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An electron inside a hydrogen atom is confined to within a space of 0.110 nm. What is the minimum uncertainty in the electron's velocity? (h = 6.626 × 10-34 J · s, mel = 9.11 × 10-31 kg)
The pressure gauge on a tank registers the gauge pressure, Determine the mass of oxygen that has been withdrawn from the tank when the pressure reading is 22.4 atm
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is abou..
The bird-watcher, however, hears a frequency of 1420 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
question1two long insulated wires lie in the identical horizontal plane. a current of i 17.0 a flows toward the north
Suppose that 20.0 g of ice at 0.0 °C, and 0.180 L of water at 25.0 °C are mixed ideally so that energy is exchanged only between them.
An inductor is connected to the terminals of a battery that has an emf of 12.0 V and negligible internal resistance. What is the resistance R of the inductor
A rod 89 cm long moves in a plane perpendicular to a magnetic field of 510. G. The velocity of the rod is perpendicular to its length. Find the speed of the rod
One example of how shadows can be used to generate art was by Etienne de Silhouette who used to trace people's silhouettes (hence the name).
A female gymnast weighs 620 N. If she is hanging stationary from a high bar, how many forces are acting on her.
A jet aircraft flies over you in straight, level flight at a steady speed. The whine of the engine is audible to you. While the plane is approaching, you gauge the engine whine at 6596Hz. After it passes and is flying away from you, you gauge the whi..
a 2.50 muf capacitor is charged by a 12.0- battery. it is disconnected from the battery and then connected to an
How much heat is needed to boil 5.5 kg of water at its boiling point? The latent heat of vaporization for water is 2250kJ/kg. Show your work.
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