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a scuba diver is swimming through a cave 3 m under the halocline the boundary between salt and fresh water the cave is
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1 an object is 10 cm from a lens the resulting upright image is one - fifth as large as the object what are the image
1 to correct hyperopia far sightedness convex lenses are prescribed if a senior citizen can read a newspaper only when
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an object is located on the principle axis of a concave mirror the object distance i smaller than the curvature radius
an object is 120 cm in front of a concave mirror that has radius or curvature 120 cm a calculate the image distance
a virtual image of magnification 20 is produced when an object is placed 70 cm in front of a spherical mirrora is the
a seed is 15 mm in front of a converging lens and the image of the seed is 40 mm behind the lens what is the focal
a disk of mass m 5kg and radius r05 m rolls to the right under the influence of force p 40n what is the minimum static
what is the self-inductance of a toriod of inner radius 5cm outer radius 15cm 10000 turns if the emf induced is 5 volts
for a balloon ride the balloon must be inflated with helium to a volume of 1500 m3 at sea level the balloon will rise
semi-trailer trucks have an odometer on one hub of a trailer wheel the hub is weighted so that it does not rotate but
a semicircle of radius a is in the first and second quadrants with the center of curvature at the ori- gin positive
in a series of oil-drop expiriments the charges measured on the oil drops were -320 x 10-19 c -640 x 10-19 c -960 x
a ball moving with a velocity of 83 ms collided with a ball of the same mass but moving at a velocity of - 65 ms if the
a ball of mass m1 and a block of mass m2 are attached by a lightweight cord that passes over fricionless pulley of
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