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A 1-cm-thick layer of water stands on a horizontal slab of glass. Light from a source within the glass is incident on the glass-water boundary. What is the maximum angle of incidence for which the light ray can emerge into the air above the water? (Give your answer in degrees.)
Two very large parallel plates are oppositely and uniformly charged. The field between the plates is 1.7×106N/C, How much total charge is on each plate if they are 18.0cm on a side
Two thin lenses with a focal length of magnitude 16.5cm , the first diverging, How far from this first lens is the final image formed
A particle with a mass of 3.65×10?24 kg and a charge of 6.40×10?19 C starts at rest and is accelerated for a distance of 0.104 m through a uniform electric field having strength E = 7.25×104 N/C
A pendulum swinging in a circular arc under the influence of gravity, has both centripetal and tangential components of acceleration. Where is the centripetal acceleration a maximum
a teacher standing in a doorway 1.0 m wide blows a whistle with a frequency of 1000 hz to summon children from the playground. which boy may not hear the whistle
A viewing window in the Atlanta aquarium is 55 inches wide and 46 inches high. what is the outward force on the window
A sample of ideal gas occupies a volume of one litre at atmospheric pressure and temperature, 20 C. What pressure is required to squeeze the gas into one-half litre at 40 C?
Calculate the cutoff frequency of the dominant mode and determine how many modes are passed at three times cutoff frequency of dominant mode and calculate the cutoff frequency of the dominant mode
The rotational inertia of a collapsing spinning star changes to 1/4 its initial value. What is the ratio of the new rotational kinetic energy to the initial rotational kinetic energy.
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. What is the current through the lightbulb
A glass plate (n=1.62) is coated with a thin, transparent film (n=1.27). Light reflected at normal incidence is observed as the wavelength is varied continuously. Find the thickness of the film
A charge of -5 micro-coulombs is placed at x = 0 cm, y = 0 cm. Another charge of -5 micro-coulombs is placed at x = +22 cm, y = -50 cm. When measured counter-clockwise from the x axis, what angle is the electric force vector acting on the charge a..
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