Now please now answer please help

A person hears a sound with a frequency of 100 Hertz. How often does a crest of the sound wave enter the listener’s ear?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical

Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels.the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause,directly and indirectly, for such a rise in sea level is