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a comet orbits the sun in a strongly elliptical orbit the comet and star are far apart from other massive objects if
a narrow beam of white light is incident at 30circ on a 100 cm-thick piece of glass the rainbow of dispersed colors
a trunk of mass m 1100 kg is pushed a distance d 320 cm up an incline with an angle of inclination theta 260 deg by
a monochromatic point source of light emits 55 w of electromagnetic power uniformly in all directions find the
a 23 kg child goes down a straight slide inclined 38 above horizontal the child is acted on by his weight the normal
tarzan swings on a 340-m-long vine initially inclined at an angle of 370deg with the verticala what is his speed at the
show that the uncertainty principle can be expressed in the form deltal deltatheta is greater or equals to h2 where
a daredevil on a motorcycle leaves the end of a ramp with a speed of 330 ms as in the figure below if his speed is 308
why is it that a grow-lamp tube has an apparent color temperature of 5500 k and is cool to the touch however the much
an object travels halfway around a circle at a constant instantaneous speed v what is the magnitude of its average
why is the spectrum from a black body source continuous while a spectrum for a gas discharge source of the same
a tennis ball of mass m 600 g and speed v 250 ms strikes a wall at a 45ordm angle and rebounds with the same speed at
please explain with calculationswhat is the a ldquocurrentrdquo due to the electron orbiting in a circular path about
discuss what it was about about blackbody radiation that classical physics was unable to explain how did plancks theory
an emf source with a magnitude of 120 a resistor with a resistance of 910 and a capacitor with a capacitance of
consider a heavy particle of mass m is place at the top on the outside side not inside of a vertical hoop of radius r
7125 steam enters an adiabatic turbine at 7 mpa 600 degrees c and 80 ms and leaves at 50 kpa 150 degrees c and 140 ms
compare the boltzmann distribution the bose-einstein distribution and the fermi-dirac distributionestimate e - microkt
a copper bar is moved to the right while its axis is maintained in a direction that is perpendicular to a magnetic
the sound level measured 52 m away from a jet engine is 140 dba what is the intensity of the sound at 52 mb what is the
in mid-nineteenth century england horses were often used to pull barges along canals the horse naturally trudged along
a convex spherical mirror whose focal length has a magnitude of188cm is to form an image112cm behind the mirrora where
a 684-kg skier coasts up a snow-covered hill that makes an angle of 255 deg with the horizontal the initial speed of
a cyclotron designed to accelerate protons has a magnetic field of magnitude0260t over a region of radius 240ma what is
002 100 points a plane designed for vertical takeoff has a mass of 71 times 103 kg find the net work done on the plane