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821.
What is the process by which a gas changes directly from a gas to a solid without passing through the liquid phase called?
Explanation:
822.
Which law of thermodynamics states that heat always flows from a hotter body to a colder body?
Explanation:
823.
What is the direction of the magnetic field around a current-carrying wire according to the right-hand rule?
Explanation:
824.
In an electrical circuit, what is the term for a device that allows electric current to flow in only one direction?
Explanation:
825.
Which optical phenomenon occurs when light waves change direction as they pass from one medium into another with the same refractive index?
Explanation:
826.
What is the term for the bending of light waves when they pass around the edges of an obstacle or aperture?
Explanation:
827.
Which of the following is a unit of angular displacement?
Explanation:
828.
According to the law of universal gravitation, what happens to the gravitational force between two objects if the distance between them is doubled?
Explanation:
829.
Which of the following is an example of an isochoric process?
Explanation:
830.
What is the term for the energy transfer between a system and its surroundings due to a temperature difference?