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Two flat mirrors meet at angle theta. An incoming ray reflects off of both mirrors before emerging from the mirror-pair. Show that the angle among the incoming ray and the exiting ray is phi = 180° – 2theta.
Objects with masses of 110 kilogram and a 410 kilogram are separated by 0.390 meter. Obtain the net gravitational force exerted by these objects on a 38.0 kg object placed midway between them
An ice block is pushed horizontally on a frictionless surface with initial velocity v0. At some point, it comes to the nearly semicircular bump with a radius R=0.42m and the height h=0.33m above the ground.
A nonconducting thin layer carries charge with a uniform density of 8.40 µC/cm2. (a) What is the electric field 3.80 cm in front of the wall if 3.80 cm is small compared with the dimensions of the wall? magnitude and direction?
A mono energetic beam of electrons (me = 9.11 x 10-31 kg) whose kinetic energy is 120 eV is incident on a single slit of width 1.0 nm. A diffraction pattern is formed on a screen 20 cm from the slit. What is the width of the central maximum (i.e. the..
Boxes are moved on a conveyor belt from where they are filled tothe packing station 11.0 m away. The belt is initially stationaryand must finish with zero speed. what is the minimum transit time for each box
A river 101.8 m wide flows toward the south at 31.0 m/min. A girl on the west bank wishes to reach the east bank in the least possible time. What is her velocity relative to land
A physics student standing on level ground finds that an imaginary line drawn from his eye to the top of a tree, If his eyes are 5.8 feet above ground, what is the height of the tree
Two converging lenses, A with a focal length of +2.0cm and B with a focal length of +5.0cm, are placed 14 cm apart. An object is place 3.0cm to the left of lens A. Utilize the lens equation decide the characteristics of the image
q1. a 1.00-kg teflon disk is slid down a 5.00-m steel plate that is mounted at a 30 degree angle with respect to
Alpha particles of kinetic energy K are scattered either from a gold foil or a silver foil of identical thickness. Find the ratio of the number of particles scattered
A concave mirror (f = 50. cm) produces an image whose distance from the mirror is one-third the object distance. Decide (a) the object distance and (b) the image distance. Treat the fraction as an exact number.
A generator uses a coil that has 330 turns and a 0.34-T magnetic field. determine the length of the wire from which the coil is made
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