What would be an example of chemical change that took a long time to occur

Water in the oceans may become fresh water available to humans through the processes of

Which statement about energy transfer in a wave is true?

What is the difference in the pitch when you are in front of the car compared to behind the car?

A train travels 72 kilometers in 1 hours, and then 64 kilometers in 1 hours. What is its average speed?

Chemical potential energy can be released into energy OA) heat OB) elastic OC) potential

The gravity of mercury is 3.7 n/kg. Find the mass of an astronaut who weights 241 Newton's on mercury

Why does oxygen have a lower ionization energy than nitrogen?

Traditional Indonesian music uses an ensemble called a gamelan that is based on tuned percussion instruments somewhat like gongs. In Bali, the gongs are often grouped in pairs that are slightly out of tune with each other.

An instrument used to detect a static electric charge is called an ammeter. a. true b. false

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficienvy of the engine?