A student submerges a small object completely in water. The object has mass and volume . What is the magnitude of the buoyant force on the object? Assume the density of water is and .
A gas in a rigid container is heated from to . If the pressure was initially , what is the final pressure of the gas, assuming the amount of gas remains constant?
A point charge and a point charge are separated by . What is the magnitude of the electric force between them? Use .
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Every multiple-choice question, Section 2 with space to write, and the answer key.