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A pinhole camera is made from an 82cm -long box with a small hole in one end.
If the hole is 5.7m from a 1.9m -tall person, how tall will the image of the person on the film be?
___m
A 395 turn circular loop coil 16 cm in diameter is initially aligned so that the axis is perpendicular to the earth's magnetic field. What is the magnitude of the earth's magnetic filed at this location
A small, 100g cart is moving at 1.2 m/s on an air track while it collides with a larger, 1.00kg cart at rest. After the collision, the small cart recoils at .850 m/s. what is the speed of the large cart after the collision.
Two identical capacitors store different amounts of energy: capacitor A stores 2.4 x 10-3 J, and capacitor B stores 1.3 x 10-4 J. Find the voltage across the plates of capacitor A
A hoop and a disk, both of 0.68- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.6 m high and 7.7 m long. What is the speed of the disk
Object O1 is 15.9 cm to the left of a converging lens with a 10.2-cm focal length. What is the overall magnification of this system
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
A simple pendulum consists of a ball of mass 5.00 kg hanging from a uniform string of mass 0.0510 kg and length L, determine the speed of a transverse wave in the string when the pendulum hangs vertically
A football is thrown with an initial upward velocity component of 12.5m/s and a horizontal velocity component of 17.0m/s. How far has the football traveled horizontally from its original position
A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit by a bat. What is the average vector force the ball exerts on the bat during their interaction
A 0.020-kg bullet is shot horizontally and collides with a 1.35-kg block of wood. The bullet embeds in the block, what was the original speed of the bullet
A block of mass M=0.986kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the block in place. find the direction of the buoyant force acting on the block
Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 µm. Find the peak magnetic field strength
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