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A soap film with different thicknesses at different places has an unknown refractive index n and air on both sides. In reflected light it looks multicolored. One region looks yellow because destructive interference has removed blue (vacuum = 462 nm) from the reflected light, while another looks magenta because destructive interference has removed green (vacuum = 559 nm). In these regions the film has the minimum nonzero thickness t required for the destructive interference to occur. Find the ratio tmagenta/tyellow.
A screen is placed 1.40m behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.60cm, What is the distance between the two second-order minima
A 110 grams sample of water at 30 degrees Celcius is heat to steam at 130 degrees Celcius. how much heat is absorbed
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
A potential difference of 5.60 V will be applied to a 33.00 m length of 18-gauge tungsten wire (diameter = 0.0400inches). Calculate the current and Calculate the current density
A horizontal string of length 1.5 meters vibrates with a wave velocity of 1230 m/s at its fundamental frequency.
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
An electric motor rotating a workshop grinding wheel at a rate of 81 rev/min is switched off. Suppose the wheel has a steady negative angular acceleration of magnitude 1.90 rad/s2.
What is a gyroscope? Discuess the role of angular momentum in operation of a gyrosope. Provide examples of pratical applications of gyryscopes
A 44 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is 5.40 x10^5 N·m2/C. What is the magnitude of the electric field.
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
A charge of +45.9 C is at the origin. When charge Q is placed at 2 m along the positive x axis, What is the value of Q
With brakes fully applied, a 1550 kg car deccelerates from a speed of 78.0 km/hr. What is the change in the kinetic energy of the car
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