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A potter's wheel (a solid, uniform disk) of mass 5.7 kg and radius 0.65 m spins about its central axis. A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis. Calculate the rotational inertia of the system.
A device operates in a three process cycle. In process one, the device receives 35kJ of heat and does no work. Determine the COP or efficiency as applicable
Consider the following equations of motion. v = v0 + at ?x = v0t + (1/2) at^2 v2 = v02 + 2a?x (a) Can the equations above be used in a situation where the acceleration varies with time? (b) Can they be used when the acceleration is zero?
A toy train is pushed forward and released at xi = 2.4 m with a speed of 1.4 m/s. What is the train's acceleration after its wheel begins to stick
A string is stretched between fixed supports separated by 75.0 cm. It is observed to have resonant frequencies of 288.0 and 384.0 Hz, What is the lowest resonant frequency for this string
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley. Assume the rope and pulley are massless and there is no friction in the pulley.
What is the force of gravity on the satellite if it moves towards Earth so its distance is now one half the original distance and
A copper ball of mass 150 g is removed from Bunsen burner flame and dropped into 500g of water at -20 %u030AC. what was the temperature of the copper when it left the flame
A 10 N book is placed on a table. a) What is the mass of the book? b) If 20 N of force is needed to keep the book moving at constant velocity, what is the books acceleration
Two 4.4 cm× 4.4 cm metal plates are separated by a 0.19-mm-thick piece of Teflon, What is the maximum potential difference between the disks
A box slides across a frictionless floor with an initial speed v = 2.5 m/s. It encounters a rough region where the coefficient of friction is µk = 0.1. find the shortest length of rough floor which will stop the box
An electron acquires 5.95×10?16J of kinetic energy when it is accelerated by an electric field from plate A to plate B
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, What is the change in the Helmholtz potential
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