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The desired overall magnification of a compound microscope is 150X. The objective alone produces a lateral magnification of 10.0X. Decide the required focal length of the eyepiece.
a cat with mass 4.5 kg is sitting on top of a turntable of mass 20 kg and radius 1.4 m. Calculate the magnitude of the angular velocity of the turntable in rotations per minute
a closed surface encloses a net charge of 3.40uc . what is the net electric flux through the surface? if the electric
A certain gyroscope consists of a uniform disk with a 56 cm radius mounted at the center of an axle that is 13 cm long and of negligible mass. what is the precession rate
A certain freely falling object, released from rest, requires 1.35 s to travel the last 24.0 m before it hits the ground. Find the total distance the object travels during the fall
An electron is moving northwards with a velocity 10^7 m/s in a magentic feild of 3T directed eastwards. Calculate the instaneous force on the electron
A 190 g block hangs from a spring with spring constant 15 N/m. At t=0s, the block is 13 cm below the equilibrium point and moving upward with a speed of 98.0 cm/s.
The rotor in a centrifuge has an initial angular speed of 430 rad/s. After 4.1 s of constant angular acceleration, its angular speed has increased to 540 rad/s. What was the angle through which it turned
Two wires are parallel (heading north-south). The current in each wire is northward. What is the direction of the magnetic field at the location of the right-hand wire due to the current in the left-hand wire? What is the direction of the magnetic fo..
two blocks are in contact on a frictionless table. a horizontal force f is applied to m2. if m1 1.57kg m2 3.26kg and
A string wound around a cylinder of 10 cm radius has has a 150 gram mass attatched. When released, the mass accelerates at 500 cm/second. what is the angular acceleration
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 23.0 m/s at an angle 28.0 degrees; What is the vertical component of the ball's velocity
In a double-star system, two stars of mass 6.0 *10^30 kg eachrotate about the system's center of mass at a radius of 2.0 * 10^11m. What is their common angular speed?
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