Which statements describe the focus of an earthquake? Select three options.
It creates stress in rock.
It develops in the lithosphere.
It is the starting point of an earthquake.
It lies above the surface where rock breaks.
It begins about 100 kilometers below Earth's surface.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static