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As you get ready for your early morning physics class, you comb your hair in front of a planar mirror. You know that you are 4.25 m in front of the mirror. How far away from you is your image?
A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
A cyclotron for acceleration deuterons ( A Deuteron has one proton and one neutron) has a magnetic field of .5 T and a radius of 1 m, the frequency of the cyclotron is
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. At 27.1°, Calculate the kinetic coefficent of friction between the block and the plank
Unpolarized light with intensity 370 W/ m^2 passes first through a polarizing filter with its axis vertical, What light intensity emerges from the second filter
A typical power plant uses some fuel as the source of heat (QH) to drive a heat engine that does work (W) to drive a generator that is connected to the electrical grid. Inevitably, waste heat (QC) is dumped into a river or lake. Analysis of the pl..
Two kids decide to race from one end of a 20 meter long moving sidewalk to the other and back. Phillip runs on the sidewalk at 2.0 meters/sec (relative to the sidewalk). Who wins the race
Lonnie pitches a baseball of mass .20 kg. The ball arrives at home plate with a speed of 40 m/s and is batted straight back to Lonnie with a return speed of 60-m/s. If the bat is in contact with the ball for .050 s, what is the impulse experienced..
A series circuit consists of a 15-%uF057 resistor, a 35-mH inductor, and a 25-%uF06DF capacitor. If the frequency is 100 Hz the power factor is
Two mass-spring systems have the same mass and the same total energy. The amplitude of system 1 is three-fourths that of system 2. How do their maximum accelerations compare
q1. using the equation fm v2r for a force an object in circular motion. find the radius r of motion of a m1.6 kg ball
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, What is its kinetic energy at the end of this interval
A juggler throws a ball straight up with some initial velocity. Half a second later, the juggler throws another ball straight up from the same height, then what is the initial velocity of each ball
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