Tutor profile: Nikita P.
Subject: Physics (Newtonian Mechanics)
What are the three Newton's Laws of Motion.
First Law of Motion: “A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force.” The Second Law of Motion: “The force acting on an object is equal to the mass of that object times its acceleration.” The Third Law of Motion: “For every action, there is an equal and opposite reaction.”
Subject: Earth Science
What are the major atmospheric gas constituents?
The major atmospheric gas constituents are as follows: nitrogen (well mixed (78%), oxygen (well mixed 21%), water vapor (0 to 4% depending on altitude and weather), argon (0.95%), and carbon dioxide (0.036% with increasing trend).
What is the difference between mass and weight?
Mass is a measure of how much matter an object has. Weight is a measure of how strongly gravity pulls on that matter. Mass is independent of everything but weight depends on a specific gravitational force at the location of an object.
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