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The lower frequency limit of hearing for a particular human being is 25.3 Hz. What is the corresponding wavelength (in meters) for this frequency if the speed of sound in air is 343 m/s?
If a former emmetrope wears reading glasses of +2D to read at a distance of 25 cm, what is the near point without glasses?
a ball is shot from the top of a building with an initial velocity of 19ms at an angle 0 41 above the horizontal. what
Water has a mass mole of 18.0g/mol, each water molecule(H20) has 10 elelctrons. What is net charge of all electrons? How many electrons are there in one liter (1.00 x10-3m-3) of water?
A uniform plank of length 4.7m and weight 204 N rests horizontally on two supports, with 1.1 m of plank hanging over the right support. To what distance x can a person who weighs 445N walk on the overhanging part of the plank before it just begins ..
A 10.0 kg object oscillates at the end of a vertical spring that has a spring constant of 1.90 104 N/m. Calculate the frequency of the dampened oscillation
Light waves with two different wavelengths, 632nm and 474nm, pass simultaneously during a single slit whose width is 7.5 x10-5m and strike a screen 1.20 m from the slit.
A fire engine is driving directly away from a solid wall at 34 m/s on a hot 30.0^o C day while its siren emits a steady 420. Hz sound. Compute the frequency heard by a stationary listener
Two children use a homemadetelephone consisting of two paper cups connected by an aluminumwire which is 8.4 m long, find the time for the sound to travel from one cup to the other
at the familab accelerator in batavia illinois protons having momentum 5.00x 10-16 kg.ms are held in a circular orbit
Grating calculations: For a red wavelength of 650 nm and a grating with 500 lines/mm, calculate all possible diffraction angles, θ1 , θ2, θ3, θ4,... If R0.500 m tell the positions y1 Y2. Y3 y4 .... of the spots respect the central (m0) spot. How m..
What is the magnitude of the acceleration of the center of mass of the plank just after the right end is released? And can you explain why T is greater than mg?
A monochromatic light is incident on a Young's double slit setup that has a slit separation of 30.0 µm. Find the separation between the third-order bright fringe and the zero-order bright fringe
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