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A top spinning at 4.00 rev/s comes to a stop in 64.0 seconds. Assume that the top slows down at a constant rate.
A. Find the angular acceleration of the top.
B. How many revolutions does it make before coming to a stop?
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.0 kg m2. What is the resulting angular speed of the student and the stool
Estimate the gravitational force between the Sun and Venus. The mass of the Sun is 1.99×10^30 kg. The mass of Venus is 48.7×10^23 kg. The distance between them is 10.8×10^10 m.
The electron is heading at a 45 angle directly toward the wire when it is 50cm away; the electron reaches only as close as 1.0 cm, before being repelled away, always moving in the same plane. If the electron has an initail speed of 3.4 x 10^6 m/s,
What must the charge (sign and magnitude) of a 1.43 g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 630.
What is the peak current (in Amperes) in the filament of a 60W light bulb? Assume it is connected to a standard household A.C.
The beam emerging from a ruby laser (wavelength 694.3 nm) passes through a circular aperture 6.2 mm in diameter. what is the angular spread of the beam
How many wavelengths are contained in the light wave passing back and forth through the oil?
a worker drags a 310 kg crate at a constant velocity of 3 m/s, across a factory floor by pulling on a rope tied to the crate. What is the acceleration of the crate
A 200 g block attached to a horizontal spring is oscillating with an amplitude of 2.0 cm and a frequency of 4.0 Hz. What is the new amplitude
A particle moves along the x axis. Its position is given by the equation x = 2.1 + 2.9t ? 3.5t2with x in meters and t in seconds. Determine its position when it changes direction
Consider the 30N weight held by two cables shown below. The left-hand cable is horizontal. What is the tension in the cable slanted
If i have a hollow copper sphere that has an outer diameter of 20.00 cm that is floating so that everything is just submerged in a bucket of water
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