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the vibrations from an 720 hz tuning fork set up standing waves in a string clamped at both ends the wave speed in the
an organ pipe is 107 cm long what is the third audible harmonic if the pipe is closed at one end the speed ofsound in
a wire of mass 0030 kg is stretched between fixed supports a distance 110 m apart if the tension in the wire is 790 n
a starship moving toward earth with a speedof 077 claunches a shuttle craft in the forward directionthe shuttle which
the side of a hollow cubical box is 04 m the box floats in ariver with one fourth of its height beneath the surface
a duck is floating on a lake with 17 of its volume beneath thewater what is the average density of the
a small ball rolls horizontally off the edge of a tabletop that is 115 m high it strikes the floor at a point 186 m
a 0500kg mass oscillates in simple harmonic motion at the endof a spring of constant 150nm the total energy of the
a 2kg cube of aluminum is suspended by a rope tied to aballoon which is floating on a fluid of density 15x103kgm3
a record was set for stair climbing when a man ran upthe 1600 steps of the empire state building in 10 minutes and
assume that theprotons in a hot ball of protons each have a kinetic energy equalto kt where k is the boltzmannconstant
a sinusoidal transverse wave is traveling along astring in the negative direction of an x-axis the figure shows aplot
a 0250-kg toy is undergoing shm on theend of a horizontal spring with force constant k 200 nm when the object is 0012 m
the speed of sound in air at 20degc is 344 msa what is the wavelength of a sound wave witha frequency of 1568 hz
a 44-kg girl is bouncing on a trampoline during a certain interval after leaving the surface of the trampoline her
a satellite is in a circular orbit about the earth m 598 x1024 kg the period of the satellite is 978 x104 s what is
a person in a kayak starts paddling and it accelerates from 0 to 0659 ms in a distance of 0443 m if the combined mass
an unknown particle in an accelerator moving at a speed of 20 x108 ms has a measured relativistic mass of 300kg what
a light beam traveling through air enters a slab with n 250 at a 45ordm angle with respect to the normal then exits the
a motorcycle and a police car are moving toward one another the police car emits sound with a frequency of 502 hz and
a 16-kg cylinder radius 012m length 05m is releasedfrin rest at the top of a ramp and allowed to roll with
a 9 volt battery contains a total of 178 coulombs when thebattery is connected in a circuit the positive and
a copper rod has a length of 13 m and a cross-sectional area of47 x 10-4 m2 one end of the rod is incontact with
a 10 cm x 10 cm x 10 cm block of steel density of steel 7900 kgm3 is suspended from a spring scale the scaleis in
a 550 kg diver fallsfreely from a diving platform that is 300 m above the surface of the water in apool when she is