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a massless spring of length b and spring constantk connects two particles of masses m1 andm2 the system rests on a
a uniform 14-kg rod that is 075 m long is suspended at rest from the ceiling by two springs one at each end both
the index of dispersion for flint glass is 1615 for light ofwavelength 700 nm and 1665 for light of wavelength 400nm a
a point source of white light is located 3 meters from the lensin the previous problem on its axis the locations of
a 7900 kg car accelerates from rest at the top of a drivewaythat is sloped at an angle of 167 degrees with the
a weight lifter lifts a set of weights a vertical distance of 156 meters if a constant net force of 379 newtons is
a spring-loaded pellet gun is designed to fire 330 g projectiles horizontally at a speed of479 msa if the spring is
a spring is hung from a ceiling and an object attached to itslower end stretches the spring by a distance of 500 cm
a jet of water squirts out horizontally from a very small hole nearthe bottom of a storage tank if the hole is 150m
a 19 kg box slides 40 m down the frictionless ramp shownin the figure then collides with a spring whose spring
a golf ball strikes a smooth hard floor at an angle of 30 degreesto the normal and rebounds at the same angle the mass
in an experiment of specific heat there are mixed 196 g of aluminumat 107degc with 523 g of water at 186 degca
an interstate highway has been built through a poor neighborhood ina city in the afternoon the sound level in a rented
a 22 kg brick is completely submerged insaltwater and displaces an amount of saltwater weighing 117 n determine the
two cars aampb are 400 meters apart car a travels due east at 30 meters per second on a collision course w car b which
a police car is traveling east at 400 ms along a straight roadovertaking a car ahead of it moving east at 300 ms the
the siren of a police car atrest emits a predominant frequency of 1600 hz and the police car isovertaking you from the
concrete has a specific heat capacity of 670 jouleskg-degreescelsius a 2kg concrete block that has a temperature of 20
a tuning fork produces a steady400 hz tone when this tuning fork is struck and held near avibrating guitar string 20
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