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a gamma ray disappears in the process of creating an electron-positron pair if the kinetic energies of the electron and
just as you are about to step into a nice hot bath a small earthquake rattles your bathroom immediately afterward you
when you hit a baseball with a bat the bat flexes and then vibrates we can model this vibration as a transverse
a neutral atom has electrons completely filling the shells with principal quantum number n 1 2 and 3 this atom
a spherical metallic christmas tree ornament has a diameter of 620 cm if saint nicholas is by the fireplace 141 m away
estimate the resolution of the human eye limited by diffraction find the minimum resolvable separation between two
in a youngs double-slit experiment with electromagnetic radiation that is not necessarily visible the 1st fringe
a 7 g bullet moving horizontally at 200 ms passes through a 150 g tin can sitting on a post just after impact the can
a 206kg rock sits in full sunlight on the edge of a cliff 5m high the temperature of the rock is 302 degrees celcius if
the record of 2031 kmh for speed skiing set by franz weber at velocity peak in colorado was achieved in a mountain
sources a and b emit long-range radio waves of wavelength 330 m with the phase of the emission from a ahead of that
the 20 cm diameter coil shown below has 25 turns and has a current flowing through it of 500 a the magnetic field
what is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 530nm
two slits separated by a distance of d 013mm are located at a distance of d 710mm from a screen the screen is
a tall tree is growing across a river from you you would like to know the distance between yourself and the treeas well
during a test a nato surveillance radar system operating at 12 ghz at 155 kw of power attempts to detect an incoming
a diathermy machine used in physiotherapy generates electromagnetic radiation that gives the effect of deep heat when
a transformer is to be used to provide power for a computer disk drive that needs 64 v rms instead of the 120 v rms
an ac power generator produces 54 a rms at 3600 v the voltage is stepped up to 100000 v by an ideal transformer and the
a step-down transformer is used for recharging the batteries of portable devices the turns ratio n2n1 for a particular
a sinusoidal voltage v 75 v sin 100t is applied to a series rlc circuit with l 50 mh c 160 f and r 34 please i
there are two parallel straight wires with the length of 40 cm long and they are separated by 5 cm the current on the
you want to create a spherical mirror with a focal length of 150 cma will the mirror be concave or convexb what must be
the 20 cm diameter coil has 25 turns and has a current flowing through it of 5 a the magnetic field strength is 4 t the
a woman stands 20 m in front of a convex mirror and notices that her image height is 14 of her actual height determine