If you cross a vector with itself, the resultant will be a unit vector
Indicate whether the statement is true or false
FALSE
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Molecular Speeds: A sample of an ideal gas is heated and its Kelvin temperature doubles. If the root-mean-square speed of its molecules was originally v, what is the new root-mean-square speed?
A. 4v
B. 2v
C. v
D. v/
E. v/4
How is the atmosphere of a planet affected by the rotation rate?
A) Faster rotation rates raise the atmospheric temperature. B) The rotation rate determines how long the planet is able to retain its atmosphere. C) The rotation rate determines how much atmosphere a planet has. D) Faster rotation rates produce stronger winds. E) Faster rotation rates raise surface temperatures and thus determine how much material is gaseous versus icy or liquid.
What keeps Earth moving?
A) Actually, it isn't moving. B) gravity C) the energy of space D) its inertia E) solar energy
Explain where the energy to keep water liquid in Europa comes from?
What will be an ideal response?