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A thin film of gasoline floats on a puddle of water. Sunlight falls perpendicularly on the film and reflects into your eyes. The film has a pink hue because destructive interference eliminates the green color (485 nm) from the reflected light. The refractive indices of the blue light in gasoline and water are 1.425 and 1.33. Determine the minimum non-zero thickness of the film.
A star is moving away from Earth at a speed of 2.3x10^8 m/s. find the wavelength as measured by an Earth observer
you are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
For the following diagram. , Y = 36 cm, X = 30 cm, Z (the distance from the Y axis to the center of the circle) equals 12 cm and the diameter of the circle is 16 cm. Circle is negative area. The distance from the x axis to the center of the circle..
The fastest measured pitched baseball left the pitcher's hand at a speed of 48.0m/s. how much time did it take him to pitch it
a particle enters a particle spectrometer. you are not sure of the charge or mass but you do know it banks right. you
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 1.55 hours. What is density of the planet
A capacitor is being charged from a battery and through a resistor of 10 kohms. It is observed that the voltage on the capacitor rises to 80% of its maximal value in 4 seconds. Calculate the capacitor's capacitance.
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the net torque exerted on the ball and arm
Starting from rest, a 12 cm diameter compact disk takes 2.4 s to reach its operating angular velocity of 2030 rpm. How much torque is applied to the disk
For a 1,498-kg car with a drag constant D=0.45 kg/m, which is moving at a speed of 44 mph. What is the magnitude of the maximum acceleration
In a demonstration, a 0.5kg magnet isdropped to the edge of a rotating circular steel plate. the mass ofthe plats is 5kg, the radius 0.3m. find the angular speed after the magnet is attached to the plate
The front 1.20 m of a 1,250-kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. What is the magnitude of the average force on the car
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