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A camera lens with a focal length of 50mm and aperture of f/1.4 is used to image a scene. The photographer focuses the camera at an object in the scene 4m from the camera. The resolution of the camera at the image plane is such that image points appear out of focus when circles of confusion exceed 0.02mm diameter. Determine the limits of the depth of field in the photograph, i.e. calculate the range of object distances which appear in focus?
Sketch and describe a floe control loop.
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
A cosmic-ray proton in interstellar space has an energy of 17.0 MeV and executes a circular orbit having a radius equal to that of Earth's orbit around the Sun (1.50X10^11 m). What is the magnetic field in that region of space?
A centrifuge whose maximum rotation rate is 11,000 rev/min can be brought to rest in 3.00 s. What is the average angular acceleration of the centrifuge
A back-reflection Laue pattern is made of an aluminum crystal at 50 kv. What orders of reflection are present in the beam diffracted by these planes
In the figure below, the hanging object has a mass of m1 = 0.480 kg; the sliding block has a mass of m2 = 0.770 kg; and the pulley is a hollow cylinder with a mass of M = 0.350 kg, an inner radius of R1 = 0.020 0 m, and an outer radius of R2 = 0.0..
A small plane departs from point A heading for an airport 500 km due south at point B, Determine the proper heading for the plane and the time of flight
The earth's magnetic field is approximately 30 microTesla. An AC transmission wire carries a current of 10 A (RMS). What is the peak current in the wire? What is the maximum force per meter in the wire?
When four people with a combined mass of 290 kg sit down in a car, they find that the car drops 0.50 cm lower on its springs. What is the frequency of the car's vibration
The speaker and two microphones shown in the figure are arranged inside a sealed container filled with neon gas. What is the speed of sound in neon gas
An external force moves a 5.4-kg box at a constant speed up a frictionless ramp. The force acts in a direction parallel to the ramp. Calculate the work done on the box
A 56.0kg cheerleader uses an oil-filled hydraulic lift to hold four 110kg football players at a height of 1.30m. find the diameter of the football players' piston
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