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a circus performer stretches a tightrope between two towers he strikes one end of the rope and sends a wave along it
initially a wheel rotating about a fixed axis at a constant angular deceleration of 09 rads2 has an angular velocity of
tension is maintained in a string as in the figure below the observed wave speed is 22 ms when the suspended mass is 30
estimate the average force exerted by a shot-putter on a 74 kg shot if the shot is moved through a distance of 25m and
one particle of mass m moves with a speed v in the x-direction and another particle of mass 2m moves with a speed v2 in
a simple pendulum makes 137 complete oscillations in 320 min at a location where g 980 ms2a find the period of the
a wheel has a rotational velocity of 20middotrads clockwise you place you hand against the wheel and the friction
a positively charged particle moves in the positive z-direction the magnetic force on the particle is in the positive
a 1800middotkg car traveling with a velocity of 15middotms north collides head-on with a 3600middotkg truck traveling
an optometrist has a choice to give a pacient either regular glasses or contact lenses to correct nearsightedness
a 20middotkg fish swimming 1middotms swallows a smaller 10middotkg fish swimming toward it at a speed that brings both
in a single slit diffraction patterna all maxima have the same widthb the central maximum is twice as wide as the side
jerry is 57 kg and when he stands on a bathroom scale the spring inside the scale compresses 041 mma if jerry jumps on
an astronomical telescope hasa unlimited magnificationb two lenses of the same focal lengthc an objective of relatively
a 44 kg block is pushed 66 m up a rough 35deg inclined plane by a horizontal force of 74 n if the initial speed of the
a playground merry-go-round has a radius of 420 and a moment of inertia of 255 and turns with negligible friction about
a horizontal pipe narrows from a radius of 250 m to 100m if the speed of the water in the pipe is 100 ms in the
a container has a large cylindrical lower part with a long thin cylindrical neck the lower part of the container holds
the hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm what angular separation between two spectral
light from an argon laser strikes a diffraction grating that has 5365 grooves per centimeter the central and
a pair of slits separated by 0160 mm is illuminated by light having a wavelength of 554 nm an interference pattern is
a rocket is fired in deep space where gravity is negligible in the first second it ejects 1160 of its mass as exhaust
a block of mass undergoes a one-dimensional elastic collision with a block of mass initially at rest if both blocks
two slits separated by 00530 mm and located 110 m from a viewing screen are illuminated with monochromatic light the
a beam of light of wavelength 482 nm passes through two closely spaced glass plates as shown in the figure below for