Students in Ms. Bailey's class were studying speed. Four students rolled balls across the floor a distance of 30 cm. Their times are seen here. Put the times in order from fastest to slowest. A) Ball 1 - Ball 2 - Ball 3 - Ball 4 B) Ball 1 - Ball 2 - Ball 4 - Ball 3 C) Ball 2 - Ball 1 - Ball 4 - Ball 3 D) Ball 4 - Ball 3 - Ball 2 - Ball 1

Which type of wave can travel without a medium

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.