What type of system would allow light and air to enter and exit? O A. Closed O B. Isolated O C. Open O D. Connected SUBMIT​

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

What happens to an isotope during radioactive decay?