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A lens for a 35- camera has a focal length given by = 46 .
How close to the film should the lens be placed to form a sharp image of an object that is 6.0 away?
What is the magnification of the image on the film?
two blocks are connected by a string over a disk-shaped pulley with mass M8.5 kg and outermost readuis R = 0.10m. Calculate the acceleration of the hanging block
A 6 m board of mass 7 kg is hinged at one end, with a 60 kg block nesting on the board 245 cm from the hings. A force ~F is applied vertically at the other end to lift of the board. Find the force exerted by the hinge
A solid sphere of mass m and radius r spins about a horizontal axis with a period T. Find the size of the torque acting on the sphere
If the density of conduction electrons is 10^27 m^3 and the wire has a radius of one millimeter, what is the electrical current through this wire
Two cars of equal mass are traveling as shown in the figure below just before undergoing a collision. find the magnitude and direction of their final velocity
An archer, about to shoot an arrow, is applying a force of +320 N to a drawn bowstring. What is the displacement of the bowstring
A block of mass 445 g is attachedto one end of a cord of mass 3.10 g;the other end of the cord is attached to a fixed point. Through what angle does the block rotate
A child is sitting on the outer edge of a merry-go-round that is 18 m in diameter. If the merry-go-round makes 8.4 rev/min, what is the velocity of the child in m/s
A rectangular loop of wire that is 45 cm wide and 13 cm long is placed in a region where the magnetic field is B = 0.2 T, obtain the magnitude of the magnetic flux
A 1000kg sports car accelerates from 0m/s to 33m/s in 13s. What is the average power of the engine
Mutual induction can be used as the basis for a metal detector. A typical setup uses two large coils that are parallel to each other , find the new value of the induced emf
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
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