Newton's Second Law of Motion tells us that the net force applied to an object equals its
A) mass multiplied by acceleration.
B) mass multiplied by energy.
C) momentum multiplied by velocity.
D) mass multiplied by velocity.
A) mass multiplied by acceleration.
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A spaceship departs from the solar system (event A) and travels at a constant velocity to a distant star. It then returns at a constant velocity, finally returning to the solar system (event B). A clock on the spaceship registers which of the following kinds of time between these events?
A. Proper time B. Coordinate time C. Space time interval D. Proper time and space time interval E. Coordinate time and space time interval F. All three
Every red dwarf star that ever joined the main sequence is still there today
Indicate whether the statement is true or false
You hold a tennis racket in your hand. On top of the racket you have balanced a ball. Which statement is true?
A. The force of your hand on the racket and the force of the ball on the racket are equal and opposite. B. The force of the racket on your hand and the force of the ball on the racket are equal and opposite. C. The force of your hand on the racket and the force of the racket on the ball are equal and opposite. D. The force of the racket on your hand and the force of the racket on the ball are equal and opposite. E. The force of your hand on the racket and the force of the racket on your hand are equal and opposite.
During which type of process applied to an ideal gas is there no change in internal energy of the gas?
A) isobaric B) isothermal C) isochoric D) adiabatic E) Internal energy changes during any of these processes.