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A coin placed on a turntable rotating at 36.1 rev/min will stay there if its center is placed no further than 7.1cm from the axis of rotation. What is the maximun distance the center of the coin can be placed from the axis if the turntable rotates at 45.5 rev/min?
A simple pendulum consists of a bob of mass 1.8kg attached to a string of length of 2.5m. The pendulum is held at an angle of 30 degrees from the vertical by the light horizontal string attached to a wall.
A ball rolls off a table and falls 0.70 m to the floor, landing with a speed of 4.3 m/s. What is the magnitude of the acceleration of the ball just before it strikes the ground
two small charges with a mass of 1 gram each are connected by 2 cm long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
The work done by an external force to move a 6.50 uC charge from point a to point b is 0.0240 J. The charge started from rest, Find the potential difference, Vba between points
A railroad car of mass 2.1 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A low-power laser used in a physics lab might have a power of 0.40 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
How much work would it take to move a positive charge, 1uC, from the negative side of a parallel plate combination to the positive side when the voltage difference across the plates is 100V
An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 25.00 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (1) How much time elapses from start to stop? ..
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/m^2
A thin uniform rod (mass = 1.75 kg) swings about an axis that passes through one end of the rod, What is the maximum kinetic energy of the rod
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. What is the efficiency and how do we express this in power
A 599 Hz sound wave travels through a substance. What is the speed of sound in the substance
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