Aparticle (m = 50 g, q = 5.0 mc) is released from rest when it is 50 cm from a second particle (q = -20 mc). determine the magnitude of the initial acceleration of the 50-g particle.

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?

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap