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A coin is located 18.0 cm to the left of a converging lens (f = 16.0 cm). A second, identical lens is placed to the right of the first lens, such that the image formed by the combination has the same size and orientation as the original coin. Find the separation between the lenses.
____cm
An object of mass 5.0 kg is attached to a string of length 2.0 m and rotating in a horizontal circle with an angular velocity of 3.0 rad/s
A horizontal plank of mass m and length L is pivoted at one end. The plank's other end is supported by a spring of force constant k. The moment of inertia of the plank about the pivot is .
Two electrons are fixed 2.1 cm apart. Another electron is shot from infinity and comes to rest midway between the two. What was its initial speed
A simple harmonic oscillator is described mathematically by x=0.25 sin(4.2pt +0.54px), What are the amplitude, speed and period of the wave
A train moving with constant velocity travels 180north in 12 and an undetermined distance to the west. The speed of the train is 36 M/S^2. Find the direction of the train's motion relative to north
A two-ended "rocket" that is at first stationary on a frictionless floor, with its center an origin of an x axis.
A long solenoid has a diameter of 12.0 cm. When a current i exists in its windings, Calculate the magnitude of the induced electric field at the following distances from the axis of the solenoid
A string with a length of 2 m resonates in three loops as shown above. The string linear density is 0.05 kg/m and the suspended mass is 1.5 kg. What is the frequency of oscillations
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
what are the two steps for simplifying radicals? can either step be deleted? if you could add a step that might make it
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. The tree is 24 m tall and 85 m away. What is the size of the image of the tree on your retina
A horizontal force of 20 N pulls a block of mass 3.7 kg across a level floor. The coefficient of kinetic friction between the block, what is the final speed of the block
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