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an incredibly large slingshot is stretched 10 meters to launch a 1280-gram projectile with a speed sufficient to escape
a cubical piece of heat-shield-tile from the space shuttle measures 014 m on a side and has a thermal conductivity of
a 100 kg sphere of radius 100 cm is rolling down a ramp with ramp angle 30 degrees what is the acceleration of the
standing waves on a wire are described by yx tarm sw rm sin kx rm sin omega t with arm sw 250mm omega 976rads and k
a solar collector is placed in direct sunlight where it absorbs energy at the rate of 910 js for each square meter of
a 99kg dog takes a nap in a canoe and wakes up to find the canoe has drifted out onto the lake but now is stationary he
sirius b is a white star that has a surface temperature in kelvins that is four times that of our sun sirius b radiates
an oscillator consists of a block attached to a spring k 4500 nm at some time t the position measured from the systems
the amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 260 js the energy
a satellite consists of a sphere of mass 100 x 103 with two spherical ears on retractable booms the ears each have a
adjacent antinodes of a standing wave on a string are 150cm apart a particle at an antinode oscillates in simple
after 600 kg of water at 792 oc is mixed in a perfect thermos with 300 kg of ice at 00 oc the mixture is allowed to
the speed of an electron is known to be between 30times106ms and 33times106ms estimate the uncertainty in its position
a certain loudspeaker system emits sound isotropically with a frequency of 2270 hz and an intensity of 105 mwm2 at a
a body oscillates with simple harmonic motion according to x 90 m cos30pi radst pi3 rada at t 100 s what is the
a state trooper chases a speeder along a straight stretch of road both vehicles move at 136 kmh the siren on the
an ethernet cable is 415 m long and has a mass of 0195 kg a transverse pulse is produced by plucking one end of the
a tuning fork of unknown frequency makes 5 beats per second with a standard fork of frequency 377 hz the beat frequency
a horizontal block-spring system with the block on a frictionless surface has total mechanical energy e 410 j and a
a violin string 125 cm long and fixed at both ends oscillates in its n 5 mode the speed of waves on the string is 268
a wheel and axle has its matter distributed like a solid disk i1mr2 it has a radius of 060m and a mass of 050kg but a
two antennas radiating 60 mhz radio waves in phase with each other they are located at points s1 at the origin x0 and
male rana catesbeiana bullfrogs are known for their loud mating call the call is emitted not by the frogs mouth but by
a 39times10-24-kg particle is vibrating with simple harmonic motion with a period of 18times10-5 s and a maximum speed
diagnostic ultrasound of frequency 303 mhz is used to examine tumors in soft tissue a what is the wavelength in air of