A player cathces a ball. Consider the action force to be the impact of the ball against the players glove. What is the reaction to this force

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

What is the magnitude of the gravitational force acting on the earth due to the sun?

What are two examples of phase changes that skip a phase during transition?