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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?
Assume you are 65.00 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.0 mm.
What is the final speed of the crate after being pulled. On a very muddy football field, a 100 linebacker tackles an 80 halfback. Immediately before the collision, linebacker is slipping with a velocity of 8.5 north and the halfback is sliding with..
suppose that the gold ions carry one elementary unit of positive charge.
Ilya and Anya each can run at a speed of 8.40mph and walk at a speed of 3.00mph. Find Anya's average speed. How long does it take Ilya to cover the distance
An alpha particle (m= 6.64E-27 kg) trapped in the nucleus of an atom can be modelled as a particle moving in a one-dimensional box of width 1.00E-14m. calculate The ground state momentum of the particle
During a particular car crash, it takes just 0.18 sec for the car to come to a complete stop from 50 km/hour. At what rate is the car accelerating during the crash
Consider two points charges held fixed at locations along the x-axis. Charge q1= 5.00mC is located at x1= 1.00m. Charge q2= -5.00 mC is located at x2=4.00m. calculate the magnitude and direction of the electrostatic force
A woman rides on a Ferris wheel of radius 16 \rm m that maintains the same speed throughout its motion. What is her mass in kilograms
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 240 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes. Because of these charges, the spring..
A 1460-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16300 N on the submarine, as well as a downward resistive force of 1090 N. What is the submarine's acceleration?
A ball is thrown straight upward in the air at a speed of 18.0 m/s, What is the maximum height the ball will reach
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