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a steam catapult launches a jet aircraft from rest from theaircraft carrier john c stennis giving it a speed of 205 mih
a motorist drives north for 320minutes at 765 kmh and then stopsfor 150 minutes he then continues north traveling 130
water is flowing through a pipe with a constriction the diameter of the narrow section is one-half the diameter of the
a fluid with viscosity n flows through a tube of radius r and length l a second fluid with viscosity 4n flows through
the wave function for a harmonic wave on a string is yxt 100mmsin628m-1x 314 s-1ta in what direction does this wave
assume a 400-cm-long violin string has a mass of 120 g andis vibrating in its fundamental mode at a frequency of 500hza
the inner and outer surfaces of a cell membrane carry a negativeand positive charge respectively because of these
an electron is moving with a speed of 085c in adirection opposite to that of a moving photon calculate the relative
metal sphere a of radius 12cm carries 6 muc of charge and the metal sphere b radius 18cm carries -4 muc of charge if
a steel ball of mass m is fastened to a light cord of length land released when the cord is horizontal at the bottom
a helium-neon laser beam has a wavelength in air of 633 nm ittakes 143 ns for the light to travelthrough 250 cmof an
a 82 fisherman jumps from a dock into a 124 rowboat at rest on thewest side of the dock if the velocity of the
a spherical weather balloon os filled with hydrogen until itsradius is 3m total mass including instruments is 15kga
to recharge a 12 v battery a battery charger must move 36 x 105 c of charge from the negative terminal to the positive
a vertical spring k 305nm vibrates with amplitude of 28cm when26kg hangs from it the mass passes through the
an alpha particle a helium nucleus is traveling along thepositive x-axis at 1175 ms when it enters a cylindrical tube
power lines have a limit on the maximum size of the electric fieldthey produce in most states a maximum of 5knc at
if the breakers at a beach are separated by 40 m and hit shore with a frequency of024 hz with what speed are they
a boy with a mass of 45 kg is hangingfrom a spring with a spring constant of 180 nm with what frequency does the boy
a 34 g bullet travelling at 120ms embeds itself in awooden block on a smooth surface the block then slides toward
a soccer player kicks a rock horizontally off a 400 m high cliffinto a pool of water if the player hears the sound of
inez is putting up decorations she ties three light silkribbons together at the top of a getaway and hang a balloon
sam heaves a shot with weight 16-lb straight upward giving it aconstant upward acceleration from rest of 460 ms2 fora
a conducting sphere that carries a total charge of -6 muc isplaced at the center of a conducting spherical shell that
calculate the heat released when 400 l of chlorine gas with a density of 188 gl reacts with an excess of sodium metal