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A stamp collector is viewing a stamp with a magnifying glass held next to her eye. Her near point is 25 cm from her eye. The refractive power of a magnifying glass that has an angular magnification of 6.0 when the image of the stamp is located at the near point is 20 dioptres.
a) What is the angular magnification when the image of the stamp is 41 cm from the eye?
On a very muddy football field, a 120 kg linebacker tackles an 80 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.8 m/s north, What is the direction of this velocity
In Stanford University's Linear Accelerator Machine, electrons are accelerated to a kinetic energy of 50 billion eV. The electron path in the accelerator is 3 km. The speed of these electrons turns out to be about 1.6 cm/s slower than speed of light.
At this point you are getting very tired and would like to get back as quickly as possible, but all of the available trails seem to lead you deeper into the woods. You would like to take a shortcut directly through the woods (ignoring the trails)...
10.2 A wire is made out of a steel alloy with Y = 2.00×1011Paand breaking stress 1.00×109 Pa . The wire is 5m long and is secured at one end to the ceiling and hangs vertically
A wheel turns 5 revolutions in 1 s. Find what is the average angular velocity
A 5.0 g hollow plastic ball is attached by a thread to the bottom of a beaker. When the beaker is filled with water so that the ball is completely submerged, the tension in the thread is 2.0 multiplied by 10-2 N. Decide the diameter of the ball.
a 3.3t magnetic field makes a 45 degree angle with a square loop 32cm on a side. whats the magnetic flux through the
you pull a simple pendulum of length 0.240m to the side through an angle of 3.50degree and release it. a. how much time
Ball 1, with a mass of 130g and traveling at 14m/s, collides head on with ball 2, What are the final velocities of each ball if the collision is perfectly elastic
an electron and a proton are each accelerated through a potential difference of 21 million volts. find the momentum in
A second skater initially at rest with a mass of 58.4 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision
The distance among the eyepiece and the objective lens in a certain compound microscope is 18.4 cm. The focal length of the objective is 0.600 cm, and that of the eyepiece is 1.80cm. Discover the overall magnification of the microscope.
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