PLS ANSWER FAST WILL GIVE Explain to me in YOUR own words, how convection currents create a cycle? In other words, tell me how heat and cooling create a cycle.

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

How many neutrons does plutonium -196 with an atomic number of 78.