Problem 4: this problem deals with fresnel diffraction on two- dimensional rectangular aperture. the source is located in infinity and the screen is 50 cm away from the aperture. the aperture’s width is 8 mm and the height is 5 mm. wavelength of the light is λ = 632.8 mm (he-ne laser). what is the last visible fresnel zone? • what is the last fresnel zone fully contained in the aperture?

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

In an experiment, how can i change human errors? be specific.