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An object has an angular size of 0.0150 rad when placed at the near point (21.0cm) of an eye. When the eye views this object using a magnifying glass, the largest possible angular size of the image is 0.0380 rad. What is the focal length of the magnifying glass?
Blocks A (mass 4.50 ) and B (mass 13.00 ) move on a frictionless, horizontal surface. Initially, block B is at rest and block A is moving toward it at 7.00. Find the velocity of each block after they have moved apart
A 189g block is launched by compressing a spring of constant k= 200 N/m a distance of 15cm. After launch, where does the block finally come to rest? Measure from the left end of the frictional zone
If the magnitude of the drift velocity of free electrons in a copper wire is 9.12 10-4 m/s, what is the electric field in the conductor
Two balls, one larger than theother, roll without slipping across a horizontal floor with thesame center of mass velocity. The ball with the larger radius hasthe larger magnitude of angular velocity about an axis through its center of mass. A rota..
An airplane propeller is 2.18 m in length (from tip to tip) with mass 97.0 kg and is rotating at 2600 rpm (rev/min) about an axis through its center. What would its angular speed have to be
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
A circular coil with an area A=.4400m^2 is rotating in a magnetic field B=2.70T at a frequency f=60Hz. what is the peak Emf induced in the coil
You stand on a frictionless platform that is rotating at anangular speed of 1.2 rev/s. Your arms are outstretched, and you hold a heavyweight in each hand. What is the resulting angular speed of the platform
A toy train is pushed forward and released at = 2.0 with a speed of 1.5 . It rolls at a steady speed for 2.8 , then one wheel begins to stick. The train comes to a stop 5.6 from the point at which it was released. Elucidate the train's accelera..
given that the speed of sound in the air is 343 ms and that human ears are typically 20 cm apart what is the maximum
A particle the has an 8.2-μC charge moves with a velocity of magnitude 5.0x105 m/s along the + x axis. Itexperienced no magnetic force, although there is a magnetic fieldpresent.
You observe that a solid cube of some material floats on the surface of an oil puddle at a service station with 68.7% of its volume submerged. What is the density of the cube\'s material
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