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1) An object is 13 cm from the surface of a reflective spherical Christmas-tree ornament8.27 cm in diameter. What is the position of the image?
2) What is the magnification of the image?
a glass sheet 1.10 ?m thick is suspended in air. in reflected light there are gaps in the visible spectrum at 536 nm
The force between two point charges is 20.0 N. If the charges are1.00 m apart and one charge has a magnitude 20.0 μC, what is the magnitude of the second charge
An archer shoots an arrow with a velocity of 45m/s at an angle of 50 degrees with the horizontal. An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the least initial speed required to ..
A 1.0-kg mass is attached to a string wrapped around a shaft of negligible mass and having a 8.0-cm radius. A dumbbell-shaped "flywheel" made from two 0.500-kg masses is attached to one end of the shaft and perpendicular to its axis. The mass is rele..
an electron initially traveling in the x-direction with a speed of 4 x 105 ms enters a uniform electric field directed
A 80.0 box contains helium at a pressure of 1.50and a temperature of 110. What is the initial thermal energy of each gas
A 17 kg object and a 23 kgobject are connected by a massless compressed spring and rest on a frictionless table.After the spring is released, the object with the smaller masshas a velocity of 3m/s to theleft.
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 84.4 m. How tall is the antenna
question1a 150 30.0-cm-diameter turntable rotates on frictionless bearings at 61.0. a 17.0 block sits at the center of
The drawing shows a top view of a square room. One wall is missing,and the wall on the right is a mirror. From point P in the center of the open side, a laseris pointed at the mirrored wall.
How far away can a human eye distinguish two car headlights 1.8 m apart? Consider only diffraction effects and assume an eye pupil diameter of 5.5 mm and a wavelength of 550 nm.
find the transformation matrix r that describes a rotation of 90 degrees about an axis from the origin through the
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