An playing card is placed on top of a drinking glass, and a coin is placed on the top of the card. A student quickly flicks the card sideways off the glass, and the coin falls into the glass. Which of these explains why the coin falls into the glass rather than moving to the side with the playing card?
A Newton's First Law of Motion
B Newton's Second Law of Motion
C Newton's Third Law of Motion
D Newton's First Law of Universal Gravitation

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.