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How close would two stationary electrons have to be positioned so that their total mass is 4 times what it is when the electrons are very far apart?
What mass must be added to the train to slow it down to 15 m/s while at the same time keeping the momentum the same as in the second part?
A laser beam is incident on two slits with a separation of 0.10 mm, and a screen is placed 4.00 m from the slits. what is the wavelength of the laser light
The mean distance of an asteroid from the Sun is 2.80 times that of Earth from the Sun. compute the number of years required for the asteroid to make one revolution about the Sun
An airplane pulls a 24 kg banner on a cable as depicted in the figure below. When the plane has a constant cruising velocity the cable makes an angle of ? = 26°
The pressure fluctuation of sound waves at the closed end of a pipe vibrating at resonance is: 1. Minimum 2. 1/2 minimum 3. unchanged 4. maximum 5. 1/2 maximum
A wheel has 8 evenly spaced spokes. What is the angle between the spokes expressed in radians
In the Davisson-Germer Experiment, what will be Bragg Scattering angle Φ (first order) for an electrons? beam when scattered / diffracted from the surface of Ni-crystal with atomic- planes spacing D = 0.215 nm and the kinetic energy of the e-beam ..
If the resistance of each coil is 215 ?, what voltage should the battery supplying each coil have? What power is delivered to each coil?
An ideal gas is brought through an isothermal compression process. what are the temperature of the gas and the final pressur
A 390 nm thick film floats on a puddle of water. When illuminated normally with 700 nm light there is no reflection, but 400 nm light is strongly reflected. What is the film's index of refraction
An atomic nucleus at rest decays radioactively into an alpha particle and a smaller nucleus. What will be the speed of this recoiling nucleus
A certain laser outputs pure blue light (photon energy 3.1 eV) with power 400 milliwatts (0.4watts). How many photons per second does this laser emit
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