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A 21.0kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. The equilibrium position of the mass is defined to be at . Somebody pushes the mass to the position x= 0.350m, then lets go. The mass undergoes simple harmonic motion with a period of 3.50s. What is the position of the mass 2.905s after the mass is released?
Consider the same mass and spring discussed in the previous problem. What is the magnitude of the maximum acceleration the mass undergoes during its motion?
assume the earth to be sphere of a uniform densitya what is its rotational energy? take the radius of the earth to be
What angle does the water surface make with the horizontal?
An electron is trapped in a one-dimensional infinite well and is in its first excited state. What is the width of the potential well
The figure shows a graph of the power dissipated in a resistor as a function of the resistance. What quantity does the slope of this graph represent?
The sport of gymnastics requires both impressive physical strength and extensive training for balance. The iron cross is an exercise performed on two suspended rings, which the gymnast grips with his hands
A 1.5-kg mass attached to spring with a force constant of 20.N/m oscillates on a horizontal, frictionless track. At t=0, the mass is released from rest at x=10.0 cm (That is, the spring is stretched by 10.00cm)
determine the internal normal force shear force and moment at points c and d of the
A pair of slits separated by 1.3 mm, are illuminated with monochromatic light of wavelength 573 nm. What is the thickness of the glass
Two identical clocks are synchronized. One is then put in orbitdirected eastward around the Earth while the other remains on theEarth. Which clock runs slower? When the moving clock returns tothe Earth, are the two still synchronized? Photons of l..
The battery has internal resistance of 0.100 Ω, and the rod and rails have negligible resistance. A 2.02 T magnetic field is directed perpendicular to the plane of the circuit. Find the magnetic force on the rod. F= 38.78 N. Find out the rod's spe..
A 17.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 4.50 cm in diameter. How far to the side does the top of the pole flex
place a test lead in one of the big lab magnets and plug both ends in the voltmeter so that it measures voltage on the
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