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you stand on a frictionless platform tha tis rotating with anangular speed of 15 revs your arms are outstretched andyou
at the indianapolis 500 you can measure the speed of carsjust by listening to the difference in pitch of the engine
the tension in a string is 15 n and its linear density is0085 kgm a wave is sent down the string in the x direction
in some places insect zappers with their blue lights are afamiliar sight on summer nights these devices use a high
the temperature of an ideal gas is increased from 110degreescelcius to 360degrees c while the volume and the number of
a flat circular coil with 171 turns a radius of 585e-2 m and aresistance of 0373 omega is exposed to an external
a flat col enclosing an area of 01m2is rotating at 60 revs with its axis of rotationperpendicular to a 020-t magnetic
in a photoelectric effect experiment no current flows unless the wavelength is less than 570nma what is the work
two blocks rest on a horizontal frictionless surface the topblock is 5 kg and the bottom block is 10 kg the
a spring with constant k 40 nm is at the base of africtionless 300 degree-inclined plane a 050-kg block ispressed
a an electron is confined in a box 10 x10-9m in width what is the uncertainty in its speedb a protonis confined in the
two point charges are separated by 6 cm the attractive force between them is 20 n find the force between them when they
the lowest energy possible for a certainparticle in a certain box is 1ev what are the next two higherenergies the
when you touch a friend after walking across a rug on a dry dayyou typically draw a spark of about 201mm calculate the
at 200degc a mainly silicon resistor has a resistance of335 omega and a tungsten resistor has aresistance of 752 omega
a 366-f and a 696-f capacitor are connected in series acrossa 300-v battery a 749-f capacitor is then connected in
which one of the following statements concerning standing soundwaves is falsea for a tube open at one end only standing
in the 1930rsquos acoustic detection systems able to detect anaircraft at a range of 400 km were developed in several
which one of the following statements regarding sound waves is falsea sound intensity level is measured in decibelsb
sound is generated from standing waves in two tubes which are bothopen at both ends and are identical apart from one
a calculate the speed of sound in air at a temperature of 120 degrees c given that the speed of sound in air at a
a violin is tuned by adjusting the tension in the strings onbrianrsquos violin the ldquoardquo string is tuned to
two parallel plates of 10-4 m2 in area aregiven equal and opposite charges of 10-7 c the spacebetween the plates is
at a rock concert the engineer decides that the music isnrsquotloud enough he turns up the amplifiers so that the
a parallel-plate vacuum capacitor has 636 j of energy stored in it the separation betweenthe plates is 220 mm if the