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To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, so a sharp image always falls on the film. A camera with a telephoto lens (f = 220 mm) is to be focused on an object located first at a distance of 3.59 m and then at 54.7 m. Over what distance must the lens be movable?
The period of a macroscopic pendulum made with a mass of 10 g suspended from a massless string 50 cm long is 1.42 s. Compute the ground-state (zero-point) energy
An object of mass 3m0 moves to the right at 0.8c. Calculate its momentum and energy
A major motor company displays a die-cast model of its first automobile, made from 6.60 kg of iron. What mass of gold is needed to make the new model
The drawing shows six point charges arranged in a rectangle. The value of q is 9.0 uC, and the distance d is 0.13 m. Find the total electric potential at location P
A series RCL circuit is comprised of a 3.00-mH inductor and a 5.00-µF capacitor. What is the resonant frequency of this circuit
Two small metallic spheres, each of mass m = 0.212 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.9 nC, and they come to equilibrium when each string is ..
A 275 ball is tied to a string. It is pulled to an angle of 4 and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 20.
One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, find the speed of sound in the gas in the tube
2-information centers used for retail credit authorization are located in 2-different major population centers, which are separated from each other through a large zone of very little population.
The work completed by friction on the rock when it moves from point to point at the bottom of the bowl has magnitude 0.22. Just as the rock reaches point, what is the normal force on it because of the bottom of the bowl .
What are vertical and horizontal components of the ball's momentum immediately after striking the crossbar. what is an average acceleration of the ball during this time interval.
Over a certain region of space, the electric potential is given by: V = 3x^2 - 2xy + xyz, Find the expressions for the x, y, and z components of the electric field over this region
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