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A particle of mass m can slide freely along a wire. The wire is straight and horizontal, and is made to rotate about an axis perpendicular to one end at a fixed angular speed wo. At time t = 0 the mass is at radius ro and has zero velocity. Determine the future motion of mass. Suppose zero friction. Find what is the force that the wire exerts on mass?
A singly charged ion of mass m is accelerated from rest by a potential difference ΔV. Determine the ratio of the masses of the ions
Five clocks are being tested in a laboratory. Exactly at noon, as determined by the WWV time signal, on successive days of a week the clocks read as in the following table.
A human can be electrocuted if a current of 0.053 A passes near the heart. If a human is considered to be a resistor in a circuit with a resistance of 2039 ?,
The plane of a flat, circular loop of wire is horizontal. An external magnetic field is directed perpendicular to the plane of the loop. The magnitude of the external magnetic field is increasing with time.
When perspiration on the human body absorbs heat, some of the perspiration turns into water vapor. Find the average energy given to a single water molecule
A sailboat is travelling east at 4.0 m/s. A sudden gust of wind gives the boat an acceleration a = (1.35 m/s2 30° north of east). What is the boat's speed 6.0 seconds later while the gust subsides.
A ball is thrown from an upper story window of a building. Find from what height above ground, was the ball thrown
70-kg astronaut is loaded so heavily with equipment that on Earth he can jump only to a height of 10 cm. How high can he jump on the moon
How much work is done by the outside force in moving the particle from A to B?
A lava bomb is a missile composed of cooling, practicallysolid lava. You are a geologist, watching a volcano launch a lava bomb straight upward. find the Initial Speed at which the lava bomb got launched
a 42 g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. how much nitrogen
A solenoid is wound with a single layer of copper wire of radius 0.480 cm. What is the inductance of the solenoid per unit length
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