An ice skater performs a pirouette (a fast spin) by pulling in his outstretched arms close to his body. What happens to his angular momentum about the axis of rotation?
A) It does not change.
B) It increases.
C) It changes, but it is impossible to tell which way.
D) It decreases.
A
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Any compound that contains carbon is considered
to be a)a polymer compound b)a CFC compound. c)an organic compound. d)a hydroxyl compound.
Blackbody radiation is emitted from a small hole in a furnace
a. True b. False Indicate whether the statement is true or false
Bernoulli's principle is a statement of the
A) conservation of linear momentum. B) conservation of mass. C) conservation of energy. D) conservation of kinetic energy. E) conservation of angular momentum.
Answer the following statement(s) true (T) or false (F)
1. In a specific non-dispersive medium, a sinusoidal wave’s angular frequency is proportional to its wavenumber 2. In a specific non-dispersive medium, a sinusoidal wave’s period is proportional to its wavelength