Erica (39 kg ) and Danny (48 kg ) are bouncing on a trampoline. Just as Erica reaches the highest point of her bounce, Danny is moving upward past her at 4.3 m/s. At that instant he grabs hold of her. Required:
What is their speed just after he grabs her?

What is the magnitude of the resultant vector round your answer to the nearest tenth

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.

Properties seen when one one substance changes to another are known as properties