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Why is it that an aneroid barometer is able to measure altitude as well as atmospheric
pressure?
When you drink liquid through a straw, it is more accurate to say that the liquid is
pushed up the straw rather than sucked up the straw. What exactly is pushing? Explain.
What is the mass of a cubic meter of air at 20oC at sea level?
How does the density of gases at different elevations in the atmosphere differ from the
density of liquids at different depths?
What is the buoyant force that acts on a 100-ton ship? (To make things simple, give your
answer in tons.)
If the buoyant force on a submerged object is less than the weight of the object, how do
the densities of the object and water compare?
A 12kg mass is placed on a 30° frictionless inclined plane attached to a pulley connected to a hanging mass of 5kg. What is the acceleration of the system?
A 0.77 kg mass attached to an ideal spring oscillates horizontally with a period of 0.74 s and amplitude of 0.58 m. What is the spring constant?
A 2.83 kg mass attached to an ideal spring oscillates horizontally with an amplitude of 2.64 m. The spring constant is 59.26 N/m. What is the period of the motion?
A glider attached to one end of a string oscillates given by the displacement function x(t)=0.030cas(4.00t). What is the acceleration of the mass after 4.04 seconds?
