Unformatted text preview: mass of ice at its melting point. If the initial hot tea is a temperature of
90 C , what is the temperature and mass of the remaining ice when the tea and ice reach
the same temperature?
Physics 153 Term 2 UBC Tutorial Activity Week of Jan 20, 2014 3. When the displacement x(t) in simple harmonic motion is one-half of the amplitude,
what fraction of the total energy is (a) kinetic energy and (b) potential energy. (c) At what
displacement, in terms of the amplitude, is the energy of the system half kinetic energy
and half potential energy?
Problem 1: A sound wave of 40.0cm wavelength enters a tube as shown.
What is be the smallest radius r such that a minimum is heard by the
4. A sound
detector? wave of 40.0cm wavelength enters a tube as shown. What is be the smallest
radius r such that a minimum is heard by the detector? Source end r Detector end 5. A truck traveling at...
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