Heat is the aggregate kinetic energy of the particles in a given substance, thermal energy is the transfer of that energy

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)

explanation:

since the crust is readily accessible, scientists have been able to perform hands-on experiments to determine its composition; studies on the more distant mantle and core have limited opportunities samples. so scientists also rely on analyses of seismic waves and gravity and as well as magnetic studies.