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A woman can read the large print in a newspaper only when it is at a distance of 66 cm or more from her eyes.
(a) Is she nearsighted (myopic) or farsighted (hyperopic), and what kind of lens is used in her glasses to correct her eyesight?
(b) What should be the refractive power (in diopters) of her glasses (worn 2.9 cm from the eyes), so she can read the newspaper at a distance of 21 cm from the eyes?
A 65kg, 1.70m tall person is standing in a room, Find the air temperature at which the heat transfer rate by radiation is just balanced by the rate of heat generation
Illustrate what should be the other mass so that the displacement of either mass during the first second following release is 0.34 m? Assume a massless, frictionless pulley and a massless string.
Find the energy of the capacitor at the moment.
Three equal point charges, each with charge 2.00, are placed at the vertices of an equilateral triangle whose sides are of length 0.650. Illustrate what is the electric potential energy of the system?
you notice that the image flips when you are 0.500 m from the mirror. Determine the radius of curvature for the mirror
You put a kettle on to boil and forget about it so that all the water boils away. what is the change in entropy of the water once it has all turned to steam
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball, How tall is the building that the child is standing on
A 1000kg sports car accelerates from 0m/s to 33m/s in 13s. What is the average power of the engine
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 270 V, the ion enters a magnetic field of 0.590 T, Calculate the radius of the path of the ion in the field
A 5.20 g pop up toy is compressed 1.50 cm and pops up to the height of 50 cm the spring constant is 270 Nm. What is the loss of energy.
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. How close are the two charges
Calculate the velocity a spherical rain drop would achieve falling from 5.00 km, in the absence of air drag
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