Landing on an Aircraft Carrier The Fresnel Lens Optical Landing System (FLOLS) used to ensure safe landings on aircraft carriers consists of a series of Fresnel lenses of different colors. Each lens focuses light in a different, specific direction, and hence which light a pilot sees on approach determines whether the plane is above, below, or on the proper landing path. The basic idea behind a Fresnel lens, which has the same optical properties as an ordinary lens is shown in Figure 27-30 . Suppose an object is 17.1 cm behind a Fresnel lens, and that the corresponding image is a distance d 1 = d in front of the lens. If the object is moved to a distance of 12.0 cm behind the lens, the image distance doubles to d = 2 d . In the FLOLS, it is desired to have the image of the lightbulb at infinity. What object distance will give this result for this particular lens? A lens causes light to refract at its surface; therefore, the interior glass can be removed without changing its optical properties. This produces a Fresnel lens, which is much lighter than the original lens. (Problem 93)
Landing on an Aircraft Carrier The Fresnel Lens Optical Landing System (FLOLS) used to ensure safe landings on aircraft carriers consists of a series of Fresnel lenses of different colors. Each lens focuses light in a different, specific direction, and hence which light a pilot sees on approach determines whether the plane is above, below, or on the proper landing path. The basic idea behind a Fresnel lens, which has the same optical properties as an ordinary lens is shown in Figure 27-30 . Suppose an object is 17.1 cm behind a Fresnel lens, and that the corresponding image is a distance d 1 = d in front of the lens. If the object is moved to a distance of 12.0 cm behind the lens, the image distance doubles to d = 2 d . In the FLOLS, it is desired to have the image of the lightbulb at infinity. What object distance will give this result for this particular lens? A lens causes light to refract at its surface; therefore, the interior glass can be removed without changing its optical properties. This produces a Fresnel lens, which is much lighter than the original lens. (Problem 93)
Landing on an Aircraft Carrier The Fresnel Lens Optical Landing System (FLOLS) used to ensure safe landings on aircraft carriers consists of a series of Fresnel lenses of different colors. Each lens focuses light in a different, specific direction, and hence which light a pilot sees on approach determines whether the plane is above, below, or on the proper landing path. The basic idea behind a Fresnel lens, which has the same optical properties as an ordinary lens is shown in Figure 27-30. Suppose an object is 17.1 cm behind a Fresnel lens, and that the corresponding image is a distance d1 = d in front of the lens. If the object is moved to a distance of 12.0 cm behind the lens, the image distance doubles to d = 2d. In the FLOLS, it is desired to have the image of the lightbulb at infinity. What object distance will give this result for this particular lens?
A lens causes light to refract at its surface; therefore, the interior glass can be removed without changing its optical properties. This produces a Fresnel lens, which is much lighter than the original lens. (Problem 93)
Starlord has a mass of 89.3 kg and Groot is pulling the bag with a force of 384. N at an angle of 35.0˚ as is shown in the figure below. What is the coefficient of kinetic friction if they are moving at a constant speed of 2.31 m/s?
Early on in the video game Shadow of the Tomb Raider Lara Croft uses a winch to pull a heavy crate of stone up a 23.6° incline. If Lara causes the 66.0 kg crate to accelerate at 2.79 m/s2 up the ramp, what is the tension in the rope pulling the block? The coefficient of kinetic friction between the block and the ground is 0.503.
A player kicks a football at the start of the game. After a 4 second flight, the ball touches the ground 50 m from the kicking tee. Assume air resistance is negligible and the take-off and landing height are the same (i.e., time to peak = time to fall = ½ total flight time). (Note: For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.) Calculate and answer all parts. Only use equations PROVIDED:
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