Earthquakes produce p waves, which are longitudinal waves that travel underground. how do these waves move through the soil and rock?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

How many atoms of nitrogen are in the chemical formula ni(w on