The graph represents velocity vs. time for carla.

which best describes the graph?

carla sped up in the beginning of her trip, stopped, and then slowed down.
carla had a greater acceleration in the beginning than in the end.
carla slowed down in the beginning of her trip, stopped, and then sped up.
carla had a continuous acceleration throughout the entire trip.

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap