CHAPTER 1 OSCILLATORY MOTION
Physics F4
11. A hanging spring has length 10 cm. A 100 g mass is hung from the
stretching, stretching it to 12 cm. what will be the length of the spring
this mass is replaced by a 200 g mass?​

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.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?