate should the potential difference among the plates of a parallel-plate capacitor with a 22 muf capacitance
red light n1520 and violet light n1538 traveling in air are incident on a slab of crown glass both colors enter the
at a distance of 25m from an isotropic 100 mhz radio source the intensity is 120wm2a what is the rms electric field at
point a is the midpoint of one of the sides of a square on the side opposite this spot two in-phase loudspeakers are
several bacteria are propelled by motors that spin hair-like flagella a characteristic bacterial motor turning at a
an airplane is in level flight over antarctica where the magnetic field of the earth is mainly directed upward away
a typical neutron star might have a mass equal to that of the sun however a radius of only 100 kma what is the
a drop of water on a countertop reflects light from a flower held 36cm directly above it the flowers diameter is 22cm
a battery charger is associated to a dead battery and delivers a current of 51 a for 61 hours keeping the voltage
when a 20 v emf is placed across two resistors in series a current of 20a is present in all of the resistors when the
two narrow parallel slits separated by 085 mm are illuminated by 600 nm light and the viewing screen is 28 m away from
a convex mirror has a focal length of -24cm discover the magnification produced by the mirror when the object distance
the near point of a naked eye is 30 cm when an object is placed at the near point and viewed by the naked eye it has an
1 what will an object weigh on the moons surface if it weighs 100 n on the earths surface2 compute go on the moon from
1 how many rulings should a 40cm wide diffraction grating have to resolve the wavelengths 415496 nm and 415487 nm in
a complex ion ml62 is green in solution if the same metal forms a complex with another ligand q that creates a stronger
while a 200 l flask containing 0340 atm of gas a is joined with a 400 l flask containing 0820 atm of gas b as wellthe
while a 100 l flask containing 0500 atm of gas a is joined with a 200 l flask containing 0850 atm of gas b as well the
a 20 ml volume of previously boiled deionized water is added to the erlenmeyer flask to prepare the sample for
the ammonia gas is produced by reacting hydrogen gas with nitrogen gas how to produce 856 g of ammonia gas using air as
a student wrongly added 12 m hcl to a sample of unknown instead of 6 m hcl at first a large amount of light color