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In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton. The force responsible for the electron's circular motion is the electric force of attraction between the electron and the proton.
If the speed of the electron were 4.4×10^(5) m/s , what would be the corresponding orbital radius?
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt, What is the maximum potential of the dome
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 9350 m/s and protons move to the left at 1681 m/s. The particles are evenly spaced with 0.085..
At a pressure of 1 atm, the heat of vaporization of water is 22,260,000 J/kg; use the first law of thermodynamiics to calculate the heat of vaporization of water at 25 celcius
What is the size of the force on the wireA horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current direction is 50° S of W. What is the size of the force on the wire
An object is thrown upward with a speed of 14 m/s on the surface of planet X where the acceleration due to gravity is 3.5 m/s2
The ultrasonic transducer used in medical ultrasoundimaging, is a very thin disk ( m =0.10g) driven back and forth in SHM at 1.0 MHz by an electromagnetic coil.
In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8 Pa. What is the density of seawater at this depth
On a typical mission, the Space Shuttle (m = 2.00 106 kg) orbits at an altitude of 250 km above the Earth's surface. Find the speed of the shuttle in its orbit.
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the average pressure on the other walls
A weight of 45.0 N is suspended from a spring that has a force constant of 220 N/m. Determine the maximum value of the driving force
A thin glass rod is submerged in oil. What is the critical angle for light traveling inside the rod
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