Suppose two objects are attracting each other gravitationally. if you double the distance between them, the strength of their gravitational attraction

What part of the ear is names after tools, such as the hammer and the anvil?

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.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.