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an electron and a proton are moving at the similar speed in circular paths in the similar uniform magnetic field the radius of the path of the
a high voltage applied to a gas discharge tube having neon gas at very low pressure causes a current to flow through the tube which particles
a zinc plate is attached to the knob of a negatively charged electroscope what will occur to the leaves of the electroscope when ultraviolet
an 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 newtons per meter if the
a baseball bat strikes a ball with a force of 30 newtons if the ball was in contact with the bat for 110 of a secondwhat impulse did the ball
a ball is thrown vertically upwards from the ground with a speed of 80 feetsecond in the english system of units determine the magnitude and
a man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floorif the frictional force is 80 newtonswhat is the
a pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the left of vertical which of
a block of wood initially at rest slides down an inclined planeneglecting friction the kinetic energy of the block at the bottom of the plane isa
refracting telescopes if uncorrected suffer from chromatic aberration chromatic aberration occurs becausea red light is focused more strongly
in the compton effect a photon of wavelength l collides with a stationary electron the wavelength of the emitted photon isa longer than
a hollow metallic sphere has an inner radius a and an outer radius b if charge is placed on the inner surface that is at radius a where is the
when a liquid moves by a pipe having a varying diameter the pressure against the inside walls of the pipe will bea the same throughoutb
a train locomotive whose mass is 1 x 106 kilograms is travelling east at a speed of 100 kilometers per hour a northerly wind is applying a force
a beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen which color of light that
as the temperature of the air enhances from 0 degrees c to 20 degrees c the wavelength of a sound made by a tuning fork of fixed frequency does which
when a person stands on a scale in an elevator at rest the scale reads 800 newtonswhen the elevator is allowed to fall freely with acceleration of
two bodies are moving in circular paths of equivalent radii if the speed of the first body is twice that of the second the centripetal
a satellite of mass m is in orbit around the earthif a second satellite of mass 2m is to be placed in the similar orbit the second satellite must
a girl throws a 01 kilogram ball at a wall the ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight
a car is moving along a straight horizontal road at a speed of 20 meters per second the brakes are applied and a constant force of 5000 newtons
an x-ray photon collides with a free electron and the photon is scattered during this collision there is conservation ofa momentum but not
the greatest induced emf will happen in a straight wire moving at constant speed by a uniform magnetic fieldwhen the angle among the direction of the
as a longitudinal wave moves through a medium the particles of the mediuma vibrate in a path parallel to the path of the waveb vibrate in a path
a 10 kilogram mass rests on a horizontal frictionless surface a horizontal force of 5 newtons is applied to the mass after the force has been