Gravitational time dilation can be observed in the spectra of atoms on the surface of the Sun
Indicate whether the statement is true or false
TRUE
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If the radius of the electron orbit in the n = 1 level of the hydrogen atoms is 0.0529 nm, what is its radius for the n = 4 level? (Assume the Bohr model is valid)
a. 1.32 nm c. 0.106 nm b. 0.265 nm d. 0.846 nm
Two equal point charges Q are separated by a distance d. One of the charges is released and moves away from the other due only to the electrical force between them. When the moving charge is a distance 3d from the other charge, what is its kinetic energy?
What will be an ideal response?
An object drops a distance h in a time of 6.3 s on the surface of the earth (neglecting air effects)
How long would it take the same object to drop the same distance on the surface of spherical asteroid X having a mass of 1.1 × 1022 kg and a radius of 4.0 × 105 m? (G = 6.67 × 10-11 N ? m2/kg2, Mearth = 5.97 × 1024 kg, Rearth = 6.38 × 106 m) A) 9.2 s B) 6.3 s C) 5.2 s D) 12 s E) 3.3 s
____________________ Seyfert galaxies are very luminous at X-ray and ultraviolet wavelengths and have broad emission lines in their spectra
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