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1.) A nearsighted person has a near point of 12 cm and a far point of 17 cm. If the corrective lens is 2.0 cm from his eye, what lens power will enable this person to see distant objects clearly?(answer should be in diopters)
2.) A nearsighted man wears contact lenses of -3.00 diopters. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
beam of light in air is incident at an angle of 45 degrees on the surface of a transparent solid. The light is deviated by 18 degrees toward the normal upon entering the solid. What is the critical angle for total internal reflection from within t..
a lead ball is dropped into a lake from a diving board 18 ft. above the water. it hits the water with a certain
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
a find the resistance that must be placed in series with a 10.0 galvanometer having a 125 acircmicroa sensitivity to
the armature of an ac generator has 100 turns. each turn is a rectangular loop measuring 8.0 cm by 12 cm. the
A mercury thermometer is constructed. The capillary tube has a diameter of 0.0057 centimeter, and the bulb has a diameter of 0.13 centimeter. obtain the change in height of mercury column for a temperature change of 48C
What is the change in length of the rope whilst the skier has the acceleration whose magnitude is 0.65 m/s2.
A jetliner is moving at a speed of 216 m/s. The vertical component of the plane's velocity is 79.70 m/s. establishes the magnitude of the horizontal component of the plane's velocity.
A wire of length l = 12.0 cm is moving with constant velocity in the xy-plane; the wire is parallel to the y-axis and moving along the x-axis. what must the velocity of the wire be
When a car going 30m/s turns left around a curve of radius 35 cm, the 60 kg passenger slides to the right. How much force does the passenger exerts on the door
A textbook of mass 1.90kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.150m, What is the tension in the part of the cord attached to the textbook
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.666. Find the smallest value for the angle ?, s..
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