Afootball coach starts at the 50-yard line (a) and walks to the 10-yard line (b) he turns around and walks to the 40-yard line (c) he turns around again and walks back to the 0-yard line (d) he turns around once more and walks back to the the 30-yard line

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

What is friction? how does it affect the motion of an object?

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?