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A small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the table. A light, stretchless string tied to the small block passes down through the hole, and a larger block with mass m2 is suspended from the free end of the string. The small block, which can be considered a particle, is set into uniform circular motion with radius r and speed v. A) Find the value of v for the small block such that the large block will not move. B) If you then pull down the large block so that the small block is rotating at a distance r2, what is its new velocity? C) How much net work was done pulling down the large mass?
Which of these statements is true about circuit components connected in parallel? The potential drop across each component will be the same. Both the current passing through and the potential drop across each component are different. The same amou..
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
A worker pushes horizontally on a large crate with a force of 297 N, and the crate is moved 4.8 m. How much work was done.
Suppose an observer measures the length of a stationary spaceship to be 6 m (note: m for meters). what is the length of the same spaceship
A fire hose ejects a stream of water at an angle of 30.4 ° above the horizontal. The water leaves the nozzle with a speed of 29.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit t..
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
A 2.20 kg frictionless block is attached to an ideal spring with forces constant 314N/m. At first the block has velocity -3.60 m/s and displacement 0.300-m.
What is the moment of inertia of the object about an axis at the center of mass of the object, What is the moment of inertia of the object about an axis at the left end of the rod
Two astronauts, each having a mass M, are linked by a rope of length d having negligible mass. They are isolated in space, orbiting their center of mass at speeds v.
Sketch a PV diagram and find the work done by the gas during the following stages. Find the net work done during the complete cycle
An atomic nucleus of mass m travelling with speed v collides elastically with a target particle of mass 2.000m (at first at rest) and is scattered at 90.
Charges +Q and +3Q are separated by a distance 2m. Find the location and value of the third charge in terms of Q
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