The discovery of seafloor spreading led to acceptance of the theory of ______________
Fill in the blank(s) with correct word
plate tectonics, or continental drift
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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?
The energy content of matter itself which was discovered by Albert Einstein in his Special Theory of Relativity is called
A) thermal energy B) radiative energy C) mass-energy D) kinetic energy
A proton and an alpha particle are moving perpendicular to a uniform magnetic field with the same speeds. If the velocity of the proton is at an angle of 20° with respect to the magnetic field direction, at what angle to the magnetic field direction would the alpha particle be moving if it experiences the same magnitude magnetic force as the proton? The alpha particle has 4 times the mass of the
proton and twice its charge. a. 10° b. 62° c. 43° d. 9.8°
Is it possible to see a waxing crescent moon on the overhead meridian at 10 A.M. local time? How about at 4 P.M. local time? Explain your answers