As you know, a common example of a harmonic oscillator is a mass attached to a spring. in this problem, we will consider a horizontally moving block attached to a spring. note that, since the gravitational potential energy is not changing in this case, it can be excluded from the calculations. for such a system, the potential energy is stored in the spring and is given byu=12kx2,where k is the force constant of the spring and x is the distance from the equilibrium position. the kinetic energy of the system is, as always, k=12mv2,where m is the mass of the block and v is the speed of the block. we will also assume that there are no resistive forces; that is, e=constant. a) find the total energy of the object at any point in its motion. b) find the amplitude of the motion. c) find the maximum speed attained by the object during its motion.
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Physics, 21.06.2019 23:30
Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge
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Physics, 22.06.2019 18:30
Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton
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Physics, 22.06.2019 20:00
In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
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As you know, a common example of a harmonic oscillator is a mass attached to a spring. in this probl...
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