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1. A person who is far-sighted has a near point of 45 cm. The distance between the lens of the person's eye and their retina is 1.7 cm. What is the magnitude of the focal length, |f|, of the corrective lens needed for this person to see an object 25 cm in front of their eye?
2. A soap bubble is made of a film of soapy water (n = 1.33) that is 300 nm thick and is surrounded on both sides by air (n = 1). What is wavelength (in air) of light will experience constructive interference inside the bubble (i.e., after passing through the film of soapy water)?
You and a friend are bicycling from Sprindale to Bentonville. You maintain a constant speed for the entire distance trip. Your friend, Who gets to Bentonville first
Two small particles have charges Q1 = +2.5 C and Q2 = 5.5 C. If the magnitude of the electric force between the particles is 110 N, what is the distance between the particles?
An organ pipe is 2.0 m long. Assume the pipe is cylindrical withone closed and one open end. what is the longest wavelength λ for a standing sound wavepossible in the pipe?
A certain parallel-plate capacitor is filled with a dielectric for which ? = 5.91. What is the maximum energy that can be stored in the capacitor
A horizontal force of 109 Newton pushes an 8 kilogram block up a frictionless incline that creates an angle of 23 degree with the horizontal. Find the normal force that the incline exerts on block
A 19.3-g mass of gold in the form of a cube is 1 cm long on each side (somewhat smaller than a sugar cube). What would be the length of the sides of a cube having twice this mass of gold
One mole of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. evaluate the heat added to the gas
A parallel-plate capacitor has fixed charges +Q and -Q. By what factor does the energy stored in the electric field change
The electric field of a sinusoidal electromagnetic wave obeys the equation , find the amplitude of the electric field of this wave
A 50.0-g sample of a material at 80.0 degree C is dropped into a calorimeter containing 100.0g of water at 20.0 degree C. What is the specific heat of the material
You have a spring attached to the bottom of a container. The spring is aligned vertically. The container is filled with water (density 1.0 x 103 kg/m3). How much does the block compress the spring
A particle leaves the origin with an initial velocity v = (1.00 ) m/s and a constant acceleration a = (-1.00 - 0.700 ) m/s^2. What is the position vector of the particle at this time
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