If an earthquake wave travels a distance of 4000m in 8 seconds, how fast is the earthquake wave traveling?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

What are the necessary conditions for fusion?