Why must you use the same reference point b g h0 on the spring for each subsequent height measurement?
The reference point for measuring the height above the table must be chosen in such
a way that elongation of the spring is the variable that is consistently measured. This
measurement may not be consistent if the masses vary in size or if the bottoms of the
masses are used as the height reference point.
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A layer of water (n = 1.333) floats on carbon tetrachloride (n = 1.461) contained in an aquarium. To the nearest degree, what is the critical angle at the interface between the two liquids?
A. 88° B. 78° C. 66° D. 58° E. 43°
Consider the circuit below. Switch S is closed at t = 0
What is t
In what ways is Earth different from the other terrestrial planets?
A) Its lithosphere is broken into plates that move around. B) It has a much higher percentage of oxygen in its atmosphere. C) Most of its surface is covered with liquid water. D) Life can be found almost everywhere on its surface. E) All of the above are true.
Briefly explain why spectral lines are useful in determining the chemical composition of their source
What will be an ideal response?