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For an oscillating air-track glider , the force constant of the spring is k=200N/m and the glider mass is m=0.50kg. Now let's find the angular frequency, frequency, and period of the glider's motion. Suppose we could "tune" this system by varying the mass. What mass would be required for a period of 2.0 s ?
It is possible to turn right handed unit co-ordinate system into a left handed unit system by multiplying all three unit vectors by one scalar determine what is this scalars
A stationary particle of charge q = 2.5 x 10-8 C is placed in a laser beam (an electromagnetic wave) whose intensity is 2.6 x 103 W/m2. find the magnitude of the magnetic forces exerted on the particle
Gas lanterns used on camping trips have mantles (small lacy bags that give off light) made from a rayon mesh impregnated with thorium and other materials. A typical mantle contains 439 mg of thorium. What is the reactivity of the mantle
Pellets of mass 1.0g are fired in parallel paths with speeds of 130m/s through a hole 3.5mm in diameter. How far from the hole must you be to detect a 1.0-cm-diameter spread in the beam of pellets?
A person of mass 79kg stands at the center of a rotating merry-go-round platform of radius 3.3m and moment of inertia 830kg*m^2. Calculate the angular velocity when the person reaches the edge
You toss a pumpkin up into the air and off the building. You are careful to throw exactly vertically, a few feet from the edge of the building so that the pumpkin will not hit the building on the way back down. What is the time required for the pum..
A daredevil decides to jump a canyon. Its walls are equally high and 12 m apart. What minimum speed must he have in order to clear the canyon
A 150-V voltmeter has a resistance of 35000 ohms. When connected in series with a large resistance R across a potential of 110V, the meter reads 70V. Find the resistance
A satellite has a mass of 102 kg and is located at 2.02 106 m above the surface of Earth. find the magnitude of the gravitational force on the satellite
A projectile is fired with an initial speed of 37.8m/s at an angle of 44.7 degrees above the horizontal on a long flat firing range. Determine the total time in the air
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction, Find the direction of the third force acting on the object
the lens of a slide projector with a focal length of 100.0 mm projects a slide onto a screen that is 10.0 m away. how
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