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(a) A clear image of an object is formed on the retina of a human eye. As the object moves closer to the eye, for a clear image to still be formed on the retina, what change occurs in the eye? the lens moves farther away from the retina the lens moves closer to the retina the lens' focal length increases the lens' focal length decreases (b) A clear image of an object is formed on the film of a camera. As the object moves closer to the camera, for a clear image to still be formed on the film, what change occurs in the camera? the lens moves farther away from the film the lens moves closer to the film the lens' focal length increases the lens' focal length decreases (c) A clear image of an object is formed on the film of a camera. As the object moves farther away from the camera, for a clear image to still be formed on the film, what change occurs in the camera? the lens moves farther away from the film the lens moves closer to the film the lens' focal length increases the lens' focal length decreases (d) A clear image of an object is formed on the retina of a human eye. As the object moves farther away from the eye, for a clear image to still be formed on the retina, what change occurs in the eye? the lens moves farther away from the retina the lens moves closer to the retina the lens' focal length increases the lens' focal length decreases.
A 10-kg bullet is fired horizontally into a 300-g wooden block initially at res on a horizontal surface and become embedded in it. The coefficient of friction between block and surface is (0.50).
A 23 gram bullet traveling 230m/s penetrates a 2kg block of wood and emerge clearly at 170m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after bullet emerges.
What percentage of error in would be made if the moment of inertia of the pulley were avoid? Ignore friction in the pulley bearings.
A block is given an initial velocity of 5 m/s up a frictionless 19° incline. How far up the incline does the block slide before coming (momentarily) to rest.
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
A spelunker is surveying a cave. She follows a passage that takes her a distance 189 straight west, then a distance 220 in a direction 45 east of south, after that a distance 280 at 30 east of north. After a fourth unmeasured displacement she find..
Recognize and sketch all the external forces acting on the chair. Because the chair can be represented as a point particle of mass, draw the forces with their tails centered on the black dot in the middle of chair. Be certain to draw the forces so th..
What is the ratio of the amplitude of the damped oscillation
A doubly charged helium atom whose mass is 6.6 10 to 27 kg is accelerated by a voltage of 2200 V. What will be its radius of curvature if it moves in the plane perpendicular to a uniform 0.308 T field?
Let the building is 50 m tall, the initial horizontal velocity is 9.0 m/s, and the initial vertical velocity is 12.0 m/s. select your coordinates such that the positive y-axis is upward, and the x-axis is to the right, and the origin is at the poi..
The charge is uniformly distributed within volume of each sphere.How much kinetic energy does the block gain.
The speaker coil consists of 100 turns of wire, 2cm in diameter. The current in the speaker will be 1.6 A when the force on the speaker coil is 14.8 N. What strength magnetic field will give this force.
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