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Light from a helium-neon laser (λ = 632.8 nm) is incident on a single slit. What is the maximum width for which no diffraction minima are observed? (Hint: Values of sin θ > 1 are not possible.)
jupiter has about 300 times the mass of earth and about ten times earth radius. estimate the size of g on the surface
A 1N apple which is 5 m from the ground breaks from its stem and falls to the ground. When it has fallen a distance of 2 meters, calculate its mechanical energy relative to the ground
Two small balls are given positive charges. When they are a distance of 15.6 apart, the repulsive force between them has a magnitude of 0.220. What is the charge on the second sphere
Air that initially occupies 0.16 m3 at a gaugepressure of 100 kPa is expanded isothermally to a pressure of 101.3kPa and then cooled at constant pressure until it reaches itsinitial volume. Compute the work done by the air
An electron is confined to move in the xy plane in a rectangle whose dimensions are Lx and Ly. That is, the electron is trapped in a two-dimensional potential well having lengths of Lx and Ly. In this situation, the allowed energies of the electron d..
The muons created by cosmic rays in the upper atmosphere rain down uniformly on the earth's surface, although some of them decay on the way down, with a half-life of about 1.5?s (measured in their rest frame).
An ancient bone contains 47.5% as much 14~C~6 as a piece of living matter with an equal carbon content. How old is the bone
Mercury is poured into a U-tube as shown in Figure (a). The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2.
A 7.0 kg ball with the initial velocity of (7i+5j)m/s collides with a wall and rebounds with a velocity of (-7i+5j)m/s. what is the impulse exerted on the ball by the wall
f g.mmr2 where f is the gravitational force m and m are masses and r is a length. force has the si units kg middot
A submarine dives 90.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of submarine's displacement? (Imagine that upward and the direction of the submarine's horizontal motion is positive.)
A rock is thrown vertically upward with a speed of 11.0m/s from the roof of a building that is 70.0m above the ground, What is the speed of the rock just before it strikes the ground
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