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An object is 7.94 cm from the surface of a reflective spherical Christmas-tree ornament 7.8 cm in diameter.
What is the position of the image?
Answer in units of cm
Also, What is the magnification of the image?
During a lunar eclipse, a picture of the moon (which has a diameter of 3.48×106 m and is 3.86×108m from the earth) is taken with a camera whose lens has a focal length of 305mm, What is the diameter of the image on the film
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An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ?
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