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a person travels in a car with a speed of 90 ms to get the drivers attention a stationary police officer behind the car
a proton has an initial speed of 36105 msa what potential dissimilarity is required to decrease the initial speed of
electron interference patterns are made with shooting electrons with 50 kev of kinetic energy during two slits spaced
a 15m long stick with a mass of 03 kg is pivoted on a hinge at one end and held horizontally with a spring by spring
a microscope has an objective lens of focal length 600 mm the objective forms an image165 cm from the lens the focal
a 29 kg block is pulled across a horizontal surface with a rope the block has an acceleration of 33 ms2 and the
one can make a ldquodry ice bombrdquo by dropping a chip of dry ice solid co2 into a plastic 2-liter bottle of warm
a bubble f gas with a volume of 120 is released under water as it rises to the surface the temperature of the bubble
a proton enters a uniform electric field by an initial velocity of 6x105 ms in the x direction the field has strength
two resistors with values of 21 omega sign and 20 omega sign respectively are linked in series and hooks to a 12 v
a mu moun moving by us at 060c is observed to decay into an electron and two neutrinos the electron is given off in the
a converging lens has a focal length on both sides of 20 cm an object is placed to the left of the lens at 60 cm the
a very long 10-mm-diameter wire carries a35 a current from left to right thin plastic insulation on the wire is
a particle with a charge of -85muc is traveling east with a speed of 45 ms in a region by a magnetic field of 030t if
a power plant taps steam superheated with geothermal energy to 540 k the temperature of the hot reservoir and utilizes
two lenses of focal lengths 24 cm and 320 cm are used to build a small telescope assuming that 24 cm is the focal
a lunch tray is being held in one hand as the figure illustrates the mass of the tray itself is 0167 kg and its center
a hiker who weighs 670 n is strolling during the woods and crosses a small horizontal bridge the bridge is uniform
a hypodermic syringe has a plunger area 25 cm2 and a 50 x10-3 needlea if a small obstruction is at the end of the
a running student has half the kinetic energy that his younger brother has the student speeds up by 13 ms at which
planetary model of hydrogen atom has an electron in a circular orbit about a proton the motion of the electron of
through an adiabatic process the temperature of 362 rm mol of a monatomic ideal gas drops from 480rm circ c to 240rm
a large negatively charged object is placed on an insulated table a neutral metallic ball rolls straight toward the
the front brake pads on your car wear out faster than the rear brake pads in fact some cars are specially designed with
a 02 kg mass is attached to two springs by identical spring constants of 90 nm and moves on a horizontal frictionless