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)
its c its is a mixture of gases
c) up is the direction the magnetic force is acting on the charge.
does anyone know or what?
find the surface area of the sphere to the nearest square unit. use a calculator.
a. 254 in.2
b. 64 in.2
c. 127 in.2
d. 1,018 in.2