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A photon is emitted from a light bulb located 2 m above the floor. The photon travels in a straight line shown with the dashed arrow in the diagram below. The angle among the photon’s path and the wall is 65 degrees. When the photon is at a horizontal distance of 3 m from the wall, its path changes so that the photon moves at an angle of 20 degrees above the horizontal until it strikes a second wall, parallel to the first as shown in the diagram. If the two walls are five meters apart, how far above the floor will the photon strike the second wall?
A cylindrical nsulated wire of diameter 2.0 mm is tightly wound 200 times around a cylindrical core to form a solenoid with adjacent coils touching each other. When a 0.10 A current is sent through the wire, what is the magnitude of the magnetic fiel..
If the spring is not a perfect spring but instead the magnitude of the force exerted by the spring is k times the cube of the amount stretched or compressed
Find the maximum current in a series circuit with a 25.0 mH inductor and an AC generator with an output rms voltage of 78.0 V
A bicyclist of mass 78 kg putsall his weight on each downward-moving pedal as he pedals up asteep road. determine the magnitude of the maximum torque he exerts
A point charge of magnitude q is at the center of a cube with sides of length L. find the electric flux through each of the six faces of the cube
A 0.300 kg} glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/s} when it makes a head-on collision with a stationary 0.150kg} glider. Find the final kinetic energy of first glider.
As people sing in church, the sound level everywhere inside is 107 dB. No sound is transmitted through the massive walls, but all the windows and doors are open on a summer morning. Their total area is 23.0 m2. (a) How much sound energy is radiated i..
question interstellar space has a magnetic field on the order of 0.1 nt. matter in this space is mainly hydrogen atoms
A child places a picnic basket on the outer rim of a merry-go-round that has a radius of 5.0 m and revolves once every 26 s. What is the speed of a point on that rim
suppose 4.00 g of hydrogen is separated into electrons and protons. suppose also the protons are placed at the earths
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. What is the magnitude of the tension in the rope
A kicker punts a football from the very center of the field to the sideline 37 yards downfield. What is the direction of the net displacement of the ball?
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