If Planck's constant were smaller than it is, would this affect the sizes of atoms?
A) No, because atomic orbits do not exhibit quantum uncertainties.
B) No, because the sizes of atoms are determined by the electromagnetic force acting between the nucleus and the electrons and this force is not affected by quantum phenomena.
C) Yes, atoms would then be larger than they are, because quantum uncertainties would be larger.
D) Yes, atoms would then be larger than they are because the electromagnetic force would be weaker.
E) Yes, atoms would then be smaller than they are, because quantum uncertainties would be smaller.
E
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The ______________ surrounds the nucleus of a comet
a. head or coma b. cloud c. fuzz d. cover e. epinucleus
When gravitational, magnetic and any forces other than static electric forces are not present, electric field lines in the space surrounding a charge distribution show
a. the directions of the forces that exist in space at all times. b. only the directions in which static charges would accelerate when at points on those lines c. only the directions in which moving charges would accelerate when at points on those lines. d. tangents to the directions in which either static or moving charges would accelerate when passing through points on those lines. e. the paths static or moving charges would take.
A bimetallic strip is usable as a thermometer because of the property of __________
Fill in the blank(s) with correct word
The number of official constellations (as defined by the International Astronomical Union) is
A) 56. B) 88. C) 123. D) 205.