The average distance between the center of the earth and the center of its moon is 3.84 x 108 m. the mass of the earth is 5.97x1024kg. what is the orbital speed and period of earth’s moon?

Abird sitting high in a tree is an example of what type of wnergy

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk, in meters?

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.