Which colors will eject electrons when they strike sodium, which has a frequency threshold of 5.7 × 1014 hz?

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.