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Consider an object floating on a pool of water. Suppose much oil is poured onto the water and now ...

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Consider an object floating on a pool of water. Suppose much oil is poured onto the water and now ...

Consider an object floating on a pool of water. Suppose much oil is poured onto the water and now floats above the water, with the object floating with part surrounded by a layer of oil and the lower part still in water.

How has the buoyant force on the object changed by the oil layer? A) decreased
B) remained the same
C) increased

Question 2

Two masses, A and B, are attached to different springs. Mass A vibrates with an amplitude of 8 cm at a frequency of 10 Hz and mass B vibrates with an amplitude of 5 cm at a frequency of 16 Hz.

How does the maximum speed of A compare to the maximum speed of B? A) Mass A has the greater maximum speed.
B) Mass B has the greater maximum speed.
C) They are equal.

Question 3

A gas is quickly compressed in an isolated environment. During the event, the gas exchanged no heat with its surroundings. This process is

A) isothermal.
B) isometric.
C) isobaric.
D) adiabatic.

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Smart ... Thanks!

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