Which statement best describes the formation of diamonds?
a. diamonds form in talc under very low pressure.
b. diamonds form in talc under very high pressure.
c. diamonds form in kimberlites under very low pressure.
d. diamonds form in kimberlites under very high pressure.

Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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.