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A 8.0 W laser beam shines on an ensemble of 10^24 electrons, each in the ground state of a one-dimensional infinite square well 0.80nm wide. The photon energy is just high enough to raise an electron to its first excited state. How many electrons can be so excited if the beam shines for 15 ms?
Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. find the maximum magnitude of the electric field
A van der Waals gas undergoes an isothermal expansion from specific volume v1 to specific volume v2. Calculate the change in the specific Helmholtz function for this process.
How are radioactive isotopes produced?
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 5.00 V. The RMS current delivered to the answering machine is 400 mA. If the primary (input) coil of the transformer has 600 tur..
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an amusement park. What is the speed of the rider at the top of the loop
A certain automobile manufacturer claims that its deluxe sports car will accelerate from rest to a speed of 44.5 m/s in 8.45 s. Determine the average acceleration of the car
For a double-slit experiment, the inside edges of two 1.73-mm wide slits are separated by a distance of 1.35 mm. find the separation of the bright fringes on the screen
The enthalpy of the reaction is 22.4 kj/mol CO and the entropy of the reaction is 39.6 kj/K mol CO for a standard state (consisting of 1 weight percent of Oxygen and 1 weight percent of Carbon in steel).
Discuss displacement versus distance moved for an object and illustrate with examples. Define Inertia and explain its consequences on motion
As a particle moves from the origin to (1i + 7j) m, it is acted upon by a force given by (2i + 6j) N. Calculate the work done by this force on the particle
A girl of mass 40 kg jumps with a horizontal velocity of 5 m s-1 onto a stationary cart with frictionless wheels. What is her velocity as the cart starts moving
The ground state of the realistic helium atom is of course nondegenerate. However, consider a hypothetical helium atom in which the two electrons are replaced by two identical spin-one particles of negative charge. Neglect spin-dependent forces. F..
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