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A 2.85 kg bucket is attached to a disk-shaped pulley of radius 0.121 m and mass 0.742 kg. If the bucket is allowed to fall, (a) what is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How far does the bucket drop in 1.50 s?
q1. a 59.0 kg pole vaulter running at 9.5 ms vaults over the bar. if the vaulters horizontal component of velocity over
Water at 20.0 °C is sprayed onto 0.236 kg of molten gold at 1063 °C (its melting point). What is the minimum mass of water that must be used
You have a parallel plate capacitor with plates of 1.3 m2, and the magnitude of charge on each plate is 6.7 C. What is the force on an electron between the plates?
When a current flows in an aluminum wire of diameter 2.13 mm, the drift speed of the conduction electrons is 1.83 × 10-4 m/s. What is the electron current in the wire
Estimate the thickness of the Earth's atmosphere. From your chemistry class, you know that the most common speed of a nitrogen molecule is 640 m/s. What is the altitude
A person walks 25.0° north of east for 2.70 km. How far would the person walk due north and due east to arrive at the similar location.
A jet with mass m = 1.3 × 105 kg jet accelerates down the runway for takeoff at 2.4 m/s2, What is the net vertical force on the airplane as it levels off
Gamma rays are photons with very high energy. What is the wavelength of a gamma-ray photon with energy 605 keV
If 43.8 cm of copper wire (diameter = 1.02 mm, resistivity = 1.69 x 10-8?·m) is formed into a circular loop and placed perpendicular to a uniform magnetic field that is increasing at the constant rate of 8.38 mT/s
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. What is Sam's top speed
A disk of radius 40cm is spinning at a constant angular velocity of 30radian/s. Find the acceleration of a point on the rim of the disk
Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
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