Let's look at the details of eddy-current braking. a square loop, length l on each side, is shot with velocity v0 into a uniform magnetic field b. the field is perpendicular to the plane of the loop. the loop has mass m and resistance r, and it enters the field at t = 0s. assume that the loop is moving to the right along the x-axis and that the field begins at x = 0m.

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?

Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?

Which model displays the change in a gas when the temperature of the gaseous system decreases?