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a curve of radius 60m is banked for a design speed of 100kmhif the coefficient of static friction is 30 wet pavement at
a small sphere that carries a chargeq is whirled in a circle at the end of an insulatingstring the angular frequency of
a wire of initial length l0 and radiusr0 has a measured resistance of 40 the wire isdrawn under tensile stress to a
two vectors have magnitudes of 10m and 15 m the angle between themwhen they are drawn with their tails at the same
a toy racing car moves with constant speed around the circle whenits coordinates are x 0 y 3m its velocity is6msi
the typical operating voltage for anelectron microscope is v 50kv a what isthe smallest feature one could hope
a 120-v motor has mechanical power output of 210 hp it is 800 efficient in converting power that it takes in by
a a nickel surface is exposed to light of wavelength235 nm the work function of ni is 51 ev what is the maximum speed
a hanging magnesium wire with diameter013 cm is initially 20 m long when a 28kg mass is hung from it the wire stretches
a square coil enclosing an area with sides 20 cm long is wrappedwith 2 500 turns of wirea uniform magnetic field
a proton moving with a speed of 30 times 105 ms perpendicularto a uniform magnetic field of 020 t will follow which
with light from a gaseous discharge tube incident normally on a grating with slit separation 214 mum sharp maxima for a
a television screen is illuminated using a beam of electronstraveling at 750times106 ms in a175times10minus2 t magnetic
you are standing in the middle of the recreation room of anuclear submarine that is lurking in the arctic ocean at
a long straight wire of length 15 mcarries a current of i 60a if a magnetic field of magnitude b 13 t is directed
an electron microscope is designed to resolve objectsas small as 014 nm what energy electronsmust be used in this
an energetic father stands at the summit of a conical hill as he spins his 23kg child around on a 60kg cart with a
a coil copper wire has aresistance of 100 ohms and a coil of silver has a resistance of101 ohlm both at 0degrees
the graph shows how the force component fcosalong the displacement varies with the magnitude s of thedisplacement find
when a light bulb is connected across the terminals of a battery the battery delivers 24 w of power to the bulb a
a strong electromagnet produces a uniform magneticfield of 160 t over a cross-sectional area of 0200 m2we place a coil
why does a tile or wooden floor feel colder ahtn a carpeted floor when both are at the same temp assume both below room
two speakers are both emitting sounds the first with an intensitylevel of 1 x 10-6 wm2 and the second with anintensity
a particle of mass m slides down an inclined plane under the influence of gravity a if the motion is resisted by a
a copper wire of radius a 0331 mm has an aluminum jacket of outer radius b 0459 mm there is a currenti 223 a in the