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A physics professor requires reading glasses with +2.00 D power toread a book held 40.0 cm away with a relaxed eye. Assume the glasses are 2.00 cm in front of his eyes.
a) What is his uncorrected far point?b) What refractive power lenses should he use for distance vision?c) His uncorrected near point is 1.00 m. What should be the refractive powers of the two lenses in his bifocals be to give him clear vision from 25.0 cm to infinity?
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. What is the speed of the sled right before the team jumps on the sled
A 4.7 kg block moving at 4.7 m/s makes a head-on elastic collision with a stationary block of mass 3.9 kg. Find the kinetic energy of the system after the collision
A light ray in air is incident on a transparent material whose index of refraction is n, Evaluate your expression for light incident on glass
A uniform solid sphere rolls without slipping down a 19° inclined plane. What is the acceleration of the sphere's center of mass
Two 2.0-cm-diameter insulating spheres have a 5.30 cmspace between them. One sphere is charged to + 93.0 nC, theother to - 37.0 nC. What is the electric field strength at the midpoint between the two spheres?
Water is flowing through a channel that is 12m wide with a speedof 0.75m/s. find the speed of the water in oneof the smaller channels
If 100,000 MHz radar waves are incident on a plane coated with a polymer whose index of refraction is n = 1.50, how thick would you make the coating
A vibration sensor, used in testing a washing machine, consists of a cube of aluminum 1.50 cm on edge mounted on one end of a strip of spring steel (like a hacksaw blade) that lies in a vertical plane. what is its frequency of vibration
What gauge pressure must a pump produce to pump water from the bottom of the Grand Canyon (elevation 730 ) to Indian Gardens (elevation 1370 )
A singly charged ion (charge q = +1.60e-19 C) completes four revolutions in a uniform magnetic field, Calculate the mass of the ion in kilograms
Astronauts on the space shuttle used radar to determine the magnitudes and direction cosines of the position vectors of two satellites A and B. What is the angle between the two vectors rA and rB
The most intense beam of light that can propagate through dry air must have an electric filed whose amplitude is no greater than the breakdown value of Eair max= 3.0*10^6 V/m, CALCULATE THE MAXIMUM AMPLITUDE OF THE MAGNITIC FILED
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