In NiCD battery, a fully charged cell is composed of nickelic hydroxide. Nickel is an element that multiple oxidation states. Assume the proportions of the states.
Nickel Charge Proportions Found
0 0.17
+2 0.35
+3 0.33
+4 0.15
a. Determine the cumulative distribution function of nickel charge.
b. Determine the mean and variance of the nickel charge.

Which type of fossil does this image depict?

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Why is the melting of ice a physical change ?