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A glass rod with a refractive index of 1.55 is ground and polished at both ends to hemispherical surfaces with radii of 6.00 cm. When an object is placed on the axis of the rod, 25. cm to the left of the left-hand end, the final image is formed 65.0 cm to the right of the right hand end. What is the length of the rod measured between the vertices of the two hemispherical surfaces?
a camera lens n 1.50 is coated with a thin film of potassium bromide n 1.56 of thickness 87.9 nm. what wavelength in
A string is wrapped tightly around the circumference of a wheel with a mass of 1.23kg and a radius of .324m. What is the moment of inertia of the wheel
hree identical small Styrofoam balls (m = 1.81g) are suspended from a fixed point by three nonconducting threads, What is the common charge q carried by each ball
A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is, What is Q
a variable capacitor is connected in series to an inductor with negligible internal resistance and of inductance 4.25 x
A parallel-plate capacitor with circular plates of radius R is being discharged. What is the discharging current
While rearranging a dorm room, a student does 435 J of work in moving a desk 2.5 m. What was the magnitude of the applied horizontal force
a 2-kg ball is moving with a constant speed of 5 ms in a horizontal circle whose radius is 50 cm. what is the
A man is trying to lift 60.0 kg off the floor by bending at thewaist. Assume that the man’s upper body weighs 455 Nand the upper body’s centre of gravity is 38 cm from thesacrum (tailbone).
A hollow cylinder (hoop) is rolling on a horizontal surface at speed 5.5m/s when it reaches a 11?incline. How far up the incline will it go
In one dimension, an inertial ball of mass 1 kg has a speed of 1.50 m/s to the right and another inertial ball of mass 3 kg has a speed of 2.00 m/s to the left. Find the velocity of the center of mass after the collision
A cosmic-ray proton in interstellar space has an energy of 10 MeV and executes a circular orbit having a radius equal to that of Mercury's orbit around Sun (5.80 × 1010 m). What is the magnetic field in that region of space.
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