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A very thin sheet of plastic (n=1.65) covers one slit of a double-slit apparatus illuminated by 640nm light. The center point on the screen, instead of being a maximum, is dark.
What is the (minimum) thickness of the plastic?
An object of mass 279.948159 g executes SHM with an amplitude of 15.523567 cm and a period 26.969187 s. Find the force acting on the object at time 1.403065 s
Sunlight is used in a double-slit interference experiment. The fourth-order maximum for the wavelength of 470 nm occurs at an angle of θ = 90°. Thus, it is on the verge of being eliminated from the pattern since θ cannot exceed 90°.
A 50 g horizontal copper rod has a length of 1.0 m. Calculate the minimum current in the rod so that it will float in a horizontal magnetic field of 2.0 T
An astronaut orbiting the Earth is preparing to dock with a Westar VI satellite, Determine the speed of the satellite
Having grown tired of hearing loud music from passing cars at 3 am and the boisterous yelling of bar patrons at closing, If her new home is 2.8 km from the freeway, what's the intensity level there
A spaceship of proper length 310 m takes 0.79 µs to pass an Earth observer. Determine the speed of this spaceship as measured by the Earth observer
What is maximal speed v of the elevator
What is the acceleration of two falling sky divers. Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting flywheel up to its top speed of 440 π rad/s. One such flywheel is a solid, uniform cylinder with a ..
A vertical scale on a spring balance reads from 0 to 195 rm{N}. The scale has the length of 11.5 rm{cm} from the 0 to 195 rm{N} reading. A fish hanging from the bottom of spring oscillates vertically at a frequency of 2.30 rm{Hz}. What is the m of..
find the arrow's initial speed? How long did it take for the arrow to first reach a height of 17.5 m above its launch point.
A charged particle of mass 1.56 g is moving at a speed of 1.39 104 m/s. the particle moves by a distance of 0.150 m in a direction perpendicular to the velocity. Find the charge on the particle
A small piece of dust of mass m = 1.2 g travels horizontally through an electric air cleaner in which the electric field is 472 N/C, What is the charge of the dust particle
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