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a charged conducting sphere has a radius of 100 cm and is surrounded by an electric field the field strength at the
a cube of side of length 055 m has a temperature of 310 k and is in a room surrounded by 158ordmc walls if the
a certain lightbulb has a tungsten filament having a resistance of 16 at 22degc and 155 when hot assume r r01 t -
a 54 m-long rod of constant diameter 46 mm is made of 20 m of copper and the remainder of aluminum see above if the
a 100-m long string is moved up and down with simple harmonic motion with a frequency of 33 hz the crests of the wave
a circular pan of radius b 1010 cm has a plastic bottom and metallic side wall of height h 220 cm it is filled with
a 050-kg mass is attached to a spring of spring constant 20 nm along a horizontal frictionless surface the object
an aluminum wire carrying a current of 90 a has a cross-sectional area of 70 10-6 m2 find the drift speed of the
a container holds 20 mol of gas the total average kinetic energy of the gas molecules in the container is equal to the
a 40 turn coil of radius 54 cm rotates in a uniform magnetic field having a magnitude of 049 t if the coil carries a
at a certain location earth has a magnetic field of 060 10-4 t pointing 75deg below the horizontal in a north-south
a skater of mass 815 kg initially moves in a straight line at a speed of 530 ms the skater approaches a child of mass
as you bounce a tennis ball of mass 530 10-2 kg off a wall its velocity changes from vx 105 ms to vx -74 ms find the
a 1967 kennedy half-dollar has a mass of 1150 x 10-2 kg the coin is a mixture of silver and copper and in water weighs
the side mirror on a car is convex and has a radius of curvature of 25 cm another car is following 20 m behind the
a camera lens has a focal length of 500 mm and an aperture setting of 400 what is the aperture diameter of this
a ray of light in air with a wavelength of 600 nm is incident on a liquid with an index of refraction of 15 the ray of
the interior of a refrigerator has a volume of 0600 m3 the temperature inside the refrigerator in 282 k and the
a large balloon of mass 222 kg is filled with helium gas until its volume is 335 m3 assume the density of air is 129
if an x-ray beam of wavelength 14 times 10-10 m makes an angle of 30deg with a set of planes in a crystal causing first
an inductor l500 mh a capacitor c400 uf and a resistor r600 o are connected in series a 600 hz ac generator connected
a 120-v rms voltage at 600 hz is applied across an inductor capacitor and a 100- resistor in series if the maximum
a person in the air above the water in a swimming pool looks straight down into the water n 133 at a diamond ring that
carbon disulfide n163 is poured into a container made of fused quartz n146 what is the critical angle for internal
in a tape recorder the magnetic tape moves at a constant linear speed of 56 cms to maintain this constant linear speed