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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
an organ pipe which is open at both ends resonates at its fundamental frequency neglecting any end effects what wavelength is formed by this pipe
davisson and germer scattered electrons from a crystal of nickelthe scattered electrons formed a strong diffraction patternwhat significant
a copper rod which is 1 centimetre in diameter carries a current of 5 amps the current is distributed uniformly over the rod the magnetic field
a charged particle is moving in a uniform magnetic field if the direction of motion of the charged particle is parallel to the magnetic field
a circuit which employs a direct current source has a branch which has a capacitor after the circuit has reached a steady state what is the
five coulombs of charge are placed on a thin-walled conducting shellonce the charge has come to rest the electric potential in the hollow conducting
five volts are applied across the plates of a parallel plate capacitorthe distance of separation of the plates is 02 meterswhat is the magnitude of
the potential difference across a 4 ohm resistor is 20 volts suppose that all of the energy dissipated by this resistor is in the form of heat how
a helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground at the immediate the helicopter is 60
a 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at
a certain machine exerts a force of 200 newton on a box whose masses 30 kilograms the machine moves the box a distance of 20 meters with a
a boy is standing on an elevator which is travelling downward with constant velocity of 30 meters per second the boy throws a ball vertically
start from the expression of the electric field outside an infinite sheet of uniform surface charge density e s2epsilon derive the electric field
when are intermolecular forces the strongestintermolecular forces dipole-dipole dispersion and hydrogen bonds these forces are weaker than chemical
what is the cause of brownian motionmolecules in a gas move constantly freely randomly in all directions and at high speeds they are able to do so
how do you separate hydrogen and oxygen gases in industrial electrolysis of water processin electrolysis oxygen and hydrogen gas are formed at
what is the universal law of universal gravitationstatement that any particle of matter in the universe attracts any other with a force varying
what is centrifugal forcecentrifugal force is the force that is equivalent in magnitude but opposite in direction to the centripetal force which is
what is the difference among dynamic strain aging and strain agingstrain aging could be explained as tear and normal wear or the fatigue that is