The greater the mass of a star, the _______________ it moves through its life cycle
a. faster
b. slower
c. Neither of these; mass has no effect on the life cycle of a star.
a
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Each atom in a sample of lithium (Z=3, atomic mass 6.941 u) has all of its electrons removed. If exactly 1.0 C was collected in this way, what is the mass of the lithium sample?
A. 0.010 ?g B. 0.024 ?g C. 0.031 ?g D. 0.072 ?g
What is the acceleration of a rock thrown straight upward on the way up? At the top of its flight? On the way down?
A. The acceleration of the rock thrown upward has the same value of 7.2 m/s-sq downwards at all three points of the rock on way up, stationary at the top of its flight and on way down. The magnitude and direction of the velocity of the rock will not change but the acceleration will remain different in magnitude and direction. B. The acceleration of the rock thrown upward has the same value of - 9.8 m/s2 downwards at all three points of the rock on way up, stationary at the top of its flight and on way down. The magnitude and direction of the velocity of the rock will be changing but the acceleration will remain the same in magnitude and direction throughout its trip. C. The acceleration of the rock thrown downwards has the same value of 5 m/s-sq downwards at all three points of the rock on way up, stationary at the top of its flight and on way down. The magnitude and direction of the velocity of the rock will be changing but the acceleration will remain the same in magnitude and direction throughout its trip.
The greenhouse effect occurs because carbon dioxide in the atmosphere absorbs ultraviolet radiation
a. True b. False Indicate whether the statement is true or false
State Gauss's law
What will be an ideal response?