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A convex spherical mirror has a focal length of magnitude 7.20 cm.
(a) What is the location of an object for which the magnitude of the image distance is one-third the magnitude of the object distance?
(b) Find the magnification of the image.
(c) State whether it is upright or inverted.
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Two thin lenses with a focal length of magnitude 15.0 cm, the first diverging and the second converging, are located 11.3 cm apart. An object 3.20 mm tall is placed 25.0 cm to the left of the first (diverging) lens.
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.0 multiply.gif 104 rev/min. Determine the angle (in radians) through which the drill rotates during this period
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A 1.8 hp electric motor provides a force of 382 N to maintain a constant speed for a long rope attached to a pulley lifting a bucket of coal from a mining shaft
question1a 50-kg student on a sled starts from rest at a vertical height of 20 m above horizontal base of a hill and
your friends mass is 65kg. if she jumps off a 110-cm high table how far does the earth move toward her as she falls? a
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