Smaller worlds are more prone to atmospheric loss via impacts than large worlds because they
A) have no plate tectonics
B) have weaker gravities
C) are more likely to be hit
D) have less internal heat
B
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Predict the boundary layer thickness as a function of the distance from the leading edge for steam at 573 K flowing at 10 m/s over a flat boiler surface.
What will be an ideal response?
Orbital electrons do not spiral into the atomic nucleus because of
1) electrical forces, 2) the wave nature of the electrons, 3) angular momentum, 4) the discreteness of energy levels, 5) quantum mechanical laws, and the electrons have discrete radii from the nucleus because 6) the circumference of each orbit is an integral multiple of the electron wavelength. 7) electrical forces act over discrete distances. 8) energy levels themselves are discrete.
Link to/Prove care
What will be an ideal response?
If the temperature of an ideal gas is increased from 20°C to 40°C, by what percent does the speed of the molecules increase?
A) 3% B) 30% C) 70% D) 100%