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a wire is 25 m long after applying a force to one end of thewire it is now 2506 m long calculate the tensile strain in
a magnetic-field technique for stabilizing a he-ne laser to 2parts in 1010has been patented at 6328 nm what would be
a camera lens with index of refraction greater than 134 is coated with a thin transparent film of index of refraction
the radioactive isotope ti-204 decays to pb-204 by emitting an electron the electron may have a kinetic energy of up to
considering wieners experiment fig 714 in monochromaticlight of wavelength 550nm if the film plane is angled at
when the temperature of a coin is raised by 75 cdeg the coins diameter increases by200 10-5 m if the original diameter
two speakers on stands 10 m apart are aimed directly at each other they are emitting a pure tone at 440 hz alice stands
a 1110-kg van stopped at a traffic light is hit directly inthe rear by a 725-kg car traveling with a velocity of 297
if a negative charge is initially at rest in an electric field will it move toward a region of higher potential or
a satellite is in a circular orbit around an unknown planetthe satellite has a speed of 198 x 104 ms and theradius of
a car of 1200 kg travels east at 24 ms while a truck of 2200 kg travels north at 19 ms they collide and stick together
a spherical balloon is made from a material whose mass is 300kg the thickness of the material is negligible compared to
at the start of a trip a driver adjusts the absolute pressurein her tires to be 283 x 105 pa when the outdoor
with its wheels locked a van slides down a hill inclined at 360 to the horizontal-find the acceleration of this van if
a ladder is leaning on a frictinoless wall a painter climbsup 70 of the ladder the painter weights is 55 kg and the
physicians use a high-frequency f 1-5 mhz sound wavescalled ultrasound to image internal organs the speed ofthese
a box of bananas weighing 450 n rests on a horizontal shysurface the coefficient of static friction between the box and
the coefficients of static and kinetic friction between a 522 n crate and the warehouse floor are 0715 and 0420
a sealed cubical container 120 cm ona side contains three times avogadros number of molecules at atemperature of
a rectangular air mattress is 22m long 057 m wide and 007 m thick if it has a mass of 20 kg what additional mass can it
project seafarer was an ambitious program to construct anenormous antenna buried underground on a site about 10000km2
an internal explosion breaks an object initially at restinto two pieces one of which has 15 times the mass of theother
a person stands on a scale inside an elevator at rest thescale reads 800na what is the persons massb the elevator
a motorcycle and rider have a total mass equal to 300kg therider applies the brakes causing the motorcycle to
the speed of sound in human tissue is on the order of 1500 ms a 350-mhz probe is used for an ultrasonic procedure a if